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Code Issues Releases Activity

Merge pull request #132 from jesseduffield/feature/project_restructure

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Project Restructure Episode 1
This commit is contained in:
Jesse Duffield 2018-08-14 09:02:38 +10:00 committed by GitHub
commit c0a1f90604
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GPG Key ID: 4AEE18F83AFDEB23
64 changed files with 5287 additions and 4128 deletions
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1
.gitignore vendored
View File

@ -4,5 +4,4 @@ extra/lgit.rb
notes/go.notes notes/go.notes
TODO.notes TODO.notes
TODO.md TODO.md
test/testrepo/
test/repos/repo test/repos/repo

19
Gopkg.lock generated
View File

@ -2,12 +2,12 @@
[[projects]] [[projects]]
digest = "1:a2c1d0e43bd3baaa071d1b9ed72c27d78169b2b269f71c105ac4ba34b1be4a39" digest = "1:b2339e83ce9b5c4f79405f949429a7f68a9a904fed903c672aac1e7ceb7f5f02"
name = "github.com/davecgh/go-spew" name = "github.com/Sirupsen/logrus"
packages = ["spew"] packages = ["."]
pruneopts = "NUT" pruneopts = "NUT"
revision = "346938d642f2ec3594ed81d874461961cd0faa76" revision = "3e01752db0189b9157070a0e1668a620f9a85da2"
version = "v1.1.0" version = "v1.0.6"
[[projects]] [[projects]]
digest = "1:de4a74b504df31145ffa8ca0c4edbffa2f3eb7f466753962184611b618fa5981" digest = "1:de4a74b504df31145ffa8ca0c4edbffa2f3eb7f466753962184611b618fa5981"
@ -50,11 +50,11 @@
[[projects]] [[projects]]
branch = "master" branch = "master"
digest = "1:e9b2b07a20f19d886267876b72ba15f2cbdeeeadd18030a4ce174b864e97c39e" digest = "1:c9a848b0484a72da2dae28957b4f67501fe27fa38bc73f4713e454353c0a4a60"
name = "github.com/jesseduffield/gocui" name = "github.com/jesseduffield/gocui"
packages = ["."] packages = ["."]
pruneopts = "NUT" pruneopts = "NUT"
revision = "8cecad864fb0b099a5f55bf1c97fbc1daca103e0" revision = "432b7f6215f81ef1aaa1b2d9b69887822923cf79"
[[projects]] [[projects]]
digest = "1:8021af4dcbd531ae89433c8c3a6520e51064114aaf8eb1724c3cf911c497c9ba" digest = "1:8021af4dcbd531ae89433c8c3a6520e51064114aaf8eb1724c3cf911c497c9ba"
@ -151,7 +151,7 @@
[[projects]] [[projects]]
branch = "master" branch = "master"
digest = "1:c76f8b24a4d9b99b502fb7b61ad769125075cb570efff9b9b73e6c428629532d" digest = "1:dfcb1b2db354cafa48fc3cdafe4905a08bec4a9757919ab07155db0ca23855b4"
name = "golang.org/x/crypto" name = "golang.org/x/crypto"
packages = [ packages = [
"cast5", "cast5",
@ -170,6 +170,7 @@
"ssh", "ssh",
"ssh/agent", "ssh/agent",
"ssh/knownhosts", "ssh/knownhosts",
"ssh/terminal",
] ]
pruneopts = "NUT" pruneopts = "NUT"
revision = "de0752318171da717af4ce24d0a2e8626afaeb11" revision = "de0752318171da717af4ce24d0a2e8626afaeb11"
@ -282,7 +283,7 @@
analyzer-name = "dep" analyzer-name = "dep"
analyzer-version = 1 analyzer-version = 1
input-imports = [ input-imports = [
"github.com/davecgh/go-spew/spew", "github.com/Sirupsen/logrus",
"github.com/fatih/color", "github.com/fatih/color",
"github.com/golang-collections/collections/stack", "github.com/golang-collections/collections/stack",
"github.com/jesseduffield/gocui", "github.com/jesseduffield/gocui",

135
branches_panel.go
View File

@ -1,135 +0,0 @@
package main
import (
"fmt"
"strings"
"github.com/jesseduffield/gocui"
)
func handleBranchPress(g *gocui.Gui, v *gocui.View) error {
index := getItemPosition(v)
if index == 0 {
return createErrorPanel(g, "You have already checked out this branch")
}
branch := getSelectedBranch(v)
if output, err := gitCheckout(branch.Name, false); err != nil {
createErrorPanel(g, output)
}
return refreshSidePanels(g)
}
func handleForceCheckout(g *gocui.Gui, v *gocui.View) error {
branch := getSelectedBranch(v)
return createConfirmationPanel(g, v, "Force Checkout Branch", "Are you sure you want force checkout? You will lose all local changes", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitCheckout(branch.Name, true); err != nil {
createErrorPanel(g, output)
}
return refreshSidePanels(g)
}, nil)
}
func handleCheckoutByName(g *gocui.Gui, v *gocui.View) error {
createPromptPanel(g, v, "Branch Name:", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitCheckout(trimmedContent(v), false); err != nil {
return createErrorPanel(g, output)
}
return refreshSidePanels(g)
})
return nil
}
func handleNewBranch(g *gocui.Gui, v *gocui.View) error {
branch := state.Branches[0]
createPromptPanel(g, v, "New Branch Name (Branch is off of "+branch.Name+")", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitNewBranch(trimmedContent(v)); err != nil {
return createErrorPanel(g, output)
}
refreshSidePanels(g)
return handleBranchSelect(g, v)
})
return nil
}
func handleDeleteBranch(g *gocui.Gui, v *gocui.View) error {
checkedOutBranch := state.Branches[0]
selectedBranch := getSelectedBranch(v)
if checkedOutBranch.Name == selectedBranch.Name {
return createErrorPanel(g, "You cannot delete the checked out branch!")
}
return createConfirmationPanel(g, v, "Delete Branch", "Are you sure you want delete the branch "+selectedBranch.Name+" ?", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitDeleteBranch(selectedBranch.Name); err != nil {
return createErrorPanel(g, output)
}
return refreshSidePanels(g)
}, nil)
}
func handleMerge(g *gocui.Gui, v *gocui.View) error {
checkedOutBranch := state.Branches[0]
selectedBranch := getSelectedBranch(v)
defer refreshSidePanels(g)
if checkedOutBranch.Name == selectedBranch.Name {
return createErrorPanel(g, "You cannot merge a branch into itself")
}
if output, err := gitMerge(selectedBranch.Name); err != nil {
return createErrorPanel(g, output)
}
return nil
}
func getSelectedBranch(v *gocui.View) Branch {
lineNumber := getItemPosition(v)
return state.Branches[lineNumber]
}
func renderBranchesOptions(g *gocui.Gui) error {
return renderOptionsMap(g, map[string]string{
"space": "checkout",
"f": "force checkout",
"m": "merge",
"c": "checkout by name",
"n": "new branch",
"d": "delete branch",
"← → ↑ ↓": "navigate",
})
}
// may want to standardise how these select methods work
func handleBranchSelect(g *gocui.Gui, v *gocui.View) error {
if err := renderBranchesOptions(g); err != nil {
return err
}
// This really shouldn't happen: there should always be a master branch
if len(state.Branches) == 0 {
return renderString(g, "main", "No branches for this repo")
}
go func() {
branch := getSelectedBranch(v)
diff, err := getBranchGraph(branch.Name)
if err != nil && strings.HasPrefix(diff, "fatal: ambiguous argument") {
diff = "There is no tracking for this branch"
}
renderString(g, "main", diff)
}()
return nil
}
// refreshStatus is called at the end of this because that's when we can
// be sure there is a state.Branches array to pick the current branch from
func refreshBranches(g *gocui.Gui) error {
g.Update(func(g *gocui.Gui) error {
v, err := g.View("branches")
if err != nil {
panic(err)
}
state.Branches = getGitBranches()
v.Clear()
for _, branch := range state.Branches {
fmt.Fprintln(v, branch.getDisplayString())
}
resetOrigin(v)
return refreshStatus(g)
})
return nil
}

45
commit_message_panel.go
View File

@ -1,45 +0,0 @@
package main
import "github.com/jesseduffield/gocui"
func handleCommitConfirm(g *gocui.Gui, v *gocui.View) error {
message := trimmedContent(v)
if message == "" {
return createErrorPanel(g, "You cannot commit without a commit message")
}
if output, err := gitCommit(g, message); err != nil {
if err == errNoUsername {
return createErrorPanel(g, err.Error())
}
return createErrorPanel(g, output)
}
refreshFiles(g)
v.Clear()
v.SetCursor(0, 0)
g.SetViewOnBottom("commitMessage")
switchFocus(g, v, getFilesView(g))
return refreshCommits(g)
}
func handleCommitClose(g *gocui.Gui, v *gocui.View) error {
g.SetViewOnBottom("commitMessage")
return switchFocus(g, v, getFilesView(g))
}
func handleNewlineCommitMessage(g *gocui.Gui, v *gocui.View) error {
// resising ahead of time so that the top line doesn't get hidden to make
// room for the cursor on the second line
x0, y0, x1, y1 := getConfirmationPanelDimensions(g, v.Buffer())
if _, err := g.SetView("commitMessage", x0, y0, x1, y1+1, 0); err != nil {
if err != gocui.ErrUnknownView {
return err
}
}
v.EditNewLine()
return nil
}
func handleCommitFocused(g *gocui.Gui, v *gocui.View) error {
return renderString(g, "options", "esc: close, enter: confirm")
}

176
commits_panel.go
View File

@ -1,176 +0,0 @@
package main
import (
"errors"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
)
var (
// ErrNoCommits : When no commits are found for the branch
ErrNoCommits = errors.New("No commits for this branch")
)
func refreshCommits(g *gocui.Gui) error {
g.Update(func(*gocui.Gui) error {
state.Commits = getCommits()
v, err := g.View("commits")
if err != nil {
panic(err)
}
v.Clear()
red := color.New(color.FgRed)
yellow := color.New(color.FgYellow)
white := color.New(color.FgWhite)
shaColor := white
for _, commit := range state.Commits {
if commit.Pushed {
shaColor = red
} else {
shaColor = yellow
}
shaColor.Fprint(v, commit.Sha+" ")
white.Fprintln(v, commit.Name)
}
refreshStatus(g)
if g.CurrentView().Name() == "commits" {
handleCommitSelect(g, v)
}
return nil
})
return nil
}
func handleResetToCommit(g *gocui.Gui, commitView *gocui.View) error {
return createConfirmationPanel(g, commitView, "Reset To Commit", "Are you sure you want to reset to this commit?", func(g *gocui.Gui, v *gocui.View) error {
commit, err := getSelectedCommit(g)
if err != nil {
panic(err)
}
if output, err := gitResetToCommit(commit.Sha); err != nil {
return createErrorPanel(g, output)
}
if err := refreshCommits(g); err != nil {
panic(err)
}
if err := refreshFiles(g); err != nil {
panic(err)
}
resetOrigin(commitView)
return handleCommitSelect(g, nil)
}, nil)
}
func renderCommitsOptions(g *gocui.Gui) error {
return renderOptionsMap(g, map[string]string{
"s": "squash down",
"r": "rename",
"g": "reset to this commit",
"f": "fixup commit",
"← → ↑ ↓": "navigate",
})
}
func handleCommitSelect(g *gocui.Gui, v *gocui.View) error {
if err := renderCommitsOptions(g); err != nil {
return err
}
commit, err := getSelectedCommit(g)
if err != nil {
if err != ErrNoCommits {
return err
}
return renderString(g, "main", "No commits for this branch")
}
commitText := gitShow(commit.Sha)
return renderString(g, "main", commitText)
}
func handleCommitSquashDown(g *gocui.Gui, v *gocui.View) error {
if getItemPosition(v) != 0 {
return createErrorPanel(g, "Can only squash topmost commit")
}
if len(state.Commits) == 1 {
return createErrorPanel(g, "You have no commits to squash with")
}
commit, err := getSelectedCommit(g)
if err != nil {
return err
}
if output, err := gitSquashPreviousTwoCommits(commit.Name); err != nil {
return createErrorPanel(g, output)
}
if err := refreshCommits(g); err != nil {
panic(err)
}
refreshStatus(g)
return handleCommitSelect(g, v)
}
// TODO: move to files panel
func anyUnStagedChanges(files []GitFile) bool {
for _, file := range files {
if file.Tracked && file.HasUnstagedChanges {
return true
}
}
return false
}
func handleCommitFixup(g *gocui.Gui, v *gocui.View) error {
if len(state.Commits) == 1 {
return createErrorPanel(g, "You have no commits to squash with")
}
objectLog(state.GitFiles)
if anyUnStagedChanges(state.GitFiles) {
return createErrorPanel(g, "Can't fixup while there are unstaged changes")
}
branch := state.Branches[0]
commit, err := getSelectedCommit(g)
if err != nil {
return err
}
createConfirmationPanel(g, v, "Fixup", "Are you sure you want to fixup this commit? The commit beneath will be squashed up into this one", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitSquashFixupCommit(branch.Name, commit.Sha); err != nil {
return createErrorPanel(g, output)
}
if err := refreshCommits(g); err != nil {
panic(err)
}
return refreshStatus(g)
}, nil)
return nil
}
func handleRenameCommit(g *gocui.Gui, v *gocui.View) error {
if getItemPosition(v) != 0 {
return createErrorPanel(g, "Can only rename topmost commit")
}
createPromptPanel(g, v, "Rename Commit", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitRenameCommit(v.Buffer()); err != nil {
return createErrorPanel(g, output)
}
if err := refreshCommits(g); err != nil {
panic(err)
}
return handleCommitSelect(g, v)
})
return nil
}
func getSelectedCommit(g *gocui.Gui) (Commit, error) {
v, err := g.View("commits")
if err != nil {
panic(err)
}
if len(state.Commits) == 0 {
return Commit{}, ErrNoCommits
}
lineNumber := getItemPosition(v)
if lineNumber > len(state.Commits)-1 {
devLog("potential error in getSelected Commit (mismatched ui and state)", state.Commits, lineNumber)
return state.Commits[len(state.Commits)-1], nil
}
return state.Commits[lineNumber], nil
}

362
files_panel.go
View File

@ -1,362 +0,0 @@
package main
import (
// "io"
// "io/ioutil"
// "strings"
"errors"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
)
var (
errNoFiles = errors.New("No changed files")
errNoUsername = errors.New(`No username set. Please do: git config --global user.name "Your Name"`)
)
func stagedFiles(files []GitFile) []GitFile {
result := make([]GitFile, 0)
for _, file := range files {
if file.HasStagedChanges {
result = append(result, file)
}
}
return result
}
func stageSelectedFile(g *gocui.Gui) error {
file, err := getSelectedFile(g)
if err != nil {
return err
}
return stageFile(file.Name)
}
func handleFilePress(g *gocui.Gui, v *gocui.View) error {
file, err := getSelectedFile(g)
if err != nil {
if err == errNoFiles {
return nil
}
return err
}
if file.HasMergeConflicts {
return handleSwitchToMerge(g, v)
}
if file.HasUnstagedChanges {
stageFile(file.Name)
} else {
unStageFile(file.Name, file.Tracked)
}
if err := refreshFiles(g); err != nil {
return err
}
return handleFileSelect(g, v)
}
func handleAddPatch(g *gocui.Gui, v *gocui.View) error {
file, err := getSelectedFile(g)
if err != nil {
if err == errNoFiles {
return nil
}
return err
}
if !file.HasUnstagedChanges {
return createErrorPanel(g, "File has no unstaged changes to add")
}
if !file.Tracked {
return createErrorPanel(g, "Cannot git add --patch untracked files")
}
gitAddPatch(g, file.Name)
return err
}
func getSelectedFile(g *gocui.Gui) (GitFile, error) {
if len(state.GitFiles) == 0 {
return GitFile{}, errNoFiles
}
filesView, err := g.View("files")
if err != nil {
panic(err)
}
lineNumber := getItemPosition(filesView)
return state.GitFiles[lineNumber], nil
}
func handleFileRemove(g *gocui.Gui, v *gocui.View) error {
file, err := getSelectedFile(g)
if err != nil {
if err == errNoFiles {
return nil
}
return err
}
var deleteVerb string
if file.Tracked {
deleteVerb = "checkout"
} else {
deleteVerb = "delete"
}
return createConfirmationPanel(g, v, strings.Title(deleteVerb)+" file", "Are you sure you want to "+deleteVerb+" "+file.Name+" (you will lose your changes)?", func(g *gocui.Gui, v *gocui.View) error {
if err := removeFile(file); err != nil {
panic(err)
}
return refreshFiles(g)
}, nil)
}
func handleIgnoreFile(g *gocui.Gui, v *gocui.View) error {
file, err := getSelectedFile(g)
if err != nil {
return createErrorPanel(g, err.Error())
}
if file.Tracked {
return createErrorPanel(g, "Cannot ignore tracked files")
}
gitIgnore(file.Name)
return refreshFiles(g)
}
func renderfilesOptions(g *gocui.Gui, gitFile *GitFile) error {
optionsMap := map[string]string{
"← → ↑ ↓": "navigate",
"S": "stash files",
"c": "commit changes",
"o": "open",
"i": "ignore",
"d": "delete",
"space": "toggle staged",
"R": "refresh",
"t": "add patch",
"e": "edit",
"PgUp/PgDn": "scroll",
}
if state.HasMergeConflicts {
optionsMap["a"] = "abort merge"
optionsMap["m"] = "resolve merge conflicts"
}
if gitFile == nil {
return renderOptionsMap(g, optionsMap)
}
if gitFile.Tracked {
optionsMap["d"] = "checkout"
}
return renderOptionsMap(g, optionsMap)
}
func handleFileSelect(g *gocui.Gui, v *gocui.View) error {
gitFile, err := getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return err
}
renderString(g, "main", "No changed files")
return renderfilesOptions(g, nil)
}
renderfilesOptions(g, &gitFile)
var content string
if gitFile.HasMergeConflicts {
return refreshMergePanel(g)
}
content = getDiff(gitFile)
return renderString(g, "main", content)
}
func handleCommitPress(g *gocui.Gui, filesView *gocui.View) error {
if len(stagedFiles(state.GitFiles)) == 0 && !state.HasMergeConflicts {
return createErrorPanel(g, "There are no staged files to commit")
}
commitMessageView := getCommitMessageView(g)
g.Update(func(g *gocui.Gui) error {
g.SetViewOnTop("commitMessage")
switchFocus(g, filesView, commitMessageView)
return nil
})
return nil
}
func handleCommitEditorPress(g *gocui.Gui, filesView *gocui.View) error {
if len(stagedFiles(state.GitFiles)) == 0 && !state.HasMergeConflicts {
return createErrorPanel(g, "There are no staged files to commit")
}
runSubProcess(g, "git", "commit")
return nil
}
func genericFileOpen(g *gocui.Gui, v *gocui.View, open func(*gocui.Gui, string) (string, error)) error {
file, err := getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return err
}
return nil
}
if _, err := open(g, file.Name); err != nil {
return createErrorPanel(g, err.Error())
}
return nil
}
func handleFileEdit(g *gocui.Gui, v *gocui.View) error {
return genericFileOpen(g, v, editFile)
}
func handleFileOpen(g *gocui.Gui, v *gocui.View) error {
return genericFileOpen(g, v, openFile)
}
func handleSublimeFileOpen(g *gocui.Gui, v *gocui.View) error {
return genericFileOpen(g, v, sublimeOpenFile)
}
func handleVsCodeFileOpen(g *gocui.Gui, v *gocui.View) error {
return genericFileOpen(g, v, vsCodeOpenFile)
}
func handleRefreshFiles(g *gocui.Gui, v *gocui.View) error {
return refreshFiles(g)
}
func refreshStateGitFiles() {
// get files to stage
gitFiles := getGitStatusFiles()
state.GitFiles = mergeGitStatusFiles(state.GitFiles, gitFiles)
updateHasMergeConflictStatus()
}
func updateHasMergeConflictStatus() error {
merging, err := isInMergeState()
if err != nil {
return err
}
state.HasMergeConflicts = merging
return nil
}
func renderGitFile(gitFile GitFile, filesView *gocui.View) {
// potentially inefficient to be instantiating these color
// objects with each render
red := color.New(color.FgRed)
green := color.New(color.FgGreen)
if !gitFile.Tracked && !gitFile.HasStagedChanges {
red.Fprintln(filesView, gitFile.DisplayString)
return
}
green.Fprint(filesView, gitFile.DisplayString[0:1])
red.Fprint(filesView, gitFile.DisplayString[1:3])
if gitFile.HasUnstagedChanges {
red.Fprintln(filesView, gitFile.Name)
} else {
green.Fprintln(filesView, gitFile.Name)
}
}
func catSelectedFile(g *gocui.Gui) (string, error) {
item, err := getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return "", err
}
return "", renderString(g, "main", "No file to display")
}
cat, err := catFile(item.Name)
if err != nil {
panic(err)
}
return cat, nil
}
func refreshFiles(g *gocui.Gui) error {
filesView, err := g.View("files")
if err != nil {
return err
}
refreshStateGitFiles()
filesView.Clear()
for _, gitFile := range state.GitFiles {
renderGitFile(gitFile, filesView)
}
correctCursor(filesView)
if filesView == g.CurrentView() {
handleFileSelect(g, filesView)
}
return nil
}
func pullFiles(g *gocui.Gui, v *gocui.View) error {
createMessagePanel(g, v, "", "Pulling...")
go func() {
if output, err := gitPull(); err != nil {
createErrorPanel(g, output)
} else {
closeConfirmationPrompt(g)
refreshCommits(g)
refreshStatus(g)
}
refreshFiles(g)
}()
return nil
}
func pushFiles(g *gocui.Gui, v *gocui.View) error {
createMessagePanel(g, v, "", "Pushing...")
go func() {
if output, err := gitPush(); err != nil {
createErrorPanel(g, output)
} else {
closeConfirmationPrompt(g)
refreshCommits(g)
refreshStatus(g)
}
}()
return nil
}
func handleSwitchToMerge(g *gocui.Gui, v *gocui.View) error {
mergeView, err := g.View("main")
if err != nil {
return err
}
file, err := getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return err
}
return nil
}
if !file.HasMergeConflicts {
return createErrorPanel(g, "This file has no merge conflicts")
}
switchFocus(g, v, mergeView)
return refreshMergePanel(g)
}
func handleAbortMerge(g *gocui.Gui, v *gocui.View) error {
output, err := gitAbortMerge()
if err != nil {
return createErrorPanel(g, output)
}
createMessagePanel(g, v, "", "Merge aborted")
refreshStatus(g)
return refreshFiles(g)
}
func handleResetHard(g *gocui.Gui, v *gocui.View) error {
return createConfirmationPanel(g, v, "Clear file panel", "Are you sure you want `reset --hard HEAD`? You may lose changes", func(g *gocui.Gui, v *gocui.View) error {
if err := gitResetHard(); err != nil {
createErrorPanel(g, err.Error())
}
return refreshFiles(g)
}, nil)
}

529
gitcommands.go
View File

@ -1,529 +0,0 @@
package main
import (
// "log"
"errors"
"fmt"
"os"
"os/exec"
"strings"
"github.com/jesseduffield/gocui"
gitconfig "github.com/tcnksm/go-gitconfig"
git "gopkg.in/src-d/go-git.v4"
)
var (
// ErrNoOpenCommand : When we don't know which command to use to open a file
ErrNoOpenCommand = errors.New("Unsure what command to use to open this file")
)
// GitFile : A staged/unstaged file
// TODO: decide whether to give all of these the Git prefix
type GitFile struct {
Name string
HasStagedChanges bool
HasUnstagedChanges bool
Tracked bool
Deleted bool
HasMergeConflicts bool
DisplayString string
}
// Commit : A git commit
type Commit struct {
Sha string
Name string
Pushed bool
DisplayString string
}
// StashEntry : A git stash entry
type StashEntry struct {
Index int
Name string
DisplayString string
}
// Map (from https://gobyexample.com/collection-functions)
func Map(vs []string, f func(string) string) []string {
vsm := make([]string, len(vs))
for i, v := range vs {
vsm[i] = f(v)
}
return vsm
}
func includesString(list []string, a string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
// not sure how to genericise this because []interface{} doesn't accept e.g.
// []int arguments
func includesInt(list []int, a int) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
func mergeGitStatusFiles(oldGitFiles, newGitFiles []GitFile) []GitFile {
if len(oldGitFiles) == 0 {
return newGitFiles
}
appendedIndexes := make([]int, 0)
// retain position of files we already could see
result := make([]GitFile, 0)
for _, oldGitFile := range oldGitFiles {
for newIndex, newGitFile := range newGitFiles {
if oldGitFile.Name == newGitFile.Name {
result = append(result, newGitFile)
appendedIndexes = append(appendedIndexes, newIndex)
break
}
}
}
// append any new files to the end
for index, newGitFile := range newGitFiles {
if !includesInt(appendedIndexes, index) {
result = append(result, newGitFile)
}
}
return result
}
// only to be used when you're already in an error state
func runDirectCommandIgnoringError(command string) string {
output, _ := runDirectCommand(command)
return output
}
func runDirectCommand(command string) (string, error) {
commandLog(command)
cmdOut, err := exec.
Command(state.Platform.shell, state.Platform.shellArg, command).
CombinedOutput()
return sanitisedCommandOutput(cmdOut, err)
}
func branchStringParts(branchString string) (string, string) {
// expect string to be something like '4w master`
splitBranchName := strings.Split(branchString, "\t")
// if we have no \t then we have no recency, so just output that as blank
if len(splitBranchName) == 1 {
return "", branchString
}
return splitBranchName[0], splitBranchName[1]
}
// TODO: DRY up this function and getGitBranches
func getGitStashEntries() []StashEntry {
stashEntries := make([]StashEntry, 0)
rawString, _ := runDirectCommand("git stash list --pretty='%gs'")
for i, line := range splitLines(rawString) {
stashEntries = append(stashEntries, stashEntryFromLine(line, i))
}
return stashEntries
}
func stashEntryFromLine(line string, index int) StashEntry {
return StashEntry{
Name: line,
Index: index,
DisplayString: line,
}
}
func getStashEntryDiff(index int) (string, error) {
return runCommand("git stash show -p --color stash@{" + fmt.Sprint(index) + "}")
}
func includes(array []string, str string) bool {
for _, arrayStr := range array {
if arrayStr == str {
return true
}
}
return false
}
func getGitStatusFiles() []GitFile {
statusOutput, _ := getGitStatus()
statusStrings := splitLines(statusOutput)
gitFiles := make([]GitFile, 0)
for _, statusString := range statusStrings {
change := statusString[0:2]
stagedChange := change[0:1]
unstagedChange := statusString[1:2]
filename := statusString[3:]
tracked := !includes([]string{"??", "A "}, change)
gitFile := GitFile{
Name: filename,
DisplayString: statusString,
HasStagedChanges: !includes([]string{" ", "U", "?"}, stagedChange),
HasUnstagedChanges: unstagedChange != " ",
Tracked: tracked,
Deleted: unstagedChange == "D" || stagedChange == "D",
HasMergeConflicts: change == "UU",
}
gitFiles = append(gitFiles, gitFile)
}
objectLog(gitFiles)
return gitFiles
}
func gitStashDo(index int, method string) (string, error) {
return runCommand("git stash " + method + " stash@{" + fmt.Sprint(index) + "}")
}
func gitStashSave(message string) (string, error) {
output, err := runCommand("git stash save \"" + message + "\"")
if err != nil {
return output, err
}
// if there are no local changes to save, the exit code is 0, but we want
// to raise an error
if output == "No local changes to save\n" {
return output, errors.New(output)
}
return output, nil
}
func gitCheckout(branch string, force bool) (string, error) {
forceArg := ""
if force {
forceArg = "--force "
}
return runCommand("git checkout " + forceArg + branch)
}
func sanitisedCommandOutput(output []byte, err error) (string, error) {
outputString := string(output)
if outputString == "" && err != nil {
return err.Error(), err
}
return outputString, err
}
func runCommand(command string) (string, error) {
commandLog(command)
splitCmd := strings.Split(command, " ")
cmdOut, err := exec.Command(splitCmd[0], splitCmd[1:]...).CombinedOutput()
return sanitisedCommandOutput(cmdOut, err)
}
func vsCodeOpenFile(g *gocui.Gui, filename string) (string, error) {
return runCommand("code -r " + filename)
}
func sublimeOpenFile(g *gocui.Gui, filename string) (string, error) {
return runCommand("subl " + filename)
}
func openFile(g *gocui.Gui, filename string) (string, error) {
cmdName, cmdTrail, err := getOpenCommand()
if err != nil {
return "", err
}
return runCommand(cmdName + " " + filename + cmdTrail)
}
func getOpenCommand() (string, string, error) {
//NextStep open equivalents: xdg-open (linux), cygstart (cygwin), open (OSX)
trailMap := map[string]string{
"xdg-open": " &>/dev/null &",
"cygstart": "",
"open": "",
}
for name, trail := range trailMap {
if out, _ := runCommand("which " + name); out != "exit status 1" {
return name, trail, nil
}
}
return "", "", ErrNoOpenCommand
}
func gitAddPatch(g *gocui.Gui, filename string) {
runSubProcess(g, "git", "add", "--patch", filename)
}
func editFile(g *gocui.Gui, filename string) (string, error) {
editor, _ := gitconfig.Global("core.editor")
if editor == "" {
editor = os.Getenv("VISUAL")
}
if editor == "" {
editor = os.Getenv("EDITOR")
}
if editor == "" {
if _, err := runCommand("which vi"); err == nil {
editor = "vi"
}
}
if editor == "" {
return "", createErrorPanel(g, "No editor defined in $VISUAL, $EDITOR, or git config.")
}
runSubProcess(g, editor, filename)
return "", nil
}
func runSubProcess(g *gocui.Gui, cmdName string, commandArgs ...string) {
subprocess = exec.Command(cmdName, commandArgs...)
subprocess.Stdin = os.Stdin
subprocess.Stdout = os.Stdout
subprocess.Stderr = os.Stderr
g.Update(func(g *gocui.Gui) error {
return ErrSubprocess
})
}
func getBranchGraph(branch string) (string, error) {
return runCommand("git log --graph --color --abbrev-commit --decorate --date=relative --pretty=medium -100 " + branch)
}
func verifyInGitRepo() {
if output, err := runCommand("git status"); err != nil {
fmt.Println(output)
os.Exit(1)
}
}
func getCommits() []Commit {
pushables := gitCommitsToPush()
log := getLog()
commits := make([]Commit, 0)
// now we can split it up and turn it into commits
lines := splitLines(log)
for _, line := range lines {
splitLine := strings.Split(line, " ")
sha := splitLine[0]
pushed := includesString(pushables, sha)
commits = append(commits, Commit{
Sha: sha,
Name: strings.Join(splitLine[1:], " "),
Pushed: pushed,
DisplayString: strings.Join(splitLine, " "),
})
}
return commits
}
func getLog() string {
// currently limiting to 30 for performance reasons
// TODO: add lazyloading when you scroll down
result, err := runDirectCommand("git log --oneline -30")
if err != nil {
// assume if there is an error there are no commits yet for this branch
return ""
}
return result
}
func gitIgnore(filename string) {
if _, err := runDirectCommand("echo '" + filename + "' >> .gitignore"); err != nil {
panic(err)
}
}
func gitShow(sha string) string {
result, err := runDirectCommand("git show --color " + sha)
if err != nil {
panic(err)
}
return result
}
func getDiff(file GitFile) string {
cachedArg := ""
if file.HasStagedChanges && !file.HasUnstagedChanges {
cachedArg = "--cached "
}
deletedArg := ""
if file.Deleted {
deletedArg = "-- "
}
trackedArg := ""
if !file.Tracked && !file.HasStagedChanges {
trackedArg = "--no-index /dev/null "
}
command := "git diff --color " + cachedArg + deletedArg + trackedArg + file.Name
// for now we assume an error means the file was deleted
s, _ := runCommand(command)
return s
}
func catFile(file string) (string, error) {
return runDirectCommand("cat " + file)
}
func stageFile(file string) error {
_, err := runCommand("git add " + file)
return err
}
func unStageFile(file string, tracked bool) error {
var command string
if tracked {
command = "git reset HEAD "
} else {
command = "git rm --cached "
}
_, err := runCommand(command + file)
return err
}
func getGitStatus() (string, error) {
return runCommand("git status --untracked-files=all --short")
}
func isInMergeState() (bool, error) {
output, err := runCommand("git status --untracked-files=all")
if err != nil {
return false, err
}
return strings.Contains(output, "conclude merge") || strings.Contains(output, "unmerged paths"), nil
}
func removeFile(file GitFile) error {
// if the file isn't tracked, we assume you want to delete it
if !file.Tracked {
_, err := runCommand("rm -rf ./" + file.Name)
return err
}
// if the file is tracked, we assume you want to just check it out
_, err := runCommand("git checkout " + file.Name)
return err
}
func gitCommit(g *gocui.Gui, message string) (string, error) {
gpgsign, _ := gitconfig.Global("commit.gpgsign")
if gpgsign != "" {
runSubProcess(g, "git", "commit")
return "", nil
}
return runDirectCommand("git commit -m \"" + message + "\"")
}
func gitPull() (string, error) {
return runDirectCommand("git pull --no-edit")
}
func gitPush() (string, error) {
return runDirectCommand("git push -u origin " + state.Branches[0].Name)
}
func gitSquashPreviousTwoCommits(message string) (string, error) {
return runDirectCommand("git reset --soft HEAD^ && git commit --amend -m \"" + message + "\"")
}
func gitSquashFixupCommit(branchName string, shaValue string) (string, error) {
var err error
commands := []string{
"git checkout -q " + shaValue,
"git reset --soft " + shaValue + "^",
"git commit --amend -C " + shaValue + "^",
"git rebase --onto HEAD " + shaValue + " " + branchName,
}
ret := ""
for _, command := range commands {
devLog(command)
output, err := runDirectCommand(command)
ret += output
if err != nil {
devLog(ret)
break
}
}
if err != nil {
// We are already in an error state here so we're just going to append
// the output of these commands
ret += runDirectCommandIgnoringError("git branch -d " + shaValue)
ret += runDirectCommandIgnoringError("git checkout " + branchName)
}
return ret, err
}
func gitRenameCommit(message string) (string, error) {
return runDirectCommand("git commit --allow-empty --amend -m \"" + message + "\"")
}
func gitFetch() (string, error) {
return runDirectCommand("git fetch")
}
func gitResetToCommit(sha string) (string, error) {
return runDirectCommand("git reset " + sha)
}
func gitNewBranch(name string) (string, error) {
return runDirectCommand("git checkout -b " + name)
}
func gitDeleteBranch(branch string) (string, error) {
return runCommand("git branch -d " + branch)
}
func gitListStash() (string, error) {
return runDirectCommand("git stash list")
}
func gitMerge(branchName string) (string, error) {
return runDirectCommand("git merge --no-edit " + branchName)
}
func gitAbortMerge() (string, error) {
return runDirectCommand("git merge --abort")
}
func gitUpstreamDifferenceCount() (string, string) {
pushableCount, err := runDirectCommand("git rev-list @{u}..head --count")
if err != nil {
return "?", "?"
}
pullableCount, err := runDirectCommand("git rev-list head..@{u} --count")
if err != nil {
return "?", "?"
}
return strings.TrimSpace(pushableCount), strings.TrimSpace(pullableCount)
}
func gitCommitsToPush() []string {
pushables, err := runDirectCommand("git rev-list @{u}..head --abbrev-commit")
if err != nil {
return make([]string, 0)
}
return splitLines(pushables)
}
func getGitBranches() []Branch {
builder := newBranchListBuilder()
return builder.build()
}
func branchIncluded(branchName string, branches []Branch) bool {
for _, existingBranch := range branches {
if strings.ToLower(existingBranch.Name) == strings.ToLower(branchName) {
return true
}
}
return false
}
func gitResetHard() error {
return w.Reset(&git.ResetOptions{Mode: git.HardReset})
}

