From 2a84435974d6cc604fe2b2fd5cb881ff7afa065c Mon Sep 17 00:00:00 2001
From: Marius <maerious@gmail.com>
Date: Sat, 23 Jan 2016 12:43:50 +0100
Subject: [PATCH] Add version information for tusd builds

---
 .travis.yml      |  2 +-
 cmd/tusd/main.go | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index f9d7e5a..044cdc7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -28,7 +28,7 @@ before_deploy:
 - export GOROOT_BOOTSTRAP=$GOROOT
 - go get github.com/laher/goxc
 - goxc -t -bc="linux darwin windows"
-- goxc -d=./ -wd=./cmd/tusd -bc="linux darwin windows"
+- goxc -d=./ -wd=./cmd/tusd -bc="linux darwin windows" -ldflags="-X main.VersionName=$TRAVIS_TAG -X main.GitCommit=$TRAVIS_COMMIT -X 'main.BuildDate=$(date --utc)'"
 
 deploy:
   provider: releases
diff --git a/cmd/tusd/main.go b/cmd/tusd/main.go
index cb3019a..b8f72e4 100644
--- a/cmd/tusd/main.go
+++ b/cmd/tusd/main.go
@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"os"
 	"time"
+	"fmt"
 
 	"github.com/tus/tusd"
 	"github.com/tus/tusd/filestore"
@@ -19,6 +20,10 @@ import (
   "github.com/aws/aws-sdk-go/aws"
 )
 
+var VersionName = "n/a"
+var GitCommit = "n/a"
+var BuildDate = "n/a"
+
 var httpHost string
 var httpPort string
 var maxSize int64
@@ -27,6 +32,7 @@ var storeSize int64
 var basepath string
 var timeout int64
 var s3Bucket string
+var version bool
 
 var stdout = log.New(os.Stdout, "[tusd] ", 0)
 var stderr = log.New(os.Stderr, "[tusd] ", 0)
@@ -40,11 +46,18 @@ func init() {
 	flag.StringVar(&basepath, "base-path", "/files/", "Basepath of the HTTP server")
 	flag.Int64Var(&timeout, "timeout", 30*1000, "Read timeout for connections in milliseconds")
 	flag.StringVar(&s3Bucket, "s3-bucket", "", "Use AWS S3 with this bucket as storage backend (requires the AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY and AWS_REGION environment variables to be set)")
+	flag.BoolVar(&version, "version", false, "Print tusd version information")
 
 	flag.Parse()
 }
 
 func main() {
+	if version {
+		fmt.Printf("Version: %s\nCommit: %s\nDate: %s\n", VersionName, GitCommit, BuildDate)
+
+		return
+	}
+
 	var store tusd.TerminaterDataStore
 	if s3Bucket == "" {
 		stdout.Printf("Using '%s' as directory storage.\n", dir)