Added build script written in go that adds build symbols for version, commit and build date

pkg/api/frontendsettings.go

@@ -63,6 +63,11 @@ func getFrontendSettings(c *middleware.Context) (map[string]interface{}, error)
 	jsonObj := map[string]interface{}{
 		"datasources": datasources,
 		"appSubUrl":   setting.AppSubUrl,
+		"buildInfo": map[string]interface{}{
+			"version":    setting.BuildVersion,
+			"commit":     setting.BuildCommit,
+			"buildstamp": setting.BuildStamp,
+		},
 	}
 
 	return jsonObj, nil

pkg/cmd/web.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"net/http"
 	"path"
+	"time"
 
 	"github.com/Unknwon/macaron"
 	"github.com/codegangsta/cli"
@@ -68,7 +69,8 @@ func mapStatic(m *macaron.Macaron, dir string, prefix string) {
 }
 
 func runWeb(c *cli.Context) {
-	log.Info("Starting Grafana 2.0-alpha")
+	log.Info("Starting Grafana")
+	log.Info("Version: %v, Commit: %v, Build date: %v", setting.BuildVersion, setting.BuildCommit, time.Unix(setting.BuildStamp, 0))
 
 	setting.NewConfigContext()
 	setting.InitServices()

pkg/setting/setting.go

@@ -34,11 +34,15 @@ const (
 var (
 	// App settings.
 	Env       string = DEV
-	AppVer    string
 	AppName   string
 	AppUrl    string
 	AppSubUrl string
 
+	// build
+	BuildVersion string
+	BuildCommit  string
+	BuildStamp   int64
+
 	// Log settings.
 	LogRootPath string
 	LogModes    []string