94
main.go
View File

@ -1,36 +1,25 @@
package main package main
import ( import (
"errors"
"flag" "flag"
"fmt" "fmt"
"io/ioutil" "io/ioutil"
"log" "log"
"os" "os"
"os/exec"
"os/user" "os/user"
"path/filepath" "path/filepath"
"github.com/davecgh/go-spew/spew" "github.com/jesseduffield/lazygit/pkg/app"
"github.com/jesseduffield/lazygit/pkg/config"
"github.com/jesseduffield/gocui"
git "gopkg.in/src-d/go-git.v4"
) )
// ErrSubProcess is raised when we are running a subprocess
var ( var (
ErrSubprocess = errors.New("running subprocess")
subprocess *exec.Cmd
commit string commit string
version = "unversioned" version = "unversioned"
date string date string
debuggingFlag = flag.Bool("debug", false, "a boolean") debuggingFlag = flag.Bool("debug", false, "a boolean")
versionFlag = flag.Bool("v", false, "Print the current version") versionFlag = flag.Bool("v", false, "Print the current version")
w *git.Worktree
r *git.Repository
) )
func homeDirectory() string { func homeDirectory() string {
@ -46,46 +35,6 @@ func projectPath(path string) string {
return filepath.FromSlash(gopath + "/src/github.com/jesseduffield/lazygit/" + path) return filepath.FromSlash(gopath + "/src/github.com/jesseduffield/lazygit/" + path)
} }
func devLog(objects ...interface{}) {
localLog("development.log", objects...)
}
func objectLog(object interface{}) {
if !*debuggingFlag {
return
}
str := spew.Sdump(object)
localLog("development.log", str)
}
func commandLog(objects ...interface{}) {
localLog("commands.log", objects...)
}
func localLog(path string, objects ...interface{}) {
if !*debuggingFlag {
return
}
f, err := os.OpenFile(projectPath(path), os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0644)
if err != nil {
panic(err.Error())
}
defer f.Close()
log.SetOutput(f)
for _, object := range objects {
log.Println(fmt.Sprint(object))
}
}
func navigateToRepoRootDirectory() {
_, err := os.Stat(".git")
for os.IsNotExist(err) {
devLog("going up a directory to find the root")
os.Chdir("..")
_, err = os.Stat(".git")
}
}
// when building the binary, `version` is set as a compile-time variable, along // when building the binary, `version` is set as a compile-time variable, along
// with `date` and `commit`. If this program has been opened directly via go, // with `date` and `commit`. If this program has been opened directly via go,
// we will populate the `version` with VERSION in the lazygit root directory // we will populate the `version` with VERSION in the lazygit root directory
@ -98,21 +47,7 @@ func fallbackVersion() string {
return string(byteVersion) return string(byteVersion)
} }
func setupWorktree() {
var err error
r, err = git.PlainOpen(".")
if err != nil {
panic(err)
}
w, err = r.Worktree()
if err != nil {
panic(err)
}
}
func main() { func main() {
devLog("\n\n\n\n\n\n\n\n\n\n")
flag.Parse() flag.Parse()
if version == "unversioned" { if version == "unversioned" {
version = fallbackVersion() version = fallbackVersion()
@ -121,18 +56,15 @@ func main() {
fmt.Printf("commit=%s, build date=%s, version=%s\n", commit, date, version) fmt.Printf("commit=%s, build date=%s, version=%s\n", commit, date, version)
os.Exit(0) os.Exit(0)
} }
verifyInGitRepo() appConfig := &config.AppConfig{
navigateToRepoRootDirectory() Name: "lazygit",
setupWorktree() Version: version,
for { Commit: commit,
if err := run(); err != nil { BuildDate: date,
if err == gocui.ErrQuit { Debug: *debuggingFlag,
break
} else if err == ErrSubprocess {
subprocess.Run()
} else {
log.Panicln(err)
}
}
} }
app, err := app.NewApp(appConfig)
app.Log.Info(err)
app.GitCommand.SetupGit()
app.Gui.RunWithSubprocesses()
} }

263
merge_panel.go
View File

@ -1,263 +0,0 @@
// though this panel is called the merge panel, it's really going to use the main panel. This may change in the future
package main
import (
"bufio"
"bytes"
"io/ioutil"
"math"
"os"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
)
func findConflicts(content string) ([]conflict, error) {
conflicts := make([]conflict, 0)
var newConflict conflict
for i, line := range splitLines(content) {
if line == "<<<<<<< HEAD" || line == "<<<<<<< MERGE_HEAD" || line == "<<<<<<< Updated upstream" {
newConflict = conflict{start: i}
} else if line == "=======" {
newConflict.middle = i
} else if strings.HasPrefix(line, ">>>>>>> ") {
newConflict.end = i
conflicts = append(conflicts, newConflict)
}
}
return conflicts, nil
}
func shiftConflict(conflicts []conflict) (conflict, []conflict) {
return conflicts[0], conflicts[1:]
}
func shouldHighlightLine(index int, conflict conflict, top bool) bool {
return (index >= conflict.start && index <= conflict.middle && top) || (index >= conflict.middle && index <= conflict.end && !top)
}
func coloredConflictFile(content string, conflicts []conflict, conflictIndex int, conflictTop, hasFocus bool) (string, error) {
if len(conflicts) == 0 {
return content, nil
}
conflict, remainingConflicts := shiftConflict(conflicts)
var outputBuffer bytes.Buffer
for i, line := range splitLines(content) {
colourAttr := color.FgWhite
if i == conflict.start || i == conflict.middle || i == conflict.end {
colourAttr = color.FgRed
}
colour := color.New(colourAttr)
if hasFocus && conflictIndex < len(conflicts) && conflicts[conflictIndex] == conflict && shouldHighlightLine(i, conflict, conflictTop) {
colour.Add(color.Bold)
}
if i == conflict.end && len(remainingConflicts) > 0 {
conflict, remainingConflicts = shiftConflict(remainingConflicts)
}
outputBuffer.WriteString(coloredStringDirect(line, colour) + "\n")
}
return outputBuffer.String(), nil
}
func handleSelectTop(g *gocui.Gui, v *gocui.View) error {
state.ConflictTop = true
return refreshMergePanel(g)
}
func handleSelectBottom(g *gocui.Gui, v *gocui.View) error {
state.ConflictTop = false
return refreshMergePanel(g)
}
func handleSelectNextConflict(g *gocui.Gui, v *gocui.View) error {
if state.ConflictIndex >= len(state.Conflicts)-1 {
return nil
}
state.ConflictIndex++
return refreshMergePanel(g)
}
func handleSelectPrevConflict(g *gocui.Gui, v *gocui.View) error {
if state.ConflictIndex <= 0 {
return nil
}
state.ConflictIndex--
return refreshMergePanel(g)
}
func isIndexToDelete(i int, conflict conflict, pick string) bool {
return i == conflict.middle ||
i == conflict.start ||
i == conflict.end ||
pick != "both" &&
(pick == "bottom" && i > conflict.start && i < conflict.middle) ||
(pick == "top" && i > conflict.middle && i < conflict.end)
}
func resolveConflict(g *gocui.Gui, conflict conflict, pick string) error {
gitFile, err := getSelectedFile(g)
if err != nil {
return err
}
file, err := os.Open(gitFile.Name)
if err != nil {
return err
}
defer file.Close()
reader := bufio.NewReader(file)
output := ""
for i := 0; true; i++ {
line, err := reader.ReadString('\n')
if err != nil {
break
}
if !isIndexToDelete(i, conflict, pick) {
output += line
}
}
devLog(output)
return ioutil.WriteFile(gitFile.Name, []byte(output), 0644)
}
func pushFileSnapshot(g *gocui.Gui) error {
gitFile, err := getSelectedFile(g)
if err != nil {
return err
}
content, err := catFile(gitFile.Name)
if err != nil {
return err
}
state.EditHistory.Push(content)
return nil
}
func handlePopFileSnapshot(g *gocui.Gui, v *gocui.View) error {
if state.EditHistory.Len() == 0 {
return nil
}
prevContent := state.EditHistory.Pop().(string)
gitFile, err := getSelectedFile(g)
if err != nil {
return err
}
ioutil.WriteFile(gitFile.Name, []byte(prevContent), 0644)
return refreshMergePanel(g)
}
func handlePickHunk(g *gocui.Gui, v *gocui.View) error {
conflict := state.Conflicts[state.ConflictIndex]
pushFileSnapshot(g)
pick := "bottom"
if state.ConflictTop {
pick = "top"
}
err := resolveConflict(g, conflict, pick)
if err != nil {
panic(err)
}
refreshMergePanel(g)
return nil
}
func handlePickBothHunks(g *gocui.Gui, v *gocui.View) error {
conflict := state.Conflicts[state.ConflictIndex]
pushFileSnapshot(g)
err := resolveConflict(g, conflict, "both")
if err != nil {
panic(err)
}
return refreshMergePanel(g)
}
func currentViewName(g *gocui.Gui) string {
currentView := g.CurrentView()
return currentView.Name()
}
func refreshMergePanel(g *gocui.Gui) error {
cat, err := catSelectedFile(g)
if err != nil {
return err
}
state.Conflicts, err = findConflicts(cat)
if err != nil {
return err
}
if len(state.Conflicts) == 0 {
return handleCompleteMerge(g)
} else if state.ConflictIndex > len(state.Conflicts)-1 {
state.ConflictIndex = len(state.Conflicts) - 1
}
hasFocus := currentViewName(g) == "main"
if hasFocus {
renderMergeOptions(g)
}
content, err := coloredConflictFile(cat, state.Conflicts, state.ConflictIndex, state.ConflictTop, hasFocus)
if err != nil {
return err
}
if err := scrollToConflict(g); err != nil {
return err
}
return renderString(g, "main", content)
}
func scrollToConflict(g *gocui.Gui) error {
mainView, err := g.View("main")
if err != nil {
return err
}
if len(state.Conflicts) == 0 {
return nil
}
conflict := state.Conflicts[state.ConflictIndex]
ox, _ := mainView.Origin()
_, height := mainView.Size()
conflictMiddle := (conflict.end + conflict.start) / 2
newOriginY := int(math.Max(0, float64(conflictMiddle-(height/2))))
return mainView.SetOrigin(ox, newOriginY)
}
func switchToMerging(g *gocui.Gui) error {
state.ConflictIndex = 0
state.ConflictTop = true
_, err := g.SetCurrentView("main")
if err != nil {
return err
}
return refreshMergePanel(g)
}
func renderMergeOptions(g *gocui.Gui) error {
return renderOptionsMap(g, map[string]string{
"↑ ↓": "select hunk",
"← →": "navigate conflicts",
"space": "pick hunk",
"b": "pick both hunks",
"z": "undo",
})
}
func handleEscapeMerge(g *gocui.Gui, v *gocui.View) error {
filesView, err := g.View("files")
if err != nil {
return err
}
refreshFiles(g)
return switchFocus(g, v, filesView)
}
func handleCompleteMerge(g *gocui.Gui) error {
filesView, err := g.View("files")
if err != nil {
return err
}
stageSelectedFile(g)
refreshFiles(g)
return switchFocus(g, nil, filesView)
}

71
pkg/app/app.go Normal file
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@ -0,0 +1,71 @@
package app
import (
"io"
"io/ioutil"
"os"
"github.com/Sirupsen/logrus"
"github.com/jesseduffield/lazygit/pkg/commands"
"github.com/jesseduffield/lazygit/pkg/config"
"github.com/jesseduffield/lazygit/pkg/gui"
)
// App struct
type App struct {
closers []io.Closer
Config config.AppConfigurer
Log *logrus.Logger
OSCommand *commands.OSCommand
GitCommand *commands.GitCommand
Gui *gui.Gui
}
func newLogger(config config.AppConfigurer) *logrus.Logger {
log := logrus.New()
if !config.GetDebug() {
log.Out = ioutil.Discard
return log
}
file, err := os.OpenFile("development.log", os.O_CREATE|os.O_WRONLY, 0666)
if err != nil {
panic("unable to log to file") // TODO: don't panic (also, remove this call to the `panic` function)
}
log.Out = file
return log
}
// NewApp retruns a new applications
func NewApp(config config.AppConfigurer) (*App, error) {
app := &App{
closers: []io.Closer{},
Config: config,
}
var err error
app.Log = newLogger(config)
app.OSCommand, err = commands.NewOSCommand(app.Log)
if err != nil {
return nil, err
}
app.GitCommand, err = commands.NewGitCommand(app.Log, app.OSCommand)
if err != nil {
return nil, err
}
app.Gui, err = gui.NewGui(app.Log, app.GitCommand, app.OSCommand, config.GetVersion())
if err != nil {
return nil, err
}
return app, nil
}
// Close closes any resources
func (app *App) Close() error {
for _, closer := range app.closers {
err := closer.Close()
if err != nil {
return err
}
}
return nil
}

12
branch.go → pkg/commands/branch.go
View File

@ -1,22 +1,26 @@
package main package commands
import ( import (
"strings" "strings"
"github.com/fatih/color" "github.com/fatih/color"
"github.com/jesseduffield/lazygit/pkg/utils"
) )
// Branch : A git branch // Branch : A git branch
// duplicating this for now
type Branch struct { type Branch struct {
Name string Name string
Recency string Recency string
} }
func (b *Branch) getDisplayString() string { // GetDisplayString returns the dispaly string of branch
return withPadding(b.Recency, 4) + coloredString(b.Name, b.getColor()) func (b *Branch) GetDisplayString() string {
return utils.WithPadding(b.Recency, 4) + utils.ColoredString(b.Name, b.GetColor())
} }
func (b *Branch) getColor() color.Attribute { // GetColor branch color
func (b *Branch) GetColor() color.Attribute {
switch b.getType() { switch b.getType() {
case "feature": case "feature":
return color.FgGreen return color.FgGreen

497
pkg/commands/git.go Normal file
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@ -0,0 +1,497 @@
package commands
import (
"errors"
"fmt"
"os"
"os/exec"
"strings"
"github.com/Sirupsen/logrus"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/utils"
gitconfig "github.com/tcnksm/go-gitconfig"
gogit "gopkg.in/src-d/go-git.v4"
)
// GitCommand is our main git interface
type GitCommand struct {
Log *logrus.Logger
OSCommand *OSCommand
Worktree *gogit.Worktree
Repo *gogit.Repository
}
// NewGitCommand it runs git commands
func NewGitCommand(log *logrus.Logger, osCommand *OSCommand) (*GitCommand, error) {
gitCommand := &GitCommand{
Log: log,
OSCommand: osCommand,
}
return gitCommand, nil
}
// SetupGit sets git repo up
func (c *GitCommand) SetupGit() {
c.verifyInGitRepo()
c.navigateToRepoRootDirectory()
c.setupWorktree()
}
// GetStashEntries stash entryies
func (c *GitCommand) GetStashEntries() []StashEntry {
stashEntries := make([]StashEntry, 0)
rawString, _ := c.OSCommand.RunDirectCommand("git stash list --pretty='%gs'")
for i, line := range utils.SplitLines(rawString) {
stashEntries = append(stashEntries, stashEntryFromLine(line, i))
}
return stashEntries
}
func stashEntryFromLine(line string, index int) StashEntry {
return StashEntry{
Name: line,
Index: index,
DisplayString: line,
}
}
// GetStashEntryDiff stash diff
func (c *GitCommand) GetStashEntryDiff(index int) (string, error) {
return c.OSCommand.RunCommand("git stash show -p --color stash@{" + fmt.Sprint(index) + "}")
}
func includes(array []string, str string) bool {
for _, arrayStr := range array {
if arrayStr == str {
return true
}
}
return false
}
// GetStatusFiles git status files
func (c *GitCommand) GetStatusFiles() []File {
statusOutput, _ := c.GitStatus()
statusStrings := utils.SplitLines(statusOutput)
files := make([]File, 0)
for _, statusString := range statusStrings {
change := statusString[0:2]
stagedChange := change[0:1]
unstagedChange := statusString[1:2]
filename := statusString[3:]
tracked := !includes([]string{"??", "A "}, change)
file := File{
Name: filename,
DisplayString: statusString,
HasStagedChanges: !includes([]string{" ", "U", "?"}, stagedChange),
HasUnstagedChanges: unstagedChange != " ",
Tracked: tracked,
Deleted: unstagedChange == "D" || stagedChange == "D",
HasMergeConflicts: change == "UU",
}
files = append(files, file)
}
c.Log.Info(files) // TODO: use a dumper-esque log here
return files
}
// StashDo modify stash
func (c *GitCommand) StashDo(index int, method string) (string, error) {
return c.OSCommand.RunCommand("git stash " + method + " stash@{" + fmt.Sprint(index) + "}")
}
// StashSave save stash
func (c *GitCommand) StashSave(message string) (string, error) {
output, err := c.OSCommand.RunCommand("git stash save \"" + message + "\"")
if err != nil {
return output, err
}
// if there are no local changes to save, the exit code is 0, but we want
// to raise an error
if output == "No local changes to save\n" {
return output, errors.New(output)
}
return output, nil
}
// MergeStatusFiles merge status files
func (c *GitCommand) MergeStatusFiles(oldFiles, newFiles []File) []File {
if len(oldFiles) == 0 {
return newFiles
}
appendedIndexes := make([]int, 0)
// retain position of files we already could see
result := make([]File, 0)
for _, oldFile := range oldFiles {
for newIndex, newFile := range newFiles {
if oldFile.Name == newFile.Name {
result = append(result, newFile)
appendedIndexes = append(appendedIndexes, newIndex)
break
}
}
}
// append any new files to the end
for index, newFile := range newFiles {
if !includesInt(appendedIndexes, index) {
result = append(result, newFile)
}
}
return result
}
func (c *GitCommand) verifyInGitRepo() {
if output, err := c.OSCommand.RunCommand("git status"); err != nil {
fmt.Println(output)
os.Exit(1)
}
}
// GetBranchName branch name
func (c *GitCommand) GetBranchName() (string, error) {
return c.OSCommand.RunDirectCommand("git symbolic-ref --short HEAD")
}
func (c *GitCommand) navigateToRepoRootDirectory() {
_, err := os.Stat(".git")
for os.IsNotExist(err) {
c.Log.Debug("going up a directory to find the root")
os.Chdir("..")
_, err = os.Stat(".git")
}
}
func (c *GitCommand) setupWorktree() {
r, err := gogit.PlainOpen(".")
if err != nil {
panic(err)
}
c.Repo = r
w, err := r.Worktree()
if err != nil {
panic(err)
}
c.Worktree = w
}
// ResetHard does the equivalent of `git reset --hard HEAD`
func (c *GitCommand) ResetHard() error {
return c.Worktree.Reset(&gogit.ResetOptions{Mode: gogit.HardReset})
}
// UpstreamDifferenceCount checks how many pushables/pullables there are for the
// current branch
func (c *GitCommand) UpstreamDifferenceCount() (string, string) {
pushableCount, err := c.OSCommand.RunDirectCommand("git rev-list @{u}..head --count")
if err != nil {
return "?", "?"
}
pullableCount, err := c.OSCommand.RunDirectCommand("git rev-list head..@{u} --count")
if err != nil {
return "?", "?"
}
return strings.TrimSpace(pushableCount), strings.TrimSpace(pullableCount)
}
// GetCommitsToPush Returns the sha's of the commits that have not yet been pushed
// to the remote branch of the current branch
func (c *GitCommand) GetCommitsToPush() []string {
pushables, err := c.OSCommand.RunDirectCommand("git rev-list @{u}..head --abbrev-commit")
if err != nil {
return make([]string, 0)
}
return utils.SplitLines(pushables)
}
// RenameCommit renames the topmost commit with the given name
func (c *GitCommand) RenameCommit(name string) (string, error) {
return c.OSCommand.RunDirectCommand("git commit --allow-empty --amend -m \"" + name + "\"")
}
// Fetch fetch git repo
func (c *GitCommand) Fetch() (string, error) {
return c.OSCommand.RunDirectCommand("git fetch")
}
// ResetToCommit reset to commit
func (c *GitCommand) ResetToCommit(sha string) (string, error) {
return c.OSCommand.RunDirectCommand("git reset " + sha)
}
// NewBranch create new branch
func (c *GitCommand) NewBranch(name string) (string, error) {
return c.OSCommand.RunDirectCommand("git checkout -b " + name)
}
// DeleteBranch delete branch
func (c *GitCommand) DeleteBranch(branch string) (string, error) {
return c.OSCommand.RunCommand("git branch -d " + branch)
}
// ListStash list stash
func (c *GitCommand) ListStash() (string, error) {
return c.OSCommand.RunDirectCommand("git stash list")
}
// Merge merge
func (c *GitCommand) Merge(branchName string) (string, error) {
return c.OSCommand.RunDirectCommand("git merge --no-edit " + branchName)
}
// AbortMerge abort merge
func (c *GitCommand) AbortMerge() (string, error) {
return c.OSCommand.RunDirectCommand("git merge --abort")
}
// UsingGpg tells us whether the user has gpg enabled so that we can know
// whether we need to run a subprocess to allow them to enter their password
func (c *GitCommand) UsingGpg() bool {
gpgsign, _ := gitconfig.Global("commit.gpgsign")
if gpgsign == "" {
gpgsign, _ = gitconfig.Local("commit.gpgsign")
}
if gpgsign == "" {
return false
}
return true
}
// Commit commit to git
func (c *GitCommand) Commit(g *gocui.Gui, message string) (*exec.Cmd, error) {
command := "git commit -m \"" + message + "\""
if c.UsingGpg() {
return c.OSCommand.PrepareSubProcess(c.OSCommand.Platform.shell, c.OSCommand.Platform.shellArg, command)
}
// TODO: make these runDirectCommand functions just return an error
_, err := c.OSCommand.RunDirectCommand(command)
return nil, err
}
// Pull pull from repo
func (c *GitCommand) Pull() (string, error) {
return c.OSCommand.RunCommand("git pull --no-edit")
}
// Push push to a branch
func (c *GitCommand) Push(branchName string) (string, error) {
return c.OSCommand.RunDirectCommand("git push -u origin " + branchName)
}
// SquashPreviousTwoCommits squashes a commit down to the one below it
// retaining the message of the higher commit
func (c *GitCommand) SquashPreviousTwoCommits(message string) (string, error) {
return c.OSCommand.RunDirectCommand("git reset --soft HEAD^ && git commit --amend -m \"" + message + "\"")
}
// SquashFixupCommit squashes a 'FIXUP' commit into the commit beneath it,
// retaining the commit message of the lower commit
func (c *GitCommand) SquashFixupCommit(branchName string, shaValue string) (string, error) {
var err error
commands := []string{
"git checkout -q " + shaValue,
"git reset --soft " + shaValue + "^",
"git commit --amend -C " + shaValue + "^",
"git rebase --onto HEAD " + shaValue + " " + branchName,
}
ret := ""
for _, command := range commands {
c.Log.Info(command)
output, err := c.OSCommand.RunDirectCommand(command)
ret += output
if err != nil {
c.Log.Info(ret)
break
}
}
if err != nil {
// We are already in an error state here so we're just going to append
// the output of these commands
output, _ := c.OSCommand.RunDirectCommand("git branch -d " + shaValue)
ret += output
output, _ = c.OSCommand.RunDirectCommand("git checkout " + branchName)
ret += output
}
return ret, err
}
// CatFile obtain the contents of a file
func (c *GitCommand) CatFile(file string) (string, error) {
return c.OSCommand.RunDirectCommand("cat " + file)
}
// StageFile stages a file
func (c *GitCommand) StageFile(file string) error {
_, err := c.OSCommand.RunCommand("git add " + file)
return err
}
// UnStageFile unstages a file
func (c *GitCommand) UnStageFile(file string, tracked bool) error {
var command string
if tracked {
command = "git reset HEAD "
} else {
command = "git rm --cached "
}
_, err := c.OSCommand.RunCommand(command + file)
return err
}
// GitStatus returns the plaintext short status of the repo
func (c *GitCommand) GitStatus() (string, error) {
return c.OSCommand.RunCommand("git status --untracked-files=all --short")
}
// IsInMergeState states whether we are still mid-merge
func (c *GitCommand) IsInMergeState() (bool, error) {
output, err := c.OSCommand.RunCommand("git status --untracked-files=all")
if err != nil {
return false, err
}
return strings.Contains(output, "conclude merge") || strings.Contains(output, "unmerged paths"), nil
}
// RemoveFile directly
func (c *GitCommand) RemoveFile(file File) error {
// if the file isn't tracked, we assume you want to delete it
if !file.Tracked {
_, err := c.OSCommand.RunCommand("rm -rf ./" + file.Name)
return err
}
// if the file is tracked, we assume you want to just check it out
_, err := c.OSCommand.RunCommand("git checkout " + file.Name)
return err
}
// Checkout checks out a branch, with --force if you set the force arg to true
func (c *GitCommand) Checkout(branch string, force bool) (string, error) {
forceArg := ""
if force {
forceArg = "--force "
}
return c.OSCommand.RunCommand("git checkout " + forceArg + branch)
}
// AddPatch prepares a subprocess for adding a patch by patch
// this will eventually be swapped out for a better solution inside the Gui
func (c *GitCommand) AddPatch(filename string) (*exec.Cmd, error) {
return c.OSCommand.PrepareSubProcess("git", "add", "--patch", filename)
}
// PrepareCommitSubProcess prepares a subprocess for `git commit`
func (c *GitCommand) PrepareCommitSubProcess() (*exec.Cmd, error) {
return c.OSCommand.PrepareSubProcess("git", "commit")
}
// GetBranchGraph gets the color-formatted graph of the log for the given branch
// Currently it limits the result to 100 commits, but when we get async stuff
// working we can do lazy loading
func (c *GitCommand) GetBranchGraph(branchName string) (string, error) {
return c.OSCommand.RunCommand("git log --graph --color --abbrev-commit --decorate --date=relative --pretty=medium -100 " + branchName)
}
// Map (from https://gobyexample.com/collection-functions)
func Map(vs []string, f func(string) string) []string {
vsm := make([]string, len(vs))
for i, v := range vs {
vsm[i] = f(v)
}
return vsm
}
func includesString(list []string, a string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
// not sure how to genericise this because []interface{} doesn't accept e.g.
// []int arguments
func includesInt(list []int, a int) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
// GetCommits obtains the commits of the current branch
func (c *GitCommand) GetCommits() []Commit {
pushables := c.GetCommitsToPush()
log := c.GetLog()
commits := make([]Commit, 0)
// now we can split it up and turn it into commits
lines := utils.SplitLines(log)
for _, line := range lines {
splitLine := strings.Split(line, " ")
sha := splitLine[0]
pushed := includesString(pushables, sha)
commits = append(commits, Commit{
Sha: sha,
Name: strings.Join(splitLine[1:], " "),
Pushed: pushed,
DisplayString: strings.Join(splitLine, " "),
})
}
return commits
}
// GetLog gets the git log (currently limited to 30 commits for performance
// until we work out lazy loading
func (c *GitCommand) GetLog() string {
// currently limiting to 30 for performance reasons
// TODO: add lazyloading when you scroll down
result, err := c.OSCommand.RunDirectCommand("git log --oneline -30")
if err != nil {
// assume if there is an error there are no commits yet for this branch
return ""
}
return result
}
// Ignore adds a file to the gitignore for the repo
func (c *GitCommand) Ignore(filename string) {
if _, err := c.OSCommand.RunDirectCommand("echo '" + filename + "' >> .gitignore"); err != nil {
panic(err)
}
}
// Show shows the diff of a commit
func (c *GitCommand) Show(sha string) string {
result, err := c.OSCommand.RunDirectCommand("git show --color " + sha)
if err != nil {
panic(err)
}
return result
}
// Diff returns the diff of a file
func (c *GitCommand) Diff(file File) string {
cachedArg := ""
if file.HasStagedChanges && !file.HasUnstagedChanges {
cachedArg = "--cached "
}
deletedArg := ""
if file.Deleted {
deletedArg = "-- "
}
trackedArg := ""
if !file.Tracked && !file.HasStagedChanges {
trackedArg = "--no-index /dev/null "
}
command := "git diff --color " + cachedArg + deletedArg + trackedArg + file.Name
// for now we assume an error means the file was deleted
s, _ := c.OSCommand.RunCommand(command)
return s
}

36
pkg/commands/git_structs.go Normal file
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@ -0,0 +1,36 @@
package commands
// File : A staged/unstaged file
// TODO: decide whether to give all of these the Git prefix
type File struct {
Name string
HasStagedChanges bool
HasUnstagedChanges bool
Tracked bool
Deleted bool
HasMergeConflicts bool
DisplayString string
}
// Commit : A git commit
type Commit struct {
Sha string
Name string
Pushed bool
DisplayString string
}
// StashEntry : A git stash entry
type StashEntry struct {
Index int
Name string
DisplayString string
}
// Conflict : A git conflict with a start middle and end corresponding to line
// numbers in the file where the conflict bars appear
type Conflict struct {
Start int
Middle int
End int
}

157
pkg/commands/os.go Normal file
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@ -0,0 +1,157 @@
package commands
import (
"errors"
"os"
"os/exec"
"runtime"
"strings"
"github.com/Sirupsen/logrus"
gitconfig "github.com/tcnksm/go-gitconfig"
)
var (
// ErrNoOpenCommand : When we don't know which command to use to open a file
ErrNoOpenCommand = errors.New("Unsure what command to use to open this file")
// ErrNoEditorDefined : When we can't find an editor to edit a file
ErrNoEditorDefined = errors.New("No editor defined in $VISUAL, $EDITOR, or git config")
)
// Platform stores the os state
type platform struct {
os string
shell string
shellArg string
escapedQuote string
}
// OSCommand holds all the os commands
type OSCommand struct {
Log *logrus.Logger
Platform platform
}
// NewOSCommand os command runner
func NewOSCommand(log *logrus.Logger) (*OSCommand, error) {
osCommand := &OSCommand{
Log: log,
Platform: getPlatform(),
}
return osCommand, nil
}
// RunCommand wrapper around commands
func (c *OSCommand) RunCommand(command string) (string, error) {
c.Log.WithField("command", command).Info("RunCommand")
splitCmd := strings.Split(command, " ")
cmdOut, err := exec.Command(splitCmd[0], splitCmd[1:]...).CombinedOutput()
return sanitisedCommandOutput(cmdOut, err)
}
// RunDirectCommand wrapper around direct commands
func (c *OSCommand) RunDirectCommand(command string) (string, error) {
c.Log.WithField("command", command).Info("RunDirectCommand")
cmdOut, err := exec.
Command(c.Platform.shell, c.Platform.shellArg, command).
CombinedOutput()
return sanitisedCommandOutput(cmdOut, err)
}
func sanitisedCommandOutput(output []byte, err error) (string, error) {
outputString := string(output)
if outputString == "" && err != nil {
return err.Error(), err
}
return outputString, err
}
func getPlatform() platform {
switch runtime.GOOS {
case "windows":
return platform{
os: "windows",
shell: "cmd",
shellArg: "/c",
escapedQuote: "\\\"",
}
default:
return platform{
os: runtime.GOOS,
shell: "bash",
shellArg: "-c",
escapedQuote: "\"",
}
}
}
// GetOpenCommand get open command
func (c *OSCommand) GetOpenCommand() (string, string, error) {
//NextStep open equivalents: xdg-open (linux), cygstart (cygwin), open (OSX)
trailMap := map[string]string{
"xdg-open": " &>/dev/null &",
"cygstart": "",
"open": "",
}
for name, trail := range trailMap {
if out, _ := c.RunCommand("which " + name); out != "exit status 1" {
return name, trail, nil
}
}
return "", "", ErrNoOpenCommand
}
// VsCodeOpenFile opens the file in code, with the -r flag to open in the
// current window
// each of these open files needs to have the same function signature because
// they're being passed as arguments into another function,
// but only editFile actually returns a *exec.Cmd
func (c *OSCommand) VsCodeOpenFile(filename string) (*exec.Cmd, error) {
_, err := c.RunCommand("code -r " + filename)
return nil, err
}
// SublimeOpenFile opens the filein sublime
// may be deprecated in the future
func (c *OSCommand) SublimeOpenFile(filename string) (*exec.Cmd, error) {
_, err := c.RunCommand("subl " + filename)
return nil, err
}
// OpenFile opens a file with the given
func (c *OSCommand) OpenFile(filename string) (*exec.Cmd, error) {
cmdName, cmdTrail, err := c.GetOpenCommand()
if err != nil {
return nil, err
}
_, err = c.RunCommand(cmdName + " " + filename + cmdTrail)
return nil, err
}
// EditFile opens a file in a subprocess using whatever editor is available,
// falling back to core.editor, VISUAL, EDITOR, then vi
func (c *OSCommand) EditFile(filename string) (*exec.Cmd, error) {
editor, _ := gitconfig.Global("core.editor")
if editor == "" {
editor = os.Getenv("VISUAL")
}
if editor == "" {
editor = os.Getenv("EDITOR")
}
if editor == "" {
if _, err := c.RunCommand("which vi"); err == nil {
editor = "vi"
}
}
if editor == "" {
return nil, ErrNoEditorDefined
}
return c.PrepareSubProcess(editor, filename)
}
// PrepareSubProcess iniPrepareSubProcessrocess then tells the Gui to switch to it
func (c *OSCommand) PrepareSubProcess(cmdName string, commandArgs ...string) (*exec.Cmd, error) {
subprocess := exec.Command(cmdName, commandArgs...)
return subprocess, nil
}

45
pkg/config/app_config.go Normal file
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@ -0,0 +1,45 @@
package config
// AppConfig contains the base configuration fields required for lazygit.
type AppConfig struct {
Debug bool `long:"debug" env:"DEBUG" default:"false"`
Version string `long:"version" env:"VERSION" default:"unversioned"`
Commit string `long:"commit" env:"COMMIT"`
BuildDate string `long:"build-date" env:"BUILD_DATE"`
Name string `long:"name" env:"NAME" default:"lazygit"`
}
// AppConfigurer interface allows individual app config structs to inherit Fields
// from AppConfig and still be used by lazygit.
type AppConfigurer interface {
GetDebug() bool
GetVersion() string
GetCommit() string
GetBuildDate() string
GetName() string
}
// GetDebug returns debug flag
func (c *AppConfig) GetDebug() bool {
return c.Debug
}
// GetVersion returns debug flag
func (c *AppConfig) GetVersion() string {
return c.Version
}
// GetCommit returns debug flag
func (c *AppConfig) GetCommit() string {
return c.Commit
}
// GetBuildDate returns debug flag
func (c *AppConfig) GetBuildDate() string {
return c.BuildDate
}
// GetName returns debug flag
func (c *AppConfig) GetName() string {
return c.Name
}

