support searching in side panels

For now we're just doing side panels, because it will take more work
to support this in the various main panel contexts

go.mod

@@ -11,7 +11,7 @@ require (
 	github.com/golang/protobuf v1.3.2 // indirect
 	github.com/google/go-cmp v0.3.1 // indirect
 	github.com/integrii/flaggy v1.4.0
-	github.com/jesseduffield/gocui v0.3.1-0.20200201013258-57fdcf23edc5
+	github.com/jesseduffield/gocui v0.3.1-0.20200223105115-3e1f0f7c3efe
 	github.com/jesseduffield/pty v1.2.1
 	github.com/jesseduffield/rollrus v0.0.0-20190701125922-dd028cb0bfd7 // indirect
 	github.com/jesseduffield/termbox-go v0.0.0-20200130214842-1d31d1faa3c9 // indirect

go.sum

@@ -87,6 +87,8 @@ github.com/jesseduffield/gocui v0.3.1-0.20200131131454-a319843434ac h1:vp7I0RpFq
 github.com/jesseduffield/gocui v0.3.1-0.20200131131454-a319843434ac/go.mod h1:2RtZznzYKt8RLRwvFiSkXjU0Ei8WwHdubgnlaYH47dw=
 github.com/jesseduffield/gocui v0.3.1-0.20200201013258-57fdcf23edc5 h1:tE0w3tuL/bj1o5VMhjjE0ep6i7Fva+RYjKcMFcniJEY=
 github.com/jesseduffield/gocui v0.3.1-0.20200201013258-57fdcf23edc5/go.mod h1:2RtZznzYKt8RLRwvFiSkXjU0Ei8WwHdubgnlaYH47dw=
+github.com/jesseduffield/gocui v0.3.1-0.20200223105115-3e1f0f7c3efe h1:UQyebauOcBzbGq32kTXwEyuJaqp3BkI8JoCrGs2jijU=
+github.com/jesseduffield/gocui v0.3.1-0.20200223105115-3e1f0f7c3efe/go.mod h1:2RtZznzYKt8RLRwvFiSkXjU0Ei8WwHdubgnlaYH47dw=
 github.com/jesseduffield/pty v1.2.1 h1:7xYBiwNH0PpWqC8JmvrPq1a/ksNqyCavzWu9pbBGYWI=
 github.com/jesseduffield/pty v1.2.1/go.mod h1:7jlS40+UhOqkZJDIG1B/H21xnuET/+fvbbnHCa8wSIo=
 github.com/jesseduffield/roll v0.0.0-20190629104057-695be2e62b00 h1:+JaOkfBNYQYlGD7dgru8mCwYNEc5tRRI8mThlVANhSM=

pkg/config/app_config.go

@@ -283,6 +283,9 @@ keybinding:
     nextBlock: '<right>'
     prevBlock-alt: 'h'
     nextBlock-alt: 'l'
+    nextMatch: 'n'
+    prevMatch: 'N'
+    startSearch: '/'
     optionMenu: 'x'
     optionMenu-alt1: '?'
     select: '<space>'

pkg/gui/branches_panel.go

@@ -400,6 +400,7 @@ func (gui *Gui) onBranchesTabClick(tabIndex int) error {
 func (gui *Gui) switchBranchesPanelContext(context string) error {
 	branchesView := gui.getBranchesView()
 	branchesView.Context = context
+	branchesView.ClearSearch()
 
 	contextTabIndexMap := map[string]int{
 		"local-branches":  0,
@@ -444,3 +445,19 @@ func (gui *Gui) handleCreateResetToBranchMenu(g *gocui.Gui, v *gocui.View) error
 
 	return gui.createResetMenu(branch.Name)
 }
+
+func (gui *Gui) onBranchesPanelSearchSelect(selectedLine int) error {
+	branchesView := gui.getBranchesView()
+	switch branchesView.Context {
+	case "local-branches":
+		gui.State.Panels.Branches.SelectedLine = selectedLine
+		return gui.handleBranchSelect(gui.g, branchesView)
+	case "remotes":
+		gui.State.Panels.Remotes.SelectedLine = selectedLine
+		return gui.handleRemoteSelect(gui.g, branchesView)
+	case "remote-branches":
+		gui.State.Panels.RemoteBranches.SelectedLine = selectedLine
+		return gui.handleRemoteBranchSelect(gui.g, branchesView)
+	}
+	return nil
+}

