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Git + Twitter = Friedcode


22nd of April 2009

Git + Twitter = Friedcode I've now written my first Git hook. For the people who don't know what Git is you have either lived under a rock for the past few years or your not into computer programming at all.

The hook is a post-commit hook and what it does is that it sends the last commit message up to a twitter account I called "friedcode". I guess it's not entirely useful but for you who want to be loud about your work and the progress you make I guess it can make sense. Or if you're a team and you want to get a brief overview of what your team mates are up to. For me, it was mostly an experiment to try Git hooks and pytwitter. Here's how I did it:

Go into the .git directory and edit the file 'post-commit':

 $ cd myproject
 $ cd .git/hooks
 $ jed post-commit

Here's the script I wrote which contains some horrible python one-liners simply because my sed/awk-fu isn't good enough:

 #: Nothing
 last_message=`git log --pretty=oneline -n1`
 last_message=`echo $last_message |  python -c "import sys;sys.stdout.write(\
 ' '.join(sys.stdin.read().strip().split()[1:]))"`
 repo_name=`git info | head -n1`
 repo_name=`echo $repo_name | python -c "import \ 
  sys;sys.stdout.write(sys.stdin.read().strip().split('/')[-1])"`
 echo "($repo_name) $last_message" | Update_friedcode.py

To enable the hook what you have to do is simply make it executable and you're done:

 $ chmod +x post-commit

Then I needed the pytwitter script called Update_friedcode.py which I've put in '~/bin':

 #!/usr/bin/env python
 import sys
 """To use:
 $ echo "I ate too much" | ./Update_friedcode.py
 """
 U = 'friedcode'
 P = <something something>

 import pytwitter
 client = pytwitter.pytwitter(username=U, password=P)
 status_update = sys.stdin.read().strip()[:140]
 client.statuses_update(status=status_update)



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