OpenSource, Git Push Email Notification

git support email notification with diff on each push. Here is how to do it.

1.  go to your git hooks directory, $git/hooks.
2.  rename post-receive.sample to post-receive
3.  uncomment the last line, so the script will run this after someone git push.
     . /usr/share/doc/git/contrib/hooks/post-receive-email
4.  go to your git directory, $git
5.  add to your "config" file:
     [hooks]
     mailinglist = "mail1@gmail.com mail2@gmail.com"
     showrev = "git show -C %s; echo"
     emailprefix = "[your email subject prefix]"
6. open "description" file, add the project name if you like
7. try git push something from somewhere else, and you will get the git notification email.