pkg/gui/commit_files_panel.go

@@ -212,3 +212,8 @@ func (gui *Gui) enterCommitFile(selectedLineIdx int) error {
 
 	return enterTheFile(selectedLineIdx)
 }
+
+func (gui *Gui) onCommitFilesPanelSearchSelect(selectedLine int) error {
+	gui.State.Panels.CommitFiles.SelectedLine = selectedLine
+	return gui.handleCommitFileSelect(gui.g, gui.getCommitFilesView())
+}

pkg/gui/commits_panel.go

@@ -623,6 +623,7 @@ func (gui *Gui) onCommitsTabClick(tabIndex int) error {
 func (gui *Gui) switchCommitsPanelContext(context string) error {
 	commitsView := gui.getCommitsView()
 	commitsView.Context = context
+	commitsView.ClearSearch()
 
 	contextTabIndexMap := map[string]int{
 		"branch-commits": 0,
@@ -661,3 +662,16 @@ func (gui *Gui) handleCreateCommitResetMenu(g *gocui.Gui, v *gocui.View) error {
 
 	return gui.createResetMenu(commit.Sha)
 }
+
+func (gui *Gui) onCommitsPanelSearchSelect(selectedLine int) error {
+	commitsView := gui.getCommitsView()
+	switch commitsView.Context {
+	case "branch-commits":
+		gui.State.Panels.Commits.SelectedLine = selectedLine
+		return gui.handleCommitSelect(gui.g, commitsView)
+	case "reflog-commits":
+		gui.State.Panels.ReflogCommits.SelectedLine = selectedLine
+		return gui.handleReflogCommitSelect(gui.g, commitsView)
+	}
+	return nil
+}

pkg/gui/files_panel.go

@@ -574,3 +574,8 @@ func (gui *Gui) handleStashChanges(g *gocui.Gui, v *gocui.View) error {
 func (gui *Gui) handleCreateResetToUpstreamMenu(g *gocui.Gui, v *gocui.View) error {
 	return gui.createResetMenu("@{upstream}")
 }
+
+func (gui *Gui) onFilesPanelSearchSelect(selectedLine int) error {
+	gui.State.Panels.Files.SelectedLine = selectedLine
+	return gui.focusAndSelectFile(gui.g, gui.getFilesView())
+}

pkg/gui/gui.go

@@ -172,6 +172,12 @@ type panelStates struct {
 	Status         *statusPanelState
 }
 
+type searchingState struct {
+	view         *gocui.View
+	isSearching  bool
+	searchString string
+}
+
 type guiState struct {
 	Files                []*commands.File
 	Branches             []*commands.Branch
@@ -195,6 +201,7 @@ type guiState struct {
 	RetainOriginalDir    bool
 	IsRefreshingFiles    bool
 	RefreshingFilesMutex sync.Mutex
+	Searching            searchingState
 }
 
 // for now the split view will always be on
@@ -338,6 +345,10 @@ func (gui *Gui) onFocusLost(v *gocui.View, newView *gocui.View) error {
 	if v == nil {
 		return nil
 	}
+	if v.IsSearching() && newView.Name() != "search" {
+		gui.State.Searching.isSearching = false
+		v.ClearSearch()
+	}
 	switch v.Name() {
 	case "branches":
 		if v.Context == "local-branches" {
@@ -500,7 +511,6 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		}
 	}
 
-	userConfig := gui.Config.GetUserConfig()
 	v, err := g.SetView(main, leftSideWidth+panelSpacing, 0, mainPanelRight, mainPanelBottom, gocui.LEFT)
 	if err != nil {
 		if err.Error() != "unknown view" {
@@ -510,6 +520,9 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		v.Wrap = true
 		v.FgColor = textColor
 		v.IgnoreCarriageReturns = true
+		v.SetOnSelectItem(gui.onSelectItemWrapper(func(selectedLine int) error {
+			return nil
+		}))
 	}
 
