user configurable border colors

pkg/config/app_config.go

@@ -150,6 +150,11 @@ func getDefaultConfig() []byte {
   gui:
     ## stuff relating to the UI
     scrollHeight: 2
+    activeBorderColor:
+      - white
+      - bold
+    inactiveBorderColor:
+      - white
   git:
     # stuff relating to git
   os:

pkg/gui/gui.go

@@ -140,7 +140,6 @@ func max(a, b int) int {
 // layout is called for every screen re-render e.g. when the screen is resized
 func (gui *Gui) layout(g *gocui.Gui) error {
 	g.Highlight = true
-	g.SelFgColor = gocui.ColorWhite | gocui.AttrBold
 	width, height := g.Size()
 	leftSideWidth := width / 3
 	statusFilesBoundary := 2
@@ -315,7 +314,9 @@ func (gui *Gui) Run() error {
 
 	gui.g = g // TODO: always use gui.g rather than passing g around everywhere
 
-	g.FgColor = gocui.ColorDefault
+	if err := gui.SetColorScheme(); err != nil {
+		return err
+	}
 
 	gui.goEvery(g, time.Second*60, gui.fetch)
 	gui.goEvery(g, time.Second*10, gui.refreshFiles)

pkg/gui/theme.go

@@ -0,0 +1,46 @@
+package gui
+
+import (
+	"github.com/jesseduffield/gocui"
+)
+
+// GetAttribute gets the gocui color attribute from the string
+func (gui *Gui) GetAttribute(key string) gocui.Attribute {
+	colorMap := map[string]gocui.Attribute{
+		"default":   gocui.ColorDefault,
+		"black":     gocui.ColorBlack,
+		"red":       gocui.ColorRed,
+		"green":     gocui.ColorGreen,
+		"yellow":    gocui.ColorYellow,
+		"blue":      gocui.ColorBlue,
+		"magenta":   gocui.ColorMagenta,
+		"cyan":      gocui.ColorCyan,
+		"white":     gocui.ColorWhite,
+		"bold":      gocui.AttrBold,
+		"reverse":   gocui.AttrReverse,
+		"underline": gocui.AttrUnderline,
+	}
+	value, present := colorMap[key]
+	if present {
+		return value
+	}
+	return gocui.ColorWhite
+}
+
+// GetColor bitwise OR's a list of attributes obtained via the given keys
+func (gui *Gui) GetColor(keys []string) gocui.Attribute {
+	var attribute gocui.Attribute
+	for _, key := range keys {
+		attribute = attribute | gui.GetAttribute(key)
+	}
+	return attribute
+}
+
+// SetColorScheme sets the color scheme for the app based on the user config
+func (gui *Gui) SetColorScheme() error {
+	activeBorderColor := gui.Config.GetUserConfig().GetStringSlice("gui.activeBorderColor")
+	inactiveBorderColor := gui.Config.GetUserConfig().GetStringSlice("gui.inactiveBorderColor")
+	gui.g.FgColor = gui.GetColor(inactiveBorderColor)
+	gui.g.SelFgColor = gui.GetColor(activeBorderColor)
+	return nil
+}