if [ ! $1 ];then
    echo '请输入版本库名称'
    exit
else
    repos_name=$1
    repos_url='svn://code.domain.com/'$repos_name
    repos_dir='/root/svn_co_code/'$repos_name
    trunk=$repos_url'/trunk'
    dev=$repos_url'/branches/dev'
    trunk_ver=$(svn info ${trunk} -rHEAD | grep "最后修改的版本:" | cut -d' ' -f2)
    if [ ! $trunk_ver ];then
        echo '版本库不存在'
        exit
    fi
    if [ ! -d $repos_dir ];then
        cd /root/svn_co_code
        svn co $repos_url
    fi
    dev_ver=$(svn info ${dev} -rHEAD | grep "最后修改的版本:" | cut -d' ' -f2)
    echo '主干分支版本号(trunk)：'$trunk_ver
    echo '开发分支版本号(branches/dev)：'$dev_ver
    if [ $trunk_ver -ge $dev_ver ];then
        echo '无需合并'
        exit
    fi
    cd $repos_dir
    pwd
    svn up
    cd $repos_dir'/trunk'
    svn merge -r $trunk_ver:$dev_ver $dev
    svn ci -m "merge br dev@${dev_ver} to trunk"
    pwd
    svn log -v -l1
fi