 	hiddenViewOffset := 0
@@ -542,6 +555,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		}
 		filesView.Highlight = true
 		filesView.Title = gui.Tr.SLocalize("FilesTitle")
+		filesView.SetOnSelectItem(gui.onSelectItemWrapper(gui.onFilesPanelSearchSelect))
 	}
 
 	branchesView, err := g.SetViewBeneath("branches", "files", vHeights["branches"])
@@ -552,6 +566,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		branchesView.Title = gui.Tr.SLocalize("BranchesTitle")
 		branchesView.Tabs = []string{"Local Branches", "Remotes", "Tags"}
 		branchesView.FgColor = textColor
+		branchesView.SetOnSelectItem(gui.onSelectItemWrapper(gui.onBranchesPanelSearchSelect))
 	}
 
 	if v, err := g.SetViewBeneath("commitFiles", "branches", vHeights["commits"]); err != nil {
@@ -560,6 +575,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		}
 		v.Title = gui.Tr.SLocalize("CommitFiles")
 		v.FgColor = textColor
+		v.SetOnSelectItem(gui.onSelectItemWrapper(gui.onCommitFilesPanelSearchSelect))
 	}
 
 	commitsView, err := g.SetViewBeneath("commits", "branches", vHeights["commits"])
@@ -570,6 +586,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		commitsView.Title = gui.Tr.SLocalize("CommitsTitle")
 		commitsView.Tabs = []string{"Commits", "Reflog"}
 		commitsView.FgColor = textColor
+		commitsView.SetOnSelectItem(gui.onSelectItemWrapper(gui.onCommitsPanelSearchSelect))
 	}
 
 	stashView, err := g.SetViewBeneath("stash", "commits", vHeights["stash"])
@@ -579,6 +596,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		}
 		stashView.Title = gui.Tr.SLocalize("StashTitle")
 		stashView.FgColor = textColor
+		stashView.SetOnSelectItem(gui.onSelectItemWrapper(gui.onStashPanelSearchSelect))
 	}
 
 	if v, err := g.SetView("options", appStatusOptionsBoundary-1, height-2, optionsVersionBoundary-1, height, 0); err != nil {
@@ -586,7 +604,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 			return err
 		}
 		v.Frame = false
-		v.FgColor = theme.GetGocuiColor(userConfig.GetStringSlice("gui.theme.optionsTextColor"))
+		v.FgColor = theme.OptionsColor
 	}
 
 	if gui.getCommitMessageView() == nil {
@@ -619,6 +637,35 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 		}
 	}
 
+	searchViewOffset := hiddenViewOffset
+	if gui.State.Searching.isSearching {
+		searchViewOffset = 0
+	}
+
+	// this view takes up one character. Its only purpose is to show the slash when searching
+	searchPrefix := "search: "
+	if searchPrefixView, err := g.SetView("searchPrefix", appStatusOptionsBoundary-1+searchViewOffset, height-2+searchViewOffset, len(searchPrefix)+searchViewOffset, height+searchViewOffset, 0); err != nil {
+		if err.Error() != "unknown view" {
+			return err
+		}
+
+		searchPrefixView.BgColor = gocui.ColorDefault
+		searchPrefixView.FgColor = gocui.ColorGreen
+		searchPrefixView.Frame = false
+		gui.setViewContent(gui.g, searchPrefixView, searchPrefix)
+	}
+
+	if searchView, err := g.SetView("search", appStatusOptionsBoundary-1+searchViewOffset+len(searchPrefix), height-2+searchViewOffset, optionsVersionBoundary+searchViewOffset, height+searchViewOffset, 0); err != nil {
+		if err.Error() != "unknown view" {
+			return err
+		}
+
+		searchView.BgColor = gocui.ColorDefault
+		searchView.FgColor = gocui.ColorGreen
+		searchView.Frame = false
+		searchView.Editable = true
+	}
+
 	if appStatusView, err := g.SetView("appStatus", -1, height-2, width, height, 0); err != nil {
 		if err.Error() != "unknown view" {
 			return err
@@ -826,6 +873,12 @@ func (gui *Gui) Run() error {
 		return err
 	}
 	defer g.Close()
+
+	g.OnSearchEscape = gui.onSearchEscape
+	g.SearchEscapeKey = gui.getKey("universal.return")
+	g.NextSearchMatchKey = gui.getKey("universal.nextMatch")
+	g.PrevSearchMatchKey = gui.getKey("universal.prevMatch")
+
 	gui.stopChan = make(chan struct{})
 
