CS4.1 RPM打包函数分析

shell举例说明：
脚本名称叫test.sh 入参三个: 1 2 3
运行test.sh 1 2 3后
$*为"1 2 3"（一起被引号包住）
$@为"1" "2" "3"（分别被包住）
$#为3（参数数量）

rpm包编译的脚本的所在目录/root/cs4.1/packaging/centos63，文件名称是package.sh

#!/bin/bash
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
# 该脚本文件用于编译CloudStack 的rpm 包

#usage函数用于提供控制台输出帮助
function usage() {
echo ""
echo "usage: ./package.sh [-p|--pack] [-h|--help] [ARGS]"
echo ""
echo "The commonly used Arguments are:"
echo "oss|OSS             To package with only redistributable libraries (default)"
echo "noredist|NOREDIST   To package with non-redistributable libraries"
echo ""
echo "Examples: ./package.sh -p|--pack oss|OSS"
echo "          ./package.sh -p|--pack noredist|NOREDIST"
echo "          ./package.sh (Default OSS)"
exit 1
}

#rpm打包函数
function packaging() {

CWD=`pwd`
RPMDIR=$CWD/../../dist/rpmbuild
PACK_PROJECT=cloudstack
if [ -n "$1" ] ; then
DEFOSSNOSS="-D_ossnoss $packageval"
fi

VERSION=`(cd ../../; mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate -Dexpression=project.version) | grep '^[0-9].'`
if echo $VERSION | grep SNAPSHOT ; then
REALVER=`echo $VERSION | cut -d '-' -f 1`
DEFVER="-D_ver $REALVER"
DEFPRE="-D_prerelease 1"
DEFREL="-D_rel SNAPSHOT"
else
REALVER=`echo $VERSION`
DEFVER="-D_ver $REALVER"
DEFREL="-D_rel 1"
fi

mkdir -p $RPMDIR/SPECS
mkdir -p $RPMDIR/BUILD
mkdir -p $RPMDIR/RPMS
mkdir -p $RPMDIR/SRPMS
mkdir -p $RPMDIR/SOURCES/$PACK_PROJECT-$VERSION

(cd ../../; tar -c --exclude .git --exclude dist . | tar -C $RPMDIR/SOURCES/$PACK_PROJECT-$VERSION -x )
(cd $RPMDIR/SOURCES/; tar -czf $PACK_PROJECT-$VERSION.tgz $PACK_PROJECT-$VERSION)

cp cloud.spec $RPMDIR/SPECS

(cd $RPMDIR; rpmbuild --define "_topdir $RPMDIR" "${DEFVER}" "${DEFREL}" ${DEFPRE+"${DEFPRE}"} ${DEFOSSNOSS+"$DEFOSSNOSS"} -bb SPECS/cloud.spec)

exit
}

#如果前一个表达式小于后一个表达式，则结果为真
if [ $# -lt 1 ] ; then

packaging

elif [ $# -gt 0 ] ; then

SHORTOPTS="hp:"
LONGOPTS="help,pack:"

ARGS=$(getopt -s bash -u -a --options $SHORTOPTS --longoptions $LONGOPTS --name $0 -- "$@" )
eval set -- "$ARGS"

    while [ $# -gt 0 ] ; do
    case "$1" in
    -h | --help)
        usage
        exit 0
        ;;
    -p | --pack)
        echo "Doing CloudStack Packaging ....."
        packageval=$2
        if [ "$packageval" == "oss" -o "$packageval" == "OSS" ] ; then
            packaging
        elif [ "$packageval" == "noredist" -o "$packageval" == "NOREDIST" ] ; then
            packaging noredist
        else
            echo "Error: Incorrect value provided in package.sh script, Please see help ./package.sh --help|-h for more details."
            exit 1
        fi
        ;;
    -)
        echo "Unrecognized option..."
        usage
        exit 1
        ;;
    *)
        shift
        ;;
    esac
    done

else
echo "Incorrect choice. Nothing to do." >&2
echo "Please, execute ./package.sh --help for more help"
fi