xref: /linux/tools/perf/util/PERF-VERSION-GEN (revision befddb21c845f8fb49e637997891ef97c6a869dc)
1#!/bin/sh
2
3if [ $# -eq 1 ]  ; then
4	OUTPUT=$1
5fi
6
7GVF=${OUTPUT}PERF-VERSION-FILE
8
9LF='
10'
11
12#
13# First check if there is a .git to get the version from git describe
14# otherwise try to get the version from the kernel Makefile
15#
16if test -d ../../.git -o -f ../../.git &&
17	VN=$(git tag 2>/dev/null | tail -1 | grep -E "v[0-9].[0-9]*")
18then
19	VN=$(echo $VN"-g"$(git log -1 --abbrev=4 --pretty=format:"%h" HEAD))
20	VN=$(echo "$VN" | sed -e 's/-/./g');
21else
22	VN=$(MAKEFLAGS= make -sC ../.. kernelversion)
23fi
24
25VN=$(expr "$VN" : v*'\(.*\)')
26
27if test -r $GVF
28then
29	VC=$(sed -e 's/^PERF_VERSION = //' <$GVF)
30else
31	VC=unset
32fi
33test "$VN" = "$VC" || {
34	echo >&2 "PERF_VERSION = $VN"
35	echo "PERF_VERSION = $VN" >$GVF
36}
37
38
39