gen_scm_version.sh

#!/bin/sh
# Create or modify the scm header file. The define in the header file
# identifies the git commit that corresponds to the source code.
#
# Based on patch from Peter Hutterer sent to X.Org
#    http://lists.x.org/archives/xorg-devel/2010-April/007415.html




scm_header=$1
dist_scm_header=$2
def_name=$3

echo "#define BMX_SCM_VERSION \"snap1701\"" > $scm_header

#
#
## for the case of out of tree builds
#abs_top_srcdir="$(cd "$(dirname "$0")" && pwd)"
#export GIT_DIR=${abs_top_srcdir}/.git
#export GIT_WORK_TREE=${abs_top_srcdir}/
#
#git_ver=""
#if command -v git >/dev/null 2>&1; then
#  git update-index --refresh --unmerged -q >/dev/null 2>&1
#  git_ver=`git describe 2>/dev/null`
#  if test -n "$git_ver" && ! git diff-index --quiet HEAD --; then
#    git_ver="$git_ver"-dirty
#  fi
#fi
#
#define_str="#define $def_name \"$git_ver\""
#
#
## if $scm_header does not exist then default to the header provided by the
## distribution package, $dist_scm_header
#if ! test -e $scm_header && test -e $dist_scm_header; then
#  cp $dist_scm_header $scm_header
#fi
#
#
#if test -e "$scm_header"; then
#  if test -z "$git_ver"; then
#    # keep existing scm version file
#    exit 0
#  fi
#  existing_define_str=`cat $scm_header`
#  if test "$existing_define_str" = "$define_str"; then
#    # no change and therefore don't modify scm version file
#    exit 0
#  fi
#fi
#
#
#echo "$define_str" > $scm_header
#