svn merge log的測試shell script

承前篇 Arch啟用http存取svn和svn搬移log到另一個repos下
後來寫了個建構環境和merge log的script：
建立該篇文章的環境：
用法：
$ bash create_env.sh /home/svn/ #在 /home/svn/ 下建立test和test2的repos，並建立那篇文章的資料結構

#!/bin/bash
# $ bash create_env.sh 
# eg. # bash create_env.sh /home/svn/

SVN_REPOS_PATH=$1
cd ${SVN_REPOS_PATH}
svnadmin create test
svnadmin create test2

# cook test repos
svn checkout file://${SVN_REPOS_PATH}test test_checkout
cd test_checkout
mkdir trunk tags branches
touch trunk/hello.txt
svn add *
svn commit -m "hello test"
svn update
svn log
cd ..

# cook test2 repos
svn checkout file://${SVN_REPOS_PATH}test2 test2_checkout
cd test2_checkout
mkdir trunk tags branches
mkdir -p trunk/media/cloud/web/internet
svn add *
svn commit -m "hello test2"
svn update
svn log
cd ..

rm -rf test_checkout test2_checkout
ls -l

merge log：
用法：
# bash test_merge_log.sh /home/svn/test /home/svn/test2 trunk/media/cloud/web/internet # 把test的log搬到test2的 trunk/media/cloud/web/internet 資料夾下

#!/bin/bash
# merge REPOS1 log to REPOS2 folder
# run it as root
# # bash test_merge_log.sh   
# eg. # bash test_merge_log.sh /home/svn/test /home/svn/test2 trunk/media/cloud/web/internet

SVN_REPOS1_PATH=$1
SVN_REPOS2_PATH=$2
REPOS2_FOLDER=$3

svnadmin dump ${SVN_REPOS1_PATH} > test.dump
cat test.dump | svndumpfilter include "trunk" --drop-empty-revs --renumber-revs > test_trunk.dump
find . -name test_trunk.dump | xargs perl -ne 'open NEW, ">>test_trunk_new.dump"; s/trunk\///g; print NEW'
svnadmin load ${SVN_REPOS2_PATH} --parent-dir ${REPOS2_FOLDER} --ignore-uuid < test_trunk_new.dump
rm *.dump

# check
svn checkout file://${SVN_REPOS2_PATH} test2_checkout
cd test2_checkout
svn log
cd ..
rm -rf test2_checkout

原始碼：
https://github.com/kalecgos0616/tools/tree/master/svn

注意：
要在該tty 也cd到資料夾要用 . xxx.sh (要多一個點)，否則用bash xxx.sh不會換目錄，但仍然會在該目錄執行指令

The reason is that each process has its own current directory, and when you execute a program from the shell it is run in a new process. The standard "cd", "pushd" and "popd" are builtin to the shell interpreter so that they affect the shell process.
翻譯：
每個process 擁有自己的資料夾，當你執行一個shell程式時等於開了一個新的process。"cd"那些指令被內置到shell解釋器，仍影響shell進程。使用source(.) 會讓該process在現在的tty環境執行

參考資料：
http://stackoverflow.com/questions/874452/change-current-directory-from-a-script