Fix for #828: Embed build tags

Makefile

@@ -11,7 +11,7 @@ BINDATA := modules/{options,public,templates}/bindata.go
 STYLESHEETS := $(wildcard public/less/index.less public/less/_*.less)
 JAVASCRIPTS :=
 
-LDFLAGS := -X "main.Version=$(shell git describe --tags --always | sed 's/-/+/' | sed 's/^v//')"
+LDFLAGS := -X "main.Version=$(shell git describe --tags --always | sed 's/-/+/' | sed 's/^v//')" -X "main.Tags=$(TAGS)"
 
 TARGETS ?= linux/*,darwin/*,windows/*
 PACKAGES ?= $(shell go list ./... | grep -v /vendor/)

main.go

@@ -8,6 +8,7 @@ package main // import "code.gitea.io/gitea"
 
 import (
 	"os"
+	"strings"
 
 	"code.gitea.io/gitea/cmd"
 	"code.gitea.io/gitea/modules/log"
@@ -18,6 +19,9 @@ import (
 // Version holds the current Gitea version
 var Version = "1.1.0+dev"
 
+// Tags holds the build tags used
+var Tags = ""
+
 func init() {
 	setting.AppVer = Version
 }
@@ -26,7 +30,7 @@ func main() {
 	app := cli.NewApp()
 	app.Name = "Gitea"
 	app.Usage = "A painless self-hosted Git service"
-	app.Version = Version
+	app.Version = Version + formatBuiltWith(Tags)
 	app.Commands = []cli.Command{
 		cmd.CmdWeb,
 		cmd.CmdServ,
@@ -42,3 +46,10 @@ func main() {
 	}
 
 }
+
+func formatBuiltWith(Tags string) string {
+	if len(Tags) > 0 {
+		return " built with: " + strings.Join(strings.Split(Tags, " "), ", ")
+	}
+	return ""
+}