bootstrap/generate_gitrev.sh

   1 #!/bin/sh
   2
   3 # Freeciv - Copyright (C) 2007 - The Freeciv Project
   4
   5 # This script generates fc_gitrev_gen.h from fc_gitrev_gen.h.tmpl.
   6 # See fc_gitrev_gen.h.tmpl for details.
   7
   8 # Parameters - $1 - top srcdir
   9 #              $2 - top builddir
  10 #
  11
  12 # Absolete paths
  13 SRCROOT="$(cd "$1" ; pwd)"
  14 INPUTDIR="$(cd "$1/bootstrap" ; pwd)"
  15 OUTPUTDIR="$(cd "$2/common" ; pwd)"
  16
  17 REVSTATE="OFF"
  18 REV1=""
  19 REV2="dist"
  20
  21 (cd "$INPUTDIR"
  22  # Check that all commands required by this script are available
  23  # If not, we will not claim to know which git revision this is
  24  # (REVSTATE will be OFF)
  25  if which git && which tail && which wc ; then
  26    REVTMP="$(git rev-parse HEAD 2>/dev/null)"
  27    if test "x$REVTMP" != "x" ; then
  28      # This is git repository. Check for local modifications
  29      if test $(cd "$SRCROOT" ; git diff | wc -l) -eq 0 ; then
  30        REVSTATE=ON
  31        REV2="$REVTMP"
  32      else
  33        REVSTATE=MOD
  34        REV1="modified "
  35        REV2="$REVTMP"
  36      fi
  37    fi
  38  fi
  39
  40  sed -e "s,<GITREV1>,$REV1," -e "s,<GITREV2>,$REV2," -e "s,<GITREVSTATE>,$REVSTATE," fc_gitrev_gen.h.tmpl > "$OUTPUTDIR/fc_gitrev_gen.h.tmp"
  41  if ! test -f "$OUTPUTDIR/fc_gitrev_gen.h" ||
  42     ! cmp "$OUTPUTDIR/fc_gitrev_gen.h" "$OUTPUTDIR/fc_gitrev_gen.h.tmp"
  43  then
  44    mv "$OUTPUTDIR/fc_gitrev_gen.h.tmp" "$OUTPUTDIR/fc_gitrev_gen.h"
  45  fi
  46  rm -f "$OUTPUTDIR/fc_gitrev_gen.h.tmp"
  47 ) > /dev/null