summary refs log tree commit diff
path: root/tools
diff options
context:
space:
mode:
authorRobert Richter <robert.richter@calxeda.com>2013-05-08 11:43:34 +0200
committerArnaldo Carvalho de Melo <acme@redhat.com>2013-07-08 18:09:52 -0300
commita4147f0f91386540316e468f3a3674a498dada5f (patch)
treeba9ee1366e013a0589c58c275e0fe54d3b19c8df /tools
parent582ec0829b3dd74d8c0f58403a3f9df8cbaa9c7d (diff)
downloadlinux-a4147f0f91386540316e468f3a3674a498dada5f.tar.gz
perf tools: Fix perf version generation
The tag of the perf version is wrongly determined, always the latest tag
is taken regardless of the HEAD commit:

 $ perf --version
 perf version 3.9.rc8.gd7f5d3
 $ git describe d7f5d3
 v3.9-rc7-154-gd7f5d33
 $ head -n 4 Makefile
 VERSION = 3
 PATCHLEVEL = 9
 SUBLEVEL = 0
 EXTRAVERSION = -rc7

In other cases no tag might be found.

This patch fixes this.

This new implementation handles also the case if there are no tags at
all found in the git repo but there is a commit id.

Signed-off-by: Robert Richter <robert.richter@calxeda.com>
Link: http://lkml.kernel.org/r/1368006214-12912-1-git-send-email-rric@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rwxr-xr-xtools/perf/util/PERF-VERSION-GEN21
1 files changed, 15 insertions, 6 deletions
diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 055fef34b6f6..15a77b7c0e36 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -13,13 +13,22 @@ LF='
 # First check if there is a .git to get the version from git describe
 # otherwise try to get the version from the kernel Makefile
 #
-if test -d ../../.git -o -f ../../.git &&
-	VN=$(git tag 2>/dev/null | tail -1 | grep -E "v[0-9].[0-9]*")
+CID=
+TAG=
+if test -d ../../.git -o -f ../../.git
 then
-	VN=$(echo $VN"-g"$(git log -1 --abbrev=4 --pretty=format:"%h" HEAD))
-	VN=$(echo "$VN" | sed -e 's/-/./g');
-else
-	VN=$(MAKEFLAGS= make -sC ../.. kernelversion)
+	TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
+	CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
+fi
+if test -z "$TAG"
+then
+	TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
+fi
+VN="$TAG$CID"
+if test -n "$CID"
+then
+	# format version string, strip trailing zero of sublevel:
+	VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
 fi
 
 VN=$(expr "$VN" : v*'\(.*\)')