mc/maint/version.sh

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#!/bin/sh
if [ -z "$1" ]
then
echo "usage: $0 <toplevel-source-dir>"
exit 1
fi
src_top_dir="$1"
VERSION_FILE="${src_top_dir}/version.h"
PREV_MC_VERSION="unknown"
CURR_MC_VERSION="${PREV_MC_VERSION}"
if [ -r "${VERSION_FILE}" ]
then
PREV_MC_VERSION=`sed -n 's/^#define MC_CURRENT_VERSION "\(.*\)"$/\1/p' "${VERSION_FILE}"`
CURR_MC_VERSION="${PREV_MC_VERSION}"
fi
mc_print_version(){
if [ ! -f "${VERSION_FILE}" \
-o "${PREV_MC_VERSION}" != "${CURR_MC_VERSION}" ]
then
cat >"${VERSION_FILE}" <<EOF
#ifndef MC_CURRENT_VERSION
/* This is an autogenerated file. Don't edit! */
#define MC_CURRENT_VERSION "${CURR_MC_VERSION}"
#endif
EOF
fi
exit
}
git_head=$(git --git-dir "${src_top_dir}/.git" rev-parse --verify HEAD 2>/dev/null)
[ -z "${git_head}" ] && mc_print_version
# try to store sha1
CURR_MC_VERSION="${git_head}"
new_version="$(git --git-dir "${src_top_dir}/.git" describe 2>/dev/null)"
[ -z "${new_version}" ] && mc_print_version
# store pretty tagged version
CURR_MC_VERSION="${new_version}"
mc_print_version