From cb5c0bea2d79b472b9f46a7c60fdd91757775433 Mon Sep 17 00:00:00 2001
From: Dalton Hubble <dghubble@gmail.com>
Date: Fri, 8 Jan 2016 14:34:01 -0800
Subject: [PATCH] git-version: Add git-version commit/tag detection script

---
 docker-build |  2 +-
 docker-push  |  2 +-
 git-version  | 21 +++++++++++++++++++++
 3 files changed, 23 insertions(+), 2 deletions(-)
 create mode 100755 git-version

diff --git a/docker-build b/docker-build
index 54db028b..402f0ada 100755
--- a/docker-build
+++ b/docker-build
@@ -1,7 +1,7 @@
 #!/bin/bash -e
 
 REPO=coreos/bootcfg
-GIT_SHA=$(git rev-parse HEAD)
+GIT_SHA=$(./git-version)
 
 docker build -q --rm=true -t $REPO:$GIT_SHA .
 docker tag -f $REPO:$GIT_SHA $REPO:latest
\ No newline at end of file
diff --git a/docker-push b/docker-push
index 6bc6b689..b37e0046 100755
--- a/docker-push
+++ b/docker-push
@@ -2,7 +2,7 @@
 
 REPO=coreos/bootcfg
 QUAY_REPO=quay.io/coreos/bootcfg
-GIT_SHA=$(git rev-parse HEAD)
+GIT_SHA=$(./git-version)
 
 # quay.io
 docker tag -f $REPO:$GIT_SHA $QUAY_REPO:latest
diff --git a/git-version b/git-version
new file mode 100755
index 00000000..36dd38db
--- /dev/null
+++ b/git-version
@@ -0,0 +1,21 @@
+#!/bin/bash -e
+
+# parse the current git commit hash
+COMMIT=`git rev-parse HEAD`
+
+# check if the current commit has a matching tag
+TAG=$(git describe --exact-match --abbrev=0 --tags ${COMMIT} 2> /dev/null || true)
+
+# use the matching tag as the version, if available
+if [ -z "$TAG" ]; then
+    VERSION=$COMMIT
+else
+    VERSION=$TAG
+fi
+
+# check for changed files (not untracked files)
+if [ -n "$(git diff --shortstat 2> /dev/null | tail -n1)" ]; then
+    VERSION="${VERSION}+dirty"
+fi
+
+echo $VERSION
\ No newline at end of file