71
branch_list_builder.go → pkg/git/branch_list_builder.go
View File

@ -1,9 +1,14 @@
package main package git
import ( import (
"regexp" "regexp"
"strings" "strings"
"github.com/jesseduffield/lazygit/pkg/commands"
"github.com/jesseduffield/lazygit/pkg/utils"
"github.com/Sirupsen/logrus"
"gopkg.in/src-d/go-git.v4/plumbing" "gopkg.in/src-d/go-git.v4/plumbing"
) )
@ -15,53 +20,61 @@ import (
// our safe branches, then add the remaining safe branches, ensuring uniqueness // our safe branches, then add the remaining safe branches, ensuring uniqueness
// along the way // along the way
type branchListBuilder struct{} // BranchListBuilder returns a list of Branch objects for the current repo
type BranchListBuilder struct {
func newBranchListBuilder() *branchListBuilder { Log *logrus.Logger
return &branchListBuilder{} GitCommand *commands.GitCommand
} }
func (b *branchListBuilder) obtainCurrentBranch() Branch { // NewBranchListBuilder builds a new branch list builder
func NewBranchListBuilder(log *logrus.Logger, gitCommand *commands.GitCommand) (*BranchListBuilder, error) {
return &BranchListBuilder{
Log: log,
GitCommand: gitCommand,
}, nil
}
func (b *BranchListBuilder) obtainCurrentBranch() commands.Branch {
// I used go-git for this, but that breaks if you've just done a git init, // I used go-git for this, but that breaks if you've just done a git init,
// even though you're on 'master' // even though you're on 'master'
branchName, _ := runDirectCommand("git symbolic-ref --short HEAD") branchName, _ := b.GitCommand.OSCommand.RunDirectCommand("git symbolic-ref --short HEAD")
return Branch{Name: strings.TrimSpace(branchName), Recency: " *"} return commands.Branch{Name: strings.TrimSpace(branchName), Recency: " *"}
} }
func (*branchListBuilder) obtainReflogBranches() []Branch { func (b *BranchListBuilder) obtainReflogBranches() []commands.Branch {
branches := make([]Branch, 0) branches := make([]commands.Branch, 0)
rawString, err := runDirectCommand("git reflog -n100 --pretty='%cr|%gs' --grep-reflog='checkout: moving' HEAD") rawString, err := b.GitCommand.OSCommand.RunDirectCommand("git reflog -n100 --pretty='%cr|%gs' --grep-reflog='checkout: moving' HEAD")
if err != nil { if err != nil {
return branches return branches
} }
branchLines := splitLines(rawString) branchLines := utils.SplitLines(rawString)
for _, line := range branchLines { for _, line := range branchLines {
timeNumber, timeUnit, branchName := branchInfoFromLine(line) timeNumber, timeUnit, branchName := branchInfoFromLine(line)
timeUnit = abbreviatedTimeUnit(timeUnit) timeUnit = abbreviatedTimeUnit(timeUnit)
branch := Branch{Name: branchName, Recency: timeNumber + timeUnit} branch := commands.Branch{Name: branchName, Recency: timeNumber + timeUnit}
branches = append(branches, branch) branches = append(branches, branch)
} }
return branches return branches
} }
func (b *branchListBuilder) obtainSafeBranches() []Branch { func (b *BranchListBuilder) obtainSafeBranches() []commands.Branch {
branches := make([]Branch, 0) branches := make([]commands.Branch, 0)
bIter, err := r.Branches() bIter, err := b.GitCommand.Repo.Branches()
if err != nil { if err != nil {
panic(err) panic(err)
} }
err = bIter.ForEach(func(b *plumbing.Reference) error { err = bIter.ForEach(func(b *plumbing.Reference) error {
name := b.Name().Short() name := b.Name().Short()
branches = append(branches, Branch{Name: name}) branches = append(branches, commands.Branch{Name: name})
return nil return nil
}) })
return branches return branches
} }
func (b *branchListBuilder) appendNewBranches(finalBranches, newBranches, existingBranches []Branch, included bool) []Branch { func (b *BranchListBuilder) appendNewBranches(finalBranches, newBranches, existingBranches []commands.Branch, included bool) []commands.Branch {
for _, newBranch := range newBranches { for _, newBranch := range newBranches {
if included == branchIncluded(newBranch.Name, existingBranches) { if included == branchIncluded(newBranch.Name, existingBranches) {
finalBranches = append(finalBranches, newBranch) finalBranches = append(finalBranches, newBranch)
@ -70,7 +83,7 @@ func (b *branchListBuilder) appendNewBranches(finalBranches, newBranches, existi
return finalBranches return finalBranches
} }
func sanitisedReflogName(reflogBranch Branch, safeBranches []Branch) string { func sanitisedReflogName(reflogBranch commands.Branch, safeBranches []commands.Branch) string {
for _, safeBranch := range safeBranches { for _, safeBranch := range safeBranches {
if strings.ToLower(safeBranch.Name) == strings.ToLower(reflogBranch.Name) { if strings.ToLower(safeBranch.Name) == strings.ToLower(reflogBranch.Name) {
return safeBranch.Name return safeBranch.Name
@ -79,15 +92,16 @@ func sanitisedReflogName(reflogBranch Branch, safeBranches []Branch) string {
return reflogBranch.Name return reflogBranch.Name
} }
func (b *branchListBuilder) build() []Branch { // Build the list of branches for the current repo
branches := make([]Branch, 0) func (b *BranchListBuilder) Build() []commands.Branch {
branches := make([]commands.Branch, 0)
head := b.obtainCurrentBranch() head := b.obtainCurrentBranch()
safeBranches := b.obtainSafeBranches() safeBranches := b.obtainSafeBranches()
if len(safeBranches) == 0 { if len(safeBranches) == 0 {
return append(branches, head) return append(branches, head)
} }
reflogBranches := b.obtainReflogBranches() reflogBranches := b.obtainReflogBranches()
reflogBranches = uniqueByName(append([]Branch{head}, reflogBranches...)) reflogBranches = uniqueByName(append([]commands.Branch{head}, reflogBranches...))
for i, reflogBranch := range reflogBranches { for i, reflogBranch := range reflogBranches {
reflogBranches[i].Name = sanitisedReflogName(reflogBranch, safeBranches) reflogBranches[i].Name = sanitisedReflogName(reflogBranch, safeBranches)
} }
@ -98,8 +112,17 @@ func (b *branchListBuilder) build() []Branch {
return branches return branches
} }
func uniqueByName(branches []Branch) []Branch { func branchIncluded(branchName string, branches []commands.Branch) bool {
finalBranches := make([]Branch, 0) for _, existingBranch := range branches {
if strings.ToLower(existingBranch.Name) == strings.ToLower(branchName) {
return true
}
}
return false
}
func uniqueByName(branches []commands.Branch) []commands.Branch {
finalBranches := make([]commands.Branch, 0)
for _, branch := range branches { for _, branch := range branches {
if branchIncluded(branch.Name, finalBranches) { if branchIncluded(branch.Name, finalBranches) {
continue continue

141
pkg/gui/branches_panel.go Normal file
View File

@ -0,0 +1,141 @@
package gui
import (
"fmt"
"strings"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
"github.com/jesseduffield/lazygit/pkg/git"
)
func (gui *Gui) handleBranchPress(g *gocui.Gui, v *gocui.View) error {
index := gui.getItemPosition(v)
if index == 0 {
return gui.createErrorPanel(g, "You have already checked out this branch")
}
branch := gui.getSelectedBranch(v)
if output, err := gui.GitCommand.Checkout(branch.Name, false); err != nil {
gui.createErrorPanel(g, output)
}
return gui.refreshSidePanels(g)
}
func (gui *Gui) handleForceCheckout(g *gocui.Gui, v *gocui.View) error {
branch := gui.getSelectedBranch(v)
return gui.createConfirmationPanel(g, v, "Force Checkout Branch", "Are you sure you want force checkout? You will lose all local changes", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.Checkout(branch.Name, true); err != nil {
gui.createErrorPanel(g, output)
}
return gui.refreshSidePanels(g)
}, nil)
}
func (gui *Gui) handleCheckoutByName(g *gocui.Gui, v *gocui.View) error {
gui.createPromptPanel(g, v, "Branch Name:", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.Checkout(gui.trimmedContent(v), false); err != nil {
return gui.createErrorPanel(g, output)
}
return gui.refreshSidePanels(g)
})
return nil
}
func (gui *Gui) handleNewBranch(g *gocui.Gui, v *gocui.View) error {
branch := gui.State.Branches[0]
gui.createPromptPanel(g, v, "New Branch Name (Branch is off of "+branch.Name+")", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.NewBranch(gui.trimmedContent(v)); err != nil {
return gui.createErrorPanel(g, output)
}
gui.refreshSidePanels(g)
return gui.handleBranchSelect(g, v)
})
return nil
}
func (gui *Gui) handleDeleteBranch(g *gocui.Gui, v *gocui.View) error {
checkedOutBranch := gui.State.Branches[0]
selectedBranch := gui.getSelectedBranch(v)
if checkedOutBranch.Name == selectedBranch.Name {
return gui.createErrorPanel(g, "You cannot delete the checked out branch!")
}
return gui.createConfirmationPanel(g, v, "Delete Branch", "Are you sure you want delete the branch "+selectedBranch.Name+" ?", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.DeleteBranch(selectedBranch.Name); err != nil {
return gui.createErrorPanel(g, output)
}
return gui.refreshSidePanels(g)
}, nil)
}
func (gui *Gui) handleMerge(g *gocui.Gui, v *gocui.View) error {
checkedOutBranch := gui.State.Branches[0]
selectedBranch := gui.getSelectedBranch(v)
defer gui.refreshSidePanels(g)
if checkedOutBranch.Name == selectedBranch.Name {
return gui.createErrorPanel(g, "You cannot merge a branch into itself")
}
if output, err := gui.GitCommand.Merge(selectedBranch.Name); err != nil {
return gui.createErrorPanel(g, output)
}
return nil
}
func (gui *Gui) getSelectedBranch(v *gocui.View) commands.Branch {
lineNumber := gui.getItemPosition(v)
return gui.State.Branches[lineNumber]
}
func (gui *Gui) renderBranchesOptions(g *gocui.Gui) error {
return gui.renderOptionsMap(g, map[string]string{
"space": "checkout",
"f": "force checkout",
"m": "merge",
"c": "checkout by name",
"n": "new branch",
"d": "delete branch",
"← → ↑ ↓": "navigate",
})
}
// may want to standardise how these select methods work
func (gui *Gui) handleBranchSelect(g *gocui.Gui, v *gocui.View) error {
if err := gui.renderBranchesOptions(g); err != nil {
return err
}
// This really shouldn't happen: there should always be a master branch
if len(gui.State.Branches) == 0 {
return gui.renderString(g, "main", "No branches for this repo")
}
go func() {
branch := gui.getSelectedBranch(v)
diff, err := gui.GitCommand.GetBranchGraph(branch.Name)
if err != nil && strings.HasPrefix(diff, "fatal: ambiguous argument") {
diff = "There is no tracking for this branch"
}
gui.renderString(g, "main", diff)
}()
return nil
}
// gui.refreshStatus is called at the end of this because that's when we can
// be sure there is a state.Branches array to pick the current branch from
func (gui *Gui) refreshBranches(g *gocui.Gui) error {
g.Update(func(g *gocui.Gui) error {
v, err := g.View("branches")
if err != nil {
panic(err)
}
builder, err := git.NewBranchListBuilder(gui.Log, gui.GitCommand)
if err != nil {
return err
}
gui.State.Branches = builder.Build()
v.Clear()
for _, branch := range gui.State.Branches {
fmt.Fprintln(v, branch.GetDisplayString())
}
gui.resetOrigin(v)
return gui.refreshStatus(g)
})
return nil
}

50
pkg/gui/commit_message_panel.go Normal file
View File

@ -0,0 +1,50 @@
package gui
import "github.com/jesseduffield/gocui"
func (gui *Gui) handleCommitConfirm(g *gocui.Gui, v *gocui.View) error {
message := gui.trimmedContent(v)
if message == "" {
return gui.createErrorPanel(g, "You cannot commit without a commit message")
}
sub, err := gui.GitCommand.Commit(g, message)
if err != nil {
// TODO need to find a way to send through this error
if err != ErrSubProcess {
return gui.createErrorPanel(g, err.Error())
}
}
if sub != nil {
gui.SubProcess = sub
return ErrSubProcess
}
gui.refreshFiles(g)
v.Clear()
v.SetCursor(0, 0)
g.SetViewOnBottom("commitMessage")
gui.switchFocus(g, v, gui.getFilesView(g))
return gui.refreshCommits(g)
}
func (gui *Gui) handleCommitClose(g *gocui.Gui, v *gocui.View) error {
g.SetViewOnBottom("commitMessage")
return gui.switchFocus(g, v, gui.getFilesView(g))
}
func (gui *Gui) handleNewlineCommitMessage(g *gocui.Gui, v *gocui.View) error {
// resising ahead of time so that the top line doesn't get hidden to make
// room for the cursor on the second line
x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(g, v.Buffer())
if _, err := g.SetView("commitMessage", x0, y0, x1, y1+1, 0); err != nil {
if err != gocui.ErrUnknownView {
return err
}
}
v.EditNewLine()
return nil
}
func (gui *Gui) handleCommitFocused(g *gocui.Gui, v *gocui.View) error {
return gui.renderString(g, "options", "esc: close, enter: confirm")
}

176
pkg/gui/commits_panel.go Normal file
View File

@ -0,0 +1,176 @@
package gui
import (
"errors"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
)
var (
// ErrNoCommits : When no commits are found for the branch
ErrNoCommits = errors.New("No commits for this branch")
)
func (gui *Gui) refreshCommits(g *gocui.Gui) error {
g.Update(func(*gocui.Gui) error {
gui.State.Commits = gui.GitCommand.GetCommits()
v, err := g.View("commits")
if err != nil {
panic(err)
}
v.Clear()
red := color.New(color.FgRed)
yellow := color.New(color.FgYellow)
white := color.New(color.FgWhite)
shaColor := white
for _, commit := range gui.State.Commits {
if commit.Pushed {
shaColor = red
} else {
shaColor = yellow
}
shaColor.Fprint(v, commit.Sha+" ")
white.Fprintln(v, commit.Name)
}
gui.refreshStatus(g)
if g.CurrentView().Name() == "commits" {
gui.handleCommitSelect(g, v)
}
return nil
})
return nil
}
func (gui *Gui) handleResetToCommit(g *gocui.Gui, commitView *gocui.View) error {
return gui.createConfirmationPanel(g, commitView, "Reset To Commit", "Are you sure you want to reset to this commit?", func(g *gocui.Gui, v *gocui.View) error {
commit, err := gui.getSelectedCommit(g)
if err != nil {
panic(err)
}
if output, err := gui.GitCommand.ResetToCommit(commit.Sha); err != nil {
return gui.createErrorPanel(g, output)
}
if err := gui.refreshCommits(g); err != nil {
panic(err)
}
if err := gui.refreshFiles(g); err != nil {
panic(err)
}
gui.resetOrigin(commitView)
return gui.handleCommitSelect(g, nil)
}, nil)
}
func (gui *Gui) renderCommitsOptions(g *gocui.Gui) error {
return gui.renderOptionsMap(g, map[string]string{
"s": "squash down",
"r": "rename",
"g": "reset to this commit",
"f": "fixup commit",
"← → ↑ ↓": "navigate",
})
}
func (gui *Gui) handleCommitSelect(g *gocui.Gui, v *gocui.View) error {
if err := gui.renderCommitsOptions(g); err != nil {
return err
}
commit, err := gui.getSelectedCommit(g)
if err != nil {
if err != ErrNoCommits {
return err
}
return gui.renderString(g, "main", "No commits for this branch")
}
commitText := gui.GitCommand.Show(commit.Sha)
return gui.renderString(g, "main", commitText)
}
func (gui *Gui) handleCommitSquashDown(g *gocui.Gui, v *gocui.View) error {
if gui.getItemPosition(v) != 0 {
return gui.createErrorPanel(g, "Can only squash topmost commit")
}
if len(gui.State.Commits) == 1 {
return gui.createErrorPanel(g, "You have no commits to squash with")
}
commit, err := gui.getSelectedCommit(g)
if err != nil {
return err
}
if output, err := gui.GitCommand.SquashPreviousTwoCommits(commit.Name); err != nil {
return gui.createErrorPanel(g, output)
}
if err := gui.refreshCommits(g); err != nil {
panic(err)
}
gui.refreshStatus(g)
return gui.handleCommitSelect(g, v)
}
// TODO: move to files panel
func (gui *Gui) anyUnStagedChanges(files []commands.File) bool {
for _, file := range files {
if file.Tracked && file.HasUnstagedChanges {
return true
}
}
return false
}
func (gui *Gui) handleCommitFixup(g *gocui.Gui, v *gocui.View) error {
if len(gui.State.Commits) == 1 {
return gui.createErrorPanel(g, "You have no commits to squash with")
}
if gui.anyUnStagedChanges(gui.State.Files) {
return gui.createErrorPanel(g, "Can't fixup while there are unstaged changes")
}
branch := gui.State.Branches[0]
commit, err := gui.getSelectedCommit(g)
if err != nil {
return err
}
gui.createConfirmationPanel(g, v, "Fixup", "Are you sure you want to fixup this commit? The commit beneath will be squashed up into this one", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.SquashFixupCommit(branch.Name, commit.Sha); err != nil {
return gui.createErrorPanel(g, output)
}
if err := gui.refreshCommits(g); err != nil {
panic(err)
}
return gui.refreshStatus(g)
}, nil)
return nil
}
func (gui *Gui) handleRenameCommit(g *gocui.Gui, v *gocui.View) error {
if gui.getItemPosition(v) != 0 {
return gui.createErrorPanel(g, "Can only rename topmost commit")
}
gui.createPromptPanel(g, v, "Rename Commit", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.RenameCommit(v.Buffer()); err != nil {
return gui.createErrorPanel(g, output)
}
if err := gui.refreshCommits(g); err != nil {
panic(err)
}
return gui.handleCommitSelect(g, v)
})
return nil
}
func (gui *Gui) getSelectedCommit(g *gocui.Gui) (commands.Commit, error) {
v, err := g.View("commits")
if err != nil {
panic(err)
}
if len(gui.State.Commits) == 0 {
return commands.Commit{}, ErrNoCommits
}
lineNumber := gui.getItemPosition(v)
if lineNumber > len(gui.State.Commits)-1 {
gui.Log.Info("potential error in getSelected Commit (mismatched ui and state)", gui.State.Commits, lineNumber)
return gui.State.Commits[len(gui.State.Commits)-1], nil
}
return gui.State.Commits[lineNumber], nil
}

74
confirmation_panel.go → pkg/gui/confirmation_panel.go
View File

@ -4,39 +4,40 @@
// Use of this source code is governed by a BSD-style // Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file. // license that can be found in the LICENSE file.
package main package gui
import ( import (
"strings" "strings"
"github.com/fatih/color" "github.com/fatih/color"
"github.com/jesseduffield/gocui" "github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/utils"
) )
func wrappedConfirmationFunction(function func(*gocui.Gui, *gocui.View) error) func(*gocui.Gui, *gocui.View) error { func (gui *Gui) wrappedConfirmationFunction(function func(*gocui.Gui, *gocui.View) error) func(*gocui.Gui, *gocui.View) error {
return func(g *gocui.Gui, v *gocui.View) error { return func(g *gocui.Gui, v *gocui.View) error {
if function != nil { if function != nil {
if err := function(g, v); err != nil { if err := function(g, v); err != nil {
panic(err) panic(err)
} }
} }
return closeConfirmationPrompt(g) return gui.closeConfirmationPrompt(g)
} }
} }
func closeConfirmationPrompt(g *gocui.Gui) error { func (gui *Gui) closeConfirmationPrompt(g *gocui.Gui) error {
view, err := g.View("confirmation") view, err := g.View("confirmation")
if err != nil { if err != nil {
panic(err) panic(err)
} }
if err := returnFocus(g, view); err != nil { if err := gui.returnFocus(g, view); err != nil {
panic(err) panic(err)
} }
g.DeleteKeybindings("confirmation") g.DeleteKeybindings("confirmation")
return g.DeleteView("confirmation") return g.DeleteView("confirmation")
} }
func getMessageHeight(message string, width int) int { func (gui *Gui) getMessageHeight(message string, width int) int {
lines := strings.Split(message, "\n") lines := strings.Split(message, "\n")
lineCount := 0 lineCount := 0
for _, line := range lines { for _, line := range lines {
@ -45,20 +46,20 @@ func getMessageHeight(message string, width int) int {
return lineCount return lineCount
} }
func getConfirmationPanelDimensions(g *gocui.Gui, prompt string) (int, int, int, int) { func (gui *Gui) getConfirmationPanelDimensions(g *gocui.Gui, prompt string) (int, int, int, int) {
width, height := g.Size() width, height := g.Size()
panelWidth := width / 2 panelWidth := width / 2
panelHeight := getMessageHeight(prompt, panelWidth) panelHeight := gui.getMessageHeight(prompt, panelWidth)
return width/2 - panelWidth/2, return width/2 - panelWidth/2,
height/2 - panelHeight/2 - panelHeight%2 - 1, height/2 - panelHeight/2 - panelHeight%2 - 1,
width/2 + panelWidth/2, width/2 + panelWidth/2,
height/2 + panelHeight/2 height/2 + panelHeight/2
} }
func createPromptPanel(g *gocui.Gui, currentView *gocui.View, title string, handleConfirm func(*gocui.Gui, *gocui.View) error) error { func (gui *Gui) createPromptPanel(g *gocui.Gui, currentView *gocui.View, title string, handleConfirm func(*gocui.Gui, *gocui.View) error) error {
g.SetViewOnBottom("commitMessage") g.SetViewOnBottom("commitMessage")
// only need to fit one line // only need to fit one line
x0, y0, x1, y1 := getConfirmationPanelDimensions(g, "") x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(g, "")
if confirmationView, err := g.SetView("confirmation", x0, y0, x1, y1, 0); err != nil { if confirmationView, err := g.SetView("confirmation", x0, y0, x1, y1, 0); err != nil {
if err != gocui.ErrUnknownView { if err != gocui.ErrUnknownView {
return err return err
@ -66,41 +67,41 @@ func createPromptPanel(g *gocui.Gui, currentView *gocui.View, title string, hand
confirmationView.Editable = true confirmationView.Editable = true
confirmationView.Title = title confirmationView.Title = title
switchFocus(g, currentView, confirmationView) gui.switchFocus(g, currentView, confirmationView)
return setKeyBindings(g, handleConfirm, nil) return gui.setKeyBindings(g, handleConfirm, nil)
} }
return nil return nil
} }
func createConfirmationPanel(g *gocui.Gui, currentView *gocui.View, title, prompt string, handleConfirm, handleClose func(*gocui.Gui, *gocui.View) error) error { func (gui *Gui) createConfirmationPanel(g *gocui.Gui, currentView *gocui.View, title, prompt string, handleConfirm, handleClose func(*gocui.Gui, *gocui.View) error) error {
g.SetViewOnBottom("commitMessage") g.SetViewOnBottom("commitMessage")
g.Update(func(g *gocui.Gui) error { g.Update(func(g *gocui.Gui) error {
// delete the existing confirmation panel if it exists // delete the existing confirmation panel if it exists
if view, _ := g.View("confirmation"); view != nil { if view, _ := g.View("confirmation"); view != nil {
if err := closeConfirmationPrompt(g); err != nil { if err := gui.closeConfirmationPrompt(g); err != nil {
panic(err) panic(err)
} }
} }
x0, y0, x1, y1 := getConfirmationPanelDimensions(g, prompt) x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(g, prompt)
if confirmationView, err := g.SetView("confirmation", x0, y0, x1, y1, 0); err != nil { if confirmationView, err := g.SetView("confirmation", x0, y0, x1, y1, 0); err != nil {
if err != gocui.ErrUnknownView { if err != gocui.ErrUnknownView {
return err return err
} }
confirmationView.Title = title confirmationView.Title = title
confirmationView.FgColor = gocui.ColorWhite confirmationView.FgColor = gocui.ColorWhite
renderString(g, "confirmation", prompt) gui.renderString(g, "confirmation", prompt)
switchFocus(g, currentView, confirmationView) gui.switchFocus(g, currentView, confirmationView)
return setKeyBindings(g, handleConfirm, handleClose) return gui.setKeyBindings(g, handleConfirm, handleClose)
} }
return nil return nil
}) })
return nil return nil
} }
func handleNewline(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) handleNewline(g *gocui.Gui, v *gocui.View) error {
// resising ahead of time so that the top line doesn't get hidden to make // resising ahead of time so that the top line doesn't get hidden to make
// room for the cursor on the second line // room for the cursor on the second line
x0, y0, x1, y1 := getConfirmationPanelDimensions(g, v.Buffer()) x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(g, v.Buffer())
if _, err := g.SetView("confirmation", x0, y0, x1, y1+1, 0); err != nil { if _, err := g.SetView("confirmation", x0, y0, x1, y1+1, 0); err != nil {
if err != gocui.ErrUnknownView { if err != gocui.ErrUnknownView {
return err return err
@ -111,45 +112,38 @@ func handleNewline(g *gocui.Gui, v *gocui.View) error {
return nil return nil
} }
func setKeyBindings(g *gocui.Gui, handleConfirm, handleClose func(*gocui.Gui, *gocui.View) error) error { func (gui *Gui) setKeyBindings(g *gocui.Gui, handleConfirm, handleClose func(*gocui.Gui, *gocui.View) error) error {
renderString(g, "options", "esc: close, enter: confirm") gui.renderString(g, "options", "esc: close, enter: confirm")
if err := g.SetKeybinding("confirmation", gocui.KeyEnter, gocui.ModNone, wrappedConfirmationFunction(handleConfirm)); err != nil { if err := g.SetKeybinding("confirmation", gocui.KeyEnter, gocui.ModNone, gui.wrappedConfirmationFunction(handleConfirm)); err != nil {
return err return err
} }
if err := g.SetKeybinding("confirmation", gocui.KeyTab, gocui.ModNone, handleNewline); err != nil { if err := g.SetKeybinding("confirmation", gocui.KeyTab, gocui.ModNone, gui.handleNewline); err != nil {
return err return err
} }
return g.SetKeybinding("confirmation", gocui.KeyEsc, gocui.ModNone, wrappedConfirmationFunction(handleClose)) return g.SetKeybinding("confirmation", gocui.KeyEsc, gocui.ModNone, gui.wrappedConfirmationFunction(handleClose))
} }
func createMessagePanel(g *gocui.Gui, currentView *gocui.View, title, prompt string) error { func (gui *Gui) createMessagePanel(g *gocui.Gui, currentView *gocui.View, title, prompt string) error {
return createConfirmationPanel(g, currentView, title, prompt, nil, nil) return gui.createConfirmationPanel(g, currentView, title, prompt, nil, nil)
} }
func createErrorPanel(g *gocui.Gui, message string) error { func (gui *Gui) createErrorPanel(g *gocui.Gui, message string) error {
currentView := g.CurrentView() currentView := g.CurrentView()
colorFunction := color.New(color.FgRed).SprintFunc() colorFunction := color.New(color.FgRed).SprintFunc()
coloredMessage := colorFunction(strings.TrimSpace(message)) coloredMessage := colorFunction(strings.TrimSpace(message))
return createConfirmationPanel(g, currentView, "Error", coloredMessage, nil, nil) return gui.createConfirmationPanel(g, currentView, "Error", coloredMessage, nil, nil)
} }
func trimTrailingNewline(str string) string { func (gui *Gui) resizePopupPanel(g *gocui.Gui, v *gocui.View) error {
if strings.HasSuffix(str, "\n") {
return str[:len(str)-1]
}
return str
}
func resizePopupPanel(g *gocui.Gui, v *gocui.View) error {
// If the confirmation panel is already displayed, just resize the width, // If the confirmation panel is already displayed, just resize the width,
// otherwise continue // otherwise continue
content := trimTrailingNewline(v.Buffer()) content := utils.TrimTrailingNewline(v.Buffer())
x0, y0, x1, y1 := getConfirmationPanelDimensions(g, content) x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(g, content)
vx0, vy0, vx1, vy1 := v.Dimensions() vx0, vy0, vx1, vy1 := v.Dimensions()
if vx0 == x0 && vy0 == y0 && vx1 == x1 && vy1 == y1 { if vx0 == x0 && vy0 == y0 && vx1 == x1 && vy1 == y1 {
return nil return nil
} }
devLog("resizing popup panel") gui.Log.Info("resizing popup panel")
_, err := g.SetView(v.Name(), x0, y0, x1, y1, 0) _, err := g.SetView(v.Name(), x0, y0, x1, y1, 0)
return err return err
} }

389
pkg/gui/files_panel.go Normal file
View File

@ -0,0 +1,389 @@
package gui
import (
// "io"
// "io/ioutil"
// "strings"
"errors"
"os/exec"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
)
var (
errNoFiles = errors.New("No changed files")
errNoUsername = errors.New(`No username set. Please do: git config --global user.name "Your Name"`)
)
func (gui *Gui) stagedFiles(files []commands.File) []commands.File {
result := make([]commands.File, 0)
for _, file := range files {
if file.HasStagedChanges {
result = append(result, file)
}
}
return result
}
func (gui *Gui) stageSelectedFile(g *gocui.Gui) error {
file, err := gui.getSelectedFile(g)
if err != nil {
return err
}
return gui.GitCommand.StageFile(file.Name)
}
func (gui *Gui) handleFilePress(g *gocui.Gui, v *gocui.View) error {
file, err := gui.getSelectedFile(g)
if err != nil {
if err == errNoFiles {
return nil
}
return err
}
if file.HasMergeConflicts {
return gui.handleSwitchToMerge(g, v)
}
if file.HasUnstagedChanges {
gui.GitCommand.StageFile(file.Name)
} else {
gui.GitCommand.UnStageFile(file.Name, file.Tracked)
}
if err := gui.refreshFiles(g); err != nil {
return err
}
return gui.handleFileSelect(g, v)
}
func (gui *Gui) handleAddPatch(g *gocui.Gui, v *gocui.View) error {
file, err := gui.getSelectedFile(g)
if err != nil {
if err == errNoFiles {
return nil
}
return err
}
if !file.HasUnstagedChanges {
return gui.createErrorPanel(g, "File has no unstaged changes to add")
}
if !file.Tracked {
return gui.createErrorPanel(g, "Cannot git add --patch untracked files")
}
sub, err := gui.GitCommand.AddPatch(file.Name)
if err != nil {
return err
}
gui.SubProcess = sub
return ErrSubProcess
}
func (gui *Gui) getSelectedFile(g *gocui.Gui) (commands.File, error) {
if len(gui.State.Files) == 0 {
return commands.File{}, errNoFiles
}
filesView, err := g.View("files")
if err != nil {
panic(err)
}
lineNumber := gui.getItemPosition(filesView)
return gui.State.Files[lineNumber], nil
}
func (gui *Gui) handleFileRemove(g *gocui.Gui, v *gocui.View) error {
file, err := gui.getSelectedFile(g)
if err != nil {
if err == errNoFiles {
return nil
}
return err
}
var deleteVerb string
if file.Tracked {
deleteVerb = "checkout"
} else {
deleteVerb = "delete"
}
return gui.createConfirmationPanel(g, v, strings.Title(deleteVerb)+" file", "Are you sure you want to "+deleteVerb+" "+file.Name+" (you will lose your changes)?", func(g *gocui.Gui, v *gocui.View) error {
if err := gui.GitCommand.RemoveFile(file); err != nil {
panic(err)
}
return gui.refreshFiles(g)
}, nil)
}
func (gui *Gui) handleIgnoreFile(g *gocui.Gui, v *gocui.View) error {
file, err := gui.getSelectedFile(g)
if err != nil {
return gui.createErrorPanel(g, err.Error())
}
if file.Tracked {
return gui.createErrorPanel(g, "Cannot ignore tracked files")
}
gui.GitCommand.Ignore(file.Name)
return gui.refreshFiles(g)
}
func (gui *Gui) renderfilesOptions(g *gocui.Gui, file *commands.File) error {
optionsMap := map[string]string{
"← → ↑ ↓": "navigate",
"S": "stash files",
"c": "commit changes",
"o": "open",
"i": "ignore",
"d": "delete",
"space": "toggle staged",
"R": "refresh",
"t": "add patch",
"e": "edit",
"PgUp/PgDn": "scroll",
}
if gui.State.HasMergeConflicts {
optionsMap["a"] = "abort merge"
optionsMap["m"] = "resolve merge conflicts"
}
if file == nil {
return gui.renderOptionsMap(g, optionsMap)
}
if file.Tracked {
optionsMap["d"] = "checkout"
}
return gui.renderOptionsMap(g, optionsMap)
}
func (gui *Gui) handleFileSelect(g *gocui.Gui, v *gocui.View) error {
file, err := gui.getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return err
}
gui.renderString(g, "main", "No changed files")
return gui.renderfilesOptions(g, nil)
}
gui.renderfilesOptions(g, &file)
var content string
if file.HasMergeConflicts {
return gui.refreshMergePanel(g)
}
content = gui.GitCommand.Diff(file)
return gui.renderString(g, "main", content)
}
func (gui *Gui) handleCommitPress(g *gocui.Gui, filesView *gocui.View) error {
if len(gui.stagedFiles(gui.State.Files)) == 0 && !gui.State.HasMergeConflicts {
return gui.createErrorPanel(g, "There are no staged files to commit")
}
commitMessageView := gui.getCommitMessageView(g)
g.Update(func(g *gocui.Gui) error {
g.SetViewOnTop("commitMessage")
gui.switchFocus(g, filesView, commitMessageView)
return nil
})
return nil
}
// handleCommitEditorPress - handle when the user wants to commit changes via
// their editor rather than via the popup panel
func (gui *Gui) handleCommitEditorPress(g *gocui.Gui, filesView *gocui.View) error {
if len(gui.stagedFiles(gui.State.Files)) == 0 && !gui.State.HasMergeConflicts {
return gui.createErrorPanel(g, "There are no staged files to commit")
}
gui.PrepareSubProcess(g, "git", "commit")
return nil
}
// PrepareSubProcess - prepare a subprocess for execution and tell the gui to switch to it
func (gui *Gui) PrepareSubProcess(g *gocui.Gui, commands ...string) error {
sub, err := gui.GitCommand.PrepareCommitSubProcess()
if err != nil {
return err
}
gui.SubProcess = sub
g.Update(func(g *gocui.Gui) error {
return ErrSubProcess
})
return nil
}
func (gui *Gui) genericFileOpen(g *gocui.Gui, v *gocui.View, open func(string) (*exec.Cmd, error)) error {
file, err := gui.getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return err
}
return nil
}
sub, err := open(file.Name)
if err != nil {
return gui.createErrorPanel(g, err.Error())
}
if sub != nil {
gui.SubProcess = sub
return ErrSubProcess
}
return nil
}
func (gui *Gui) handleFileEdit(g *gocui.Gui, v *gocui.View) error {
return gui.genericFileOpen(g, v, gui.OSCommand.EditFile)
}
func (gui *Gui) handleFileOpen(g *gocui.Gui, v *gocui.View) error {
return gui.genericFileOpen(g, v, gui.OSCommand.OpenFile)
}
func (gui *Gui) handleSublimeFileOpen(g *gocui.Gui, v *gocui.View) error {
return gui.genericFileOpen(g, v, gui.OSCommand.SublimeOpenFile)
}
func (gui *Gui) handleVsCodeFileOpen(g *gocui.Gui, v *gocui.View) error {
return gui.genericFileOpen(g, v, gui.OSCommand.VsCodeOpenFile)
}
func (gui *Gui) handleRefreshFiles(g *gocui.Gui, v *gocui.View) error {
return gui.refreshFiles(g)
}
func (gui *Gui) refreshStateFiles() {
// get files to stage
files := gui.GitCommand.GetStatusFiles()
gui.State.Files = gui.GitCommand.MergeStatusFiles(gui.State.Files, files)
gui.updateHasMergeConflictStatus()
}
func (gui *Gui) updateHasMergeConflictStatus() error {
merging, err := gui.GitCommand.IsInMergeState()
if err != nil {
return err
}
gui.State.HasMergeConflicts = merging
return nil
}
func (gui *Gui) renderFile(file commands.File, filesView *gocui.View) {
// potentially inefficient to be instantiating these color
// objects with each render
red := color.New(color.FgRed)
green := color.New(color.FgGreen)
if !file.Tracked && !file.HasStagedChanges {
red.Fprintln(filesView, file.DisplayString)
return
}
green.Fprint(filesView, file.DisplayString[0:1])
red.Fprint(filesView, file.DisplayString[1:3])
if file.HasUnstagedChanges {
red.Fprintln(filesView, file.Name)
} else {
green.Fprintln(filesView, file.Name)
}
}
func (gui *Gui) catSelectedFile(g *gocui.Gui) (string, error) {
item, err := gui.getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return "", err
}
return "", gui.renderString(g, "main", "No file to display")
}
cat, err := gui.GitCommand.CatFile(item.Name)
if err != nil {
panic(err)
}
return cat, nil
}
func (gui *Gui) refreshFiles(g *gocui.Gui) error {
filesView, err := g.View("files")
if err != nil {
return err
}
gui.refreshStateFiles()
filesView.Clear()
for _, file := range gui.State.Files {
gui.renderFile(file, filesView)
}
gui.correctCursor(filesView)
if filesView == g.CurrentView() {
gui.handleFileSelect(g, filesView)
}
return nil
}
func (gui *Gui) pullFiles(g *gocui.Gui, v *gocui.View) error {
gui.createMessagePanel(g, v, "", "Pulling...")
go func() {
if output, err := gui.GitCommand.Pull(); err != nil {
gui.createErrorPanel(g, output)
} else {
gui.closeConfirmationPrompt(g)
gui.refreshCommits(g)
gui.refreshStatus(g)
}
gui.refreshFiles(g)
}()
return nil
}
func (gui *Gui) pushFiles(g *gocui.Gui, v *gocui.View) error {
gui.createMessagePanel(g, v, "", "Pushing...")
go func() {
branchName := gui.State.Branches[0].Name
if output, err := gui.GitCommand.Push(branchName); err != nil {
gui.createErrorPanel(g, output)
} else {
gui.closeConfirmationPrompt(g)
gui.refreshCommits(g)
gui.refreshStatus(g)
}
}()
return nil
}
func (gui *Gui) handleSwitchToMerge(g *gocui.Gui, v *gocui.View) error {
mergeView, err := g.View("main")
if err != nil {
return err
}
file, err := gui.getSelectedFile(g)
if err != nil {
if err != errNoFiles {
return err
}
return nil
}
if !file.HasMergeConflicts {
return gui.createErrorPanel(g, "This file has no merge conflicts")
}
gui.switchFocus(g, v, mergeView)
return gui.refreshMergePanel(g)
}
func (gui *Gui) handleAbortMerge(g *gocui.Gui, v *gocui.View) error {
output, err := gui.GitCommand.AbortMerge()
if err != nil {
return gui.createErrorPanel(g, output)
}
gui.createMessagePanel(g, v, "", "Merge aborted")
gui.refreshStatus(g)
return gui.refreshFiles(g)
}
func (gui *Gui) handleResetHard(g *gocui.Gui, v *gocui.View) error {
return gui.createConfirmationPanel(g, v, "Clear file panel", "Are you sure you want `reset --hard HEAD`? You may lose changes", func(g *gocui.Gui, v *gocui.View) error {
if err := gui.GitCommand.ResetHard(); err != nil {
gui.createErrorPanel(g, err.Error())
}
return gui.refreshFiles(g)
}, nil)
}

