更换版本控制工具一定是万不得已而为之。处理不当，将会丢失文件的版本历史记录，这无异于一场灾难。下面仅仅讨论了从 Starteam 移植到 CVS 的过程，其它类型的迁移可以举一反三。
导出工程在 Starteam 中的文件和目录结构，并在 CVS 中创建新的工程“project”，并导入目录结构。
# cd ~jiangxin/work/ # mkdir project # cd project # st config 配置为 Starteam 的 project 工程视图 # st cd # cvs import -m "create directory" project Johnson init ##该命令等效于： # for i in `find . -type d -exclude "CVS"`; do cvs add $i; done |
从 Starteam 中 Checkout 出每个文件，在将每个文件的Commit Log 导出为扩展名为 .jxlog 的文件。 导出的 log 被应用程序 steam2cvs 分析并生成脚本，用于完成文件从 starteam 向 cvs 迁移。
# cd ~jiangxin/work/project
# st -qq co
# for i in `find . -type f -exclude "CVS"`; do i=${i#./}; st log $i >$i.jxlog; done |
复杂一些的脚本：
#!/bin/sh
cd <PATH>
xxx=0
for i in `find . -type f`; do
if echo $i | grep -w -e "CVS" -e ".jxlog" -e ".jxsh"; then
continue
fi
j=${i}.jxlog
if [ -f $j ]; then
continue
fi
i=${i#./}
st log $i >$i.jxlog.tmp
mv -f $i.jxlog.tmp $i.jxlog
xxx=`eval "expr $xxx + 1"`
echo "$xxx : $i"
done |
根据每个文件的Commit Log 文件（*.jxlog），生成相应的脚本文件。
STARTEAM 日志格式如下：
Folder: starteam (working dir: /home/jiangxin/src/starteam) History for: st Description: Locked by: Status: Current ---------------------------- Revision: 58 View: compiler Branch Revision: 1.57 Author: nobody_used_for_utility_coci Date: 3/7/03 11:15:03 AM CST use trap 'rm -f xxxx' EXIT to remove temporary passwd file ---------------------------- Revision: 57 View: compiler Branch Revision: 1.56 Author: nobody_used_for_utility_coci Date: 10/23/02 7:24:38 PM CST change server ip from 60 to 6 ---------------------------- ... ... ... ---------------------------- Revision: 2 View: compiler Branch Revision: 1.1 Author: jiangxin(root) Date: 3/10/02 2:12:24 AM CST jiangxin edition ---------------------------- Revision: 1 View: compiler Branch Revision: 1.0 Author: jiangxin(root) Date: 3/10/02 2:10:17 AM CST starteam wrapper. by yangzw ============================================================================= |
通过程序 steam2cvs 转换之后的脚本示例如下：
st -qq co -lf -r 1 st cvs add st cvs ci -m "starteam wrapper. by yangzw (Author:jiangxin(root), Date:3/10/02 2:10:17 AM CST)" st st -qq co -lf -r 2 st cvs ci -m "jiangxin edition (Author:jiangxin(root), Date:3/10/02 2:12:24 AM CST)" st st -qq co -lf -r 3 st cvs ci -m "ci failed (Author:jiangxin, Date:3/10/02 2:16:25 AM CST)" st st -qq co -lf -r 4 st cvs ci -m "cvs style wrapper (Author:jiangxin, Date:3/10/02 2:23:10 AM CST)" st ... ... ... st -qq co -lf -r 57 st cvs ci -m "change server ip from 60 to 6 (Author:nobody_used_for_utility_coci, Date:10/23/02 7:24:38 PM CST)" st st -qq co -lf -r 58 st cvs ci -m "use trap 'rm -f xxxx' EXIT to remove temporary passwd file (Author:nobody_used_for_utility_coci, Date:3/7/03 11:15:03 AM CST)" st |
转换程序 steam2cvs 即完成了上述日志到脚本的转换。源程序参见：
/src/starteam2cvs/steam2cvs.c,/src/starteam2cvs/mystring.c, ...
对整个工程的文件执行此操作：
# cd ~jiangxin/work/project
# find . -name "*.jxlog" -o -name ".*.jxlog" -type f -exclude "CVS" -exec steam2cvs {} \; |
复杂一些的脚本：
#!/bin/sh
cd <PATH>
xxx=0
while : ; do
for i in `find . -name "*.jxlog" -o -name ".*.jxlog" -type f`; do
xxx=`eval "expr $xxx + 1"`
echo -e "$xxx : proc $i ... \c"
steam2cvs $i
j=${i}.jxsh
# 运行脚本
sh $j
rm -f $i
echo "done"
done
sleep 60
done
|