add version number

Author: jesseduffield

gui.go

@@ -16,6 +16,9 @@ import (
 	"github.com/jesseduffield/gocui"
 )
 
+// Rev is the release version
+var Rev string
+
 // OverlappingEdges determines if panel edges overlap
 var OverlappingEdges = false
 
@@ -225,14 +228,28 @@ func layout(g *gocui.Gui) error {
 		v.FgColor = gocui.ColorWhite
 	}
 
-	if v, err := g.SetView("options", -1, optionsTop, width, optionsTop+2, 0); err != nil {
+	version := Rev
+	if version == "" {
+		version = "unversioned"
+	}
+
+	if v, err := g.SetView("options", -1, optionsTop, width-len(version)-2, optionsTop+2, 0); err != nil {
 		if err != gocui.ErrUnknownView {
 			return err
 		}
 		v.BgColor = gocui.ColorDefault
 		v.FgColor = gocui.ColorBlue
 		v.Frame = false
-		v.Title = "Options"
+	}
+
+	if v, err := g.SetView("version", width-len(version)-1, optionsTop, width, optionsTop+2, 0); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		v.BgColor = gocui.ColorDefault
+		v.FgColor = gocui.ColorGreen
+		v.Frame = false
+		renderString(g, "version", version)
 
 		// these are only called once
 		handleFileSelect(g, filesView)