tools/perf/util/PERF-VERSION-GEN

   1 #!/bin/sh
   2
   3 if [ $# -eq 1 ]  ; then
   4         OUTPUT=$1
   5 fi
   6
   7 GVF=${OUTPUT}PERF-VERSION-FILE
   8
   9 LF='
  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
  14 if 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="$VN-dirty" ;;
  22         esac
  23 then
  24         VN=$(echo "$VN" | sed -e 's/-/./g');
  25 else
  26         VN=$(MAKEFLAGS= make -sC ../.. kernelversion)
  27 fi
  28
  29 VN=$(expr "$VN" : v*'\(.*\)')
  30
  31 if test -r $GVF
  32 then
  33         VC=$(sed -e 's/^PERF_VERSION = //' <$GVF)
  34 else
  35         VC=unset
  36 fi
  37 test "$VN" = "$VC" || {
  38         echo >&2 "PERF_VERSION = $VN"
  39         echo "PERF_VERSION = $VN" >$GVF
  40 }
  41
  42