 	g.ASCII = runtime.GOOS == "windows" && runewidth.IsEastAsian()

pkg/gui/keybindings.go

@@ -1398,6 +1398,18 @@ func (gui *Gui) GetInitialKeybindings() []*Binding {
 			Modifier: gocui.ModNone,
 			Handler:  gui.handleCommitFilesClick,
 		},
+		{
+			ViewName: "search",
+			Key:      gocui.KeyEnter,
+			Modifier: gocui.ModNone,
+			Handler:  gui.handleSearch,
+		},
+		{
+			ViewName: "search",
+			Key:      gui.getKey("universal.return"),
+			Modifier: gocui.ModNone,
+			Handler:  gui.handleSearchEscape,
+		},
 	}
 
 	for _, viewName := range []string{"status", "branches", "files", "commits", "commitFiles", "stash", "menu"} {
@@ -1424,6 +1436,7 @@ func (gui *Gui) GetInitialKeybindings() []*Binding {
 			{ViewName: listView.viewName, Contexts: []string{listView.context}, Key: gui.getKey("universal.nextItem"), Modifier: gocui.ModNone, Handler: listView.handleNextLine},
 			{ViewName: listView.viewName, Contexts: []string{listView.context}, Key: gocui.MouseWheelDown, Modifier: gocui.ModNone, Handler: listView.handleNextLine},
 			{ViewName: listView.viewName, Contexts: []string{listView.context}, Key: gocui.MouseLeft, Modifier: gocui.ModNone, Handler: listView.handleClick},
+			{ViewName: listView.viewName, Contexts: []string{listView.context}, Key: gui.getKey("universal.startSearch"), Modifier: gocui.ModNone, Handler: gui.handleOpenSearch},
 		}...)
 	}
 

pkg/gui/searching.go

@@ -0,0 +1,89 @@
+package gui
+
+import (
+	"fmt"
+
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/theme"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+func (gui *Gui) handleOpenSearch(g *gocui.Gui, v *gocui.View) error {
+	gui.State.Searching.isSearching = true
+	gui.State.Searching.view = v
+	gui.renderString(gui.g, "search", "")
+	gui.switchFocus(gui.g, v, gui.getSearchView())
+
+	return nil
+}
+
+func (gui *Gui) handleSearch(g *gocui.Gui, v *gocui.View) error {
+	gui.State.Searching.searchString = gui.getSearchView().Buffer()
+	gui.switchFocus(gui.g, nil, gui.State.Searching.view)
+	if err := gui.State.Searching.view.Search(gui.State.Searching.searchString); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (gui *Gui) onSelectItemWrapper(innerFunc func(int) error) func(int, int, int) error {
+	return func(y int, index int, total int) error {
+		if total == 0 {
+			gui.renderString(
+				gui.g,
+				"search",
+				fmt.Sprintf(
+					"no matches for '%s' %s",
+					gui.State.Searching.searchString,
+					utils.ColoredString(
+						fmt.Sprintf("%s: exit search mode", gui.getKeyDisplay("universal.return")),
+						theme.OptionsFgColor,
+					),
+				),
+			)
+			return nil
+		}
+		gui.renderString(
+			gui.g,
+			"search",
+			fmt.Sprintf(
+				"matches for '%s' (%d of %d) %s",
+				gui.State.Searching.searchString,
+				index+1,
+				total,
+				utils.ColoredString(
+					fmt.Sprintf(
+						"%s: next match, %s: previous match, %s: exit search mode",
+						gui.getKeyDisplay("universal.nextMatch"),
+						gui.getKeyDisplay("universal.prevMatch"),
+						gui.getKeyDisplay("universal.return"),
+					),
+					theme.OptionsFgColor,
+				),
+			),
+		)
+		if err := innerFunc(y); err != nil {
+			return err
+		}
+		return nil
+	}
+}
+
+func (gui *Gui) onSearchEscape() error {
+	gui.State.Searching.isSearching = false
+	gui.State.Searching.view = nil
+	return nil
+}
+
+func (gui *Gui) handleSearchEscape(g *gocui.Gui, v *gocui.View) error {
+	if err := gui.switchFocus(gui.g, nil, gui.State.Searching.view); err != nil {
+		return err
+	}
+
+	if err := gui.onSearchEscape(); err != nil {
+		return err
+	}
+
+	return nil
+}

