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svn 的hook机制方便了用户根据svn动作自定义一些操作，post-commithook是当用户执行commit后执行的用户自定义操作。如用户commit后，自动调用post-commit hook script群发邮件到项目组。实现过程是Commit后post-commithook 自动调用，发送邮件。
我自己写了一个功能简单的sendmail.py来辅助发送邮件。
现在关注一下主要的实现：post-commit, sendmail.py
post-commit的内容如下：
# REPOS-PATH (the path to this repository)
REPOS="$1"
# REV (the number of the revision just committed)
REV="$2"
LANG=zh_CN.GB18030
#没有这句不起作用
export LANG
HOOK_DIR=/root/gaoyj/test_repo/hooks
SVNLOOK_BIN=/usr/local/subversion/bin/svnlook
PYTHON_BIN=/usr/bin/python
${PYTHON_BIN} ${HOOK_DIR}/sendmail.py ${REPOS} ${REV}
有以下注意事项：
（1）svn调用post-commit时，传递了两个参数: REPOS-PATH（Repository路径）和REV版本号
（1）如果收到邮件中，无法显示中文，应在post-commit中设置环境变量LANG并且export
（2）post-commit执行时，无法获得PATH变量的值，所以script中应使用绝对路径
（3）将Repository的hook目录下post-commit.tmpl改为post-commit(windows下改为post-commit.bat),并赋予执行权限。
sendmail.py的原理是通过调用svnlook获得提交信息(版本号、提交时间、提交者、commitlog，发生变更的文件)，内容如下：
#coding: gb2312
import sys
import os
import smtplib
from email.mime.text import MIMEText
mail_host = 'smtp.example.com' #发送邮件的smtp地址
mail_user = 'example' # 发送通知邮件的用户名
mail_pass = 'example_passwd' # 用户的密码
me = 'Example' + '<' + 'example' + '@' + 'example.com' + '>' #发送邮件人的地址标识
to_list = ['person_a@example.com', 'person_b@example.com', 'person_c@example.com'] # 收件人
html_template = """
<html>
<h2 style="color:#FFFFFF; background: #008040;">基本信息</h2>
<div> <b>版本库：</b>
<a href="svn:%s">%s</a>
</div>
<div> <b>版本号：</b>%s
</div>
<div>
<b>提交者：</b>%s
</div>
<div>
<b>提交时间：</b>%s
</div>
<h2 style="color:#FFFFFF; background: #4682B4;">提交说明</h2> <font size="4" color="#BF6000"><xmp>%s</xmp></font>
<h2 style="color:#FFFFFF; background: #5353A8;">文件清单</h2>
<xmp>%s</xmp>
<hr>
<center>
☆ Powered by
<a href="http://garyelephant.me">Gary</a>
</center>
<center>
☆ Inspired by
<a href="http://crearo-sw.blogspot.com">CREARO-SW</a>
</center>
</html>
"""
def write_mail_content(repo, rev):
"""
repo: repository
rev: revision
"""
repo_name = get_repo_name(repo)
author = get_author(repo, rev)
date = get_date(repo, rev)
log = get_log(repo, rev)
file_list = get_file_list(repo, rev)
content = html_template % (repo, repo_name, rev, author, date, log, file_list
return content
def get_repo_name(repo):
return os.path.basename(repo)
def get_author(repo, rev):
"""svnlook author -r REV REPOS 获得提交者
"""
cmd = '%s author -r %s %s' % (svnlook_bin_path, rev, repo)
output = os.popen(cmd).read()
return output
def get_date(repo, rev):
"""svnlook date -r REV REPOS 获得提交时间
"""
cmd = '%s date -r %s %s' % (svnlook_bin_path, rev, repo)
output = os.popen(cmd).read()
return output
def get_log(repo, rev):
"""svnlook log -r REV REPOS 获得提交日志
"""
cmd = '%s log -r %s %s' % (svnlook_bin_path, rev, repo)
output = os.popen(cmd).read()
return output
def get_file_list(repo, rev):
"""svnlook changed -r REV REPOS 获得发生变更的文件
"""
cmd = '%s changed -r %s %s' % (svnlook_bin_path, rev, repo)
output = os.popen(cmd).read()
return output
def send_mail(msg, sender, to_list):
try:
s = smtplib.SMTP()
s.connect(mail_host)
s.login(mail_user,mail_pass)
s.sendmail(sender, to_list, msg.as_string())
s.close()
return True
except Exception, e:
print str(e)
return False
def write_mail(sender, to_list, sub, content):
msg = MIMEText(content, _subtype = 'html', _charset='gb2312')
msg['Subject'] = sub
msg['From'] = sender
msg['To'] = ';'.join(to_list)
return msg
global svnlook_bin_path
if __name__ == '__main__':
svnlook_bin_path = '/usr/local/subversion/bin/svnlook'
subject = 'SVN Commit Notification'
content = write_mail_content(sys.argv[1], sys.argv[2])
msg = write_mail(me, to_list, subject, content)
send_mail(msg, me, to_list)
有以下注意事项：
（1）发送通知邮件用户的密码是明文保存的，存在安全隐患
（2）用os.popen调用svnlook需要使用svnlook的绝对路径
源码托管在Github上：https://github.com/garyelephant/SVN-Hooks
References:
[1] SVN服务器与客户端Hooks脚本的使用http://scmbob.org/subversion-hooks-windows.html
[2] O'Reilly Media 出版的Subversion与版本控制，http://svnbook.red-bean.com/
[3] Subversion Hooks,
http://www.worldhello.net/doc/svn_hooks/svn_hooks.mm.htm
[4] A SubversionPre-Commit Hook
http://wordaligned.org/articles/a-subversion-pre-commit-hook
[5]
Svn hookencoding problem
http://stackoverflow.com/questions/2213670/svn-hook-encoding-problem
转载本文请注明作者和出处http://garyelephant.me，请勿用于任何商业用途！
Author:GaryGao关注互联网、分布式、高并发、自动化、软件团队
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