164
gui.go → pkg/gui/gui.go
View File

@ -1,53 +1,84 @@
package main package gui
import ( import (
// "io" // "io"
// "io/ioutil" // "io/ioutil"
"errors"
"io/ioutil"
"log"
"os"
"os/exec"
"runtime" "runtime"
"strings" "strings"
"time" "time"
// "strings" // "strings"
"github.com/Sirupsen/logrus"
"github.com/golang-collections/collections/stack" "github.com/golang-collections/collections/stack"
"github.com/jesseduffield/gocui" "github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
) )
// OverlappingEdges determines if panel edges overlap // OverlappingEdges determines if panel edges overlap
var OverlappingEdges = false var OverlappingEdges = false
type stateType struct { // ErrSubProcess tells us we're switching to a subprocess so we need to
GitFiles []GitFile // close the Gui until it is finished
Branches []Branch var (
Commits []Commit ErrSubProcess = errors.New("running subprocess")
StashEntries []StashEntry )
// Gui wraps the gocui Gui object which handles rendering and events
type Gui struct {
g *gocui.Gui
Log *logrus.Logger
GitCommand *commands.GitCommand
OSCommand *commands.OSCommand
Version string
SubProcess *exec.Cmd
State guiState
}
type guiState struct {
Files []commands.File
Branches []commands.Branch
Commits []commands.Commit
StashEntries []commands.StashEntry
PreviousView string PreviousView string
HasMergeConflicts bool HasMergeConflicts bool
ConflictIndex int ConflictIndex int
ConflictTop bool ConflictTop bool
Conflicts []conflict Conflicts []commands.Conflict
EditHistory *stack.Stack EditHistory *stack.Stack
Platform platform Platform platform
Version string
} }
type conflict struct { // NewGui builds a new gui handler
start int func NewGui(log *logrus.Logger, gitCommand *commands.GitCommand, oSCommand *commands.OSCommand, version string) (*Gui, error) {
middle int initialState := guiState{
end int Files: make([]commands.File, 0),
}
var state = stateType{
GitFiles: make([]GitFile, 0),
PreviousView: "files", PreviousView: "files",
Commits: make([]Commit, 0), Commits: make([]commands.Commit, 0),
StashEntries: make([]StashEntry, 0), StashEntries: make([]commands.StashEntry, 0),
ConflictIndex: 0, ConflictIndex: 0,
ConflictTop: true, ConflictTop: true,
Conflicts: make([]conflict, 0), Conflicts: make([]commands.Conflict, 0),
EditHistory: stack.New(), EditHistory: stack.New(),
Platform: getPlatform(), Platform: getPlatform(),
Version: "test version", // TODO: send version in
}
return &Gui{
Log: log,
GitCommand: gitCommand,
OSCommand: oSCommand,
Version: version,
State: initialState,
}, nil
} }
type platform struct { type platform struct {
@ -76,7 +107,7 @@ func getPlatform() platform {
} }
} }
func scrollUpMain(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) scrollUpMain(g *gocui.Gui, v *gocui.View) error {
mainView, _ := g.View("main") mainView, _ := g.View("main")
ox, oy := mainView.Origin() ox, oy := mainView.Origin()
if oy >= 1 { if oy >= 1 {
@ -85,7 +116,7 @@ func scrollUpMain(g *gocui.Gui, v *gocui.View) error {
return nil return nil
} }
func scrollDownMain(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) scrollDownMain(g *gocui.Gui, v *gocui.View) error {
mainView, _ := g.View("main") mainView, _ := g.View("main")
ox, oy := mainView.Origin() ox, oy := mainView.Origin()
if oy < len(mainView.BufferLines()) { if oy < len(mainView.BufferLines()) {
@ -94,8 +125,8 @@ func scrollDownMain(g *gocui.Gui, v *gocui.View) error {
return nil return nil
} }
func handleRefresh(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) handleRefresh(g *gocui.Gui, v *gocui.View) error {
return refreshSidePanels(g) return gui.refreshSidePanels(g)
} }
func max(a, b int) int { func max(a, b int) int {
@ -106,7 +137,7 @@ func max(a, b int) int {
} }
// layout is called for every screen re-render e.g. when the screen is resized // layout is called for every screen re-render e.g. when the screen is resized
func layout(g *gocui.Gui) error { func (gui *Gui) layout(g *gocui.Gui) error {
g.Highlight = true g.Highlight = true
g.SelFgColor = gocui.ColorWhite | gocui.AttrBold g.SelFgColor = gocui.ColorWhite | gocui.AttrBold
width, height := g.Size() width, height := g.Size()
@ -195,7 +226,7 @@ func layout(g *gocui.Gui) error {
v.FgColor = gocui.ColorWhite v.FgColor = gocui.ColorWhite
} }
if v, err := g.SetView("options", -1, optionsTop, width-len(version)-2, optionsTop+2, 0); err != nil { if v, err := g.SetView("options", -1, optionsTop, width-len(gui.Version)-2, optionsTop+2, 0); err != nil {
if err != gocui.ErrUnknownView { if err != gocui.ErrUnknownView {
return err return err
} }
@ -203,7 +234,7 @@ func layout(g *gocui.Gui) error {
v.Frame = false v.Frame = false
} }
if getCommitMessageView(g) == nil { if gui.getCommitMessageView(g) == nil {
// doesn't matter where this view starts because it will be hidden // doesn't matter where this view starts because it will be hidden
if commitMessageView, err := g.SetView("commitMessage", 0, 0, width, height, 0); err != nil { if commitMessageView, err := g.SetView("commitMessage", 0, 0, width, height, 0); err != nil {
if err != gocui.ErrUnknownView { if err != gocui.ErrUnknownView {
@ -216,47 +247,47 @@ func layout(g *gocui.Gui) error {
} }
} }
if v, err := g.SetView("version", width-len(version)-1, optionsTop, width, optionsTop+2, 0); err != nil { if v, err := g.SetView("version", width-len(gui.Version)-1, optionsTop, width, optionsTop+2, 0); err != nil {
if err != gocui.ErrUnknownView { if err != gocui.ErrUnknownView {
return err return err
} }
v.BgColor = gocui.ColorDefault v.BgColor = gocui.ColorDefault
v.FgColor = gocui.ColorGreen v.FgColor = gocui.ColorGreen
v.Frame = false v.Frame = false
renderString(g, "version", version) gui.renderString(g, "version", gui.Version)
// these are only called once // these are only called once
handleFileSelect(g, filesView) gui.handleFileSelect(g, filesView)
refreshFiles(g) gui.refreshFiles(g)
refreshBranches(g) gui.refreshBranches(g)
refreshCommits(g) gui.refreshCommits(g)
refreshStashEntries(g) gui.refreshStashEntries(g)
nextView(g, nil) gui.nextView(g, nil)
} }
resizePopupPanels(g) gui.resizePopupPanels(g)
return nil return nil
} }
func fetch(g *gocui.Gui) error { func (gui *Gui) fetch(g *gocui.Gui) error {
gitFetch() gui.GitCommand.Fetch()
refreshStatus(g) gui.refreshStatus(g)
return nil return nil
} }
func updateLoader(g *gocui.Gui) error { func (gui *Gui) updateLoader(g *gocui.Gui) error {
if confirmationView, _ := g.View("confirmation"); confirmationView != nil { if confirmationView, _ := g.View("confirmation"); confirmationView != nil {
content := trimmedContent(confirmationView) content := gui.trimmedContent(confirmationView)
if strings.Contains(content, "...") { if strings.Contains(content, "...") {
staticContent := strings.Split(content, "...")[0] + "..." staticContent := strings.Split(content, "...")[0] + "..."
renderString(g, "confirmation", staticContent+" "+loader()) gui.renderString(g, "confirmation", staticContent+" "+gui.loader())
} }
} }
return nil return nil
} }
func goEvery(g *gocui.Gui, interval time.Duration, function func(*gocui.Gui) error) { func (gui *Gui) goEvery(g *gocui.Gui, interval time.Duration, function func(*gocui.Gui) error) {
go func() { go func() {
for range time.Tick(interval) { for range time.Tick(interval) {
function(g) function(g)
@ -264,37 +295,64 @@ func goEvery(g *gocui.Gui, interval time.Duration, function func(*gocui.Gui) err
}() }()
} }
func resizePopupPanels(g *gocui.Gui) error { func (gui *Gui) resizePopupPanels(g *gocui.Gui) error {
v := g.CurrentView() v := g.CurrentView()
if v.Name() == "commitMessage" || v.Name() == "confirmation" { if v.Name() == "commitMessage" || v.Name() == "confirmation" {
return resizePopupPanel(g, v) return gui.resizePopupPanel(g, v)
} }
return nil return nil
} }
func run() (err error) { // Run setup the gui with keybindings and start the mainloop
func (gui *Gui) Run() error {
g, err := gocui.NewGui(gocui.OutputNormal, OverlappingEdges) g, err := gocui.NewGui(gocui.OutputNormal, OverlappingEdges)
if err != nil { if err != nil {
return return err
} }
defer g.Close() defer g.Close()
gui.g = g // TODO: always use gui.g rather than passing g around everywhere
g.FgColor = gocui.ColorDefault g.FgColor = gocui.ColorDefault
goEvery(g, time.Second*60, fetch) gui.goEvery(g, time.Second*60, gui.fetch)
goEvery(g, time.Second*10, refreshFiles) gui.goEvery(g, time.Second*10, gui.refreshFiles)
goEvery(g, time.Millisecond*10, updateLoader) gui.goEvery(g, time.Millisecond*10, gui.updateLoader)
g.SetManagerFunc(layout) g.SetManagerFunc(gui.layout)
if err = keybindings(g); err != nil { if err = gui.keybindings(g); err != nil {
return return err
} }
err = g.MainLoop() err = g.MainLoop()
return return err
} }
func quit(g *gocui.Gui, v *gocui.View) error { // RunWithSubprocesses loops, instantiating a new gocui.Gui with each iteration
// if the error returned from a run is a ErrSubProcess, it runs the subprocess
// otherwise it handles the error, possibly by quitting the application
func (gui *Gui) RunWithSubprocesses() {
for {
if err := gui.Run(); err != nil {
if err == gocui.ErrQuit {
break
} else if err == ErrSubProcess {
gui.SubProcess.Stdin = os.Stdin
gui.SubProcess.Stdout = os.Stdout
gui.SubProcess.Stderr = os.Stderr
gui.SubProcess.Run()
gui.SubProcess.Stdout = ioutil.Discard
gui.SubProcess.Stderr = ioutil.Discard
gui.SubProcess.Stdin = nil
gui.SubProcess = nil
} else {
log.Panicln(err)
}
}
}
}
func (gui *Gui) quit(g *gocui.Gui, v *gocui.View) error {
return gocui.ErrQuit return gocui.ErrQuit
} }

126
keybindings.go → pkg/gui/keybindings.go
View File

@ -1,4 +1,4 @@
package main package gui
import "github.com/jesseduffield/gocui" import "github.com/jesseduffield/gocui"
@ -12,75 +12,75 @@ type Binding struct {
Modifier gocui.Modifier Modifier gocui.Modifier
} }
func keybindings(g *gocui.Gui) error { func (gui *Gui) keybindings(g *gocui.Gui) error {
bindings := []Binding{ bindings := []Binding{
{ViewName: "", Key: 'q', Modifier: gocui.ModNone, Handler: quit}, {ViewName: "", Key: 'q', Modifier: gocui.ModNone, Handler: gui.quit},
{ViewName: "", Key: gocui.KeyCtrlC, Modifier: gocui.ModNone, Handler: quit}, {ViewName: "", Key: gocui.KeyCtrlC, Modifier: gocui.ModNone, Handler: gui.quit},
{ViewName: "", Key: gocui.KeyCtrlU, Modifier: gocui.ModNone, Handler: scrollUpMain}, {ViewName: "", Key: gocui.KeyPgup, Modifier: gocui.ModNone, Handler: gui.scrollUpMain},
{ViewName: "", Key: gocui.KeyCtrlD, Modifier: gocui.ModNone, Handler: scrollDownMain}, {ViewName: "", Key: gocui.KeyPgdn, Modifier: gocui.ModNone, Handler: gui.scrollDownMain},
{ViewName: "", Key: gocui.KeyPgup, Modifier: gocui.ModNone, Handler: scrollUpMain}, {ViewName: "", Key: gocui.KeyCtrlU, Modifier: gocui.ModNone, Handler: gui.scrollUpMain},
{ViewName: "", Key: gocui.KeyPgdn, Modifier: gocui.ModNone, Handler: scrollDownMain}, {ViewName: "", Key: gocui.KeyCtrlD, Modifier: gocui.ModNone, Handler: gui.scrollDownMain},
{ViewName: "", Key: 'P', Modifier: gocui.ModNone, Handler: pushFiles}, {ViewName: "", Key: 'P', Modifier: gocui.ModNone, Handler: gui.pushFiles},
{ViewName: "", Key: 'p', Modifier: gocui.ModNone, Handler: pullFiles}, {ViewName: "", Key: 'p', Modifier: gocui.ModNone, Handler: gui.pullFiles},
{ViewName: "", Key: 'R', Modifier: gocui.ModNone, Handler: handleRefresh}, {ViewName: "", Key: 'R', Modifier: gocui.ModNone, Handler: gui.handleRefresh},
{ViewName: "files", Key: 'c', Modifier: gocui.ModNone, Handler: handleCommitPress}, {ViewName: "files", Key: 'c', Modifier: gocui.ModNone, Handler: gui.handleCommitPress},
{ViewName: "files", Key: 'C', Modifier: gocui.ModNone, Handler: handleCommitEditorPress}, {ViewName: "files", Key: 'C', Modifier: gocui.ModNone, Handler: gui.handleCommitEditorPress},
{ViewName: "files", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handleFilePress}, {ViewName: "files", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: gui.handleFilePress},
{ViewName: "files", Key: 'd', Modifier: gocui.ModNone, Handler: handleFileRemove}, {ViewName: "files", Key: 'd', Modifier: gocui.ModNone, Handler: gui.handleFileRemove},
{ViewName: "files", Key: 'm', Modifier: gocui.ModNone, Handler: handleSwitchToMerge}, {ViewName: "files", Key: 'm', Modifier: gocui.ModNone, Handler: gui.handleSwitchToMerge},
{ViewName: "files", Key: 'e', Modifier: gocui.ModNone, Handler: handleFileEdit}, {ViewName: "files", Key: 'e', Modifier: gocui.ModNone, Handler: gui.handleFileEdit},
{ViewName: "files", Key: 'o', Modifier: gocui.ModNone, Handler: handleFileOpen}, {ViewName: "files", Key: 'o', Modifier: gocui.ModNone, Handler: gui.handleFileOpen},
{ViewName: "files", Key: 's', Modifier: gocui.ModNone, Handler: handleSublimeFileOpen}, {ViewName: "files", Key: 's', Modifier: gocui.ModNone, Handler: gui.handleSublimeFileOpen},
{ViewName: "files", Key: 'v', Modifier: gocui.ModNone, Handler: handleVsCodeFileOpen}, {ViewName: "files", Key: 'v', Modifier: gocui.ModNone, Handler: gui.handleVsCodeFileOpen},
{ViewName: "files", Key: 'i', Modifier: gocui.ModNone, Handler: handleIgnoreFile}, {ViewName: "files", Key: 'i', Modifier: gocui.ModNone, Handler: gui.handleIgnoreFile},
{ViewName: "files", Key: 'r', Modifier: gocui.ModNone, Handler: handleRefreshFiles}, {ViewName: "files", Key: 'r', Modifier: gocui.ModNone, Handler: gui.handleRefreshFiles},
{ViewName: "files", Key: 'S', Modifier: gocui.ModNone, Handler: handleStashSave}, {ViewName: "files", Key: 'S', Modifier: gocui.ModNone, Handler: gui.handleStashSave},
{ViewName: "files", Key: 'a', Modifier: gocui.ModNone, Handler: handleAbortMerge}, {ViewName: "files", Key: 'a', Modifier: gocui.ModNone, Handler: gui.handleAbortMerge},
{ViewName: "files", Key: 't', Modifier: gocui.ModNone, Handler: handleAddPatch}, {ViewName: "files", Key: 't', Modifier: gocui.ModNone, Handler: gui.handleAddPatch},
{ViewName: "files", Key: 'D', Modifier: gocui.ModNone, Handler: handleResetHard}, {ViewName: "files", Key: 'D', Modifier: gocui.ModNone, Handler: gui.handleResetHard},
{ViewName: "main", Key: gocui.KeyEsc, Modifier: gocui.ModNone, Handler: handleEscapeMerge}, {ViewName: "main", Key: gocui.KeyEsc, Modifier: gocui.ModNone, Handler: gui.handleEscapeMerge},
{ViewName: "main", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handlePickHunk}, {ViewName: "main", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: gui.handlePickHunk},
{ViewName: "main", Key: 'b', Modifier: gocui.ModNone, Handler: handlePickBothHunks}, {ViewName: "main", Key: 'b', Modifier: gocui.ModNone, Handler: gui.handlePickBothHunks},
{ViewName: "main", Key: gocui.KeyArrowLeft, Modifier: gocui.ModNone, Handler: handleSelectPrevConflict}, {ViewName: "main", Key: gocui.KeyArrowLeft, Modifier: gocui.ModNone, Handler: gui.handleSelectPrevConflict},
{ViewName: "main", Key: gocui.KeyArrowRight, Modifier: gocui.ModNone, Handler: handleSelectNextConflict}, {ViewName: "main", Key: gocui.KeyArrowRight, Modifier: gocui.ModNone, Handler: gui.handleSelectNextConflict},
{ViewName: "main", Key: gocui.KeyArrowUp, Modifier: gocui.ModNone, Handler: handleSelectTop}, {ViewName: "main", Key: gocui.KeyArrowUp, Modifier: gocui.ModNone, Handler: gui.handleSelectTop},
{ViewName: "main", Key: gocui.KeyArrowDown, Modifier: gocui.ModNone, Handler: handleSelectBottom}, {ViewName: "main", Key: gocui.KeyArrowDown, Modifier: gocui.ModNone, Handler: gui.handleSelectBottom},
{ViewName: "main", Key: 'h', Modifier: gocui.ModNone, Handler: handleSelectPrevConflict}, {ViewName: "main", Key: 'h', Modifier: gocui.ModNone, Handler: gui.handleSelectPrevConflict},
{ViewName: "main", Key: 'l', Modifier: gocui.ModNone, Handler: handleSelectNextConflict}, {ViewName: "main", Key: 'l', Modifier: gocui.ModNone, Handler: gui.handleSelectNextConflict},
{ViewName: "main", Key: 'k', Modifier: gocui.ModNone, Handler: handleSelectTop}, {ViewName: "main", Key: 'k', Modifier: gocui.ModNone, Handler: gui.handleSelectTop},
{ViewName: "main", Key: 'j', Modifier: gocui.ModNone, Handler: handleSelectBottom}, {ViewName: "main", Key: 'j', Modifier: gocui.ModNone, Handler: gui.handleSelectBottom},
{ViewName: "main", Key: 'z', Modifier: gocui.ModNone, Handler: handlePopFileSnapshot}, {ViewName: "main", Key: 'z', Modifier: gocui.ModNone, Handler: gui.handlePopFileSnapshot},
{ViewName: "branches", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handleBranchPress}, {ViewName: "branches", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: gui.handleBranchPress},
{ViewName: "branches", Key: 'c', Modifier: gocui.ModNone, Handler: handleCheckoutByName}, {ViewName: "branches", Key: 'c', Modifier: gocui.ModNone, Handler: gui.handleCheckoutByName},
{ViewName: "branches", Key: 'F', Modifier: gocui.ModNone, Handler: handleForceCheckout}, {ViewName: "branches", Key: 'F', Modifier: gocui.ModNone, Handler: gui.handleForceCheckout},
{ViewName: "branches", Key: 'n', Modifier: gocui.ModNone, Handler: handleNewBranch}, {ViewName: "branches", Key: 'n', Modifier: gocui.ModNone, Handler: gui.handleNewBranch},
{ViewName: "branches", Key: 'd', Modifier: gocui.ModNone, Handler: handleDeleteBranch}, {ViewName: "branches", Key: 'd', Modifier: gocui.ModNone, Handler: gui.handleDeleteBranch},
{ViewName: "branches", Key: 'm', Modifier: gocui.ModNone, Handler: handleMerge}, {ViewName: "branches", Key: 'm', Modifier: gocui.ModNone, Handler: gui.handleMerge},
{ViewName: "commits", Key: 's', Modifier: gocui.ModNone, Handler: handleCommitSquashDown}, {ViewName: "commits", Key: 's', Modifier: gocui.ModNone, Handler: gui.handleCommitSquashDown},
{ViewName: "commits", Key: 'r', Modifier: gocui.ModNone, Handler: handleRenameCommit}, {ViewName: "commits", Key: 'r', Modifier: gocui.ModNone, Handler: gui.handleRenameCommit},
{ViewName: "commits", Key: 'g', Modifier: gocui.ModNone, Handler: handleResetToCommit}, {ViewName: "commits", Key: 'g', Modifier: gocui.ModNone, Handler: gui.handleResetToCommit},
{ViewName: "commits", Key: 'f', Modifier: gocui.ModNone, Handler: handleCommitFixup}, {ViewName: "commits", Key: 'f', Modifier: gocui.ModNone, Handler: gui.handleCommitFixup},
{ViewName: "stash", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handleStashApply}, {ViewName: "stash", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: gui.handleStashApply},
{ViewName: "stash", Key: 'g', Modifier: gocui.ModNone, Handler: handleStashPop}, {ViewName: "stash", Key: 'g', Modifier: gocui.ModNone, Handler: gui.handleStashPop},
{ViewName: "stash", Key: 'd', Modifier: gocui.ModNone, Handler: handleStashDrop}, {ViewName: "stash", Key: 'd', Modifier: gocui.ModNone, Handler: gui.handleStashDrop},
{ViewName: "commitMessage", Key: gocui.KeyEnter, Modifier: gocui.ModNone, Handler: handleCommitConfirm}, {ViewName: "commitMessage", Key: gocui.KeyEnter, Modifier: gocui.ModNone, Handler: gui.handleCommitConfirm},
{ViewName: "commitMessage", Key: gocui.KeyEsc, Modifier: gocui.ModNone, Handler: handleCommitClose}, {ViewName: "commitMessage", Key: gocui.KeyEsc, Modifier: gocui.ModNone, Handler: gui.handleCommitClose},
{ViewName: "commitMessage", Key: gocui.KeyTab, Modifier: gocui.ModNone, Handler: handleNewlineCommitMessage}, {ViewName: "commitMessage", Key: gocui.KeyTab, Modifier: gocui.ModNone, Handler: gui.handleNewlineCommitMessage},
} }
// Would make these keybindings global but that interferes with editing // Would make these keybindings global but that interferes with editing
// input in the confirmation panel // input in the confirmation panel
for _, viewName := range []string{"files", "branches", "commits", "stash"} { for _, viewName := range []string{"files", "branches", "commits", "stash"} {
bindings = append(bindings, []Binding{ bindings = append(bindings, []Binding{
{ViewName: viewName, Key: gocui.KeyTab, Modifier: gocui.ModNone, Handler: nextView}, {ViewName: viewName, Key: gocui.KeyTab, Modifier: gocui.ModNone, Handler: gui.nextView},
{ViewName: viewName, Key: gocui.KeyArrowLeft, Modifier: gocui.ModNone, Handler: previousView}, {ViewName: viewName, Key: gocui.KeyArrowLeft, Modifier: gocui.ModNone, Handler: gui.previousView},
{ViewName: viewName, Key: gocui.KeyArrowRight, Modifier: gocui.ModNone, Handler: nextView}, {ViewName: viewName, Key: gocui.KeyArrowRight, Modifier: gocui.ModNone, Handler: gui.nextView},
{ViewName: viewName, Key: gocui.KeyArrowUp, Modifier: gocui.ModNone, Handler: cursorUp}, {ViewName: viewName, Key: gocui.KeyArrowUp, Modifier: gocui.ModNone, Handler: gui.cursorUp},
{ViewName: viewName, Key: gocui.KeyArrowDown, Modifier: gocui.ModNone, Handler: cursorDown}, {ViewName: viewName, Key: gocui.KeyArrowDown, Modifier: gocui.ModNone, Handler: gui.cursorDown},
{ViewName: viewName, Key: 'h', Modifier: gocui.ModNone, Handler: previousView}, {ViewName: viewName, Key: 'h', Modifier: gocui.ModNone, Handler: gui.previousView},
{ViewName: viewName, Key: 'l', Modifier: gocui.ModNone, Handler: nextView}, {ViewName: viewName, Key: 'l', Modifier: gocui.ModNone, Handler: gui.nextView},
{ViewName: viewName, Key: 'k', Modifier: gocui.ModNone, Handler: cursorUp}, {ViewName: viewName, Key: 'k', Modifier: gocui.ModNone, Handler: gui.cursorUp},
{ViewName: viewName, Key: 'j', Modifier: gocui.ModNone, Handler: cursorDown}, {ViewName: viewName, Key: 'j', Modifier: gocui.ModNone, Handler: gui.cursorDown},
}...) }...)
} }

260
pkg/gui/merge_panel.go Normal file
View File

@ -0,0 +1,260 @@
// though this panel is called the merge panel, it's really going to use the main panel. This may change in the future
package gui
import (
"bufio"
"bytes"
"io/ioutil"
"math"
"os"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
"github.com/jesseduffield/lazygit/pkg/utils"
)
func (gui *Gui) findConflicts(content string) ([]commands.Conflict, error) {
conflicts := make([]commands.Conflict, 0)
var newConflict commands.Conflict
for i, line := range utils.SplitLines(content) {
if line == "<<<<<<< HEAD" || line == "<<<<<<< MERGE_HEAD" || line == "<<<<<<< Updated upstream" {
newConflict = commands.Conflict{Start: i}
} else if line == "=======" {
newConflict.Middle = i
} else if strings.HasPrefix(line, ">>>>>>> ") {
newConflict.End = i
conflicts = append(conflicts, newConflict)
}
}
return conflicts, nil
}
func (gui *Gui) shiftConflict(conflicts []commands.Conflict) (commands.Conflict, []commands.Conflict) {
return conflicts[0], conflicts[1:]
}
func (gui *Gui) shouldHighlightLine(index int, conflict commands.Conflict, top bool) bool {
return (index >= conflict.Start && index <= conflict.Middle && top) || (index >= conflict.Middle && index <= conflict.End && !top)
}
func (gui *Gui) coloredConflictFile(content string, conflicts []commands.Conflict, conflictIndex int, conflictTop, hasFocus bool) (string, error) {
if len(conflicts) == 0 {
return content, nil
}
conflict, remainingConflicts := gui.shiftConflict(conflicts)
var outputBuffer bytes.Buffer
for i, line := range utils.SplitLines(content) {
colourAttr := color.FgWhite
if i == conflict.Start || i == conflict.Middle || i == conflict.End {
colourAttr = color.FgRed
}
colour := color.New(colourAttr)
if hasFocus && conflictIndex < len(conflicts) && conflicts[conflictIndex] == conflict && gui.shouldHighlightLine(i, conflict, conflictTop) {
colour.Add(color.Bold)
}
if i == conflict.End && len(remainingConflicts) > 0 {
conflict, remainingConflicts = gui.shiftConflict(remainingConflicts)
}
outputBuffer.WriteString(utils.ColoredStringDirect(line, colour) + "\n")
}
return outputBuffer.String(), nil
}
func (gui *Gui) handleSelectTop(g *gocui.Gui, v *gocui.View) error {
gui.State.ConflictTop = true
return gui.refreshMergePanel(g)
}
func (gui *Gui) handleSelectBottom(g *gocui.Gui, v *gocui.View) error {
gui.State.ConflictTop = false
return gui.refreshMergePanel(g)
}
func (gui *Gui) handleSelectNextConflict(g *gocui.Gui, v *gocui.View) error {
if gui.State.ConflictIndex >= len(gui.State.Conflicts)-1 {
return nil
}
gui.State.ConflictIndex++
return gui.refreshMergePanel(g)
}
func (gui *Gui) handleSelectPrevConflict(g *gocui.Gui, v *gocui.View) error {
if gui.State.ConflictIndex <= 0 {
return nil
}
gui.State.ConflictIndex--
return gui.refreshMergePanel(g)
}
func (gui *Gui) isIndexToDelete(i int, conflict commands.Conflict, pick string) bool {
return i == conflict.Middle ||
i == conflict.Start ||
i == conflict.End ||
pick != "both" &&
(pick == "bottom" && i > conflict.Start && i < conflict.Middle) ||
(pick == "top" && i > conflict.Middle && i < conflict.End)
}
func (gui *Gui) resolveConflict(g *gocui.Gui, conflict commands.Conflict, pick string) error {
gitFile, err := gui.getSelectedFile(g)
if err != nil {
return err
}
file, err := os.Open(gitFile.Name)
if err != nil {
return err
}
defer file.Close()
reader := bufio.NewReader(file)
output := ""
for i := 0; true; i++ {
line, err := reader.ReadString('\n')
if err != nil {
break
}
if !gui.isIndexToDelete(i, conflict, pick) {
output += line
}
}
gui.Log.Info(output)
return ioutil.WriteFile(gitFile.Name, []byte(output), 0644)
}
func (gui *Gui) pushFileSnapshot(g *gocui.Gui) error {
gitFile, err := gui.getSelectedFile(g)
if err != nil {
return err
}
content, err := gui.GitCommand.CatFile(gitFile.Name)
if err != nil {
return err
}
gui.State.EditHistory.Push(content)
return nil
}
func (gui *Gui) handlePopFileSnapshot(g *gocui.Gui, v *gocui.View) error {
if gui.State.EditHistory.Len() == 0 {
return nil
}
prevContent := gui.State.EditHistory.Pop().(string)
gitFile, err := gui.getSelectedFile(g)
if err != nil {
return err
}
ioutil.WriteFile(gitFile.Name, []byte(prevContent), 0644)
return gui.refreshMergePanel(g)
}
func (gui *Gui) handlePickHunk(g *gocui.Gui, v *gocui.View) error {
conflict := gui.State.Conflicts[gui.State.ConflictIndex]
gui.pushFileSnapshot(g)
pick := "bottom"
if gui.State.ConflictTop {
pick = "top"
}
err := gui.resolveConflict(g, conflict, pick)
if err != nil {
panic(err)
}
gui.refreshMergePanel(g)
return nil
}
func (gui *Gui) handlePickBothHunks(g *gocui.Gui, v *gocui.View) error {
conflict := gui.State.Conflicts[gui.State.ConflictIndex]
gui.pushFileSnapshot(g)
err := gui.resolveConflict(g, conflict, "both")
if err != nil {
panic(err)
}
return gui.refreshMergePanel(g)
}
func (gui *Gui) refreshMergePanel(g *gocui.Gui) error {
cat, err := gui.catSelectedFile(g)
if err != nil {
return err
}
gui.State.Conflicts, err = gui.findConflicts(cat)
if err != nil {
return err
}
if len(gui.State.Conflicts) == 0 {
return gui.handleCompleteMerge(g)
} else if gui.State.ConflictIndex > len(gui.State.Conflicts)-1 {
gui.State.ConflictIndex = len(gui.State.Conflicts) - 1
}
hasFocus := gui.currentViewName(g) == "main"
if hasFocus {
gui.renderMergeOptions(g)
}
content, err := gui.coloredConflictFile(cat, gui.State.Conflicts, gui.State.ConflictIndex, gui.State.ConflictTop, hasFocus)
if err != nil {
return err
}
if err := gui.scrollToConflict(g); err != nil {
return err
}
return gui.renderString(g, "main", content)
}
func (gui *Gui) scrollToConflict(g *gocui.Gui) error {
mainView, err := g.View("main")
if err != nil {
return err
}
if len(gui.State.Conflicts) == 0 {
return nil
}
conflict := gui.State.Conflicts[gui.State.ConflictIndex]
ox, _ := mainView.Origin()
_, height := mainView.Size()
conflictMiddle := (conflict.End + conflict.Start) / 2
newOriginY := int(math.Max(0, float64(conflictMiddle-(height/2))))
return mainView.SetOrigin(ox, newOriginY)
}
func (gui *Gui) switchToMerging(g *gocui.Gui) error {
gui.State.ConflictIndex = 0
gui.State.ConflictTop = true
_, err := g.SetCurrentView("main")
if err != nil {
return err
}
return gui.refreshMergePanel(g)
}
func (gui *Gui) renderMergeOptions(g *gocui.Gui) error {
return gui.renderOptionsMap(g, map[string]string{
"↑ ↓": "select hunk",
"← →": "navigate conflicts",
"space": "pick hunk",
"b": "pick both hunks",
"z": "undo",
})
}
func (gui *Gui) handleEscapeMerge(g *gocui.Gui, v *gocui.View) error {
filesView, err := g.View("files")
if err != nil {
return err
}
gui.refreshFiles(g)
return gui.switchFocus(g, v, filesView)
}
func (gui *Gui) handleCompleteMerge(g *gocui.Gui) error {
filesView, err := g.View("files")
if err != nil {
return err
}
gui.stageSelectedFile(g)
gui.refreshFiles(g)
return gui.switchFocus(g, nil, filesView)
}

