Add ammend commit action.

pkg/commands/git.go

@@ -299,8 +299,12 @@ func (c *GitCommand) usingGpg() bool {
 }
 
 // Commit commits to git
-func (c *GitCommand) Commit(message string) (*exec.Cmd, error) {
-	command := fmt.Sprintf("git commit -m %s", c.OSCommand.Quote(message))
+func (c *GitCommand) Commit(message string, amend bool) (*exec.Cmd, error) {
+	amendParam := ""
+	if amend {
+		amendParam = "--amend "
+	}
+	command := fmt.Sprintf("git commit %s-m %s", amendParam, c.OSCommand.Quote(message))
 	if c.usingGpg() {
 		return c.OSCommand.PrepareSubProcess(c.OSCommand.Platform.shell, c.OSCommand.Platform.shellArg, command), nil
 	}

pkg/gui/commit_message_panel.go

@@ -12,7 +12,8 @@ func (gui *Gui) handleCommitConfirm(g *gocui.Gui, v *gocui.View) error {
 	if message == "" {
 		return gui.createErrorPanel(g, gui.Tr.SLocalize("CommitWithoutMessageErr"))
 	}
-	sub, err := gui.GitCommand.Commit(message)
+	amendCommit := v.Title == gui.Tr.SLocalize("AmendLastCommit")
+	sub, err := gui.GitCommand.Commit(message, amendCommit)
 	if err != nil {
 		// TODO need to find a way to send through this error
 		if err != gui.Errors.ErrSubProcess {

pkg/gui/files_panel.go

@@ -198,7 +198,14 @@ func (gui *Gui) handleCommitPress(g *gocui.Gui, filesView *gocui.View) error {
 	if len(gui.stagedFiles()) == 0 && !gui.State.HasMergeConflicts {
 		return gui.createErrorPanel(g, gui.Tr.SLocalize("NoStagedFilesToCommit"))
 	}
+
 	commitMessageView := gui.getCommitMessageView(g)
+	if commitMessageView.Title == gui.Tr.SLocalize("AmendLastCommit") {
+		commitMessageView.Clear()
+		commitMessageView.SetCursor(0, 0)
+	}
+
+	commitMessageView.Title = gui.Tr.SLocalize("CommitMessage")
 	g.Update(func(g *gocui.Gui) error {
 		g.SetViewOnTop("commitMessage")
 		gui.switchFocus(g, filesView, commitMessageView)
@@ -208,6 +215,26 @@ func (gui *Gui) handleCommitPress(g *gocui.Gui, filesView *gocui.View) error {
 	return nil
 }
 
+func (gui *Gui) handleAmendCommitPress(g *gocui.Gui, filesView *gocui.View) error {
+	if len(gui.stagedFiles()) == 0 && !gui.State.HasMergeConflicts {
+		return gui.createErrorPanel(g, gui.Tr.SLocalize("NoStagedFilesToCommit"))
+	}
+	commitMessageView := gui.getCommitMessageView(g)
+	commitMessageView.Clear()
+	commitMessageView.Title = gui.Tr.SLocalize("AmendLastCommit")
+
+	g.Update(func(g *gocui.Gui) error {
+		g.SetViewOnTop("commitMessage")
+		gui.switchFocus(g, filesView, commitMessageView)
+		lastCommitName := gui.State.Commits[0].Name
+		commitMessageView.Write([]byte(lastCommitName))
+		commitMessageView.SetCursor(len(lastCommitName), 0)
+		gui.RenderCommitLength()
+		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 {

pkg/gui/keybindings.go

@@ -1,6 +1,7 @@
 package gui
 
 import "github.com/jesseduffield/gocui"
+import "strings"
 
 // Binding - a keybinding mapping a key and modifier to a handler. The keypress
 // is only handled if the given view has focus, or handled globally if the view
@@ -98,6 +99,12 @@ func (gui *Gui) GetKeybindings() []Binding {
 			Modifier:    gocui.ModNone,
 			Handler:     gui.handleCommitPress,
 			Description: gui.Tr.SLocalize("CommitChanges"),
+		}, {
+			ViewName:    "files",
+			Key:         'M',
+			Modifier:    gocui.ModNone,
+			Handler:     gui.handleAmendCommitPress,
+			Description: strings.ToLower(gui.Tr.SLocalize("AmendLastCommit")),
 		}, {
 			ViewName:    "files",
 			Key:         'C',

pkg/i18n/dutch.go

@@ -34,6 +34,9 @@ func addDutch(i18nObject *i18n.Bundle) error {
 		}, &i18n.Message{
 			ID:    "CommitChanges",
 			Other: "Commit Veranderingen",
+		}, &i18n.Message{
+			ID:    "AmendLastCommit",
+			Other: "Wijzig laatste commit",
 		}, &i18n.Message{
 			ID:    "CommitChangesWithEditor",
 			Other: "commit Veranderingen met de git editor",

pkg/i18n/english.go

@@ -42,6 +42,9 @@ func addEnglish(i18nObject *i18n.Bundle) error {
 		}, &i18n.Message{
 			ID:    "CommitChanges",
 			Other: "commit changes",
+		}, &i18n.Message{
+			ID:    "AmendLastCommit",
+			Other: "Amend last commit",
 		}, &i18n.Message{
 			ID:    "CommitChangesWithEditor",
 			Other: "commit changes using git editor",

pkg/i18n/polish.go

@@ -32,6 +32,9 @@ func addPolish(i18nObject *i18n.Bundle) error {
 		}, &i18n.Message{
 			ID:    "CommitChanges",
 			Other: "commituj zmiany",
+		}, &i18n.Message{
+			ID:    "AmendLastCommit",
+			Other: "Zmień ostatnie zatwierdzenie",
 		}, &i18n.Message{
 			ID:    "CommitChangesWithEditor",
 			Other: "commituj zmiany używając edytora z gita",