pkg/gui/stash_panel.go

@@ -122,3 +122,8 @@ func (gui *Gui) handleStashSave(stashFunc func(message string) error) error {
 		return gui.refreshFiles()
 	})
 }
+
+func (gui *Gui) onStashPanelSearchSelect(selectedLine int) error {
+	gui.State.Panels.Stash.SelectedLine = selectedLine
+	return gui.handleStashEntrySelect(gui.g, gui.getStashView())
+}

pkg/gui/view_helpers.go

@@ -135,6 +135,8 @@ func (gui *Gui) newLineFocused(g *gocui.Gui, v *gocui.View) error {
 		}
 		v.Highlight = false
 		return nil
+	case "search":
+		return nil
 	default:
 		panic(gui.Tr.SLocalize("NoViewMachingNewLineFocusedSwitchStatement"))
 	}
@@ -218,32 +220,7 @@ func (gui *Gui) resetOrigin(v *gocui.View) error {
 
 // if the cursor down past the last item, move it to the last line
 func (gui *Gui) focusPoint(cx int, cy int, lineCount int, v *gocui.View) error {
-	if cy < 0 || cy > lineCount {
+	v.FocusPoint(cx, cy)
-		return nil
-	}
-	ox, oy := v.Origin()
-	_, height := v.Size()
-
-	ly := height - 1
-	if ly == -1 {
-		ly = 0
-	}
-
-	// if line is above origin, move origin and set cursor to zero
-	// if line is below origin + height, move origin and set cursor to max
-	// otherwise set cursor to value - origin
-	if ly > lineCount {
-		_ = v.SetCursor(cx, cy)
-		_ = v.SetOrigin(ox, 0)
-	} else if cy < oy {
-		_ = v.SetCursor(cx, 0)
-		_ = v.SetOrigin(ox, cy)
-	} else if cy > oy+ly {
-		_ = v.SetCursor(cx, ly)
-		_ = v.SetOrigin(ox, cy-ly)
-	} else {
-		_ = v.SetCursor(cx, cy-oy)
-	}
 	return nil
 }
 
@@ -268,6 +245,9 @@ func (gui *Gui) renderString(g *gocui.Gui, viewName, s string) error {
 		if err := v.SetOrigin(0, 0); err != nil {
 			return err
 		}
+		if err := v.SetCursor(0, 0); err != nil {
+			return err
+		}
 		return gui.setViewContent(gui.g, v, s)
 	})
 	return nil
@@ -333,6 +313,11 @@ func (gui *Gui) getMenuView() *gocui.View {
 	return v
 }
 
+func (gui *Gui) getSearchView() *gocui.View {
+	v, _ := gui.g.View("search")
+	return v
+}
+
 func (gui *Gui) trimmedContent(v *gocui.View) string {
 	return strings.TrimSpace(v.Buffer())
 }

pkg/theme/theme.go

@@ -23,6 +23,10 @@ var (
 
 	// SelectedLineBgColor is the background color for the selected line
 	SelectedLineBgColor color.Attribute
+
+	OptionsFgColor color.Attribute
+
+	OptionsColor gocui.Attribute
 )
 
 // UpdateTheme updates all theme variables
@@ -30,6 +34,8 @@ func UpdateTheme(userConfig *viper.Viper) {
 	ActiveBorderColor = GetGocuiColor(userConfig.GetStringSlice("gui.theme.activeBorderColor"))
 	InactiveBorderColor = GetGocuiColor(userConfig.GetStringSlice("gui.theme.inactiveBorderColor"))
 	SelectedLineBgColor = GetBgColor(userConfig.GetStringSlice("gui.theme.selectedLineBgColor"))
+	OptionsColor = GetGocuiColor(userConfig.GetStringSlice("gui.theme.optionsTextColor"))
+	OptionsFgColor = GetFgColor(userConfig.GetStringSlice("gui.theme.optionsTextColor"))
 
 	isLightTheme := userConfig.GetBool("gui.theme.lightTheme")
 	if isLightTheme {

vendor/github.com/jesseduffield/gocui/escape.go

@@ -6,7 +6,6 @@ package gocui
 
 import (
 	"strconv"
-	"sync"
 
