fix commit message char count

pkg/gui/commit_message_panel.go

@@ -83,3 +83,38 @@ func (gui *Gui) RenderCommitLength() {
 	v := gui.getCommitMessageView()
 	v.Subtitle = gui.getBufferLength(v)
 }
+
+// we've just copy+pasted the editor from gocui to here so that we can also re-
+// render the commit message length on each keypress
+func (gui *Gui) commitMessageEditor(v *gocui.View, key gocui.Key, ch rune, mod gocui.Modifier) {
+	switch {
+	case key == gocui.KeyBackspace || key == gocui.KeyBackspace2:
+		v.EditDelete(true)
+	case key == gocui.KeyDelete:
+		v.EditDelete(false)
+	case key == gocui.KeyArrowDown:
+		v.MoveCursor(0, 1, false)
+	case key == gocui.KeyArrowUp:
+		v.MoveCursor(0, -1, false)
+	case key == gocui.KeyArrowLeft:
+		v.MoveCursor(-1, 0, false)
+	case key == gocui.KeyArrowRight:
+		v.MoveCursor(1, 0, false)
+	case key == gocui.KeyTab:
+		v.EditNewLine()
+	case key == gocui.KeySpace:
+		v.EditWrite(' ')
+	case key == gocui.KeyInsert:
+		v.Overwrite = !v.Overwrite
+	case key == gocui.KeyCtrlU:
+		v.EditDeleteToStartOfLine()
+	case key == gocui.KeyCtrlA:
+		v.EditGotoToStartOfLine()
+	case key == gocui.KeyCtrlE:
+		v.EditGotoToEndOfLine()
+	default:
+		v.EditWrite(ch)
+	}
+
+	gui.RenderCommitLength()
+}

pkg/gui/gui.go

@@ -553,6 +553,7 @@ func (gui *Gui) layout(g *gocui.Gui) error {
 			commitMessageView.Title = gui.Tr.SLocalize("CommitMessage")
 			commitMessageView.FgColor = textColor
 			commitMessageView.Editable = true
+			commitMessageView.Editor = gocui.EditorFunc(gui.commitMessageEditor)
 		}
 	}