tools/perf/util/PERF-VERSION-GEN

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 if [ $# -eq 1 ]  ; then
   5         OUTPUT=$1
   6 fi
   7
   8 GVF=${OUTPUT}PERF-VERSION-FILE
   9
  10 LF='
  11 '
  12
  13 #
  14 # First check if there is a .git to get the version from git describe
  15 # otherwise try to get the version from the kernel Makefile
  16 #
  17 CID=
  18 TAG=
  19 if test -d ../../.git -o -f ../../.git
  20 then
  21         TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
  22         CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
  23 elif test -f ../../PERF-VERSION-FILE
  24 then
  25         TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g')
  26 fi
  27 if test -z "$TAG"
  28 then
  29         TAG=$(MAKEFLAGS= make -sC ../.. kernelversion)
  30 fi
  31 VN="$TAG$CID"
  32 if test -n "$CID"
  33 then
  34         # format version string, strip trailing zero of sublevel:
  35         VN=$(echo "$VN" | sed -e 's/-/./g;s/\([0-9]*[.][0-9]*\)[.]0/\1/')
  36 fi
  37
  38 VN=$(expr "$VN" : v*'\(.*\)')
  39
  40 if test -r $GVF
  41 then
  42         VC=$(sed -e 's/^#define PERF_VERSION "\(.*\)"/\1/' <$GVF)
  43 else
  44         VC=unset
  45 fi
  46 test "$VN" = "$VC" || {
  47         echo >&2 "  PERF_VERSION = $VN"
  48         echo "#define PERF_VERSION \"$VN\"" >$GVF
  49 }
  50
  51