add git config check and editing ability

Gopkg.lock

@@ -57,6 +57,14 @@
   pruneopts = "NUT"
   revision = "5c94acc5e6eb520f1bcd183974e01171cc4c23b3"
 
+[[projects]]
+  digest = "1:cd5ffc5bda4e0296ab3e4de90dbb415259c78e45e7fab13694b14cde8ab74541"
+  name = "github.com/tcnksm/go-gitconfig"
+  packages = ["."]
+  pruneopts = "NUT"
+  revision = "d154598bacbf4501c095a309753c5d4af66caa81"
+  version = "v0.1.2"
+
 [[projects]]
   branch = "master"
   digest = "1:4d8a79fbc6fa348fc94afa4235947c5196b7900ed71b94aa5fcbc7e273d150e1"
@@ -72,6 +80,7 @@
     "github.com/fatih/color",
     "github.com/golang-collections/collections/stack",
     "github.com/jesseduffield/gocui",
+    "github.com/tcnksm/go-gitconfig",
   ]
   solver-name = "gps-cdcl"
   solver-version = 1

gitcommands.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/fatih/color"
 	"github.com/jesseduffield/gocui"
+	gitconfig "github.com/tcnksm/go-gitconfig"
 )
 
 var (
@@ -267,6 +268,7 @@ func runCommand(command string) (string, error) {
 	commandStartTime := time.Now()
 	commandLog(command)
 	splitCmd := strings.Split(command, " ")
+	devLog(splitCmd)
 	cmdOut, err := exec.Command(splitCmd[0], splitCmd[1:]...).CombinedOutput()
 	devLog("run command time: ", time.Now().Sub(commandStartTime))
 	return sanitisedCommandOutput(cmdOut, err)
@@ -308,14 +310,16 @@ func gitAddPatch(g *gocui.Gui, filename string) {
 }
 
 func editFile(g *gocui.Gui, filename string) (string, error) {
-	editor := os.Getenv("VISUAL")
+	editor, _ := gitconfig.Global("core.editor")
+	if editor == "" {
+		editor = os.Getenv("VISUAL")
+	}
 	if editor == "" {
 		editor = os.Getenv("EDITOR")
 	}
 	if editor == "" {
-		editor = "vi"
+		return "", createErrorPanel(g, "No editor defined in $VISUAL, $EDITOR, or git config.")
 	}
-
 	runSubProcess(g, editor, filename)
 	return "", nil
 }
@@ -455,9 +459,9 @@ func removeFile(file GitFile) error {
 }
 
 func gitCommit(g *gocui.Gui, message string) (string, error) {
-	out, _ := runDirectCommand("git config --get commit.gpgsign")
-	if out != "" {
-		runSubProcess(g, "git", "commit", "-m", "\""+message+"\"")
+	gpgsign, _ := gitconfig.Global("commit.gpgsign")
+	if gpgsign != "" {
+		runSubProcess(g, "bash", "-c", "git commit -m \""+message+"\"")
 		return "", nil
 	}
 	return runDirectCommand("git commit -m \"" + message + "\"")

vendor/github.com/tcnksm/go-gitconfig/LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2014 tcnksm
+
+MIT License
+
+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.

vendor/github.com/tcnksm/go-gitconfig/gitconfig.go

@@ -0,0 +1,113 @@
+// Package gitconfig enables you to use `~/.gitconfig` values in Golang.
+//
+// For a full guide visit http://github.com/tcnksm/go-gitconfig
+//
+//  package main
+//
+//  import (
+//    "github.com/tcnksm/go-gitconfig"
+//    "fmt"
+//  )
+//
+//  func main() {
+//    user, err := gitconfig.Global("user.name")
+//    if err == nil {
+//      fmt.Println(user)
+//    }
+//  }
+//
+package gitconfig
+
+import (
+	"bytes"
+	"fmt"
+	"io/ioutil"
+	"os/exec"
+	"regexp"
+	"strings"
+	"syscall"
+)
+
+// Entire extracts configuration value from `$HOME/.gitconfig` file ,
+// `$GIT_CONFIG`, /etc/gitconfig or include.path files.
+func Entire(key string) (string, error) {
+	return execGitConfig(key)
+}
+
+// Global extracts configuration value from `$HOME/.gitconfig` file or `$GIT_CONFIG`.
+func Global(key string) (string, error) {
+	return execGitConfig("--global", key)
+}
+
+// Local extracts configuration value from current project repository.
+func Local(key string) (string, error) {
+	return execGitConfig("--local", key)
+}
+
+// GithubUser extracts github.user name from `Entire gitconfig`
+// This is same as Entire("github.user")
+func GithubUser() (string, error) {
+	return Entire("github.user")
+}
+
+// Username extracts git user name from `Entire gitconfig`.
+// This is same as Entire("user.name")
+func Username() (string, error) {
+	return Entire("user.name")
+}
+
+// Email extracts git user email from `$HOME/.gitconfig` file or `$GIT_CONFIG`.
+// This is same as Global("user.email")
+func Email() (string, error) {
+	return Entire("user.email")
+}
+
+// OriginURL extract remote origin url from current project repository.
+// This is same as Local("remote.origin.url")
+func OriginURL() (string, error) {
+	return Local("remote.origin.url")
+}
+
+// Repository extract repository name of current project repository.
+func Repository() (string, error) {
+	url, err := OriginURL()
+	if err != nil {
+		return "", err
+	}
+
+	repo := retrieveRepoName(url)
+	return repo, nil
+}
+
+// Github extracts github token from `Entire gitconfig`.
+// This is same as Entire("github.token")
+func GithubToken() (string, error) {
+	return Entire("github.token")
+}
+
+func execGitConfig(args ...string) (string, error) {
+	gitArgs := append([]string{"config", "--get", "--null"}, args...)
+	var stdout bytes.Buffer
+	cmd := exec.Command("git", gitArgs...)
+	cmd.Stdout = &stdout
+	cmd.Stderr = ioutil.Discard
+
+	err := cmd.Run()
+	if exitError, ok := err.(*exec.ExitError); ok {
+		if waitStatus, ok := exitError.Sys().(syscall.WaitStatus); ok {
+			if waitStatus.ExitStatus() == 1 {
+				return "", fmt.Errorf("the key `%s` is not found", args[len(args)-1])
+			}
+		}
+		return "", err
+	}
+
+	return strings.TrimRight(stdout.String(), "\000"), nil
+}
+
+var RepoNameRegexp = regexp.MustCompile(`.+/([^/]+)(\.git)?$`)
+
+func retrieveRepoName(url string) string {
+	matched := RepoNameRegexp.FindStringSubmatch(url)
+	return strings.TrimSuffix(matched[1], ".git")
+}