Add Makefile support for 'make install' and version info

Makefile

@@ -0,0 +1,2 @@
+install:
+	go install -ldflags="-X main.version=$(shell git describe --always --long --dirty)"

status/widget.go

@@ -1,7 +1,7 @@
 package status
 
 import (
-	//"fmt"
+	"fmt"
 	//"sort"
 	//"strings"
 	"time"
@@ -17,12 +17,14 @@ type Widget struct {
 	wtf.TextWidget
 
 	Current int
+	Version string
 }
 
-func NewWidget() *Widget {
+func NewWidget(version string) *Widget {
 	widget := Widget{
 		TextWidget: wtf.NewTextWidget(" 🎉 Status ", "status"),
 		Current:    0,
+		Version:    version,
 	}
 
 	return &widget
@@ -35,14 +37,14 @@ func (widget *Widget) Refresh() {
 		return
 	}
 
-	//_, _, w, _ := widget.View.GetInnerRect()
+	_, _, w, _ := widget.View.GetInnerRect()
 
-	//widget.View.Clear()
-	//fmt.Fprintf(
-	//widget.View,
-	//fmt.Sprintf("\n%%%ds", w-1),
-	//widget.timezones(),
-	//)
+	widget.View.Clear()
+	fmt.Fprintf(
+		widget.View,
+		fmt.Sprintf("\n%%%ds", w-1),
+		widget.Version,
+	)
 
 	widget.RefreshedAt = time.Now()
 }

todo/list.go

@@ -1,8 +1,6 @@
 package todo
 
-import (
-	"fmt"
-)
+import ()
 
 type List struct {
 	Items []*Item

wtf.go

@@ -2,9 +2,9 @@ package main
 
 import (
 	"flag"
+	"fmt"
 	"os"
 	"time"
-	//"math/rand"
 
 	"github.com/gdamore/tcell"
 	"github.com/olebedev/config"
@@ -99,19 +99,42 @@ func refreshAllModules() {
 	}
 }
 
+func versionInfo() {
+fmt.Printf("Version: %s\n", version)
+		os.Exit(0)
+}
+
 var result = wtf.CreateConfigDir()
 
 var Config *config.Config
 var FocusTracker wtf.FocusTracker
 var Widgets []wtf.TextViewer
 
+var version = "dev"
+
 /* -------------------- Main -------------------- */
 
 func main() {
 	// Optional argument to accept path to a config file
 	configFile := flag.String("config", "~/.wtf/config.yml", "Path to config file")
+	flagVersion := flag.Bool("version", false, "Show version info")
 	flag.Parse()
 
+	if *flagVersion {
+		versionInfo()
+	}
+
+	// If we're just displaying the version, exit early
+	args := flag.Args()
+	cmd := args[0]
+
+	switch cmd {
+	case "help", "--help", "-h":
+		os.Exit(0)
+	case "version", "--version":
+		versionInfo()
+	}
+
 	Config = wtf.LoadConfigFile(*configFile)
 
 	wtf.Config = Config
@@ -140,7 +163,7 @@ func main() {
 		newrelic.NewWidget(),
 		opsgenie.NewWidget(),
 		security.NewWidget(),
-		status.NewWidget(),
+		status.NewWidget(version),
 		textfile.NewWidget(),
 		todo.NewWidget(),
 		weather.NewWidget(),