 	"github.com/go-errors/errors"
 )
@@ -17,7 +16,6 @@ type escapeInterpreter struct {
 	csiParam               []string
 	curFgColor, curBgColor Attribute
 	mode                   OutputMode
-	mutex                  sync.Mutex
 }
 
 type escapeState int
@@ -37,9 +35,6 @@ var (
 
 // runes in case of error will output the non-parsed runes as a string.
 func (ei *escapeInterpreter) runes() []rune {
-	ei.mutex.Lock()
-	defer ei.mutex.Unlock()
-
 	switch ei.state {
 	case stateNone:
 		return []rune{0x1b}
@@ -72,9 +67,6 @@ func newEscapeInterpreter(mode OutputMode) *escapeInterpreter {
 
 // reset sets the escapeInterpreter in initial state.
 func (ei *escapeInterpreter) reset() {
-	ei.mutex.Lock()
-	defer ei.mutex.Unlock()
-
 	ei.state = stateNone
 	ei.curFgColor = ColorDefault
 	ei.curBgColor = ColorDefault
@@ -85,9 +77,6 @@ func (ei *escapeInterpreter) reset() {
 // of an escape sequence, and as such should not be printed verbatim. Otherwise,
 // it's not an escape sequence.
 func (ei *escapeInterpreter) parseOne(ch rune) (isEscape bool, err error) {
-	ei.mutex.Lock()
-	defer ei.mutex.Unlock()
-
 	// Sanity checks
 	if len(ei.csiParam) > 20 {
 		return false, errCSITooLong
@@ -191,9 +180,6 @@ func (ei *escapeInterpreter) outputNormal() error {
 //   0x11 - 0xe8: 216 different colors
 //   0xe9 - 0x1ff: 24 different shades of grey
 func (ei *escapeInterpreter) output256() error {
-	ei.mutex.Lock()
-	defer ei.mutex.Unlock()
-
 	if len(ei.csiParam) < 3 {
 		return ei.outputNormal()
 	}

vendor/github.com/jesseduffield/gocui/gui.go

@@ -94,6 +94,12 @@ type Gui struct {
 	// tickingMutex ensures we don't have two loops ticking. The point of 'ticking'
 	// is to refresh the gui rapidly so that loader characters can be animated.
 	tickingMutex sync.Mutex
+
+	OnSearchEscape func() error
+	// these keys must either be of type Key of rune
+	SearchEscapeKey    interface{}
+	NextSearchMatchKey interface{}
+	PrevSearchMatchKey interface{}
 }
 
 // NewGui returns a new Gui object with a given output mode.
@@ -124,6 +130,11 @@ func NewGui(mode OutputMode, supportOverlaps bool) (*Gui, error) {
 	// view edges
 	g.SupportOverlaps = supportOverlaps
 
+	// default keys for when searching strings in a view
+	g.SearchEscapeKey = KeyEsc
+	g.NextSearchMatchKey = 'n'
+	g.PrevSearchMatchKey = 'N'
+
 	return g, nil
 }
 
@@ -803,6 +814,23 @@ func (g *Gui) execKeybindings(v *View, ev *termbox.Event) (matched bool, err err
 	var globalKb *keybinding
 	var matchingParentViewKb *keybinding
 
+	// if we're searching, and we've hit n/N/Esc, we ignore the default keybinding
+	if v.IsSearching() && Modifier(ev.Mod) == ModNone {
+		if eventMatchesKey(ev, g.NextSearchMatchKey) {
+			return true, v.gotoNextMatch()
+		} else if eventMatchesKey(ev, g.PrevSearchMatchKey) {
+			return true, v.gotoPreviousMatch()
+		} else if eventMatchesKey(ev, g.SearchEscapeKey) {
+			v.searcher.clearSearch()
+			if g.OnSearchEscape != nil {
+				if err := g.OnSearchEscape(); err != nil {
+					return true, err
+				}
+			}
+			return true, nil
+		}
+	}
+
 	for _, kb := range g.keybindings {
 		if kb.handler == nil {
 			continue

vendor/github.com/jesseduffield/gocui/keybinding.go

@@ -29,6 +29,20 @@ func newKeybinding(viewname string, contexts []string, key Key, ch rune, mod Mod
 	return kb
 }
 