94
pkg/gui/stash_panel.go Normal file
View File

@ -0,0 +1,94 @@
package gui
import (
"fmt"
"github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/commands"
)
func (gui *Gui) refreshStashEntries(g *gocui.Gui) error {
g.Update(func(g *gocui.Gui) error {
v, err := g.View("stash")
if err != nil {
panic(err)
}
gui.State.StashEntries = gui.GitCommand.GetStashEntries()
v.Clear()
for _, stashEntry := range gui.State.StashEntries {
fmt.Fprintln(v, stashEntry.DisplayString)
}
return gui.resetOrigin(v)
})
return nil
}
func (gui *Gui) getSelectedStashEntry(v *gocui.View) *commands.StashEntry {
if len(gui.State.StashEntries) == 0 {
return nil
}
lineNumber := gui.getItemPosition(v)
return &gui.State.StashEntries[lineNumber]
}
func (gui *Gui) renderStashOptions(g *gocui.Gui) error {
return gui.renderOptionsMap(g, map[string]string{
"space": "apply",
"g": "pop",
"d": "drop",
"← → ↑ ↓": "navigate",
})
}
func (gui *Gui) handleStashEntrySelect(g *gocui.Gui, v *gocui.View) error {
if err := gui.renderStashOptions(g); err != nil {
return err
}
go func() {
stashEntry := gui.getSelectedStashEntry(v)
if stashEntry == nil {
gui.renderString(g, "main", "No stash entries")
return
}
diff, _ := gui.GitCommand.GetStashEntryDiff(stashEntry.Index)
gui.renderString(g, "main", diff)
}()
return nil
}
func (gui *Gui) handleStashApply(g *gocui.Gui, v *gocui.View) error {
return gui.stashDo(g, v, "apply")
}
func (gui *Gui) handleStashPop(g *gocui.Gui, v *gocui.View) error {
return gui.stashDo(g, v, "pop")
}
func (gui *Gui) handleStashDrop(g *gocui.Gui, v *gocui.View) error {
return gui.createConfirmationPanel(g, v, "Stash drop", "Are you sure you want to drop this stash entry?", func(g *gocui.Gui, v *gocui.View) error {
return gui.stashDo(g, v, "drop")
}, nil)
}
func (gui *Gui) stashDo(g *gocui.Gui, v *gocui.View, method string) error {
stashEntry := gui.getSelectedStashEntry(v)
if stashEntry == nil {
return gui.createErrorPanel(g, "No stash to "+method)
}
if output, err := gui.GitCommand.StashDo(stashEntry.Index, method); err != nil {
gui.createErrorPanel(g, output)
}
gui.refreshStashEntries(g)
return gui.refreshFiles(g)
}
func (gui *Gui) handleStashSave(g *gocui.Gui, filesView *gocui.View) error {
gui.createPromptPanel(g, filesView, "Stash changes", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gui.GitCommand.StashSave(gui.trimmedContent(v)); err != nil {
gui.createErrorPanel(g, output)
}
gui.refreshStashEntries(g)
return gui.refreshFiles(g)
})
return nil
}

19
status_panel.go → pkg/gui/status_panel.go
View File

@ -1,13 +1,14 @@
package main package gui
import ( import (
"fmt" "fmt"
"github.com/fatih/color" "github.com/fatih/color"
"github.com/jesseduffield/gocui" "github.com/jesseduffield/gocui"
"github.com/jesseduffield/lazygit/pkg/utils"
) )
func refreshStatus(g *gocui.Gui) error { func (gui *Gui) refreshStatus(g *gocui.Gui) error {
v, err := g.View("status") v, err := g.View("status")
if err != nil { if err != nil {
panic(err) panic(err)
@ -17,22 +18,22 @@ func refreshStatus(g *gocui.Gui) error {
// contents end up cleared // contents end up cleared
g.Update(func(*gocui.Gui) error { g.Update(func(*gocui.Gui) error {
v.Clear() v.Clear()
pushables, pullables := gitUpstreamDifferenceCount() pushables, pullables := gui.GitCommand.UpstreamDifferenceCount()
fmt.Fprint(v, "↑"+pushables+"↓"+pullables) fmt.Fprint(v, "↑"+pushables+"↓"+pullables)
branches := state.Branches branches := gui.State.Branches
if err := updateHasMergeConflictStatus(); err != nil { if err := gui.updateHasMergeConflictStatus(); err != nil {
return err return err
} }
if state.HasMergeConflicts { if gui.State.HasMergeConflicts {
fmt.Fprint(v, coloredString(" (merging)", color.FgYellow)) fmt.Fprint(v, utils.ColoredString(" (merging)", color.FgYellow))
} }
if len(branches) == 0 { if len(branches) == 0 {
return nil return nil
} }
branch := branches[0] branch := branches[0]
name := coloredString(branch.Name, branch.getColor()) name := utils.ColoredString(branch.Name, branch.GetColor())
repo := getCurrentProject() repo := utils.GetCurrentRepoName()
fmt.Fprint(v, " "+repo+" → "+name) fmt.Fprint(v, " "+repo+" → "+name)
return nil return nil
}) })

94
view_helpers.go → pkg/gui/view_helpers.go
View File

@ -1,4 +1,4 @@
package main package gui
import ( import (
"fmt" "fmt"
@ -11,14 +11,14 @@ import (
var cyclableViews = []string{"files", "branches", "commits", "stash"} var cyclableViews = []string{"files", "branches", "commits", "stash"}
func refreshSidePanels(g *gocui.Gui) error { func (gui *Gui) refreshSidePanels(g *gocui.Gui) error {
refreshBranches(g) gui.refreshBranches(g)
refreshFiles(g) gui.refreshFiles(g)
refreshCommits(g) gui.refreshCommits(g)
return nil return nil
} }
func nextView(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) nextView(g *gocui.Gui, v *gocui.View) error {
var focusedViewName string var focusedViewName string
if v == nil || v.Name() == cyclableViews[len(cyclableViews)-1] { if v == nil || v.Name() == cyclableViews[len(cyclableViews)-1] {
focusedViewName = cyclableViews[0] focusedViewName = cyclableViews[0]
@ -29,7 +29,7 @@ func nextView(g *gocui.Gui, v *gocui.View) error {
break break
} }
if i == len(cyclableViews)-1 { if i == len(cyclableViews)-1 {
devLog(v.Name() + " is not in the list of views") gui.Log.Info(v.Name() + " is not in the list of views")
return nil return nil
} }
} }
@ -38,10 +38,10 @@ func nextView(g *gocui.Gui, v *gocui.View) error {
if err != nil { if err != nil {
panic(err) panic(err)
} }
return switchFocus(g, v, focusedView) return gui.switchFocus(g, v, focusedView)
} }
func previousView(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) previousView(g *gocui.Gui, v *gocui.View) error {
var focusedViewName string var focusedViewName string
if v == nil || v.Name() == cyclableViews[0] { if v == nil || v.Name() == cyclableViews[0] {
focusedViewName = cyclableViews[len(cyclableViews)-1] focusedViewName = cyclableViews[len(cyclableViews)-1]
@ -52,7 +52,7 @@ func previousView(g *gocui.Gui, v *gocui.View) error {
break break
} }
if i == len(cyclableViews)-1 { if i == len(cyclableViews)-1 {
devLog(v.Name() + " is not in the list of views") gui.Log.Info(v.Name() + " is not in the list of views")
return nil return nil
} }
} }
@ -61,69 +61,70 @@ func previousView(g *gocui.Gui, v *gocui.View) error {
if err != nil { if err != nil {
panic(err) panic(err)
} }
return switchFocus(g, v, focusedView) return gui.switchFocus(g, v, focusedView)
} }
func newLineFocused(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) newLineFocused(g *gocui.Gui, v *gocui.View) error {
mainView, _ := g.View("main") mainView, _ := g.View("main")
mainView.SetOrigin(0, 0) mainView.SetOrigin(0, 0)
switch v.Name() { switch v.Name() {
case "files": case "files":
return handleFileSelect(g, v) return gui.handleFileSelect(g, v)
case "branches": case "branches":
return handleBranchSelect(g, v) return gui.handleBranchSelect(g, v)
case "confirmation": case "confirmation":
return nil return nil
case "commitMessage": case "commitMessage":
return handleCommitFocused(g, v) return gui.handleCommitFocused(g, v)
case "main": case "main":
// TODO: pull this out into a 'view focused' function // TODO: pull this out into a 'view focused' function
refreshMergePanel(g) gui.refreshMergePanel(g)
v.Highlight = false v.Highlight = false
return nil return nil
case "commits": case "commits":
return handleCommitSelect(g, v) return gui.handleCommitSelect(g, v)
case "stash": case "stash":
return handleStashEntrySelect(g, v) return gui.handleStashEntrySelect(g, v)
default: default:
panic("No view matching newLineFocused switch statement") panic("No view matching newLineFocused switch statement")
} }
} }
func returnFocus(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) returnFocus(g *gocui.Gui, v *gocui.View) error {
previousView, err := g.View(state.PreviousView) previousView, err := g.View(gui.State.PreviousView)
if err != nil { if err != nil {
panic(err) panic(err)
} }
return switchFocus(g, v, previousView) return gui.switchFocus(g, v, previousView)
} }
// pass in oldView = nil if you don't want to be able to return to your old view // pass in oldView = nil if you don't want to be able to return to your old view
func switchFocus(g *gocui.Gui, oldView, newView *gocui.View) error { func (gui *Gui) switchFocus(g *gocui.Gui, oldView, newView *gocui.View) error {
// we assume we'll never want to return focus to a confirmation panel i.e. // we assume we'll never want to return focus to a confirmation panel i.e.
// we should never stack confirmation panels // we should never stack confirmation panels
if oldView != nil && oldView.Name() != "confirmation" { if oldView != nil && oldView.Name() != "confirmation" {
oldView.Highlight = false oldView.Highlight = false
devLog("setting previous view to:", oldView.Name()) gui.Log.Info("setting previous view to:", oldView.Name())
state.PreviousView = oldView.Name() gui.State.PreviousView = oldView.Name()
} }
newView.Highlight = true newView.Highlight = true
devLog("new focused view is " + newView.Name()) gui.Log.Info("new focused view is " + newView.Name())
if _, err := g.SetCurrentView(newView.Name()); err != nil { if _, err := g.SetCurrentView(newView.Name()); err != nil {
return err return err
} }
g.Cursor = newView.Editable g.Cursor = newView.Editable
return newLineFocused(g, newView) return gui.newLineFocused(g, newView)
} }
func getItemPosition(v *gocui.View) int { func (gui *Gui) getItemPosition(v *gocui.View) int {
gui.correctCursor(v)
_, cy := v.Cursor() _, cy := v.Cursor()
_, oy := v.Origin() _, oy := v.Origin()
return oy + cy return oy + cy
} }
func cursorUp(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) cursorUp(g *gocui.Gui, v *gocui.View) error {
// swallowing cursor movements in main // swallowing cursor movements in main
// TODO: pull this out // TODO: pull this out
if v == nil || v.Name() == "main" { if v == nil || v.Name() == "main" {
@ -138,11 +139,11 @@ func cursorUp(g *gocui.Gui, v *gocui.View) error {
} }
} }
newLineFocused(g, v) gui.newLineFocused(g, v)
return nil return nil
} }
func cursorDown(g *gocui.Gui, v *gocui.View) error { func (gui *Gui) cursorDown(g *gocui.Gui, v *gocui.View) error {
// swallowing cursor movements in main // swallowing cursor movements in main
// TODO: pull this out // TODO: pull this out
if v == nil || v.Name() == "main" { if v == nil || v.Name() == "main" {
@ -159,19 +160,19 @@ func cursorDown(g *gocui.Gui, v *gocui.View) error {
} }
} }
newLineFocused(g, v) gui.newLineFocused(g, v)
return nil return nil
} }
func resetOrigin(v *gocui.View) error { func (gui *Gui) resetOrigin(v *gocui.View) error {
if err := v.SetCursor(0, 0); err != nil { if err := v.SetCursor(0, 0); err != nil {
return err return err
} }
return v.SetOrigin(0, 0) return v.SetOrigin(0, 0)
} }
// if the cursor down past the last item, move it up one // if the cursor down past the last item, move it to the last line
func correctCursor(v *gocui.View) error { func (gui *Gui) correctCursor(v *gocui.View) error {
cx, cy := v.Cursor() cx, cy := v.Cursor()
_, oy := v.Origin() _, oy := v.Origin()
lineCount := len(v.BufferLines()) - 2 lineCount := len(v.BufferLines()) - 2
@ -181,7 +182,7 @@ func correctCursor(v *gocui.View) error {
return nil return nil
} }
func renderString(g *gocui.Gui, viewName, s string) error { func (gui *Gui) renderString(g *gocui.Gui, viewName, s string) error {
g.Update(func(*gocui.Gui) error { g.Update(func(*gocui.Gui) error {
v, err := g.View(viewName) v, err := g.View(viewName)
// just in case the view disappeared as this function was called, we'll // just in case the view disappeared as this function was called, we'll
@ -197,7 +198,7 @@ func renderString(g *gocui.Gui, viewName, s string) error {
return nil return nil
} }
func optionsMapToString(optionsMap map[string]string) string { func (gui *Gui) optionsMapToString(optionsMap map[string]string) string {
optionsArray := make([]string, 0) optionsArray := make([]string, 0)
for key, description := range optionsMap { for key, description := range optionsMap {
optionsArray = append(optionsArray, key+": "+description) optionsArray = append(optionsArray, key+": "+description)
@ -206,11 +207,11 @@ func optionsMapToString(optionsMap map[string]string) string {
return strings.Join(optionsArray, ", ") return strings.Join(optionsArray, ", ")
} }
func renderOptionsMap(g *gocui.Gui, optionsMap map[string]string) error { func (gui *Gui) renderOptionsMap(g *gocui.Gui, optionsMap map[string]string) error {
return renderString(g, "options", optionsMapToString(optionsMap)) return gui.renderString(g, "options", gui.optionsMapToString(optionsMap))
} }
func loader() string { func (gui *Gui) loader() string {
characters := "|/-\\" characters := "|/-\\"
now := time.Now() now := time.Now()
nanos := now.UnixNano() nanos := now.UnixNano()
@ -219,17 +220,26 @@ func loader() string {
} }
// TODO: refactor properly // TODO: refactor properly
func getFilesView(g *gocui.Gui) *gocui.View { func (gui *Gui) getFilesView(g *gocui.Gui) *gocui.View {
v, _ := g.View("files") v, _ := g.View("files")
return v return v
} }
func getCommitsView(g *gocui.Gui) *gocui.View { func (gui *Gui) getCommitsView(g *gocui.Gui) *gocui.View {
v, _ := g.View("commits") v, _ := g.View("commits")
return v return v
} }
func getCommitMessageView(g *gocui.Gui) *gocui.View { func (gui *Gui) getCommitMessageView(g *gocui.Gui) *gocui.View {
v, _ := g.View("commitMessage") v, _ := g.View("commitMessage")
return v return v
} }
func (gui *Gui) trimmedContent(v *gocui.View) string {
return strings.TrimSpace(v.Buffer())
}
func (gui *Gui) currentViewName(g *gocui.Gui) string {
currentView := g.CurrentView()
return currentView.Name()
}

65
pkg/utils/utils.go Normal file
View File

@ -0,0 +1,65 @@
package utils
import (
"fmt"
"log"
"os"
"path/filepath"
"strings"
"github.com/fatih/color"
)
// SplitLines takes a multiline string and splits it on newlines
// currently we are also stripping \r's which may have adverse effects for
// windows users (but no issues have been raised yet)
func SplitLines(multilineString string) []string {
multilineString = strings.Replace(multilineString, "\r", "", -1)
if multilineString == "" || multilineString == "\n" {
return make([]string, 0)
}
lines := strings.Split(multilineString, "\n")
if lines[len(lines)-1] == "" {
return lines[:len(lines)-1]
}
return lines
}
// WithPadding pads a string as much as you want
func WithPadding(str string, padding int) string {
if padding-len(str) < 0 {
return str
}
return str + strings.Repeat(" ", padding-len(str))
}
// ColoredString takes a string and a colour attribute and returns a colored
// string with that attribute
func ColoredString(str string, colorAttribute color.Attribute) string {
colour := color.New(colorAttribute)
return ColoredStringDirect(str, colour)
}
// ColoredStringDirect used for aggregating a few color attributes rather than
// just sending a single one
func ColoredStringDirect(str string, colour *color.Color) string {
return colour.SprintFunc()(fmt.Sprint(str))
}
// GetCurrentRepoName gets the repo's base name
func GetCurrentRepoName() string {
pwd, err := os.Getwd()
if err != nil {
log.Fatalln(err.Error())
}
return filepath.Base(pwd)
}
// TrimTrailingNewline - Trims the trailing newline
// TODO: replace with `chomp` after refactor
func TrimTrailingNewline(str string) string {
if strings.HasSuffix(str, "\n") {
return str[:len(str)-1]
}
return str
}

93
stash_panel.go
View File

@ -1,93 +0,0 @@
package main
import (
"fmt"
"github.com/jesseduffield/gocui"
)
func refreshStashEntries(g *gocui.Gui) error {
g.Update(func(g *gocui.Gui) error {
v, err := g.View("stash")
if err != nil {
panic(err)
}
state.StashEntries = getGitStashEntries()
v.Clear()
for _, stashEntry := range state.StashEntries {
fmt.Fprintln(v, stashEntry.DisplayString)
}
return resetOrigin(v)
})
return nil
}
func getSelectedStashEntry(v *gocui.View) *StashEntry {
if len(state.StashEntries) == 0 {
return nil
}
lineNumber := getItemPosition(v)
return &state.StashEntries[lineNumber]
}
func renderStashOptions(g *gocui.Gui) error {
return renderOptionsMap(g, map[string]string{
"space": "apply",
"g": "pop",
"d": "drop",
"← → ↑ ↓": "navigate",
})
}
func handleStashEntrySelect(g *gocui.Gui, v *gocui.View) error {
if err := renderStashOptions(g); err != nil {
return err
}
go func() {
stashEntry := getSelectedStashEntry(v)
if stashEntry == nil {
renderString(g, "main", "No stash entries")
return
}
diff, _ := getStashEntryDiff(stashEntry.Index)
renderString(g, "main", diff)
}()
return nil
}
func handleStashApply(g *gocui.Gui, v *gocui.View) error {
return stashDo(g, v, "apply")
}
func handleStashPop(g *gocui.Gui, v *gocui.View) error {
return stashDo(g, v, "pop")
}
func handleStashDrop(g *gocui.Gui, v *gocui.View) error {
return createConfirmationPanel(g, v, "Stash drop", "Are you sure you want to drop this stash entry?", func(g *gocui.Gui, v *gocui.View) error {
return stashDo(g, v, "drop")
}, nil)
}
func stashDo(g *gocui.Gui, v *gocui.View, method string) error {
stashEntry := getSelectedStashEntry(v)
if stashEntry == nil {
return createErrorPanel(g, "No stash to "+method)
}
if output, err := gitStashDo(stashEntry.Index, method); err != nil {
createErrorPanel(g, output)
}
refreshStashEntries(g)
return refreshFiles(g)
}
func handleStashSave(g *gocui.Gui, filesView *gocui.View) error {
createPromptPanel(g, filesView, "Stash changes", func(g *gocui.Gui, v *gocui.View) error {
if output, err := gitStashSave(trimmedContent(v)); err != nil {
createErrorPanel(g, output)
}
refreshStashEntries(g)
return refreshFiles(g)
})
return nil
}

2
test/repos/pre_commit_hook.sh
View File

@ -2,7 +2,7 @@
set -ex; rm -rf repo; mkdir repo; cd repo set -ex; rm -rf repo; mkdir repo; cd repo
git init git init
cp ../pre-commit .git/hooks/pre-commit cp ../extras/pre-commit .git/hooks/pre-commit
chmod +x .git/hooks/pre-commit chmod +x .git/hooks/pre-commit
echo "file" > file echo "file" > file

54
utils.go
View File

@ -1,54 +0,0 @@
package main
import (
"fmt"
"log"
"os"
"path/filepath"
"strings"
"github.com/fatih/color"
"github.com/jesseduffield/gocui"
)
func splitLines(multilineString string) []string {
multilineString = strings.Replace(multilineString, "\r", "", -1)
if multilineString == "" || multilineString == "\n" {
return make([]string, 0)
}
lines := strings.Split(multilineString, "\n")
if lines[len(lines)-1] == "" {
return lines[:len(lines)-1]
}
return lines
}
func trimmedContent(v *gocui.View) string {
return strings.TrimSpace(v.Buffer())
}
func withPadding(str string, padding int) string {
if padding-len(str) < 0 {
return str
}
return str + strings.Repeat(" ", padding-len(str))
}
func coloredString(str string, colorAttribute color.Attribute) string {
colour := color.New(colorAttribute)
return coloredStringDirect(str, colour)
}
// used for aggregating a few color attributes rather than just sending a single one
func coloredStringDirect(str string, colour *color.Color) string {
return colour.SprintFunc()(fmt.Sprint(str))
}
// used to get the project name
func getCurrentProject() string {
pwd, err := os.Getwd()
if err != nil {
log.Fatalln(err.Error())
}
return filepath.Base(pwd)
}

21
vendor/github.com/Sirupsen/logrus/LICENSE generated vendored Normal file
View File

@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2014 Simon Eskildsen
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

64
vendor/github.com/Sirupsen/logrus/alt_exit.go generated vendored Normal file
View File

@ -0,0 +1,64 @@
package logrus
// The following code was sourced and modified from the
// https://github.com/tebeka/atexit package governed by the following license:
//
// Copyright (c) 2012 Miki Tebeka <miki.tebeka@gmail.com>.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import (
"fmt"
"os"
)
var handlers = []func(){}
func runHandler(handler func()) {
defer func() {
if err := recover(); err != nil {
fmt.Fprintln(os.Stderr, "Error: Logrus exit handler error:", err)
}
}()
handler()
}
func runHandlers() {
for _, handler := range handlers {
runHandler(handler)
}
}
// Exit runs all the Logrus atexit handlers and then terminates the program using os.Exit(code)
func Exit(code int) {
runHandlers()
os.Exit(code)
}
// RegisterExitHandler adds a Logrus Exit handler, call logrus.Exit to invoke
// all handlers. The handlers will also be invoked when any Fatal log entry is
// made.
//
// This method is useful when a caller wishes to use logrus to log a fatal
// message but also needs to gracefully shutdown. An example usecase could be
// closing database connections, or sending a alert that the application is
// closing.
func RegisterExitHandler(handler func()) {
handlers = append(handlers, handler)
}

26
vendor/github.com/Sirupsen/logrus/doc.go generated vendored Normal file
View File

@ -0,0 +1,26 @@
/*
Package logrus is a structured logger for Go, completely API compatible with the standard library logger.
The simplest way to use Logrus is simply the package-level exported logger:
package main
import (
log "github.com/sirupsen/logrus"
)
func main() {
log.WithFields(log.Fields{
"animal": "walrus",
"number": 1,
"size": 10,
}).Info("A walrus appears")
}
Output:
time="2015-09-07T08:48:33Z" level=info msg="A walrus appears" animal=walrus number=1 size=10
For a full guide visit https://github.com/sirupsen/logrus
*/
package logrus

300
vendor/github.com/Sirupsen/logrus/entry.go generated vendored Normal file
View File

@ -0,0 +1,300 @@
package logrus
import (
"bytes"
"fmt"
"os"
"sync"
"time"
)
var bufferPool *sync.Pool
func init() {
bufferPool = &sync.Pool{
New: func() interface{} {
return new(bytes.Buffer)
},
}
}
// Defines the key when adding errors using WithError.
var ErrorKey = "error"
// An entry is the final or intermediate Logrus logging entry. It contains all
// the fields passed with WithField{,s}. It's finally logged when Debug, Info,
// Warn, Error, Fatal or Panic is called on it. These objects can be reused and
// passed around as much as you wish to avoid field duplication.
type Entry struct {
Logger *Logger
// Contains all the fields set by the user.
Data Fields
// Time at which the log entry was created
Time time.Time
// Level the log entry was logged at: Debug, Info, Warn, Error, Fatal or Panic
// This field will be set on entry firing and the value will be equal to the one in Logger struct field.
Level Level
// Message passed to Debug, Info, Warn, Error, Fatal or Panic
Message string
// When formatter is called in entry.log(), an Buffer may be set to entry
Buffer *bytes.Buffer
}
func NewEntry(logger *Logger) *Entry {
return &Entry{
Logger: logger,
// Default is five fields, give a little extra room
Data: make(Fields, 5),
}
}
// Returns the string representation from the reader and ultimately the
// formatter.
func (entry *Entry) String() (string, error) {
serialized, err := entry.Logger.Formatter.Format(entry)
if err != nil {
return "", err
}
str := string(serialized)
return str, nil
}
// Add an error as single field (using the key defined in ErrorKey) to the Entry.
func (entry *Entry) WithError(err error) *Entry {
return entry.WithField(ErrorKey, err)
}
// Add a single field to the Entry.
func (entry *Entry) WithField(key string, value interface{}) *Entry {
return entry.WithFields(Fields{key: value})
}
// Add a map of fields to the Entry.
func (entry *Entry) WithFields(fields Fields) *Entry {
data := make(Fields, len(entry.Data)+len(fields))
for k, v := range entry.Data {
data[k] = v
}
for k, v := range fields {
data[k] = v
}
return &Entry{Logger: entry.Logger, Data: data, Time: entry.Time}
}
// Overrides the time of the Entry.
func (entry *Entry) WithTime(t time.Time) *Entry {
return &Entry{Logger: entry.Logger, Data: entry.Data, Time: t}
}
// This function is not declared with a pointer value because otherwise
// race conditions will occur when using multiple goroutines
func (entry Entry) log(level Level, msg string) {
var buffer *bytes.Buffer
// Default to now, but allow users to override if they want.
//
// We don't have to worry about polluting future calls to Entry#log()
// with this assignment because this function is declared with a
// non-pointer receiver.
if entry.Time.IsZero() {
entry.Time = time.Now()
}
entry.Level = level
entry.Message = msg
entry.fireHooks()
buffer = bufferPool.Get().(*bytes.Buffer)
buffer.Reset()
defer bufferPool.Put(buffer)
entry.Buffer = buffer
entry.write()
entry.Buffer = nil
// To avoid Entry#log() returning a value that only would make sense for
// panic() to use in Entry#Panic(), we avoid the allocation by checking
// directly here.
if level <= PanicLevel {
panic(&entry)
}
}
func (entry *Entry) fireHooks() {
entry.Logger.mu.Lock()
defer entry.Logger.mu.Unlock()
err := entry.Logger.Hooks.Fire(entry.Level, entry)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to fire hook: %v\n", err)
}
}
func (entry *Entry) write() {
serialized, err := entry.Logger.Formatter.Format(entry)
entry.Logger.mu.Lock()
defer entry.Logger.mu.Unlock()
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to obtain reader, %v\n", err)
} else {
_, err = entry.Logger.Out.Write(serialized)
if err != nil {
fmt.Fprintf(os.Stderr, "Failed to write to log, %v\n", err)
}
}
}
func (entry *Entry) Debug(args ...interface{}) {
if entry.Logger.level() >= DebugLevel {
entry.log(DebugLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Print(args ...interface{}) {
entry.Info(args...)
}
func (entry *Entry) Info(args ...interface{}) {
if entry.Logger.level() >= InfoLevel {
entry.log(InfoLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warn(args ...interface{}) {
if entry.Logger.level() >= WarnLevel {
entry.log(WarnLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Warning(args ...interface{}) {
entry.Warn(args...)
}
func (entry *Entry) Error(args ...interface{}) {
if entry.Logger.level() >= ErrorLevel {
entry.log(ErrorLevel, fmt.Sprint(args...))
}
}
func (entry *Entry) Fatal(args ...interface{}) {
if entry.Logger.level() >= FatalLevel {
entry.log(FatalLevel, fmt.Sprint(args...))
}
Exit(1)
}
func (entry *Entry) Panic(args ...interface{}) {
if entry.Logger.level() >= PanicLevel {
entry.log(PanicLevel, fmt.Sprint(args...))
}
panic(fmt.Sprint(args...))
}
// Entry Printf family functions
func (entry *Entry) Debugf(format string, args ...interface{}) {
if entry.Logger.level() >= DebugLevel {
entry.Debug(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Infof(format string, args ...interface{}) {
if entry.Logger.level() >= InfoLevel {
entry.Info(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Printf(format string, args ...interface{}) {
entry.Infof(format, args...)
}
func (entry *Entry) Warnf(format string, args ...interface{}) {
if entry.Logger.level() >= WarnLevel {
entry.Warn(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Warningf(format string, args ...interface{}) {
entry.Warnf(format, args...)
}
func (entry *Entry) Errorf(format string, args ...interface{}) {
if entry.Logger.level() >= ErrorLevel {
entry.Error(fmt.Sprintf(format, args...))
}
}
func (entry *Entry) Fatalf(format string, args ...interface{}) {
if entry.Logger.level() >= FatalLevel {
entry.Fatal(fmt.Sprintf(format, args...))
}
Exit(1)
}
func (entry *Entry) Panicf(format string, args ...interface{}) {
if entry.Logger.level() >= PanicLevel {
entry.Panic(fmt.Sprintf(format, args...))
}
}
// Entry Println family functions
func (entry *Entry) Debugln(args ...interface{}) {
if entry.Logger.level() >= DebugLevel {
entry.Debug(entry.sprintlnn(args...))
}
}
func (entry *Entry) Infoln(args ...interface{}) {
if entry.Logger.level() >= InfoLevel {
entry.Info(entry.sprintlnn(args...))
}
}
func (entry *Entry) Println(args ...interface{}) {
entry.Infoln(args...)
}
func (entry *Entry) Warnln(args ...interface{}) {
if entry.Logger.level() >= WarnLevel {
entry.Warn(entry.sprintlnn(args...))
}
}
func (entry *Entry) Warningln(args ...interface{}) {
entry.Warnln(args...)
}
func (entry *Entry) Errorln(args ...interface{}) {
if entry.Logger.level() >= ErrorLevel {
entry.Error(entry.sprintlnn(args...))
}
}
func (entry *Entry) Fatalln(args ...interface{}) {
if entry.Logger.level() >= FatalLevel {
entry.Fatal(entry.sprintlnn(args...))
}
Exit(1)
}
func (entry *Entry) Panicln(args ...interface{}) {
if entry.Logger.level() >= PanicLevel {
entry.Panic(entry.sprintlnn(args...))
}
}
// Sprintlnn => Sprint no newline. This is to get the behavior of how
// fmt.Sprintln where spaces are always added between operands, regardless of
// their type. Instead of vendoring the Sprintln implementation to spare a
// string allocation, we do the simplest thing.
func (entry *Entry) sprintlnn(args ...interface{}) string {
msg := fmt.Sprintln(args...)
return msg[:len(msg)-1]
}

201
vendor/github.com/Sirupsen/logrus/exported.go generated vendored Normal file
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package logrus
import (
"io"
"time"
)
var (
// std is the name of the standard logger in stdlib `log`
std = New()
)
func StandardLogger() *Logger {
return std
}
// SetOutput sets the standard logger output.
func SetOutput(out io.Writer) {
std.SetOutput(out)
}
// SetFormatter sets the standard logger formatter.
func SetFormatter(formatter Formatter) {
std.mu.Lock()
defer std.mu.Unlock()
std.Formatter = formatter
}
// SetLevel sets the standard logger level.
func SetLevel(level Level) {
std.mu.Lock()
defer std.mu.Unlock()
std.SetLevel(level)
}
// GetLevel returns the standard logger level.
func GetLevel() Level {
std.mu.Lock()
defer std.mu.Unlock()
return std.level()
}
// AddHook adds a hook to the standard logger hooks.
func AddHook(hook Hook) {
std.mu.Lock()
defer std.mu.Unlock()
std.Hooks.Add(hook)
}
// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
func WithError(err error) *Entry {
return std.WithField(ErrorKey, err)
}
// WithField creates an entry from the standard logger and adds a field to
// it. If you want multiple fields, use `WithFields`.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithField(key string, value interface{}) *Entry {
return std.WithField(key, value)
}
// WithFields creates an entry from the standard logger and adds multiple
// fields to it. This is simply a helper for `WithField`, invoking it
// once for each field.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithFields(fields Fields) *Entry {
return std.WithFields(fields)
}
// WithTime creats an entry from the standard logger and overrides the time of
// logs generated with it.
//
// Note that it doesn't log until you call Debug, Print, Info, Warn, Fatal
// or Panic on the Entry it returns.
func WithTime(t time.Time) *Entry {
return std.WithTime(t)
}
// Debug logs a message at level Debug on the standard logger.
func Debug(args ...interface{}) {
std.Debug(args...)
}
// Print logs a message at level Info on the standard logger.
func Print(args ...interface{}) {
std.Print(args...)
}
// Info logs a message at level Info on the standard logger.
func Info(args ...interface{}) {
std.Info(args...)
}
// Warn logs a message at level Warn on the standard logger.
func Warn(args ...interface{}) {
std.Warn(args...)
}
// Warning logs a message at level Warn on the standard logger.
func Warning(args ...interface{}) {
std.Warning(args...)
}
// Error logs a message at level Error on the standard logger.
func Error(args ...interface{}) {
std.Error(args...)
}
// Panic logs a message at level Panic on the standard logger.
func Panic(args ...interface{}) {
std.Panic(args...)
}
// Fatal logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
func Fatal(args ...interface{}) {
std.Fatal(args...)
}
// Debugf logs a message at level Debug on the standard logger.
func Debugf(format string, args ...interface{}) {
std.Debugf(format, args...)
}
// Printf logs a message at level Info on the standard logger.
func Printf(format string, args ...interface{}) {
std.Printf(format, args...)
}
// Infof logs a message at level Info on the standard logger.
func Infof(format string, args ...interface{}) {
std.Infof(format, args...)
}
// Warnf logs a message at level Warn on the standard logger.
func Warnf(format string, args ...interface{}) {
std.Warnf(format, args...)
}
// Warningf logs a message at level Warn on the standard logger.
func Warningf(format string, args ...interface{}) {
std.Warningf(format, args...)
}
// Errorf logs a message at level Error on the standard logger.
func Errorf(format string, args ...interface{}) {
std.Errorf(format, args...)
}
// Panicf logs a message at level Panic on the standard logger.
func Panicf(format string, args ...interface{}) {
std.Panicf(format, args...)
}
// Fatalf logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
func Fatalf(format string, args ...interface{}) {
std.Fatalf(format, args...)
}
// Debugln logs a message at level Debug on the standard logger.
func Debugln(args ...interface{}) {
std.Debugln(args...)
}
// Println logs a message at level Info on the standard logger.
func Println(args ...interface{}) {
std.Println(args...)
}
// Infoln logs a message at level Info on the standard logger.
func Infoln(args ...interface{}) {
std.Infoln(args...)
}
// Warnln logs a message at level Warn on the standard logger.
func Warnln(args ...interface{}) {
std.Warnln(args...)
}
// Warningln logs a message at level Warn on the standard logger.
func Warningln(args ...interface{}) {
std.Warningln(args...)
}
// Errorln logs a message at level Error on the standard logger.
func Errorln(args ...interface{}) {
std.Errorln(args...)
}
// Panicln logs a message at level Panic on the standard logger.
func Panicln(args ...interface{}) {
std.Panicln(args...)
}
// Fatalln logs a message at level Fatal on the standard logger then the process will exit with status set to 1.
func Fatalln(args ...interface{}) {
std.Fatalln(args...)
}

