Fix for #828: Embed build tags (#1051)

* Fix for #828
Add build tags to ldflags and print in version output

Signed-off-by: Jonas Östanbäck <jonas.ostanback@gmail.com>

* Reworked formatBuiltWith function

Signed-off-by: Jonas Östanbäck <jonas.ostanback@gmail.com>

* Add tags to version information in admin panel

Signed-off-by: Jonas Östanbäck <jonas.ostanback@gmail.com>

* Added new variable for use on admin page.

Signed-off-by: Jonas Östanbäck <jonas.ostanback@gmail.com>

* Fixed incorrect indentation

5 files changed, 21 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 212aa4fdc1..9dad28910a 100644
--- a/Makefile
+++ b/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/)
diff --git a/main.go b/main.go
index 6576bf3e89..383dbc2093 100644
--- a/main.go
+++ b/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"
@@ -18,15 +19,19 @@ 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
+	setting.AppBuiltWith = formatBuiltWith(Tags)
 }
 
 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,
@@ -41,3 +46,11 @@ func main() {
 		log.Fatal(4, "Failed to run app with %s: %v", os.Args, err)
 	}
 }
+
+func formatBuiltWith(Tags string) string {
+	if len(Tags) == 0 {
+		return ""
+	}
+
+	return " built with: " + strings.Replace(Tags, " ", ", ", -1)
+}
diff --git a/modules/setting/setting.go b/modules/setting/setting.go
index dd06691dc3..bdece17ad4 100644
--- a/modules/setting/setting.go
+++ b/modules/setting/setting.go
@@ -59,6 +59,7 @@ const (
 var (
 	// AppVer settings
 	AppVer         string
+	AppBuiltWith   string
 	AppName        string
 	AppURL         string
 	AppSubURL      string
@@ -939,7 +940,7 @@ var logLevels = map[string]string{
 }
 
 func newLogService() {
-	log.Info("Gitea v%s", AppVer)
+	log.Info("Gitea v%s%s", AppVer, AppBuiltWith)
 
 	LogModes = strings.Split(Cfg.Section("log").Key("MODE").MustString("console"), ",")
 	LogConfigs = make([]string, len(LogModes))
diff --git a/modules/templates/helper.go b/modules/templates/helper.go
index b03128a0b1..1f510bda6a 100644
--- a/modules/templates/helper.go
+++ b/modules/templates/helper.go
@@ -48,6 +48,9 @@ func NewFuncMap() []template.FuncMap {
 		"AppVer": func() string {
 			return setting.AppVer
 		},
+		"AppBuiltWith": func() string {
+				return setting.AppBuiltWith
+		},
 		"AppDomain": func() string {
 			return setting.Domain
 		},
diff --git a/templates/admin/config.tmpl b/templates/admin/config.tmpl
index 12a25e8e5d..ca12bbe057 100644
--- a/templates/admin/config.tmpl
+++ b/templates/admin/config.tmpl
@@ -13,7 +13,7 @@
 						<dt>{{.i18n.Tr "admin.config.app_name"}}</dt>
 						<dd>{{AppName}}</dd>
 						<dt>{{.i18n.Tr "admin.config.app_ver"}}</dt>
-						<dd>{{AppVer}}</dd>
+						<dd>{{AppVer}}{{AppBuiltWith}}</dd>
 						<dt>{{.i18n.Tr "admin.config.app_url"}}</dt>
 						<dd>{{.AppUrl}}</dd>
 						<dt>{{.i18n.Tr "admin.config.domain"}}</dt>