+func eventMatchesKey(ev *termbox.Event, key interface{}) bool {
+	// assuming ModNone for now
+	if Modifier(ev.Mod) != ModNone {
+		return false
+	}
+
+	k, ch, err := getKey(key)
+	if err != nil {
+		return false
+	}
+
+	return k == Key(ev.Key) && ch == ev.Ch
+}
+
 // matchKeypress returns if the keybinding matches the keypress.
 func (kb *keybinding) matchKeypress(key Key, ch rune, mod Modifier) bool {
 	return kb.key == key && kb.ch == ch && kb.mod == mod

vendor/github.com/jesseduffield/gocui/view.go

@@ -105,6 +105,137 @@ type View struct {
 	ParentView *View
 
 	Context string // this is for assigning keybindings to a view only in certain contexts
+
+	searcher *searcher
+}
+
+type searcher struct {
+	searchString       string
+	searchPositions    []cellPos
+	currentSearchIndex int
+	onSelectItem       func(int, int, int) error
+}
+
+func (v *View) SetOnSelectItem(onSelectItem func(int, int, int) error) {
+	v.searcher.onSelectItem = onSelectItem
+}
+
+func (v *View) gotoNextMatch() error {
+	if len(v.searcher.searchPositions) == 0 {
+		return nil
+	}
+	if v.searcher.currentSearchIndex == len(v.searcher.searchPositions)-1 {
+		v.searcher.currentSearchIndex = 0
+	} else {
+		v.searcher.currentSearchIndex++
+	}
+	return v.SelectSearchResult(v.searcher.currentSearchIndex)
+}
+
+func (v *View) gotoPreviousMatch() error {
+	if len(v.searcher.searchPositions) == 0 {
+		return nil
+	}
+	if v.searcher.currentSearchIndex == 0 {
+		if len(v.searcher.searchPositions) > 0 {
+			v.searcher.currentSearchIndex = len(v.searcher.searchPositions) - 1
+		}
+	} else {
+		v.searcher.currentSearchIndex--
+	}
+	return v.SelectSearchResult(v.searcher.currentSearchIndex)
+}
+
+func (v *View) SelectSearchResult(index int) error {
+	y := v.searcher.searchPositions[index].y
+	v.FocusPoint(0, y)
+	if v.searcher.onSelectItem != nil {
+		return v.searcher.onSelectItem(y, index, len(v.searcher.searchPositions))
+	}
+	return nil
+}
+
+func (v *View) Search(str string) error {
+	v.writeMutex.Lock()
+	defer v.writeMutex.Unlock()
+
+	v.searcher.search(str)
+	v.updateSearchPositions()
+	if len(v.searcher.searchPositions) > 0 {
+		// get the first result past the current cursor
+		currentIndex := 0
+		adjustedY := v.oy + v.cy
+		adjustedX := v.ox + v.cx
+		for i, pos := range v.searcher.searchPositions {
+			if pos.y > adjustedY || (pos.y == adjustedY && pos.x > adjustedX) {
+				currentIndex = i
+				break
+			}
+		}
+		v.searcher.currentSearchIndex = currentIndex
+		return v.SelectSearchResult(currentIndex)
+	} else {
+		return v.searcher.onSelectItem(-1, -1, 0)
+	}
+	return nil
+}
+
+func (v *View) ClearSearch() {
+	v.searcher.clearSearch()
+}
+
+func (v *View) IsSearching() bool {
+	return v.searcher.searchString != ""
+}
+
+func (v *View) FocusPoint(cx int, cy int) {
+	lineCount := len(v.lines)
+	if cy < 0 || cy > lineCount {
+		return
+	}
+	_, height := v.Size()
+
+	ly := height - 1
+	if ly == -1 {
+		ly = 0
+	}
+
+	// if line is above origin, move origin and set cursor to zero
+	// if line is below origin + height, move origin and set cursor to max
+	// otherwise set cursor to value - origin
+	if ly > lineCount {
+		v.cx = cx
+		v.cy = cy
+		v.oy = 0
+	} else if cy < v.oy {
+		v.cx = cx
+		v.cy = 0
+		v.oy = cy
+	} else if cy > v.oy+ly {
+		v.cx = cx
+		v.cy = ly
+		v.oy = cy - ly
+	} else {
+		v.cx = cx
+		v.cy = cy - v.oy
+	}
+}
+
+func (s *searcher) search(str string) {
+	s.searchString = str
+	s.searchPositions = []cellPos{}
+	s.currentSearchIndex = 0
+}
+
+func (s *searcher) clearSearch() {
+	s.searchString = ""
+	s.searchPositions = []cellPos{}
+	s.currentSearchIndex = 0
+}
+
+type cellPos struct {
+	x int
+	y int
 }
 
