svn 有效代码统计

alex@localhost:~$ cat shell/source-counter.sh 
#! /bin/bash
# 计算有效变更代码量的脚本
# 包括注释，但不包括新增的空行
version() {
        OS=`uname -o`
        echo "Source_counter ($OS) 0.0.1"
        echo "  tony bai (http://tonybai.com)"
}

usage() {
        echo "usage: source-counter [-t SVN_REPOSITORY_URL] [-s START_REVISION]"
        echo "                      [-e END_REVISION] [-u USER_NAME]"
        echo "                      [-p PASSWD]"
        echo "       source-counter [-v|-h]"
        echo 
        echo "        -t,                 目标SVN库地址"
        echo "        -s,                 起始修订号"
        echo "        -e,                 结束修订号"
        echo "        -u,                 svn帐号"
        echo "        -p,                 svn密码"
        echo "        -h,                 帮助"
        echo "        -v,                 版本信息"
}

if [ $# -lt 2 ]; then
        usage
        exit 1 
fi

while getopts "t:s:e:u:p:vh" opt; do
        case $opt in
                t) target=$OPTARG;;
                s) start_revision=$OPTARG;;
                e) end_revision=$OPTARG;;
                u) user=$OPTARG;;
                p) passwd=$OPTARG;;
                v) version; exit 1;;
                h) usage; exit 1;;
        esac
done

if [ -z $target ]; then
        echo "请输入目标SVN库地址!"
        exit 1
fi

if [ -z $start_revision ]; then
        echo "请输入起始修订号!"
        exit 1
fi

if [ -z $end_revision ]; then
        echo "请输入终止修订号!"
        exit 1
fi

TEMPFILE=temp.log
USERNAME=${user:-}
PASSWD=${passwd:-}

svn diff -r$start_revision:$end_revision $target $USERNAME $PASSWD > $TEMPFILE
#去掉含空格的空行
add_lines_count=`grep "^+" temp | grep -v "^+++" | sed 's/^.//'| sed s/[[:space:]]//g |sed '/^$/d'|wc -l`
#没有去掉有的空行
#add_lines_count=`grep "^+" $TEMPFILE|grep -v "^+++"|sed 's/^.//'|sed '/^$/d'|wc -l`
rm -fr $TEMPFILE
echo "the actually incremental source code lines = $add_lines_count"