导出svn两个版本之间差异文件

#导出指定版本之间的差异文件 如100到200之间的差异则导出100（不包括）-200（包括）的所有修改
SVN_URL="svn://192.168.1.23/sh_p2p"
if [ $# -eq 0 ] ; then
echo "You must useage like $0 old_version1(不包括) new_version(包括)"
exit 1
fi

if [ $1 -gt $2 ] ; then
echo "You must useage like $0 old_version1(不包括) new_version(包括)"
exit 1
fi

OLD_VERSION=$1
NEW_VERSION=$2

WORK_PATH=`pwd`"/version_patch/${OLD_VERSION}_${NEW_VERSION}"
echo "开始分析版本差异..."
DIFF_URL="svn diff -r ${OLD_VERSION}:${NEW_VERSION} --summarize --username lsj --password 123456 ${SVN_URL}"
echo ${DIFF_URL}
if test ! -e "${WORK_PATH}"; then
mkdir -p ${WORK_PATH}
fi
echo ${DIFF_URL}|sh >${WORK_PATH}_diff.txt
DIFF_NUM=`${DIFF_URL} |wc -l`
if [ ${DIFF_NUM} -ne 0 ]; then
echo "差异文件共${DIFF_NUM}个,准备导出."
DIFF_LIST=`${DIFF_URL}`
#echo ${DIFF_LIST}
NUM=0
SKIP=0
for FIELD in ${DIFF_LIST} ; do
#长度小于3（A、M、D、AM即增加且修改）即是更新标识，否则为url
if [ ${#FIELD} -lt 3 ]; then
let NUM+=1
SKIP=0
if [ "${FIELD}" == "D" ]; then
#下一个应该跳过
SKIP=1
fi
continue
fi
#若为删除文件则不必导出
if [ ${SKIP} -eq 1 ]; then
echo ${NUM}.'是删除操作,跳过:'${FIELD}
continue
fi
#替换得到相对路径
DIFF_FILE=${FIELD//${SVN_URL}/}
echo ${NUM}.' '${DIFF_FILE}

FILE_NAME=`basename ${DIFF_FILE}`
FOLDER_NAME=`dirname ${DIFF_FILE}`
FOLDER_PATH="${WORK_PATH}${FOLDER_NAME}"
#echo ${FILE_NAME}' '${FOLDER_NAME}' '${FOLDER_PATH}

if test ! -e "${FOLDER_PATH}"; then
mkdir -p ${FOLDER_PATH}
fi

CMD="svn export -r ${NEW_VERSION} ${SVN_URL}${DIFF_FILE} ${FOLDER_PATH}/${FILE_NAME}"
#echo ${CMD}
#echo ${NUM}.' '
echo ${CMD}|sh
done
echo "完成"
else
echo "版本间没有差异"
fi