#!/bin/sh####  Copyright (c) 2010 The WebM project authors. All Rights Reserved.####  Use of this source code is governed by a BSD-style license##  that can be found in the LICENSE file in the root of the source##  tree. An additional intellectual property rights grant can be found##  in the file PATENTS.  All contributing project authors may##  be found in the AUTHORS file in the root of the source tree.##   for opt in "$@"; do    optval="${opt#*=}"    case "$opt" in    --bare) bare=true ;;    *) break ;;    esac    shiftdonesource_path=${1:-.}out_file=${2}id=${3:-VERSION_STRING} git_version_id=""if [ -e "${source_path}/.git" ]; then    # Source Path is a git working copy. Check for local modifications.    # Note that git submodules may have a file as .git, not a directory.    export GIT_DIR="${source_path}/.git"    git_version_id=`git describe --match=v[0-9]* 2>/dev/null`fi changelog_version=""for p in "${source_path}" "${source_path}/.."; do    if [ -z "$git_version_id" -a -f "${p}/CHANGELOG" ]; then        changelog_version=`head -n1 "${p}/CHANGELOG" | awk '{print $2}'`        changelog_version="${changelog_version}"        break    fidoneversion_str="${changelog_version}${git_version_id}"bare_version=${version_str#v}major_version=${bare_version%%.*}bare_version=${bare_version#*.}minor_version=${bare_version%%.*}bare_version=${bare_version#*.}patch_version=${bare_version%%-*}bare_version=${bare_version#${patch_version}}extra_version=${bare_version##-} #since they'll be used as integers below make sure they are or force to 0for v in major_version minor_version patch_version; do    if eval echo \$$v |grep -E -q '[^[:digit:]]'; then        eval $v=0    fidone if [ ${bare} ]; then    echo "${changelog_version}${git_version_id}" > $$.tmpelse    cat<<EOF>$$.tmp// This file is generated. Do not edit.#define VERSION_MAJOR  $major_version#define VERSION_MINOR  $minor_version#define VERSION_PATCH  $patch_version#define VERSION_EXTRA  "$extra_version"#define VERSION_PACKED ((VERSION_MAJOR<<16)|(VERSION_MINOR<<8)|(VERSION_PATCH))#define ${id}_NOSP "${version_str}"#define ${id}      " ${version_str}"EOFfiif [ -n "$out_file" ]; thendiff $$.tmp ${out_file} >/dev/null 2>&1 || cat $$.tmp > ${out_file}elsecat $$.tmpfirm $$.tmp