File 0001-build-Allow-to-define-VERSION-and-COMMIT-w... of Package multus

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File 0001-build-Allow-to-define-VERSION-and-COMMIT-without-git.patch of Package multus

From d2a7fc037cff470deac7e5622a77d0526a8dec5c Mon Sep 17 00:00:00 2001
From: Michal Rostecki <mrostecki@opensuse.org>
Date: Fri, 25 Oct 2019 09:43:31 +0200
Subject: [PATCH] build: Allow to define VERSION and COMMIT without git

Previously the build script required git to be used and installed which
did not allow to build Multus from a tarball which doesn't contain .git
directory. That made packaging of Multus hard.

Example usage after the change if you do not want to use git:

```
$ VERSION=v3.3 COMMIT=ba33df ./build
```

Signed-off-by: Michal Rostecki <mrostecki@opensuse.org>
---
 build | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/build b/build
index 7c6a1bca..16d3c8c8 100755
--- a/build
+++ b/build
@@ -9,16 +9,18 @@ fi
 
 # Add version/commit/date into binary
 # In case of TravisCI, need to check error code of 'git describe'.
-set +e
-git describe --tags --abbrev=0 > /dev/null 2>&1
-if [ "$?" != "0" ]; then
-	VERSION="master"
-else
-	VERSION=$(git describe --tags --abbrev=0)
+if [ -z "$VERSION" ]; then
+	set +e
+	git describe --tags --abbrev=0 > /dev/null 2>&1
+	if [ "$?" != "0" ]; then
+		VERSION="master"
+	else
+		VERSION=$(git describe --tags --abbrev=0)
+	fi
+	set -e
 fi
-set -e
 DATE=$(date --iso-8601=seconds)
-COMMIT=$(git rev-parse --verify HEAD)
+COMMIT=${COMMIT:-$(git rev-parse --verify HEAD)}
 LDFLAGS="-X main.version=${VERSION:-master} -X main.commit=${COMMIT} -X main.date=${DATE}"
 export CGO_ENABLED=0
 
-- 
2.16.4

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