linux/tools/perf/util/PERF-VERSION-GEN
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   1#!/bin/sh
   2
   3if [ $# -eq 1 ]  ; then
   4        OUTPUT=$1
   5fi
   6
   7GVF=${OUTPUT}PERF-VERSION-FILE
   8
   9LF='
  10'
  11
  12# First check if there is a .git to get the version from git describe
  13# otherwise try to get the version from the kernel makefile
  14if test -d ../../.git -o -f ../../.git &&
  15        VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
  16        case "$VN" in
  17        *$LF*) (exit 1) ;;
  18        v[0-9]*)
  19                git update-index -q --refresh
  20                test -z "$(git diff-index --name-only HEAD --)" ||
  21                VN="$VN-dirty" ;;
  22        esac
  23then
  24        VN=$(echo "$VN" | sed -e 's/-/./g');
  25else
  26        eval $(grep '^VERSION[[:space:]]*=' ../../Makefile|tr -d ' ')
  27        eval $(grep '^PATCHLEVEL[[:space:]]*=' ../../Makefile|tr -d ' ')
  28        eval $(grep '^SUBLEVEL[[:space:]]*=' ../../Makefile|tr -d ' ')
  29        eval $(grep '^EXTRAVERSION[[:space:]]*=' ../../Makefile|tr -d ' ')
  30
  31        VN="${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}"
  32fi
  33
  34VN=$(expr "$VN" : v*'\(.*\)')
  35
  36if test -r $GVF
  37then
  38        VC=$(sed -e 's/^PERF_VERSION = //' <$GVF)
  39else
  40        VC=unset
  41fi
  42test "$VN" = "$VC" || {
  43        echo >&2 "PERF_VERSION = $VN"
  44        echo "PERF_VERSION = $VN" >$GVF
  45}
  46
  47
  48