51
vendor/github.com/Sirupsen/logrus/formatter.go generated vendored Normal file
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package logrus
import "time"
const defaultTimestampFormat = time.RFC3339
// The Formatter interface is used to implement a custom Formatter. It takes an
// `Entry`. It exposes all the fields, including the default ones:
//
// * `entry.Data["msg"]`. The message passed from Info, Warn, Error ..
// * `entry.Data["time"]`. The timestamp.
// * `entry.Data["level"]. The level the entry was logged at.
//
// Any additional fields added with `WithField` or `WithFields` are also in
// `entry.Data`. Format is expected to return an array of bytes which are then
// logged to `logger.Out`.
type Formatter interface {
Format(*Entry) ([]byte, error)
}
// This is to not silently overwrite `time`, `msg` and `level` fields when
// dumping it. If this code wasn't there doing:
//
// logrus.WithField("level", 1).Info("hello")
//
// Would just silently drop the user provided level. Instead with this code
// it'll logged as:
//
// {"level": "info", "fields.level": 1, "msg": "hello", "time": "..."}
//
// It's not exported because it's still using Data in an opinionated way. It's to
// avoid code duplication between the two default formatters.
func prefixFieldClashes(data Fields, fieldMap FieldMap) {
timeKey := fieldMap.resolve(FieldKeyTime)
if t, ok := data[timeKey]; ok {
data["fields."+timeKey] = t
delete(data, timeKey)
}
msgKey := fieldMap.resolve(FieldKeyMsg)
if m, ok := data[msgKey]; ok {
data["fields."+msgKey] = m
delete(data, msgKey)
}
levelKey := fieldMap.resolve(FieldKeyLevel)
if l, ok := data[levelKey]; ok {
data["fields."+levelKey] = l
delete(data, levelKey)
}
}

34
vendor/github.com/Sirupsen/logrus/hooks.go generated vendored Normal file
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package logrus
// A hook to be fired when logging on the logging levels returned from
// `Levels()` on your implementation of the interface. Note that this is not
// fired in a goroutine or a channel with workers, you should handle such
// functionality yourself if your call is non-blocking and you don't wish for
// the logging calls for levels returned from `Levels()` to block.
type Hook interface {
Levels() []Level
Fire(*Entry) error
}
// Internal type for storing the hooks on a logger instance.
type LevelHooks map[Level][]Hook
// Add a hook to an instance of logger. This is called with
// `log.Hooks.Add(new(MyHook))` where `MyHook` implements the `Hook` interface.
func (hooks LevelHooks) Add(hook Hook) {
for _, level := range hook.Levels() {
hooks[level] = append(hooks[level], hook)
}
}
// Fire all the hooks for the passed level. Used by `entry.log` to fire
// appropriate hooks for a log entry.
func (hooks LevelHooks) Fire(level Level, entry *Entry) error {
for _, hook := range hooks[level] {
if err := hook.Fire(entry); err != nil {
return err
}
}
return nil
}

89
vendor/github.com/Sirupsen/logrus/json_formatter.go generated vendored Normal file
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package logrus
import (
"encoding/json"
"fmt"
)
type fieldKey string
// FieldMap allows customization of the key names for default fields.
type FieldMap map[fieldKey]string
// Default key names for the default fields
const (
FieldKeyMsg = "msg"
FieldKeyLevel = "level"
FieldKeyTime = "time"
)
func (f FieldMap) resolve(key fieldKey) string {
if k, ok := f[key]; ok {
return k
}
return string(key)
}
// JSONFormatter formats logs into parsable json
type JSONFormatter struct {
// TimestampFormat sets the format used for marshaling timestamps.
TimestampFormat string
// DisableTimestamp allows disabling automatic timestamps in output
DisableTimestamp bool
// DataKey allows users to put all the log entry parameters into a nested dictionary at a given key.
DataKey string
// FieldMap allows users to customize the names of keys for default fields.
// As an example:
// formatter := &JSONFormatter{
// FieldMap: FieldMap{
// FieldKeyTime: "@timestamp",
// FieldKeyLevel: "@level",
// FieldKeyMsg: "@message",
// },
// }
FieldMap FieldMap
}
// Format renders a single log entry
func (f *JSONFormatter) Format(entry *Entry) ([]byte, error) {
data := make(Fields, len(entry.Data)+3)
for k, v := range entry.Data {
switch v := v.(type) {
case error:
// Otherwise errors are ignored by `encoding/json`
// https://github.com/sirupsen/logrus/issues/137
data[k] = v.Error()
default:
data[k] = v
}
}
if f.DataKey != "" {
newData := make(Fields, 4)
newData[f.DataKey] = data
data = newData
}
prefixFieldClashes(data, f.FieldMap)
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = defaultTimestampFormat
}
if !f.DisableTimestamp {
data[f.FieldMap.resolve(FieldKeyTime)] = entry.Time.Format(timestampFormat)
}
data[f.FieldMap.resolve(FieldKeyMsg)] = entry.Message
data[f.FieldMap.resolve(FieldKeyLevel)] = entry.Level.String()
serialized, err := json.Marshal(data)
if err != nil {
return nil, fmt.Errorf("Failed to marshal fields to JSON, %v", err)
}
return append(serialized, '\n'), nil
}

337
vendor/github.com/Sirupsen/logrus/logger.go generated vendored Normal file
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package logrus
import (
"io"
"os"
"sync"
"sync/atomic"
"time"
)
type Logger struct {
// The logs are `io.Copy`'d to this in a mutex. It's common to set this to a
// file, or leave it default which is `os.Stderr`. You can also set this to
// something more adventorous, such as logging to Kafka.
Out io.Writer
// Hooks for the logger instance. These allow firing events based on logging
// levels and log entries. For example, to send errors to an error tracking
// service, log to StatsD or dump the core on fatal errors.
Hooks LevelHooks
// All log entries pass through the formatter before logged to Out. The
// included formatters are `TextFormatter` and `JSONFormatter` for which
// TextFormatter is the default. In development (when a TTY is attached) it
// logs with colors, but to a file it wouldn't. You can easily implement your
// own that implements the `Formatter` interface, see the `README` or included
// formatters for examples.
Formatter Formatter
// The logging level the logger should log at. This is typically (and defaults
// to) `logrus.Info`, which allows Info(), Warn(), Error() and Fatal() to be
// logged.
Level Level
// Used to sync writing to the log. Locking is enabled by Default
mu MutexWrap
// Reusable empty entry
entryPool sync.Pool
}
type MutexWrap struct {
lock sync.Mutex
disabled bool
}
func (mw *MutexWrap) Lock() {
if !mw.disabled {
mw.lock.Lock()
}
}
func (mw *MutexWrap) Unlock() {
if !mw.disabled {
mw.lock.Unlock()
}
}
func (mw *MutexWrap) Disable() {
mw.disabled = true
}
// Creates a new logger. Configuration should be set by changing `Formatter`,
// `Out` and `Hooks` directly on the default logger instance. You can also just
// instantiate your own:
//
// var log = &Logger{
// Out: os.Stderr,
// Formatter: new(JSONFormatter),
// Hooks: make(LevelHooks),
// Level: logrus.DebugLevel,
// }
//
// It's recommended to make this a global instance called `log`.
func New() *Logger {
return &Logger{
Out: os.Stderr,
Formatter: new(TextFormatter),
Hooks: make(LevelHooks),
Level: InfoLevel,
}
}
func (logger *Logger) newEntry() *Entry {
entry, ok := logger.entryPool.Get().(*Entry)
if ok {
return entry
}
return NewEntry(logger)
}
func (logger *Logger) releaseEntry(entry *Entry) {
logger.entryPool.Put(entry)
}
// Adds a field to the log entry, note that it doesn't log until you call
// Debug, Print, Info, Warn, Error, Fatal or Panic. It only creates a log entry.
// If you want multiple fields, use `WithFields`.
func (logger *Logger) WithField(key string, value interface{}) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithField(key, value)
}
// Adds a struct of fields to the log entry. All it does is call `WithField` for
// each `Field`.
func (logger *Logger) WithFields(fields Fields) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithFields(fields)
}
// Add an error as single field to the log entry. All it does is call
// `WithError` for the given `error`.
func (logger *Logger) WithError(err error) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithError(err)
}
// Overrides the time of the log entry.
func (logger *Logger) WithTime(t time.Time) *Entry {
entry := logger.newEntry()
defer logger.releaseEntry(entry)
return entry.WithTime(t)
}
func (logger *Logger) Debugf(format string, args ...interface{}) {
if logger.level() >= DebugLevel {
entry := logger.newEntry()
entry.Debugf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Infof(format string, args ...interface{}) {
if logger.level() >= InfoLevel {
entry := logger.newEntry()
entry.Infof(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Printf(format string, args ...interface{}) {
entry := logger.newEntry()
entry.Printf(format, args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warnf(format string, args ...interface{}) {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Warningf(format string, args ...interface{}) {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Errorf(format string, args ...interface{}) {
if logger.level() >= ErrorLevel {
entry := logger.newEntry()
entry.Errorf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Fatalf(format string, args ...interface{}) {
if logger.level() >= FatalLevel {
entry := logger.newEntry()
entry.Fatalf(format, args...)
logger.releaseEntry(entry)
}
Exit(1)
}
func (logger *Logger) Panicf(format string, args ...interface{}) {
if logger.level() >= PanicLevel {
entry := logger.newEntry()
entry.Panicf(format, args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Debug(args ...interface{}) {
if logger.level() >= DebugLevel {
entry := logger.newEntry()
entry.Debug(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Info(args ...interface{}) {
if logger.level() >= InfoLevel {
entry := logger.newEntry()
entry.Info(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Print(args ...interface{}) {
entry := logger.newEntry()
entry.Info(args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warn(args ...interface{}) {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warn(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Warning(args ...interface{}) {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warn(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Error(args ...interface{}) {
if logger.level() >= ErrorLevel {
entry := logger.newEntry()
entry.Error(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Fatal(args ...interface{}) {
if logger.level() >= FatalLevel {
entry := logger.newEntry()
entry.Fatal(args...)
logger.releaseEntry(entry)
}
Exit(1)
}
func (logger *Logger) Panic(args ...interface{}) {
if logger.level() >= PanicLevel {
entry := logger.newEntry()
entry.Panic(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Debugln(args ...interface{}) {
if logger.level() >= DebugLevel {
entry := logger.newEntry()
entry.Debugln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Infoln(args ...interface{}) {
if logger.level() >= InfoLevel {
entry := logger.newEntry()
entry.Infoln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Println(args ...interface{}) {
entry := logger.newEntry()
entry.Println(args...)
logger.releaseEntry(entry)
}
func (logger *Logger) Warnln(args ...interface{}) {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Warningln(args ...interface{}) {
if logger.level() >= WarnLevel {
entry := logger.newEntry()
entry.Warnln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Errorln(args ...interface{}) {
if logger.level() >= ErrorLevel {
entry := logger.newEntry()
entry.Errorln(args...)
logger.releaseEntry(entry)
}
}
func (logger *Logger) Fatalln(args ...interface{}) {
if logger.level() >= FatalLevel {
entry := logger.newEntry()
entry.Fatalln(args...)
logger.releaseEntry(entry)
}
Exit(1)
}
func (logger *Logger) Panicln(args ...interface{}) {
if logger.level() >= PanicLevel {
entry := logger.newEntry()
entry.Panicln(args...)
logger.releaseEntry(entry)
}
}
//When file is opened with appending mode, it's safe to
//write concurrently to a file (within 4k message on Linux).
//In these cases user can choose to disable the lock.
func (logger *Logger) SetNoLock() {
logger.mu.Disable()
}
func (logger *Logger) level() Level {
return Level(atomic.LoadUint32((*uint32)(&logger.Level)))
}
func (logger *Logger) SetLevel(level Level) {
atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
}
func (logger *Logger) SetOutput(out io.Writer) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.Out = out
}
func (logger *Logger) AddHook(hook Hook) {
logger.mu.Lock()
defer logger.mu.Unlock()
logger.Hooks.Add(hook)
}

143
vendor/github.com/Sirupsen/logrus/logrus.go generated vendored Normal file
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@ -0,0 +1,143 @@
package logrus
import (
"fmt"
"log"
"strings"
)
// Fields type, used to pass to `WithFields`.
type Fields map[string]interface{}
// Level type
type Level uint32
// Convert the Level to a string. E.g. PanicLevel becomes "panic".
func (level Level) String() string {
switch level {
case DebugLevel:
return "debug"
case InfoLevel:
return "info"
case WarnLevel:
return "warning"
case ErrorLevel:
return "error"
case FatalLevel:
return "fatal"
case PanicLevel:
return "panic"
}
return "unknown"
}
// ParseLevel takes a string level and returns the Logrus log level constant.
func ParseLevel(lvl string) (Level, error) {
switch strings.ToLower(lvl) {
case "panic":
return PanicLevel, nil
case "fatal":
return FatalLevel, nil
case "error":
return ErrorLevel, nil
case "warn", "warning":
return WarnLevel, nil
case "info":
return InfoLevel, nil
case "debug":
return DebugLevel, nil
}
var l Level
return l, fmt.Errorf("not a valid logrus Level: %q", lvl)
}
// A constant exposing all logging levels
var AllLevels = []Level{
PanicLevel,
FatalLevel,
ErrorLevel,
WarnLevel,
InfoLevel,
DebugLevel,
}
// These are the different logging levels. You can set the logging level to log
// on your instance of logger, obtained with `logrus.New()`.
const (
// PanicLevel level, highest level of severity. Logs and then calls panic with the
// message passed to Debug, Info, ...
PanicLevel Level = iota
// FatalLevel level. Logs and then calls `os.Exit(1)`. It will exit even if the
// logging level is set to Panic.
FatalLevel
// ErrorLevel level. Logs. Used for errors that should definitely be noted.
// Commonly used for hooks to send errors to an error tracking service.
ErrorLevel
// WarnLevel level. Non-critical entries that deserve eyes.
WarnLevel
// InfoLevel level. General operational entries about what's going on inside the
// application.
InfoLevel
// DebugLevel level. Usually only enabled when debugging. Very verbose logging.
DebugLevel
)
// Won't compile if StdLogger can't be realized by a log.Logger
var (
_ StdLogger = &log.Logger{}
_ StdLogger = &Entry{}
_ StdLogger = &Logger{}
)
// StdLogger is what your logrus-enabled library should take, that way
// it'll accept a stdlib logger and a logrus logger. There's no standard
// interface, this is the closest we get, unfortunately.
type StdLogger interface {
Print(...interface{})
Printf(string, ...interface{})
Println(...interface{})
Fatal(...interface{})
Fatalf(string, ...interface{})
Fatalln(...interface{})
Panic(...interface{})
Panicf(string, ...interface{})
Panicln(...interface{})
}
// The FieldLogger interface generalizes the Entry and Logger types
type FieldLogger interface {
WithField(key string, value interface{}) *Entry
WithFields(fields Fields) *Entry
WithError(err error) *Entry
Debugf(format string, args ...interface{})
Infof(format string, args ...interface{})
Printf(format string, args ...interface{})
Warnf(format string, args ...interface{})
Warningf(format string, args ...interface{})
Errorf(format string, args ...interface{})
Fatalf(format string, args ...interface{})
Panicf(format string, args ...interface{})
Debug(args ...interface{})
Info(args ...interface{})
Print(args ...interface{})
Warn(args ...interface{})
Warning(args ...interface{})
Error(args ...interface{})
Fatal(args ...interface{})
Panic(args ...interface{})
Debugln(args ...interface{})
Infoln(args ...interface{})
Println(args ...interface{})
Warnln(args ...interface{})
Warningln(args ...interface{})
Errorln(args ...interface{})
Fatalln(args ...interface{})
Panicln(args ...interface{})
}

10
vendor/github.com/Sirupsen/logrus/terminal_bsd.go generated vendored Normal file
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@ -0,0 +1,10 @@
// +build darwin freebsd openbsd netbsd dragonfly
// +build !appengine,!gopherjs
package logrus
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TIOCGETA
type Termios unix.Termios

11
vendor/github.com/Sirupsen/logrus/terminal_check_appengine.go generated vendored Normal file
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@ -0,0 +1,11 @@
// +build appengine gopherjs
package logrus
import (
"io"
)
func checkIfTerminal(w io.Writer) bool {
return true
}

19
vendor/github.com/Sirupsen/logrus/terminal_check_notappengine.go generated vendored Normal file
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@ -0,0 +1,19 @@
// +build !appengine,!gopherjs
package logrus
import (
"io"
"os"
"golang.org/x/crypto/ssh/terminal"
)
func checkIfTerminal(w io.Writer) bool {
switch v := w.(type) {
case *os.File:
return terminal.IsTerminal(int(v.Fd()))
default:
return false
}
}

14
vendor/github.com/Sirupsen/logrus/terminal_linux.go generated vendored Normal file
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@ -0,0 +1,14 @@
// Based on ssh/terminal:
// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine,!gopherjs
package logrus
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TCGETS
type Termios unix.Termios

195
vendor/github.com/Sirupsen/logrus/text_formatter.go generated vendored Normal file
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@ -0,0 +1,195 @@
package logrus
import (
"bytes"
"fmt"
"sort"
"strings"
"sync"
"time"
)
const (
nocolor = 0
red = 31
green = 32
yellow = 33
blue = 36
gray = 37
)
var (
baseTimestamp time.Time
emptyFieldMap FieldMap
)
func init() {
baseTimestamp = time.Now()
}
// TextFormatter formats logs into text
type TextFormatter struct {
// Set to true to bypass checking for a TTY before outputting colors.
ForceColors bool
// Force disabling colors.
DisableColors bool
// Disable timestamp logging. useful when output is redirected to logging
// system that already adds timestamps.
DisableTimestamp bool
// Enable logging the full timestamp when a TTY is attached instead of just
// the time passed since beginning of execution.
FullTimestamp bool
// TimestampFormat to use for display when a full timestamp is printed
TimestampFormat string
// The fields are sorted by default for a consistent output. For applications
// that log extremely frequently and don't use the JSON formatter this may not
// be desired.
DisableSorting bool
// Disables the truncation of the level text to 4 characters.
DisableLevelTruncation bool
// QuoteEmptyFields will wrap empty fields in quotes if true
QuoteEmptyFields bool
// Whether the logger's out is to a terminal
isTerminal bool
// FieldMap allows users to customize the names of keys for default fields.
// As an example:
// formatter := &TextFormatter{
// FieldMap: FieldMap{
// FieldKeyTime: "@timestamp",
// FieldKeyLevel: "@level",
// FieldKeyMsg: "@message"}}
FieldMap FieldMap
sync.Once
}
func (f *TextFormatter) init(entry *Entry) {
if entry.Logger != nil {
f.isTerminal = checkIfTerminal(entry.Logger.Out)
}
}
// Format renders a single log entry
func (f *TextFormatter) Format(entry *Entry) ([]byte, error) {
prefixFieldClashes(entry.Data, f.FieldMap)
keys := make([]string, 0, len(entry.Data))
for k := range entry.Data {
keys = append(keys, k)
}
if !f.DisableSorting {
sort.Strings(keys)
}
var b *bytes.Buffer
if entry.Buffer != nil {
b = entry.Buffer
} else {
b = &bytes.Buffer{}
}
f.Do(func() { f.init(entry) })
isColored := (f.ForceColors || f.isTerminal) && !f.DisableColors
timestampFormat := f.TimestampFormat
if timestampFormat == "" {
timestampFormat = defaultTimestampFormat
}
if isColored {
f.printColored(b, entry, keys, timestampFormat)
} else {
if !f.DisableTimestamp {
f.appendKeyValue(b, f.FieldMap.resolve(FieldKeyTime), entry.Time.Format(timestampFormat))
}
f.appendKeyValue(b, f.FieldMap.resolve(FieldKeyLevel), entry.Level.String())
if entry.Message != "" {
f.appendKeyValue(b, f.FieldMap.resolve(FieldKeyMsg), entry.Message)
}
for _, key := range keys {
f.appendKeyValue(b, key, entry.Data[key])
}
}
b.WriteByte('\n')
return b.Bytes(), nil
}
func (f *TextFormatter) printColored(b *bytes.Buffer, entry *Entry, keys []string, timestampFormat string) {
var levelColor int
switch entry.Level {
case DebugLevel:
levelColor = gray
case WarnLevel:
levelColor = yellow
case ErrorLevel, FatalLevel, PanicLevel:
levelColor = red
default:
levelColor = blue
}
levelText := strings.ToUpper(entry.Level.String())
if !f.DisableLevelTruncation {
levelText = levelText[0:4]
}
if f.DisableTimestamp {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m %-44s ", levelColor, levelText, entry.Message)
} else if !f.FullTimestamp {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%04d] %-44s ", levelColor, levelText, int(entry.Time.Sub(baseTimestamp)/time.Second), entry.Message)
} else {
fmt.Fprintf(b, "\x1b[%dm%s\x1b[0m[%s] %-44s ", levelColor, levelText, entry.Time.Format(timestampFormat), entry.Message)
}
for _, k := range keys {
v := entry.Data[k]
fmt.Fprintf(b, " \x1b[%dm%s\x1b[0m=", levelColor, k)
f.appendValue(b, v)
}
}
func (f *TextFormatter) needsQuoting(text string) bool {
if f.QuoteEmptyFields && len(text) == 0 {
return true
}
for _, ch := range text {
if !((ch >= 'a' && ch <= 'z') ||
(ch >= 'A' && ch <= 'Z') ||
(ch >= '0' && ch <= '9') ||
ch == '-' || ch == '.' || ch == '_' || ch == '/' || ch == '@' || ch == '^' || ch == '+') {
return true
}
}
return false
}
func (f *TextFormatter) appendKeyValue(b *bytes.Buffer, key string, value interface{}) {
if b.Len() > 0 {
b.WriteByte(' ')
}
b.WriteString(key)
b.WriteByte('=')
f.appendValue(b, value)
}
func (f *TextFormatter) appendValue(b *bytes.Buffer, value interface{}) {
stringVal, ok := value.(string)
if !ok {
stringVal = fmt.Sprint(value)
}
if !f.needsQuoting(stringVal) {
b.WriteString(stringVal)
} else {
b.WriteString(fmt.Sprintf("%q", stringVal))
}
}

62
vendor/github.com/Sirupsen/logrus/writer.go generated vendored Normal file
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@ -0,0 +1,62 @@
package logrus
import (
"bufio"
"io"
"runtime"
)
func (logger *Logger) Writer() *io.PipeWriter {
return logger.WriterLevel(InfoLevel)
}
func (logger *Logger) WriterLevel(level Level) *io.PipeWriter {
return NewEntry(logger).WriterLevel(level)
}
func (entry *Entry) Writer() *io.PipeWriter {
return entry.WriterLevel(InfoLevel)
}
func (entry *Entry) WriterLevel(level Level) *io.PipeWriter {
reader, writer := io.Pipe()
var printFunc func(args ...interface{})
switch level {
case DebugLevel:
printFunc = entry.Debug
case InfoLevel:
printFunc = entry.Info
case WarnLevel:
printFunc = entry.Warn
case ErrorLevel:
printFunc = entry.Error
case FatalLevel:
printFunc = entry.Fatal
case PanicLevel:
printFunc = entry.Panic
default:
printFunc = entry.Print
}
go entry.writerScanner(reader, printFunc)
runtime.SetFinalizer(writer, writerFinalizer)
return writer
}
func (entry *Entry) writerScanner(reader *io.PipeReader, printFunc func(args ...interface{})) {
scanner := bufio.NewScanner(reader)
for scanner.Scan() {
printFunc(scanner.Text())
}
if err := scanner.Err(); err != nil {
entry.Errorf("Error while reading from Writer: %s", err)
}
reader.Close()
}
func writerFinalizer(writer *io.PipeWriter) {
writer.Close()
}

15
vendor/github.com/davecgh/go-spew/LICENSE generated vendored
View File

@ -1,15 +0,0 @@
ISC License
Copyright (c) 2012-2016 Dave Collins <dave@davec.name>
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

152
vendor/github.com/davecgh/go-spew/spew/bypass.go generated vendored
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@ -1,152 +0,0 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is not running on Google App Engine, compiled by GopherJS, and
// "-tags safe" is not added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build !js,!appengine,!safe,!disableunsafe
package spew
import (
"reflect"
"unsafe"
)
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = false
// ptrSize is the size of a pointer on the current arch.
ptrSize = unsafe.Sizeof((*byte)(nil))
)
var (
// offsetPtr, offsetScalar, and offsetFlag are the offsets for the
// internal reflect.Value fields. These values are valid before golang
// commit ecccf07e7f9d which changed the format. The are also valid
// after commit 82f48826c6c7 which changed the format again to mirror
// the original format. Code in the init function updates these offsets
// as necessary.
offsetPtr = uintptr(ptrSize)
offsetScalar = uintptr(0)
offsetFlag = uintptr(ptrSize * 2)
// flagKindWidth and flagKindShift indicate various bits that the
// reflect package uses internally to track kind information.
//
// flagRO indicates whether or not the value field of a reflect.Value is
// read-only.
//
// flagIndir indicates whether the value field of a reflect.Value is
// the actual data or a pointer to the data.
//
// These values are valid before golang commit 90a7c3c86944 which
// changed their positions. Code in the init function updates these
// flags as necessary.
flagKindWidth = uintptr(5)
flagKindShift = uintptr(flagKindWidth - 1)
flagRO = uintptr(1 << 0)
flagIndir = uintptr(1 << 1)
)
func init() {
// Older versions of reflect.Value stored small integers directly in the
// ptr field (which is named val in the older versions). Versions
// between commits ecccf07e7f9d and 82f48826c6c7 added a new field named
// scalar for this purpose which unfortunately came before the flag
// field, so the offset of the flag field is different for those
// versions.
//
// This code constructs a new reflect.Value from a known small integer
// and checks if the size of the reflect.Value struct indicates it has
// the scalar field. When it does, the offsets are updated accordingly.
vv := reflect.ValueOf(0xf00)
if unsafe.Sizeof(vv) == (ptrSize * 4) {
offsetScalar = ptrSize * 2
offsetFlag = ptrSize * 3
}
// Commit 90a7c3c86944 changed the flag positions such that the low
// order bits are the kind. This code extracts the kind from the flags
// field and ensures it's the correct type. When it's not, the flag
// order has been changed to the newer format, so the flags are updated
// accordingly.
upf := unsafe.Pointer(uintptr(unsafe.Pointer(&vv)) + offsetFlag)
upfv := *(*uintptr)(upf)
flagKindMask := uintptr((1<<flagKindWidth - 1) << flagKindShift)
if (upfv&flagKindMask)>>flagKindShift != uintptr(reflect.Int) {
flagKindShift = 0
flagRO = 1 << 5
flagIndir = 1 << 6
// Commit adf9b30e5594 modified the flags to separate the
// flagRO flag into two bits which specifies whether or not the
// field is embedded. This causes flagIndir to move over a bit
// and means that flagRO is the combination of either of the
// original flagRO bit and the new bit.
//
// This code detects the change by extracting what used to be
// the indirect bit to ensure it's set. When it's not, the flag
// order has been changed to the newer format, so the flags are
// updated accordingly.
if upfv&flagIndir == 0 {
flagRO = 3 << 5
flagIndir = 1 << 7
}
}
}
// unsafeReflectValue converts the passed reflect.Value into a one that bypasses
// the typical safety restrictions preventing access to unaddressable and
// unexported data. It works by digging the raw pointer to the underlying
// value out of the protected value and generating a new unprotected (unsafe)
// reflect.Value to it.
//
// This allows us to check for implementations of the Stringer and error
// interfaces to be used for pretty printing ordinarily unaddressable and
// inaccessible values such as unexported struct fields.
func unsafeReflectValue(v reflect.Value) (rv reflect.Value) {
indirects := 1
vt := v.Type()
upv := unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetPtr)
rvf := *(*uintptr)(unsafe.Pointer(uintptr(unsafe.Pointer(&v)) + offsetFlag))
if rvf&flagIndir != 0 {
vt = reflect.PtrTo(v.Type())
indirects++
} else if offsetScalar != 0 {
// The value is in the scalar field when it's not one of the
// reference types.
switch vt.Kind() {
case reflect.Uintptr:
case reflect.Chan:
case reflect.Func:
case reflect.Map:
case reflect.Ptr:
case reflect.UnsafePointer:
default:
upv = unsafe.Pointer(uintptr(unsafe.Pointer(&v)) +
offsetScalar)
}
}
pv := reflect.NewAt(vt, upv)
rv = pv
for i := 0; i < indirects; i++ {
rv = rv.Elem()
}
return rv
}

38
vendor/github.com/davecgh/go-spew/spew/bypasssafe.go generated vendored
View File

@ -1,38 +0,0 @@
// Copyright (c) 2015-2016 Dave Collins <dave@davec.name>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
// NOTE: Due to the following build constraints, this file will only be compiled
// when the code is running on Google App Engine, compiled by GopherJS, or
// "-tags safe" is added to the go build command line. The "disableunsafe"
// tag is deprecated and thus should not be used.
// +build js appengine safe disableunsafe
package spew
import "reflect"
const (
// UnsafeDisabled is a build-time constant which specifies whether or
// not access to the unsafe package is available.
UnsafeDisabled = true
)
// unsafeReflectValue typically converts the passed reflect.Value into a one
// that bypasses the typical safety restrictions preventing access to
// unaddressable and unexported data. However, doing this relies on access to
// the unsafe package. This is a stub version which simply returns the passed
// reflect.Value when the unsafe package is not available.
func unsafeReflectValue(v reflect.Value) reflect.Value {
return v
}

341
vendor/github.com/davecgh/go-spew/spew/common.go generated vendored
View File

