From febace363393aba466429489e2419fb1560935d3 Mon Sep 17 00:00:00 2001
From: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
Date: Fri, 18 Mar 2016 15:29:22 -0700
Subject: [PATCH] Add the git commit to the output version

Signed-off-by: Kenfe-Mickael Laventure <mickael.laventure@gmail.com>
---
 Makefile           | 8 ++++++--
 containerd/main.go | 7 ++++++-
 ctr/main.go        | 6 +++++-
 version.go         | 2 ++
 4 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/Makefile b/Makefile
index a3adac9..234b235 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,9 @@
 BUILDTAGS=
 
+GIT_COMMIT := $(shell git rev-parse HEAD 2> /dev/null || true)
+
+LDFLAGS := "-X github.com/docker/containerd.GitCommit=${GIT_COMMIT} ${LDFLAGS}"
+
 # if this session isn't interactive, then we don't want to allocate a
 # TTY, which would fail, but if it is interactive, we do want to attach
 # so that the user can send e.g. ^C through.
@@ -22,10 +26,10 @@ clean:
 	rm -rf bin
 
 client: bin
-	cd ctr && go build -o ../bin/ctr
+	cd ctr && go build -ldflags ${LDFLAGS} -o ../bin/ctr
 
 daemon: bin
-	cd containerd && go build -tags "$(BUILDTAGS)" -o ../bin/containerd
+	cd containerd && go build -ldflags ${LDFLAGS}  -tags "$(BUILDTAGS)" -o ../bin/containerd
 
 shim: bin
 	cd containerd-shim && go build -tags "$(BUILDTAGS)" -o ../bin/containerd-shim
diff --git a/containerd/main.go b/containerd/main.go
index e7ddcfb..d8d54e8 100644
--- a/containerd/main.go
+++ b/containerd/main.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"fmt"
 	"net"
 	"os"
 	"sync"
@@ -52,7 +53,11 @@ func main() {
 	appendPlatformFlags()
 	app := cli.NewApp()
 	app.Name = "containerd"
-	app.Version = containerd.Version
+	if containerd.GitCommit != "" {
+		app.Version = fmt.Sprintf("%s commit: %s", containerd.Version, containerd.GitCommit)
+	} else {
+		app.Version = containerd.Version
+	}
 	app.Usage = usage
 	app.Flags = daemonFlags
 	setAppBefore(app)
diff --git a/ctr/main.go b/ctr/main.go
index d81960b..2837e39 100644
--- a/ctr/main.go
+++ b/ctr/main.go
@@ -14,7 +14,11 @@ const usage = `High performance container daemon cli`
 func main() {
 	app := cli.NewApp()
 	app.Name = "ctr"
-	app.Version = containerd.Version
+	if containerd.GitCommit != "" {
+		app.Version = fmt.Sprintf("%s commit: %s", containerd.Version, containerd.GitCommit)
+	} else {
+		app.Version = containerd.Version
+	}
 	app.Usage = usage
 	app.Flags = []cli.Flag{
 		cli.BoolFlag{
diff --git a/version.go b/version.go
index f0eda81..0976245 100644
--- a/version.go
+++ b/version.go
@@ -1,3 +1,5 @@
 package containerd
 
 const Version = "0.0.5"
+
+var GitCommit = ""