SVN Hook + Python实现commit后自动发送邮件
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 = ['[email protected]', '[email protected]', '[email protected]'] # 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
http://stackoverflow.com/questions/2213670/svn-hook-encoding-problem
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Author:GaryGao关注互联网、分布式、高并发、自动化、软件团队