@ -1,341 +0,0 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"reflect"
"sort"
"strconv"
)
// Some constants in the form of bytes to avoid string overhead. This mirrors
// the technique used in the fmt package.
var (
panicBytes = []byte("(PANIC=")
plusBytes = []byte("+")
iBytes = []byte("i")
trueBytes = []byte("true")
falseBytes = []byte("false")
interfaceBytes = []byte("(interface {})")
commaNewlineBytes = []byte(",\n")
newlineBytes = []byte("\n")
openBraceBytes = []byte("{")
openBraceNewlineBytes = []byte("{\n")
closeBraceBytes = []byte("}")
asteriskBytes = []byte("*")
colonBytes = []byte(":")
colonSpaceBytes = []byte(": ")
openParenBytes = []byte("(")
closeParenBytes = []byte(")")
spaceBytes = []byte(" ")
pointerChainBytes = []byte("->")
nilAngleBytes = []byte("<nil>")
maxNewlineBytes = []byte("<max depth reached>\n")
maxShortBytes = []byte("<max>")
circularBytes = []byte("<already shown>")
circularShortBytes = []byte("<shown>")
invalidAngleBytes = []byte("<invalid>")
openBracketBytes = []byte("[")
closeBracketBytes = []byte("]")
percentBytes = []byte("%")
precisionBytes = []byte(".")
openAngleBytes = []byte("<")
closeAngleBytes = []byte(">")
openMapBytes = []byte("map[")
closeMapBytes = []byte("]")
lenEqualsBytes = []byte("len=")
capEqualsBytes = []byte("cap=")
)
// hexDigits is used to map a decimal value to a hex digit.
var hexDigits = "0123456789abcdef"
// catchPanic handles any panics that might occur during the handleMethods
// calls.
func catchPanic(w io.Writer, v reflect.Value) {
if err := recover(); err != nil {
w.Write(panicBytes)
fmt.Fprintf(w, "%v", err)
w.Write(closeParenBytes)
}
}
// handleMethods attempts to call the Error and String methods on the underlying
// type the passed reflect.Value represents and outputes the result to Writer w.
//
// It handles panics in any called methods by catching and displaying the error
// as the formatted value.
func handleMethods(cs *ConfigState, w io.Writer, v reflect.Value) (handled bool) {
// We need an interface to check if the type implements the error or
// Stringer interface. However, the reflect package won't give us an
// interface on certain things like unexported struct fields in order
// to enforce visibility rules. We use unsafe, when it's available,
// to bypass these restrictions since this package does not mutate the
// values.
if !v.CanInterface() {
if UnsafeDisabled {
return false
}
v = unsafeReflectValue(v)
}
// Choose whether or not to do error and Stringer interface lookups against
// the base type or a pointer to the base type depending on settings.
// Technically calling one of these methods with a pointer receiver can
// mutate the value, however, types which choose to satisify an error or
// Stringer interface with a pointer receiver should not be mutating their
// state inside these interface methods.
if !cs.DisablePointerMethods && !UnsafeDisabled && !v.CanAddr() {
v = unsafeReflectValue(v)
}
if v.CanAddr() {
v = v.Addr()
}
// Is it an error or Stringer?
switch iface := v.Interface().(type) {
case error:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.Error()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.Error()))
return true
case fmt.Stringer:
defer catchPanic(w, v)
if cs.ContinueOnMethod {
w.Write(openParenBytes)
w.Write([]byte(iface.String()))
w.Write(closeParenBytes)
w.Write(spaceBytes)
return false
}
w.Write([]byte(iface.String()))
return true
}
return false
}
// printBool outputs a boolean value as true or false to Writer w.
func printBool(w io.Writer, val bool) {
if val {
w.Write(trueBytes)
} else {
w.Write(falseBytes)
}
}
// printInt outputs a signed integer value to Writer w.
func printInt(w io.Writer, val int64, base int) {
w.Write([]byte(strconv.FormatInt(val, base)))
}
// printUint outputs an unsigned integer value to Writer w.
func printUint(w io.Writer, val uint64, base int) {
w.Write([]byte(strconv.FormatUint(val, base)))
}
// printFloat outputs a floating point value using the specified precision,
// which is expected to be 32 or 64bit, to Writer w.
func printFloat(w io.Writer, val float64, precision int) {
w.Write([]byte(strconv.FormatFloat(val, 'g', -1, precision)))
}
// printComplex outputs a complex value using the specified float precision
// for the real and imaginary parts to Writer w.
func printComplex(w io.Writer, c complex128, floatPrecision int) {
r := real(c)
w.Write(openParenBytes)
w.Write([]byte(strconv.FormatFloat(r, 'g', -1, floatPrecision)))
i := imag(c)
if i >= 0 {
w.Write(plusBytes)
}
w.Write([]byte(strconv.FormatFloat(i, 'g', -1, floatPrecision)))
w.Write(iBytes)
w.Write(closeParenBytes)
}
// printHexPtr outputs a uintptr formatted as hexidecimal with a leading '0x'
// prefix to Writer w.
func printHexPtr(w io.Writer, p uintptr) {
// Null pointer.
num := uint64(p)
if num == 0 {
w.Write(nilAngleBytes)
return
}
// Max uint64 is 16 bytes in hex + 2 bytes for '0x' prefix
buf := make([]byte, 18)
// It's simpler to construct the hex string right to left.
base := uint64(16)
i := len(buf) - 1
for num >= base {
buf[i] = hexDigits[num%base]
num /= base
i--
}
buf[i] = hexDigits[num]
// Add '0x' prefix.
i--
buf[i] = 'x'
i--
buf[i] = '0'
// Strip unused leading bytes.
buf = buf[i:]
w.Write(buf)
}
// valuesSorter implements sort.Interface to allow a slice of reflect.Value
// elements to be sorted.
type valuesSorter struct {
values []reflect.Value
strings []string // either nil or same len and values
cs *ConfigState
}
// newValuesSorter initializes a valuesSorter instance, which holds a set of
// surrogate keys on which the data should be sorted. It uses flags in
// ConfigState to decide if and how to populate those surrogate keys.
func newValuesSorter(values []reflect.Value, cs *ConfigState) sort.Interface {
vs := &valuesSorter{values: values, cs: cs}
if canSortSimply(vs.values[0].Kind()) {
return vs
}
if !cs.DisableMethods {
vs.strings = make([]string, len(values))
for i := range vs.values {
b := bytes.Buffer{}
if !handleMethods(cs, &b, vs.values[i]) {
vs.strings = nil
break
}
vs.strings[i] = b.String()
}
}
if vs.strings == nil && cs.SpewKeys {
vs.strings = make([]string, len(values))
for i := range vs.values {
vs.strings[i] = Sprintf("%#v", vs.values[i].Interface())
}
}
return vs
}
// canSortSimply tests whether a reflect.Kind is a primitive that can be sorted
// directly, or whether it should be considered for sorting by surrogate keys
// (if the ConfigState allows it).
func canSortSimply(kind reflect.Kind) bool {
// This switch parallels valueSortLess, except for the default case.
switch kind {
case reflect.Bool:
return true
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return true
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Uintptr:
return true
case reflect.Array:
return true
}
return false
}
// Len returns the number of values in the slice. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Len() int {
return len(s.values)
}
// Swap swaps the values at the passed indices. It is part of the
// sort.Interface implementation.
func (s *valuesSorter) Swap(i, j int) {
s.values[i], s.values[j] = s.values[j], s.values[i]
if s.strings != nil {
s.strings[i], s.strings[j] = s.strings[j], s.strings[i]
}
}
// valueSortLess returns whether the first value should sort before the second
// value. It is used by valueSorter.Less as part of the sort.Interface
// implementation.
func valueSortLess(a, b reflect.Value) bool {
switch a.Kind() {
case reflect.Bool:
return !a.Bool() && b.Bool()
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
return a.Int() < b.Int()
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
return a.Uint() < b.Uint()
case reflect.Float32, reflect.Float64:
return a.Float() < b.Float()
case reflect.String:
return a.String() < b.String()
case reflect.Uintptr:
return a.Uint() < b.Uint()
case reflect.Array:
// Compare the contents of both arrays.
l := a.Len()
for i := 0; i < l; i++ {
av := a.Index(i)
bv := b.Index(i)
if av.Interface() == bv.Interface() {
continue
}
return valueSortLess(av, bv)
}
}
return a.String() < b.String()
}
// Less returns whether the value at index i should sort before the
// value at index j. It is part of the sort.Interface implementation.
func (s *valuesSorter) Less(i, j int) bool {
if s.strings == nil {
return valueSortLess(s.values[i], s.values[j])
}
return s.strings[i] < s.strings[j]
}
// sortValues is a sort function that handles both native types and any type that
// can be converted to error or Stringer. Other inputs are sorted according to
// their Value.String() value to ensure display stability.
func sortValues(values []reflect.Value, cs *ConfigState) {
if len(values) == 0 {
return
}
sort.Sort(newValuesSorter(values, cs))
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"io"
"os"
)
// ConfigState houses the configuration options used by spew to format and
// display values. There is a global instance, Config, that is used to control
// all top-level Formatter and Dump functionality. Each ConfigState instance
// provides methods equivalent to the top-level functions.
//
// The zero value for ConfigState provides no indentation. You would typically
// want to set it to a space or a tab.
//
// Alternatively, you can use NewDefaultConfig to get a ConfigState instance
// with default settings. See the documentation of NewDefaultConfig for default
// values.
type ConfigState struct {
// Indent specifies the string to use for each indentation level. The
// global config instance that all top-level functions use set this to a
// single space by default. If you would like more indentation, you might
// set this to a tab with "\t" or perhaps two spaces with " ".
Indent string
// MaxDepth controls the maximum number of levels to descend into nested
// data structures. The default, 0, means there is no limit.
//
// NOTE: Circular data structures are properly detected, so it is not
// necessary to set this value unless you specifically want to limit deeply
// nested data structures.
MaxDepth int
// DisableMethods specifies whether or not error and Stringer interfaces are
// invoked for types that implement them.
DisableMethods bool
// DisablePointerMethods specifies whether or not to check for and invoke
// error and Stringer interfaces on types which only accept a pointer
// receiver when the current type is not a pointer.
//
// NOTE: This might be an unsafe action since calling one of these methods
// with a pointer receiver could technically mutate the value, however,
// in practice, types which choose to satisify an error or Stringer
// interface with a pointer receiver should not be mutating their state
// inside these interface methods. As a result, this option relies on
// access to the unsafe package, so it will not have any effect when
// running in environments without access to the unsafe package such as
// Google App Engine or with the "safe" build tag specified.
DisablePointerMethods bool
// DisablePointerAddresses specifies whether to disable the printing of
// pointer addresses. This is useful when diffing data structures in tests.
DisablePointerAddresses bool
// DisableCapacities specifies whether to disable the printing of capacities
// for arrays, slices, maps and channels. This is useful when diffing
// data structures in tests.
DisableCapacities bool
// ContinueOnMethod specifies whether or not recursion should continue once
// a custom error or Stringer interface is invoked. The default, false,
// means it will print the results of invoking the custom error or Stringer
// interface and return immediately instead of continuing to recurse into
// the internals of the data type.
//
// NOTE: This flag does not have any effect if method invocation is disabled
// via the DisableMethods or DisablePointerMethods options.
ContinueOnMethod bool
// SortKeys specifies map keys should be sorted before being printed. Use
// this to have a more deterministic, diffable output. Note that only
// native types (bool, int, uint, floats, uintptr and string) and types
// that support the error or Stringer interfaces (if methods are
// enabled) are supported, with other types sorted according to the
// reflect.Value.String() output which guarantees display stability.
SortKeys bool
// SpewKeys specifies that, as a last resort attempt, map keys should
// be spewed to strings and sorted by those strings. This is only
// considered if SortKeys is true.
SpewKeys bool
}
// Config is the active configuration of the top-level functions.
// The configuration can be changed by modifying the contents of spew.Config.
var Config = ConfigState{Indent: " "}
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the formatted string as a value that satisfies error. See NewFormatter
// for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, c.convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, c.convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, c.convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a Formatter interface returned by c.NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, c.convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Print(a ...interface{}) (n int, err error) {
return fmt.Print(c.convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, c.convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Println(a ...interface{}) (n int, err error) {
return fmt.Println(c.convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprint(a ...interface{}) string {
return fmt.Sprint(c.convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a Formatter interface returned by c.NewFormatter. It returns
// the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, c.convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a Formatter interface returned by c.NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(c.NewFormatter(a), c.NewFormatter(b))
func (c *ConfigState) Sprintln(a ...interface{}) string {
return fmt.Sprintln(c.convertArgs(a)...)
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), and %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
c.Printf, c.Println, or c.Printf.
*/
func (c *ConfigState) NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(c, v)
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func (c *ConfigState) Fdump(w io.Writer, a ...interface{}) {
fdump(c, w, a...)
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by modifying the public members
of c. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func (c *ConfigState) Dump(a ...interface{}) {
fdump(c, os.Stdout, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func (c *ConfigState) Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(c, &buf, a...)
return buf.String()
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a spew Formatter interface using
// the ConfigState associated with s.
func (c *ConfigState) convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = newFormatter(c, arg)
}
return formatters
}
// NewDefaultConfig returns a ConfigState with the following default settings.
//
// Indent: " "
// MaxDepth: 0
// DisableMethods: false
// DisablePointerMethods: false
// ContinueOnMethod: false
// SortKeys: false
func NewDefaultConfig() *ConfigState {
return &ConfigState{Indent: " "}
}

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
Package spew implements a deep pretty printer for Go data structures to aid in
debugging.
A quick overview of the additional features spew provides over the built-in
printing facilities for Go data types are as follows:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output (only when using
Dump style)
There are two different approaches spew allows for dumping Go data structures:
* Dump style which prints with newlines, customizable indentation,
and additional debug information such as types and all pointer addresses
used to indirect to the final value
* A custom Formatter interface that integrates cleanly with the standard fmt
package and replaces %v, %+v, %#v, and %#+v to provide inline printing
similar to the default %v while providing the additional functionality
outlined above and passing unsupported format verbs such as %x and %q
along to fmt
Quick Start
This section demonstrates how to quickly get started with spew. See the
sections below for further details on formatting and configuration options.
To dump a variable with full newlines, indentation, type, and pointer
information use Dump, Fdump, or Sdump:
spew.Dump(myVar1, myVar2, ...)
spew.Fdump(someWriter, myVar1, myVar2, ...)
str := spew.Sdump(myVar1, myVar2, ...)
Alternatively, if you would prefer to use format strings with a compacted inline
printing style, use the convenience wrappers Printf, Fprintf, etc with
%v (most compact), %+v (adds pointer addresses), %#v (adds types), or
%#+v (adds types and pointer addresses):
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Fprintf(someWriter, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(someWriter, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
Configuration Options
Configuration of spew is handled by fields in the ConfigState type. For
convenience, all of the top-level functions use a global state available
via the spew.Config global.
It is also possible to create a ConfigState instance that provides methods
equivalent to the top-level functions. This allows concurrent configuration
options. See the ConfigState documentation for more details.
The following configuration options are available:
* Indent
String to use for each indentation level for Dump functions.
It is a single space by default. A popular alternative is "\t".
* MaxDepth
Maximum number of levels to descend into nested data structures.
There is no limit by default.
* DisableMethods
Disables invocation of error and Stringer interface methods.
Method invocation is enabled by default.
* DisablePointerMethods
Disables invocation of error and Stringer interface methods on types
which only accept pointer receivers from non-pointer variables.
Pointer method invocation is enabled by default.
* DisablePointerAddresses
DisablePointerAddresses specifies whether to disable the printing of
pointer addresses. This is useful when diffing data structures in tests.
* DisableCapacities
DisableCapacities specifies whether to disable the printing of
capacities for arrays, slices, maps and channels. This is useful when
diffing data structures in tests.
* ContinueOnMethod
Enables recursion into types after invoking error and Stringer interface
methods. Recursion after method invocation is disabled by default.
* SortKeys
Specifies map keys should be sorted before being printed. Use
this to have a more deterministic, diffable output. Note that
only native types (bool, int, uint, floats, uintptr and string)
and types which implement error or Stringer interfaces are
supported with other types sorted according to the
reflect.Value.String() output which guarantees display
stability. Natural map order is used by default.
* SpewKeys
Specifies that, as a last resort attempt, map keys should be
spewed to strings and sorted by those strings. This is only
considered if SortKeys is true.
Dump Usage
Simply call spew.Dump with a list of variables you want to dump:
spew.Dump(myVar1, myVar2, ...)
You may also call spew.Fdump if you would prefer to output to an arbitrary
io.Writer. For example, to dump to standard error:
spew.Fdump(os.Stderr, myVar1, myVar2, ...)
A third option is to call spew.Sdump to get the formatted output as a string:
str := spew.Sdump(myVar1, myVar2, ...)
Sample Dump Output
See the Dump example for details on the setup of the types and variables being
shown here.
(main.Foo) {
unexportedField: (*main.Bar)(0xf84002e210)({
flag: (main.Flag) flagTwo,
data: (uintptr) <nil>
}),
ExportedField: (map[interface {}]interface {}) (len=1) {
(string) (len=3) "one": (bool) true
}
}
Byte (and uint8) arrays and slices are displayed uniquely like the hexdump -C
command as shown.
([]uint8) (len=32 cap=32) {
00000000 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f 20 |............... |
00000010 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 |!"#$%&'()*+,-./0|
00000020 31 32 |12|
}
Custom Formatter
Spew provides a custom formatter that implements the fmt.Formatter interface
so that it integrates cleanly with standard fmt package printing functions. The
formatter is useful for inline printing of smaller data types similar to the
standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Custom Formatter Usage
The simplest way to make use of the spew custom formatter is to call one of the
convenience functions such as spew.Printf, spew.Println, or spew.Printf. The
functions have syntax you are most likely already familiar with:
spew.Printf("myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Printf("myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
spew.Println(myVar, myVar2)
spew.Fprintf(os.Stderr, "myVar1: %v -- myVar2: %+v", myVar1, myVar2)
spew.Fprintf(os.Stderr, "myVar3: %#v -- myVar4: %#+v", myVar3, myVar4)
See the Index for the full list convenience functions.
Sample Formatter Output
Double pointer to a uint8:
%v: <**>5
%+v: <**>(0xf8400420d0->0xf8400420c8)5
%#v: (**uint8)5
%#+v: (**uint8)(0xf8400420d0->0xf8400420c8)5
Pointer to circular struct with a uint8 field and a pointer to itself:
%v: <*>{1 <*><shown>}
%+v: <*>(0xf84003e260){ui8:1 c:<*>(0xf84003e260)<shown>}
%#v: (*main.circular){ui8:(uint8)1 c:(*main.circular)<shown>}
%#+v: (*main.circular)(0xf84003e260){ui8:(uint8)1 c:(*main.circular)(0xf84003e260)<shown>}
See the Printf example for details on the setup of variables being shown
here.
Errors
Since it is possible for custom Stringer/error interfaces to panic, spew
detects them and handles them internally by printing the panic information
inline with the output. Since spew is intended to provide deep pretty printing
capabilities on structures, it intentionally does not return any errors.
*/
package spew

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/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"encoding/hex"
"fmt"
"io"
"os"
"reflect"
"regexp"
"strconv"
"strings"
)
var (
// uint8Type is a reflect.Type representing a uint8. It is used to
// convert cgo types to uint8 slices for hexdumping.
uint8Type = reflect.TypeOf(uint8(0))
// cCharRE is a regular expression that matches a cgo char.
// It is used to detect character arrays to hexdump them.
cCharRE = regexp.MustCompile("^.*\\._Ctype_char$")
// cUnsignedCharRE is a regular expression that matches a cgo unsigned
// char. It is used to detect unsigned character arrays to hexdump
// them.
cUnsignedCharRE = regexp.MustCompile("^.*\\._Ctype_unsignedchar$")
// cUint8tCharRE is a regular expression that matches a cgo uint8_t.
// It is used to detect uint8_t arrays to hexdump them.
cUint8tCharRE = regexp.MustCompile("^.*\\._Ctype_uint8_t$")
)
// dumpState contains information about the state of a dump operation.
type dumpState struct {
w io.Writer
depth int
pointers map[uintptr]int
ignoreNextType bool
ignoreNextIndent bool
cs *ConfigState
}
// indent performs indentation according to the depth level and cs.Indent
// option.
func (d *dumpState) indent() {
if d.ignoreNextIndent {
d.ignoreNextIndent = false
return
}
d.w.Write(bytes.Repeat([]byte(d.cs.Indent), d.depth))
}
// unpackValue returns values inside of non-nil interfaces when possible.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (d *dumpState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface && !v.IsNil() {
v = v.Elem()
}
return v
}
// dumpPtr handles formatting of pointers by indirecting them as necessary.
func (d *dumpState) dumpPtr(v reflect.Value) {
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range d.pointers {
if depth >= d.depth {
delete(d.pointers, k)
}
}
// Keep list of all dereferenced pointers to show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by dereferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := d.pointers[addr]; ok && pd < d.depth {
cycleFound = true
indirects--
break
}
d.pointers[addr] = d.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type information.
d.w.Write(openParenBytes)
d.w.Write(bytes.Repeat(asteriskBytes, indirects))
d.w.Write([]byte(ve.Type().String()))
d.w.Write(closeParenBytes)
// Display pointer information.
if !d.cs.DisablePointerAddresses && len(pointerChain) > 0 {
d.w.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
d.w.Write(pointerChainBytes)
}
printHexPtr(d.w, addr)
}
d.w.Write(closeParenBytes)
}
// Display dereferenced value.
d.w.Write(openParenBytes)
switch {
case nilFound == true:
d.w.Write(nilAngleBytes)
case cycleFound == true:
d.w.Write(circularBytes)
default:
d.ignoreNextType = true
d.dump(ve)
}
d.w.Write(closeParenBytes)
}
// dumpSlice handles formatting of arrays and slices. Byte (uint8 under
// reflection) arrays and slices are dumped in hexdump -C fashion.
func (d *dumpState) dumpSlice(v reflect.Value) {
// Determine whether this type should be hex dumped or not. Also,
// for types which should be hexdumped, try to use the underlying data
// first, then fall back to trying to convert them to a uint8 slice.
var buf []uint8
doConvert := false
doHexDump := false
numEntries := v.Len()
if numEntries > 0 {
vt := v.Index(0).Type()
vts := vt.String()
switch {
// C types that need to be converted.
case cCharRE.MatchString(vts):
fallthrough
case cUnsignedCharRE.MatchString(vts):
fallthrough
case cUint8tCharRE.MatchString(vts):
doConvert = true
// Try to use existing uint8 slices and fall back to converting
// and copying if that fails.
case vt.Kind() == reflect.Uint8:
// We need an addressable interface to convert the type
// to a byte slice. However, the reflect package won't
// give us an interface on certain things like
// unexported struct fields in order to enforce
// visibility rules. We use unsafe, when available, to
// bypass these restrictions since this package does not
// mutate the values.
vs := v
if !vs.CanInterface() || !vs.CanAddr() {
vs = unsafeReflectValue(vs)
}
if !UnsafeDisabled {
vs = vs.Slice(0, numEntries)
// Use the existing uint8 slice if it can be
// type asserted.
iface := vs.Interface()
if slice, ok := iface.([]uint8); ok {
buf = slice
doHexDump = true
break
}
}
// The underlying data needs to be converted if it can't
// be type asserted to a uint8 slice.
doConvert = true
}
// Copy and convert the underlying type if needed.
if doConvert && vt.ConvertibleTo(uint8Type) {
// Convert and copy each element into a uint8 byte
// slice.
buf = make([]uint8, numEntries)
for i := 0; i < numEntries; i++ {
vv := v.Index(i)
buf[i] = uint8(vv.Convert(uint8Type).Uint())
}
doHexDump = true
}
}
// Hexdump the entire slice as needed.
if doHexDump {
indent := strings.Repeat(d.cs.Indent, d.depth)
str := indent + hex.Dump(buf)
str = strings.Replace(str, "\n", "\n"+indent, -1)
str = strings.TrimRight(str, d.cs.Indent)
d.w.Write([]byte(str))
return
}
// Recursively call dump for each item.
for i := 0; i < numEntries; i++ {
d.dump(d.unpackValue(v.Index(i)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
// dump is the main workhorse for dumping a value. It uses the passed reflect
// value to figure out what kind of object we are dealing with and formats it
// appropriately. It is a recursive function, however circular data structures
// are detected and handled properly.
func (d *dumpState) dump(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
d.w.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
d.indent()
d.dumpPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !d.ignoreNextType {
d.indent()
d.w.Write(openParenBytes)
d.w.Write([]byte(v.Type().String()))
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
d.ignoreNextType = false
// Display length and capacity if the built-in len and cap functions
// work with the value's kind and the len/cap itself is non-zero.
valueLen, valueCap := 0, 0
switch v.Kind() {
case reflect.Array, reflect.Slice, reflect.Chan:
valueLen, valueCap = v.Len(), v.Cap()
case reflect.Map, reflect.String:
valueLen = v.Len()
}
if valueLen != 0 || !d.cs.DisableCapacities && valueCap != 0 {
d.w.Write(openParenBytes)
if valueLen != 0 {
d.w.Write(lenEqualsBytes)
printInt(d.w, int64(valueLen), 10)
}
if !d.cs.DisableCapacities && valueCap != 0 {
if valueLen != 0 {
d.w.Write(spaceBytes)
}
d.w.Write(capEqualsBytes)
printInt(d.w, int64(valueCap), 10)
}
d.w.Write(closeParenBytes)
d.w.Write(spaceBytes)
}
// Call Stringer/error interfaces if they exist and the handle methods flag
// is enabled
if !d.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(d.cs, d.w, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(d.w, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(d.w, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(d.w, v.Uint(), 10)
case reflect.Float32:
printFloat(d.w, v.Float(), 32)
case reflect.Float64:
printFloat(d.w, v.Float(), 64)
case reflect.Complex64:
printComplex(d.w, v.Complex(), 32)
case reflect.Complex128:
printComplex(d.w, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
d.dumpSlice(v)
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.String:
d.w.Write([]byte(strconv.Quote(v.String())))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
d.w.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
d.w.Write(nilAngleBytes)
break
}
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
numEntries := v.Len()
keys := v.MapKeys()
if d.cs.SortKeys {
sortValues(keys, d.cs)
}
for i, key := range keys {
d.dump(d.unpackValue(key))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.MapIndex(key)))
if i < (numEntries - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Struct:
d.w.Write(openBraceNewlineBytes)
d.depth++
if (d.cs.MaxDepth != 0) && (d.depth > d.cs.MaxDepth) {
d.indent()
d.w.Write(maxNewlineBytes)
} else {
vt := v.Type()
numFields := v.NumField()
for i := 0; i < numFields; i++ {
d.indent()
vtf := vt.Field(i)
d.w.Write([]byte(vtf.Name))
d.w.Write(colonSpaceBytes)
d.ignoreNextIndent = true
d.dump(d.unpackValue(v.Field(i)))
if i < (numFields - 1) {
d.w.Write(commaNewlineBytes)
} else {
d.w.Write(newlineBytes)
}
}
}
d.depth--
d.indent()
d.w.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(d.w, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(d.w, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it in case any new
// types are added.
default:
if v.CanInterface() {
fmt.Fprintf(d.w, "%v", v.Interface())
} else {
fmt.Fprintf(d.w, "%v", v.String())
}
}
}
// fdump is a helper function to consolidate the logic from the various public
// methods which take varying writers and config states.
func fdump(cs *ConfigState, w io.Writer, a ...interface{}) {
for _, arg := range a {
if arg == nil {
w.Write(interfaceBytes)
w.Write(spaceBytes)
w.Write(nilAngleBytes)
w.Write(newlineBytes)
continue
}
d := dumpState{w: w, cs: cs}
d.pointers = make(map[uintptr]int)
d.dump(reflect.ValueOf(arg))
d.w.Write(newlineBytes)
}
}
// Fdump formats and displays the passed arguments to io.Writer w. It formats
// exactly the same as Dump.
func Fdump(w io.Writer, a ...interface{}) {
fdump(&Config, w, a...)
}
// Sdump returns a string with the passed arguments formatted exactly the same
// as Dump.
func Sdump(a ...interface{}) string {
var buf bytes.Buffer
fdump(&Config, &buf, a...)
return buf.String()
}
/*
Dump displays the passed parameters to standard out with newlines, customizable
indentation, and additional debug information such as complete types and all
pointer addresses used to indirect to the final value. It provides the
following features over the built-in printing facilities provided by the fmt
package:
* Pointers are dereferenced and followed
* Circular data structures are detected and handled properly
* Custom Stringer/error interfaces are optionally invoked, including
on unexported types
* Custom types which only implement the Stringer/error interfaces via
a pointer receiver are optionally invoked when passing non-pointer
variables
* Byte arrays and slices are dumped like the hexdump -C command which
includes offsets, byte values in hex, and ASCII output
The configuration options are controlled by an exported package global,
spew.Config. See ConfigState for options documentation.
See Fdump if you would prefer dumping to an arbitrary io.Writer or Sdump to
get the formatted result as a string.
*/
func Dump(a ...interface{}) {
fdump(&Config, os.Stdout, a...)
}

419
vendor/github.com/davecgh/go-spew/spew/format.go generated vendored
View File

@ -1,419 +0,0 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"bytes"
"fmt"
"reflect"
"strconv"
"strings"
)
// supportedFlags is a list of all the character flags supported by fmt package.
const supportedFlags = "0-+# "
// formatState implements the fmt.Formatter interface and contains information
// about the state of a formatting operation. The NewFormatter function can
// be used to get a new Formatter which can be used directly as arguments
// in standard fmt package printing calls.
type formatState struct {
value interface{}
fs fmt.State
depth int
pointers map[uintptr]int
ignoreNextType bool
cs *ConfigState
}
// buildDefaultFormat recreates the original format string without precision
// and width information to pass in to fmt.Sprintf in the case of an
// unrecognized type. Unless new types are added to the language, this
// function won't ever be called.
func (f *formatState) buildDefaultFormat() (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
buf.WriteRune('v')
format = buf.String()
return format
}
// constructOrigFormat recreates the original format string including precision
// and width information to pass along to the standard fmt package. This allows
// automatic deferral of all format strings this package doesn't support.
func (f *formatState) constructOrigFormat(verb rune) (format string) {
buf := bytes.NewBuffer(percentBytes)
for _, flag := range supportedFlags {
if f.fs.Flag(int(flag)) {
buf.WriteRune(flag)
}
}
if width, ok := f.fs.Width(); ok {
buf.WriteString(strconv.Itoa(width))
}
if precision, ok := f.fs.Precision(); ok {
buf.Write(precisionBytes)
buf.WriteString(strconv.Itoa(precision))
}
buf.WriteRune(verb)
format = buf.String()
return format
}
// unpackValue returns values inside of non-nil interfaces when possible and
// ensures that types for values which have been unpacked from an interface
// are displayed when the show types flag is also set.
// This is useful for data types like structs, arrays, slices, and maps which
// can contain varying types packed inside an interface.
func (f *formatState) unpackValue(v reflect.Value) reflect.Value {
if v.Kind() == reflect.Interface {
f.ignoreNextType = false
if !v.IsNil() {
v = v.Elem()
}
}
return v
}
// formatPtr handles formatting of pointers by indirecting them as necessary.
func (f *formatState) formatPtr(v reflect.Value) {
// Display nil if top level pointer is nil.
showTypes := f.fs.Flag('#')
if v.IsNil() && (!showTypes || f.ignoreNextType) {
f.fs.Write(nilAngleBytes)
return
}
// Remove pointers at or below the current depth from map used to detect
// circular refs.
for k, depth := range f.pointers {
if depth >= f.depth {
delete(f.pointers, k)
}
}
// Keep list of all dereferenced pointers to possibly show later.
pointerChain := make([]uintptr, 0)
// Figure out how many levels of indirection there are by derferencing
// pointers and unpacking interfaces down the chain while detecting circular
// references.
nilFound := false
cycleFound := false
indirects := 0
ve := v
for ve.Kind() == reflect.Ptr {
if ve.IsNil() {
nilFound = true
break
}
indirects++
addr := ve.Pointer()
pointerChain = append(pointerChain, addr)
if pd, ok := f.pointers[addr]; ok && pd < f.depth {
cycleFound = true
indirects--
break
}
f.pointers[addr] = f.depth
ve = ve.Elem()
if ve.Kind() == reflect.Interface {
if ve.IsNil() {
nilFound = true
break
}
ve = ve.Elem()
}
}
// Display type or indirection level depending on flags.
if showTypes && !f.ignoreNextType {
f.fs.Write(openParenBytes)
f.fs.Write(bytes.Repeat(asteriskBytes, indirects))
f.fs.Write([]byte(ve.Type().String()))
f.fs.Write(closeParenBytes)
} else {
if nilFound || cycleFound {
indirects += strings.Count(ve.Type().String(), "*")
}
f.fs.Write(openAngleBytes)
f.fs.Write([]byte(strings.Repeat("*", indirects)))
f.fs.Write(closeAngleBytes)
}
// Display pointer information depending on flags.
if f.fs.Flag('+') && (len(pointerChain) > 0) {
f.fs.Write(openParenBytes)
for i, addr := range pointerChain {
if i > 0 {
f.fs.Write(pointerChainBytes)
}
printHexPtr(f.fs, addr)
}
f.fs.Write(closeParenBytes)
}
// Display dereferenced value.
switch {
case nilFound == true:
f.fs.Write(nilAngleBytes)
case cycleFound == true:
f.fs.Write(circularShortBytes)
default:
f.ignoreNextType = true
f.format(ve)
}
}
// format is the main workhorse for providing the Formatter interface. It
// uses the passed reflect value to figure out what kind of object we are
// dealing with and formats it appropriately. It is a recursive function,
// however circular data structures are detected and handled properly.
func (f *formatState) format(v reflect.Value) {
// Handle invalid reflect values immediately.
kind := v.Kind()
if kind == reflect.Invalid {
f.fs.Write(invalidAngleBytes)
return
}
// Handle pointers specially.
if kind == reflect.Ptr {
f.formatPtr(v)
return
}
// Print type information unless already handled elsewhere.
if !f.ignoreNextType && f.fs.Flag('#') {
f.fs.Write(openParenBytes)
f.fs.Write([]byte(v.Type().String()))
f.fs.Write(closeParenBytes)
}
f.ignoreNextType = false
// Call Stringer/error interfaces if they exist and the handle methods
// flag is enabled.
if !f.cs.DisableMethods {
if (kind != reflect.Invalid) && (kind != reflect.Interface) {
if handled := handleMethods(f.cs, f.fs, v); handled {
return
}
}
}
switch kind {
case reflect.Invalid:
// Do nothing. We should never get here since invalid has already
// been handled above.
case reflect.Bool:
printBool(f.fs, v.Bool())
case reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64, reflect.Int:
printInt(f.fs, v.Int(), 10)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
printUint(f.fs, v.Uint(), 10)
case reflect.Float32:
printFloat(f.fs, v.Float(), 32)
case reflect.Float64:
printFloat(f.fs, v.Float(), 64)
case reflect.Complex64:
printComplex(f.fs, v.Complex(), 32)
case reflect.Complex128:
printComplex(f.fs, v.Complex(), 64)
case reflect.Slice:
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
fallthrough
case reflect.Array:
f.fs.Write(openBracketBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
numEntries := v.Len()
for i := 0; i < numEntries; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(v.Index(i)))
}
}
f.depth--
f.fs.Write(closeBracketBytes)
case reflect.String:
f.fs.Write([]byte(v.String()))
case reflect.Interface:
// The only time we should get here is for nil interfaces due to
// unpackValue calls.
if v.IsNil() {
f.fs.Write(nilAngleBytes)
}
case reflect.Ptr:
// Do nothing. We should never get here since pointers have already
// been handled above.
case reflect.Map:
// nil maps should be indicated as different than empty maps
if v.IsNil() {
f.fs.Write(nilAngleBytes)
break
}
f.fs.Write(openMapBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
keys := v.MapKeys()
if f.cs.SortKeys {
sortValues(keys, f.cs)
}
for i, key := range keys {
if i > 0 {
f.fs.Write(spaceBytes)
}
f.ignoreNextType = true
f.format(f.unpackValue(key))
f.fs.Write(colonBytes)
f.ignoreNextType = true
f.format(f.unpackValue(v.MapIndex(key)))
}
}
f.depth--
f.fs.Write(closeMapBytes)
case reflect.Struct:
numFields := v.NumField()
f.fs.Write(openBraceBytes)
f.depth++
if (f.cs.MaxDepth != 0) && (f.depth > f.cs.MaxDepth) {
f.fs.Write(maxShortBytes)
} else {
vt := v.Type()
for i := 0; i < numFields; i++ {
if i > 0 {
f.fs.Write(spaceBytes)
}
vtf := vt.Field(i)
if f.fs.Flag('+') || f.fs.Flag('#') {
f.fs.Write([]byte(vtf.Name))
f.fs.Write(colonBytes)
}
f.format(f.unpackValue(v.Field(i)))
}
}
f.depth--
f.fs.Write(closeBraceBytes)
case reflect.Uintptr:
printHexPtr(f.fs, uintptr(v.Uint()))
case reflect.UnsafePointer, reflect.Chan, reflect.Func:
printHexPtr(f.fs, v.Pointer())
// There were not any other types at the time this code was written, but
// fall back to letting the default fmt package handle it if any get added.
default:
format := f.buildDefaultFormat()
if v.CanInterface() {
fmt.Fprintf(f.fs, format, v.Interface())
} else {
fmt.Fprintf(f.fs, format, v.String())
}
}
}
// Format satisfies the fmt.Formatter interface. See NewFormatter for usage
// details.
func (f *formatState) Format(fs fmt.State, verb rune) {
f.fs = fs
// Use standard formatting for verbs that are not v.
if verb != 'v' {
format := f.constructOrigFormat(verb)
fmt.Fprintf(fs, format, f.value)
return
}
if f.value == nil {
if fs.Flag('#') {
fs.Write(interfaceBytes)
}
fs.Write(nilAngleBytes)
return
}
f.format(reflect.ValueOf(f.value))
}
// newFormatter is a helper function to consolidate the logic from the various
// public methods which take varying config states.
func newFormatter(cs *ConfigState, v interface{}) fmt.Formatter {
fs := &formatState{value: v, cs: cs}
fs.pointers = make(map[uintptr]int)
return fs
}
/*
NewFormatter returns a custom formatter that satisfies the fmt.Formatter
interface. As a result, it integrates cleanly with standard fmt package
printing functions. The formatter is useful for inline printing of smaller data
types similar to the standard %v format specifier.
The custom formatter only responds to the %v (most compact), %+v (adds pointer
addresses), %#v (adds types), or %#+v (adds types and pointer addresses) verb
combinations. Any other verbs such as %x and %q will be sent to the the
standard fmt package for formatting. In addition, the custom formatter ignores
the width and precision arguments (however they will still work on the format
specifiers not handled by the custom formatter).
Typically this function shouldn't be called directly. It is much easier to make
use of the custom formatter by calling one of the convenience functions such as
Printf, Println, or Fprintf.
*/
func NewFormatter(v interface{}) fmt.Formatter {
return newFormatter(&Config, v)
}