 type viewLine struct {
@@ -140,6 +271,7 @@ func newView(name string, x0, y0, x1, y1 int, mode OutputMode) *View {
 		Editor:   DefaultEditor,
 		tainted:  true,
 		ei:       newEscapeInterpreter(mode),
+		searcher: &searcher{},
 	}
 	return v
 }
@@ -331,8 +463,35 @@ func (v *View) Rewind() {
 	v.readOffset = 0
 }
 
+func (v *View) updateSearchPositions() {
+	if v.searcher.searchString != "" {
+		v.searcher.searchPositions = []cellPos{}
+		for y, line := range v.lines {
+		lineLoop:
+			for x, _ := range line {
+				if line[x].chr == rune(v.searcher.searchString[0]) {
+					for offset := 1; offset < len(v.searcher.searchString); offset++ {
+						if len(line)-1 < x+offset {
+							continue lineLoop
+						}
+						if line[x+offset].chr != rune(v.searcher.searchString[offset]) {
+							continue lineLoop
+						}
+					}
+					v.searcher.searchPositions = append(v.searcher.searchPositions, cellPos{x: x, y: y})
+				}
+			}
+		}
+	}
+
+}
+
 // draw re-draws the view's contents.
 func (v *View) draw() error {
+	v.writeMutex.Lock()
+	defer v.writeMutex.Unlock()
+
+	v.updateSearchPositions()
 	maxX, maxY := v.Size()
 
 	if v.Wrap {
@@ -392,6 +551,13 @@ func (v *View) draw() error {
 			if bgColor == ColorDefault {
 				bgColor = v.BgColor
 			}
+			if matched, selected := v.isPatternMatchedRune(x, y); matched {
+				if selected {
+					bgColor = ColorCyan
+				} else {
+					bgColor = ColorYellow
+				}
+			}
 
 			if err := v.setRune(x, y, c.chr, fgColor, bgColor); err != nil {
 				return err
@@ -403,6 +569,18 @@ func (v *View) draw() error {
 	return nil
 }
 
+func (v *View) isPatternMatchedRune(x, y int) (bool, bool) {
+	searchStringLength := len(v.searcher.searchString)
+	for i, pos := range v.searcher.searchPositions {
+		adjustedY := y + v.oy
+		adjustedX := x + v.ox
+		if adjustedY == pos.y && adjustedX >= pos.x && adjustedX < pos.x+searchStringLength {
+			return true, i == v.searcher.currentSearchIndex
+		}
+	}
+	return false, false
+}
+
 // realPosition returns the position in the internal buffer corresponding to the
 // point (x, y) of the view.
 func (v *View) realPosition(vx, vy int) (x, y int, err error) {

vendor/modules.txt

@@ -32,7 +32,7 @@ github.com/hashicorp/hcl/json/token
 github.com/integrii/flaggy
 # github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99
 github.com/jbenet/go-context/io
-# github.com/jesseduffield/gocui v0.3.1-0.20200201013258-57fdcf23edc5
+# github.com/jesseduffield/gocui v0.3.1-0.20200223105115-3e1f0f7c3efe
 github.com/jesseduffield/gocui
 # github.com/jesseduffield/pty v1.2.1
 github.com/jesseduffield/pty