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 #
  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 #
  16 if test -d ../../.git -o -f ../../.git &&
  17         VN=$(git tag 2>/dev/null | tail -1 | grep -E "v[0-9].[0-9]*")
  18 then
  19         VN=$(echo $VN"-g"$(git log -1 --abbrev=4 --pretty=format:"%h" HEAD))
  20         VN=$(echo "$VN" | sed -e 's/-/./g');
  21 else
  22         VN=$(MAKEFLAGS= make -sC ../.. kernelversion)
  23 fi
  24
  25 VN=$(expr "$VN" : v*'\(.*\)')
  26
  27 if test -r $GVF
  28 then
  29         VC=$(sed -e 's/^PERF_VERSION = //' <$GVF)
  30 else
  31         VC=unset
  32 fi
  33 test "$VN" = "$VC" || {
  34         echo >&2 "PERF_VERSION = $VN"
  35         echo "PERF_VERSION = $VN" >$GVF
  36 }
  37
  38