148
vendor/github.com/davecgh/go-spew/spew/spew.go generated vendored
View File

@ -1,148 +0,0 @@
/*
* Copyright (c) 2013-2016 Dave Collins <dave@davec.name>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
package spew
import (
"fmt"
"io"
)
// Errorf is a wrapper for fmt.Errorf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the formatted string as a value that satisfies error. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Errorf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Errorf(format string, a ...interface{}) (err error) {
return fmt.Errorf(format, convertArgs(a)...)
}
// Fprint is a wrapper for fmt.Fprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprint(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprint(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprint(w, convertArgs(a)...)
}
// Fprintf is a wrapper for fmt.Fprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintf(w, format, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
return fmt.Fprintf(w, format, convertArgs(a)...)
}
// Fprintln is a wrapper for fmt.Fprintln that treats each argument as if it
// passed with a default Formatter interface returned by NewFormatter. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Fprintln(w, spew.NewFormatter(a), spew.NewFormatter(b))
func Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
return fmt.Fprintln(w, convertArgs(a)...)
}
// Print is a wrapper for fmt.Print that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Print(spew.NewFormatter(a), spew.NewFormatter(b))
func Print(a ...interface{}) (n int, err error) {
return fmt.Print(convertArgs(a)...)
}
// Printf is a wrapper for fmt.Printf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Printf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Printf(format string, a ...interface{}) (n int, err error) {
return fmt.Printf(format, convertArgs(a)...)
}
// Println is a wrapper for fmt.Println that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the number of bytes written and any write error encountered. See
// NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Println(spew.NewFormatter(a), spew.NewFormatter(b))
func Println(a ...interface{}) (n int, err error) {
return fmt.Println(convertArgs(a)...)
}
// Sprint is a wrapper for fmt.Sprint that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprint(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprint(a ...interface{}) string {
return fmt.Sprint(convertArgs(a)...)
}
// Sprintf is a wrapper for fmt.Sprintf that treats each argument as if it were
// passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintf(format, spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintf(format string, a ...interface{}) string {
return fmt.Sprintf(format, convertArgs(a)...)
}
// Sprintln is a wrapper for fmt.Sprintln that treats each argument as if it
// were passed with a default Formatter interface returned by NewFormatter. It
// returns the resulting string. See NewFormatter for formatting details.
//
// This function is shorthand for the following syntax:
//
// fmt.Sprintln(spew.NewFormatter(a), spew.NewFormatter(b))
func Sprintln(a ...interface{}) string {
return fmt.Sprintln(convertArgs(a)...)
}
// convertArgs accepts a slice of arguments and returns a slice of the same
// length with each argument converted to a default spew Formatter interface.
func convertArgs(args []interface{}) (formatters []interface{}) {
formatters = make([]interface{}, len(args))
for index, arg := range args {
formatters[index] = NewFormatter(arg)
}
return formatters
}

3
vendor/github.com/jesseduffield/gocui/gui.go generated vendored
View File

@ -364,6 +364,9 @@ func (g *Gui) SetManagerFunc(manager func(*Gui) error) {
// MainLoop runs the main loop until an error is returned. A successful // MainLoop runs the main loop until an error is returned. A successful
// finish should return ErrQuit. // finish should return ErrQuit.
func (g *Gui) MainLoop() error { func (g *Gui) MainLoop() error {
if err := g.flush(); err != nil {
return err
}
go func() { go func() {
for { for {
g.tbEvents <- termbox.PollEvent() g.tbEvents <- termbox.PollEvent()

951
vendor/golang.org/x/crypto/ssh/terminal/terminal.go generated vendored Normal file
View File

@ -0,0 +1,951 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package terminal
import (
"bytes"
"io"
"sync"
"unicode/utf8"
)
// EscapeCodes contains escape sequences that can be written to the terminal in
// order to achieve different styles of text.
type EscapeCodes struct {
// Foreground colors
Black, Red, Green, Yellow, Blue, Magenta, Cyan, White []byte
// Reset all attributes
Reset []byte
}
var vt100EscapeCodes = EscapeCodes{
Black: []byte{keyEscape, '[', '3', '0', 'm'},
Red: []byte{keyEscape, '[', '3', '1', 'm'},
Green: []byte{keyEscape, '[', '3', '2', 'm'},
Yellow: []byte{keyEscape, '[', '3', '3', 'm'},
Blue: []byte{keyEscape, '[', '3', '4', 'm'},
Magenta: []byte{keyEscape, '[', '3', '5', 'm'},
Cyan: []byte{keyEscape, '[', '3', '6', 'm'},
White: []byte{keyEscape, '[', '3', '7', 'm'},
Reset: []byte{keyEscape, '[', '0', 'm'},
}
// Terminal contains the state for running a VT100 terminal that is capable of
// reading lines of input.
type Terminal struct {
// AutoCompleteCallback, if non-null, is called for each keypress with
// the full input line and the current position of the cursor (in
// bytes, as an index into |line|). If it returns ok=false, the key
// press is processed normally. Otherwise it returns a replacement line
// and the new cursor position.
AutoCompleteCallback func(line string, pos int, key rune) (newLine string, newPos int, ok bool)
// Escape contains a pointer to the escape codes for this terminal.
// It's always a valid pointer, although the escape codes themselves
// may be empty if the terminal doesn't support them.
Escape *EscapeCodes
// lock protects the terminal and the state in this object from
// concurrent processing of a key press and a Write() call.
lock sync.Mutex
c io.ReadWriter
prompt []rune
// line is the current line being entered.
line []rune
// pos is the logical position of the cursor in line
pos int
// echo is true if local echo is enabled
echo bool
// pasteActive is true iff there is a bracketed paste operation in
// progress.
pasteActive bool
// cursorX contains the current X value of the cursor where the left
// edge is 0. cursorY contains the row number where the first row of
// the current line is 0.
cursorX, cursorY int
// maxLine is the greatest value of cursorY so far.
maxLine int
termWidth, termHeight int
// outBuf contains the terminal data to be sent.
outBuf []byte
// remainder contains the remainder of any partial key sequences after
// a read. It aliases into inBuf.
remainder []byte
inBuf [256]byte
// history contains previously entered commands so that they can be
// accessed with the up and down keys.
history stRingBuffer
// historyIndex stores the currently accessed history entry, where zero
// means the immediately previous entry.
historyIndex int
// When navigating up and down the history it's possible to return to
// the incomplete, initial line. That value is stored in
// historyPending.
historyPending string
}
// NewTerminal runs a VT100 terminal on the given ReadWriter. If the ReadWriter is
// a local terminal, that terminal must first have been put into raw mode.
// prompt is a string that is written at the start of each input line (i.e.
// "> ").
func NewTerminal(c io.ReadWriter, prompt string) *Terminal {
return &Terminal{
Escape: &vt100EscapeCodes,
c: c,
prompt: []rune(prompt),
termWidth: 80,
termHeight: 24,
echo: true,
historyIndex: -1,
}
}
const (
keyCtrlD = 4
keyCtrlU = 21
keyEnter = '\r'
keyEscape = 27
keyBackspace = 127
keyUnknown = 0xd800 /* UTF-16 surrogate area */ + iota
keyUp
keyDown
keyLeft
keyRight
keyAltLeft
keyAltRight
keyHome
keyEnd
keyDeleteWord
keyDeleteLine
keyClearScreen
keyPasteStart
keyPasteEnd
)
var (
crlf = []byte{'\r', '\n'}
pasteStart = []byte{keyEscape, '[', '2', '0', '0', '~'}
pasteEnd = []byte{keyEscape, '[', '2', '0', '1', '~'}
)
// bytesToKey tries to parse a key sequence from b. If successful, it returns
// the key and the remainder of the input. Otherwise it returns utf8.RuneError.
func bytesToKey(b []byte, pasteActive bool) (rune, []byte) {
if len(b) == 0 {
return utf8.RuneError, nil
}
if !pasteActive {
switch b[0] {
case 1: // ^A
return keyHome, b[1:]
case 5: // ^E
return keyEnd, b[1:]
case 8: // ^H
return keyBackspace, b[1:]
case 11: // ^K
return keyDeleteLine, b[1:]
case 12: // ^L
return keyClearScreen, b[1:]
case 23: // ^W
return keyDeleteWord, b[1:]
}
}
if b[0] != keyEscape {
if !utf8.FullRune(b) {
return utf8.RuneError, b
}
r, l := utf8.DecodeRune(b)
return r, b[l:]
}
if !pasteActive && len(b) >= 3 && b[0] == keyEscape && b[1] == '[' {
switch b[2] {
case 'A':
return keyUp, b[3:]
case 'B':
return keyDown, b[3:]
case 'C':
return keyRight, b[3:]
case 'D':
return keyLeft, b[3:]
case 'H':
return keyHome, b[3:]
case 'F':
return keyEnd, b[3:]
}
}
if !pasteActive && len(b) >= 6 && b[0] == keyEscape && b[1] == '[' && b[2] == '1' && b[3] == ';' && b[4] == '3' {
switch b[5] {
case 'C':
return keyAltRight, b[6:]
case 'D':
return keyAltLeft, b[6:]
}
}
if !pasteActive && len(b) >= 6 && bytes.Equal(b[:6], pasteStart) {
return keyPasteStart, b[6:]
}
if pasteActive && len(b) >= 6 && bytes.Equal(b[:6], pasteEnd) {
return keyPasteEnd, b[6:]
}
// If we get here then we have a key that we don't recognise, or a
// partial sequence. It's not clear how one should find the end of a
// sequence without knowing them all, but it seems that [a-zA-Z~] only
// appears at the end of a sequence.
for i, c := range b[0:] {
if c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z' || c == '~' {
return keyUnknown, b[i+1:]
}
}
return utf8.RuneError, b
}
// queue appends data to the end of t.outBuf
func (t *Terminal) queue(data []rune) {
t.outBuf = append(t.outBuf, []byte(string(data))...)
}
var eraseUnderCursor = []rune{' ', keyEscape, '[', 'D'}
var space = []rune{' '}
func isPrintable(key rune) bool {
isInSurrogateArea := key >= 0xd800 && key <= 0xdbff
return key >= 32 && !isInSurrogateArea
}
// moveCursorToPos appends data to t.outBuf which will move the cursor to the
// given, logical position in the text.
func (t *Terminal) moveCursorToPos(pos int) {
if !t.echo {
return
}
x := visualLength(t.prompt) + pos
y := x / t.termWidth
x = x % t.termWidth
up := 0
if y < t.cursorY {
up = t.cursorY - y
}
down := 0
if y > t.cursorY {
down = y - t.cursorY
}
left := 0
if x < t.cursorX {
left = t.cursorX - x
}
right := 0
if x > t.cursorX {
right = x - t.cursorX
}
t.cursorX = x
t.cursorY = y
t.move(up, down, left, right)
}
func (t *Terminal) move(up, down, left, right int) {
movement := make([]rune, 3*(up+down+left+right))
m := movement
for i := 0; i < up; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'A'
m = m[3:]
}
for i := 0; i < down; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'B'
m = m[3:]
}
for i := 0; i < left; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'D'
m = m[3:]
}
for i := 0; i < right; i++ {
m[0] = keyEscape
m[1] = '['
m[2] = 'C'
m = m[3:]
}
t.queue(movement)
}
func (t *Terminal) clearLineToRight() {
op := []rune{keyEscape, '[', 'K'}
t.queue(op)
}
const maxLineLength = 4096
func (t *Terminal) setLine(newLine []rune, newPos int) {
if t.echo {
t.moveCursorToPos(0)
t.writeLine(newLine)
for i := len(newLine); i < len(t.line); i++ {
t.writeLine(space)
}
t.moveCursorToPos(newPos)
}
t.line = newLine
t.pos = newPos
}
func (t *Terminal) advanceCursor(places int) {
t.cursorX += places
t.cursorY += t.cursorX / t.termWidth
if t.cursorY > t.maxLine {
t.maxLine = t.cursorY
}
t.cursorX = t.cursorX % t.termWidth
if places > 0 && t.cursorX == 0 {
// Normally terminals will advance the current position
// when writing a character. But that doesn't happen
// for the last character in a line. However, when
// writing a character (except a new line) that causes
// a line wrap, the position will be advanced two
// places.
//
// So, if we are stopping at the end of a line, we
// need to write a newline so that our cursor can be
// advanced to the next line.
t.outBuf = append(t.outBuf, '\r', '\n')
}
}
func (t *Terminal) eraseNPreviousChars(n int) {
if n == 0 {
return
}
if t.pos < n {
n = t.pos
}
t.pos -= n
t.moveCursorToPos(t.pos)
copy(t.line[t.pos:], t.line[n+t.pos:])
t.line = t.line[:len(t.line)-n]
if t.echo {
t.writeLine(t.line[t.pos:])
for i := 0; i < n; i++ {
t.queue(space)
}
t.advanceCursor(n)
t.moveCursorToPos(t.pos)
}
}
// countToLeftWord returns then number of characters from the cursor to the
// start of the previous word.
func (t *Terminal) countToLeftWord() int {
if t.pos == 0 {
return 0
}
pos := t.pos - 1
for pos > 0 {
if t.line[pos] != ' ' {
break
}
pos--
}
for pos > 0 {
if t.line[pos] == ' ' {
pos++
break
}
pos--
}
return t.pos - pos
}
// countToRightWord returns then number of characters from the cursor to the
// start of the next word.
func (t *Terminal) countToRightWord() int {
pos := t.pos
for pos < len(t.line) {
if t.line[pos] == ' ' {
break
}
pos++
}
for pos < len(t.line) {
if t.line[pos] != ' ' {
break
}
pos++
}
return pos - t.pos
}
// visualLength returns the number of visible glyphs in s.
func visualLength(runes []rune) int {
inEscapeSeq := false
length := 0
for _, r := range runes {
switch {
case inEscapeSeq:
if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') {
inEscapeSeq = false
}
case r == '\x1b':
inEscapeSeq = true
default:
length++
}
}
return length
}
// handleKey processes the given key and, optionally, returns a line of text
// that the user has entered.
func (t *Terminal) handleKey(key rune) (line string, ok bool) {
if t.pasteActive && key != keyEnter {
t.addKeyToLine(key)
return
}
switch key {
case keyBackspace:
if t.pos == 0 {
return
}
t.eraseNPreviousChars(1)
case keyAltLeft:
// move left by a word.
t.pos -= t.countToLeftWord()
t.moveCursorToPos(t.pos)
case keyAltRight:
// move right by a word.
t.pos += t.countToRightWord()
t.moveCursorToPos(t.pos)
case keyLeft:
if t.pos == 0 {
return
}
t.pos--
t.moveCursorToPos(t.pos)
case keyRight:
if t.pos == len(t.line) {
return
}
t.pos++
t.moveCursorToPos(t.pos)
case keyHome:
if t.pos == 0 {
return
}
t.pos = 0
t.moveCursorToPos(t.pos)
case keyEnd:
if t.pos == len(t.line) {
return
}
t.pos = len(t.line)
t.moveCursorToPos(t.pos)
case keyUp:
entry, ok := t.history.NthPreviousEntry(t.historyIndex + 1)
if !ok {
return "", false
}
if t.historyIndex == -1 {
t.historyPending = string(t.line)
}
t.historyIndex++
runes := []rune(entry)
t.setLine(runes, len(runes))
case keyDown:
switch t.historyIndex {
case -1:
return
case 0:
runes := []rune(t.historyPending)
t.setLine(runes, len(runes))
t.historyIndex--
default:
entry, ok := t.history.NthPreviousEntry(t.historyIndex - 1)
if ok {
t.historyIndex--
runes := []rune(entry)
t.setLine(runes, len(runes))
}
}
case keyEnter:
t.moveCursorToPos(len(t.line))
t.queue([]rune("\r\n"))
line = string(t.line)
ok = true
t.line = t.line[:0]
t.pos = 0
t.cursorX = 0
t.cursorY = 0
t.maxLine = 0
case keyDeleteWord:
// Delete zero or more spaces and then one or more characters.
t.eraseNPreviousChars(t.countToLeftWord())
case keyDeleteLine:
// Delete everything from the current cursor position to the
// end of line.
for i := t.pos; i < len(t.line); i++ {
t.queue(space)
t.advanceCursor(1)
}
t.line = t.line[:t.pos]
t.moveCursorToPos(t.pos)
case keyCtrlD:
// Erase the character under the current position.
// The EOF case when the line is empty is handled in
// readLine().
if t.pos < len(t.line) {
t.pos++
t.eraseNPreviousChars(1)
}
case keyCtrlU:
t.eraseNPreviousChars(t.pos)
case keyClearScreen:
// Erases the screen and moves the cursor to the home position.
t.queue([]rune("\x1b[2J\x1b[H"))
t.queue(t.prompt)
t.cursorX, t.cursorY = 0, 0
t.advanceCursor(visualLength(t.prompt))
t.setLine(t.line, t.pos)
default:
if t.AutoCompleteCallback != nil {
prefix := string(t.line[:t.pos])
suffix := string(t.line[t.pos:])
t.lock.Unlock()
newLine, newPos, completeOk := t.AutoCompleteCallback(prefix+suffix, len(prefix), key)
t.lock.Lock()
if completeOk {
t.setLine([]rune(newLine), utf8.RuneCount([]byte(newLine)[:newPos]))
return
}
}
if !isPrintable(key) {
return
}
if len(t.line) == maxLineLength {
return
}
t.addKeyToLine(key)
}
return
}
// addKeyToLine inserts the given key at the current position in the current
// line.
func (t *Terminal) addKeyToLine(key rune) {
if len(t.line) == cap(t.line) {
newLine := make([]rune, len(t.line), 2*(1+len(t.line)))
copy(newLine, t.line)
t.line = newLine
}
t.line = t.line[:len(t.line)+1]
copy(t.line[t.pos+1:], t.line[t.pos:])
t.line[t.pos] = key
if t.echo {
t.writeLine(t.line[t.pos:])
}
t.pos++
t.moveCursorToPos(t.pos)
}
func (t *Terminal) writeLine(line []rune) {
for len(line) != 0 {
remainingOnLine := t.termWidth - t.cursorX
todo := len(line)
if todo > remainingOnLine {
todo = remainingOnLine
}
t.queue(line[:todo])
t.advanceCursor(visualLength(line[:todo]))
line = line[todo:]
}
}
// writeWithCRLF writes buf to w but replaces all occurrences of \n with \r\n.
func writeWithCRLF(w io.Writer, buf []byte) (n int, err error) {
for len(buf) > 0 {
i := bytes.IndexByte(buf, '\n')
todo := len(buf)
if i >= 0 {
todo = i
}
var nn int
nn, err = w.Write(buf[:todo])
n += nn
if err != nil {
return n, err
}
buf = buf[todo:]
if i >= 0 {
if _, err = w.Write(crlf); err != nil {
return n, err
}
n++
buf = buf[1:]
}
}
return n, nil
}
func (t *Terminal) Write(buf []byte) (n int, err error) {
t.lock.Lock()
defer t.lock.Unlock()
if t.cursorX == 0 && t.cursorY == 0 {
// This is the easy case: there's nothing on the screen that we
// have to move out of the way.
return writeWithCRLF(t.c, buf)
}
// We have a prompt and possibly user input on the screen. We
// have to clear it first.
t.move(0 /* up */, 0 /* down */, t.cursorX /* left */, 0 /* right */)
t.cursorX = 0
t.clearLineToRight()
for t.cursorY > 0 {
t.move(1 /* up */, 0, 0, 0)
t.cursorY--
t.clearLineToRight()
}
if _, err = t.c.Write(t.outBuf); err != nil {
return
}
t.outBuf = t.outBuf[:0]
if n, err = writeWithCRLF(t.c, buf); err != nil {
return
}
t.writeLine(t.prompt)
if t.echo {
t.writeLine(t.line)
}
t.moveCursorToPos(t.pos)
if _, err = t.c.Write(t.outBuf); err != nil {
return
}
t.outBuf = t.outBuf[:0]
return
}
// ReadPassword temporarily changes the prompt and reads a password, without
// echo, from the terminal.
func (t *Terminal) ReadPassword(prompt string) (line string, err error) {
t.lock.Lock()
defer t.lock.Unlock()
oldPrompt := t.prompt
t.prompt = []rune(prompt)
t.echo = false
line, err = t.readLine()
t.prompt = oldPrompt
t.echo = true
return
}
// ReadLine returns a line of input from the terminal.
func (t *Terminal) ReadLine() (line string, err error) {
t.lock.Lock()
defer t.lock.Unlock()
return t.readLine()
}
func (t *Terminal) readLine() (line string, err error) {
// t.lock must be held at this point
if t.cursorX == 0 && t.cursorY == 0 {
t.writeLine(t.prompt)
t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
}
lineIsPasted := t.pasteActive
for {
rest := t.remainder
lineOk := false
for !lineOk {
var key rune
key, rest = bytesToKey(rest, t.pasteActive)
if key == utf8.RuneError {
break
}
if !t.pasteActive {
if key == keyCtrlD {
if len(t.line) == 0 {
return "", io.EOF
}
}
if key == keyPasteStart {
t.pasteActive = true
if len(t.line) == 0 {
lineIsPasted = true
}
continue
}
} else if key == keyPasteEnd {
t.pasteActive = false
continue
}
if !t.pasteActive {
lineIsPasted = false
}
line, lineOk = t.handleKey(key)
}
if len(rest) > 0 {
n := copy(t.inBuf[:], rest)
t.remainder = t.inBuf[:n]
} else {
t.remainder = nil
}
t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
if lineOk {
if t.echo {
t.historyIndex = -1
t.history.Add(line)
}
if lineIsPasted {
err = ErrPasteIndicator
}
return
}
// t.remainder is a slice at the beginning of t.inBuf
// containing a partial key sequence
readBuf := t.inBuf[len(t.remainder):]
var n int
t.lock.Unlock()
n, err = t.c.Read(readBuf)
t.lock.Lock()
if err != nil {
return
}
t.remainder = t.inBuf[:n+len(t.remainder)]
}
}
// SetPrompt sets the prompt to be used when reading subsequent lines.
func (t *Terminal) SetPrompt(prompt string) {
t.lock.Lock()
defer t.lock.Unlock()
t.prompt = []rune(prompt)
}
func (t *Terminal) clearAndRepaintLinePlusNPrevious(numPrevLines int) {
// Move cursor to column zero at the start of the line.
t.move(t.cursorY, 0, t.cursorX, 0)
t.cursorX, t.cursorY = 0, 0
t.clearLineToRight()
for t.cursorY < numPrevLines {
// Move down a line
t.move(0, 1, 0, 0)
t.cursorY++
t.clearLineToRight()
}
// Move back to beginning.
t.move(t.cursorY, 0, 0, 0)
t.cursorX, t.cursorY = 0, 0
t.queue(t.prompt)
t.advanceCursor(visualLength(t.prompt))
t.writeLine(t.line)
t.moveCursorToPos(t.pos)
}
func (t *Terminal) SetSize(width, height int) error {
t.lock.Lock()
defer t.lock.Unlock()
if width == 0 {
width = 1
}
oldWidth := t.termWidth
t.termWidth, t.termHeight = width, height
switch {
case width == oldWidth:
// If the width didn't change then nothing else needs to be
// done.
return nil
case len(t.line) == 0 && t.cursorX == 0 && t.cursorY == 0:
// If there is nothing on current line and no prompt printed,
// just do nothing
return nil
case width < oldWidth:
// Some terminals (e.g. xterm) will truncate lines that were
// too long when shinking. Others, (e.g. gnome-terminal) will
// attempt to wrap them. For the former, repainting t.maxLine
// works great, but that behaviour goes badly wrong in the case
// of the latter because they have doubled every full line.
// We assume that we are working on a terminal that wraps lines
// and adjust the cursor position based on every previous line
// wrapping and turning into two. This causes the prompt on
// xterms to move upwards, which isn't great, but it avoids a
// huge mess with gnome-terminal.
if t.cursorX >= t.termWidth {
t.cursorX = t.termWidth - 1
}
t.cursorY *= 2
t.clearAndRepaintLinePlusNPrevious(t.maxLine * 2)
case width > oldWidth:
// If the terminal expands then our position calculations will
// be wrong in the future because we think the cursor is
// |t.pos| chars into the string, but there will be a gap at
// the end of any wrapped line.
//
// But the position will actually be correct until we move, so
// we can move back to the beginning and repaint everything.
t.clearAndRepaintLinePlusNPrevious(t.maxLine)
}
_, err := t.c.Write(t.outBuf)
t.outBuf = t.outBuf[:0]
return err
}
type pasteIndicatorError struct{}
func (pasteIndicatorError) Error() string {
return "terminal: ErrPasteIndicator not correctly handled"
}
// ErrPasteIndicator may be returned from ReadLine as the error, in addition
// to valid line data. It indicates that bracketed paste mode is enabled and
// that the returned line consists only of pasted data. Programs may wish to
// interpret pasted data more literally than typed data.
var ErrPasteIndicator = pasteIndicatorError{}
// SetBracketedPasteMode requests that the terminal bracket paste operations
// with markers. Not all terminals support this but, if it is supported, then
// enabling this mode will stop any autocomplete callback from running due to
// pastes. Additionally, any lines that are completely pasted will be returned
// from ReadLine with the error set to ErrPasteIndicator.
func (t *Terminal) SetBracketedPasteMode(on bool) {
if on {
io.WriteString(t.c, "\x1b[?2004h")
} else {
io.WriteString(t.c, "\x1b[?2004l")
}
}
// stRingBuffer is a ring buffer of strings.
type stRingBuffer struct {
// entries contains max elements.
entries []string
max int
// head contains the index of the element most recently added to the ring.
head int
// size contains the number of elements in the ring.
size int
}
func (s *stRingBuffer) Add(a string) {
if s.entries == nil {
const defaultNumEntries = 100
s.entries = make([]string, defaultNumEntries)
s.max = defaultNumEntries
}
s.head = (s.head + 1) % s.max
s.entries[s.head] = a
if s.size < s.max {
s.size++
}
}
// NthPreviousEntry returns the value passed to the nth previous call to Add.
// If n is zero then the immediately prior value is returned, if one, then the
// next most recent, and so on. If such an element doesn't exist then ok is
// false.
func (s *stRingBuffer) NthPreviousEntry(n int) (value string, ok bool) {
if n >= s.size {
return "", false
}
index := s.head - n
if index < 0 {
index += s.max
}
return s.entries[index], true
}
// readPasswordLine reads from reader until it finds \n or io.EOF.
// The slice returned does not include the \n.
// readPasswordLine also ignores any \r it finds.
func readPasswordLine(reader io.Reader) ([]byte, error) {
var buf [1]byte
var ret []byte
for {
n, err := reader.Read(buf[:])
if n > 0 {
switch buf[0] {
case '\n':
return ret, nil
case '\r':
// remove \r from passwords on Windows
default:
ret = append(ret, buf[0])
}
continue
}
if err != nil {
if err == io.EOF && len(ret) > 0 {
return ret, nil
}
return ret, err
}
}
}

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vendor/golang.org/x/crypto/ssh/terminal/util.go generated vendored Normal file
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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd linux,!appengine netbsd openbsd
// Package terminal provides support functions for dealing with terminals, as
// commonly found on UNIX systems.
//
// Putting a terminal into raw mode is the most common requirement:
//
// oldState, err := terminal.MakeRaw(0)
// if err != nil {
// panic(err)
// }
// defer terminal.Restore(0, oldState)
package terminal // import "golang.org/x/crypto/ssh/terminal"
import (
"golang.org/x/sys/unix"
)
// State contains the state of a terminal.
type State struct {
termios unix.Termios
}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
return err == nil
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
if err != nil {
return nil, err
}
oldState := State{termios: *termios}
// This attempts to replicate the behaviour documented for cfmakeraw in
// the termios(3) manpage.
termios.Iflag &^= unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON
termios.Oflag &^= unix.OPOST
termios.Lflag &^= unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN
termios.Cflag &^= unix.CSIZE | unix.PARENB
termios.Cflag |= unix.CS8
termios.Cc[unix.VMIN] = 1
termios.Cc[unix.VTIME] = 0
if err := unix.IoctlSetTermios(fd, ioctlWriteTermios, termios); err != nil {
return nil, err
}
return &oldState, nil
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
if err != nil {
return nil, err
}
return &State{termios: *termios}, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
return unix.IoctlSetTermios(fd, ioctlWriteTermios, &state.termios)
}
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
if err != nil {
return -1, -1, err
}
return int(ws.Col), int(ws.Row), nil
}
// passwordReader is an io.Reader that reads from a specific file descriptor.
type passwordReader int
func (r passwordReader) Read(buf []byte) (int, error) {
return unix.Read(int(r), buf)
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
if err != nil {
return nil, err
}
newState := *termios
newState.Lflag &^= unix.ECHO
newState.Lflag |= unix.ICANON | unix.ISIG
newState.Iflag |= unix.ICRNL
if err := unix.IoctlSetTermios(fd, ioctlWriteTermios, &newState); err != nil {
return nil, err
}
defer unix.IoctlSetTermios(fd, ioctlWriteTermios, termios)
return readPasswordLine(passwordReader(fd))
}

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vendor/golang.org/x/crypto/ssh/terminal/util_bsd.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin dragonfly freebsd netbsd openbsd
package terminal
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TIOCGETA
const ioctlWriteTermios = unix.TIOCSETA

10
vendor/golang.org/x/crypto/ssh/terminal/util_linux.go generated vendored Normal file
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// Copyright 2013 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package terminal
import "golang.org/x/sys/unix"
const ioctlReadTermios = unix.TCGETS
const ioctlWriteTermios = unix.TCSETS

58
vendor/golang.org/x/crypto/ssh/terminal/util_plan9.go generated vendored Normal file
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// Copyright 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package terminal provides support functions for dealing with terminals, as
// commonly found on UNIX systems.
//
// Putting a terminal into raw mode is the most common requirement:
//
// oldState, err := terminal.MakeRaw(0)
// if err != nil {
// panic(err)
// }
// defer terminal.Restore(0, oldState)
package terminal
import (
"fmt"
"runtime"
)
type State struct{}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
return false
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: MakeRaw not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
return nil, fmt.Errorf("terminal: GetState not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
return fmt.Errorf("terminal: Restore not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
return 0, 0, fmt.Errorf("terminal: GetSize not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
return nil, fmt.Errorf("terminal: ReadPassword not implemented on %s/%s", runtime.GOOS, runtime.GOARCH)
}

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// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build solaris
package terminal // import "golang.org/x/crypto/ssh/terminal"
import (
"golang.org/x/sys/unix"
"io"
"syscall"
)
// State contains the state of a terminal.
type State struct {
termios unix.Termios
}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
_, err := unix.IoctlGetTermio(fd, unix.TCGETA)
return err == nil
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
// see also: http://src.illumos.org/source/xref/illumos-gate/usr/src/lib/libast/common/uwin/getpass.c
val, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
oldState := *val
newState := oldState
newState.Lflag &^= syscall.ECHO
newState.Lflag |= syscall.ICANON | syscall.ISIG
newState.Iflag |= syscall.ICRNL
err = unix.IoctlSetTermios(fd, unix.TCSETS, &newState)
if err != nil {
return nil, err
}
defer unix.IoctlSetTermios(fd, unix.TCSETS, &oldState)
var buf [16]byte
var ret []byte
for {
n, err := syscall.Read(fd, buf[:])
if err != nil {
return nil, err
}
if n == 0 {
if len(ret) == 0 {
return nil, io.EOF
}
break
}
if buf[n-1] == '\n' {
n--
}
ret = append(ret, buf[:n]...)
if n < len(buf) {
break
}
}
return ret, nil
}
// MakeRaw puts the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
// see http://cr.illumos.org/~webrev/andy_js/1060/
func MakeRaw(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
oldState := State{termios: *termios}
termios.Iflag &^= unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON
termios.Oflag &^= unix.OPOST
termios.Lflag &^= unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN
termios.Cflag &^= unix.CSIZE | unix.PARENB
termios.Cflag |= unix.CS8
termios.Cc[unix.VMIN] = 1
termios.Cc[unix.VTIME] = 0
if err := unix.IoctlSetTermios(fd, unix.TCSETS, termios); err != nil {
return nil, err
}
return &oldState, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, oldState *State) error {
return unix.IoctlSetTermios(fd, unix.TCSETS, &oldState.termios)
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
termios, err := unix.IoctlGetTermios(fd, unix.TCGETS)
if err != nil {
return nil, err
}
return &State{termios: *termios}, nil
}
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
if err != nil {
return 0, 0, err
}
return int(ws.Col), int(ws.Row), nil
}

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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build windows
// Package terminal provides support functions for dealing with terminals, as
// commonly found on UNIX systems.
//
// Putting a terminal into raw mode is the most common requirement:
//
// oldState, err := terminal.MakeRaw(0)
// if err != nil {
// panic(err)
// }
// defer terminal.Restore(0, oldState)
package terminal
import (
"os"
"golang.org/x/sys/windows"
)
type State struct {
mode uint32
}
// IsTerminal returns true if the given file descriptor is a terminal.
func IsTerminal(fd int) bool {
var st uint32
err := windows.GetConsoleMode(windows.Handle(fd), &st)
return err == nil
}
// MakeRaw put the terminal connected to the given file descriptor into raw
// mode and returns the previous state of the terminal so that it can be
// restored.
func MakeRaw(fd int) (*State, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
raw := st &^ (windows.ENABLE_ECHO_INPUT | windows.ENABLE_PROCESSED_INPUT | windows.ENABLE_LINE_INPUT | windows.ENABLE_PROCESSED_OUTPUT)
if err := windows.SetConsoleMode(windows.Handle(fd), raw); err != nil {
return nil, err
}
return &State{st}, nil
}
// GetState returns the current state of a terminal which may be useful to
// restore the terminal after a signal.
func GetState(fd int) (*State, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
return &State{st}, nil
}
// Restore restores the terminal connected to the given file descriptor to a
// previous state.
func Restore(fd int, state *State) error {
return windows.SetConsoleMode(windows.Handle(fd), state.mode)
}
// GetSize returns the dimensions of the given terminal.
func GetSize(fd int) (width, height int, err error) {
var info windows.ConsoleScreenBufferInfo
if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
return 0, 0, err
}
return int(info.Size.X), int(info.Size.Y), nil
}
// ReadPassword reads a line of input from a terminal without local echo. This
// is commonly used for inputting passwords and other sensitive data. The slice
// returned does not include the \n.
func ReadPassword(fd int) ([]byte, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
old := st
st &^= (windows.ENABLE_ECHO_INPUT)
st |= (windows.ENABLE_PROCESSED_INPUT | windows.ENABLE_LINE_INPUT | windows.ENABLE_PROCESSED_OUTPUT)
if err := windows.SetConsoleMode(windows.Handle(fd), st); err != nil {
return nil, err
}
defer windows.SetConsoleMode(windows.Handle(fd), old)
var h windows.Handle
p, _ := windows.GetCurrentProcess()
if err := windows.DuplicateHandle(p, windows.Handle(fd), p, &h, 0, false, windows.DUPLICATE_SAME_ACCESS); err != nil {
return nil, err
}
f := os.NewFile(uintptr(h), "stdin")
defer f.Close()
return readPasswordLine(f)
}