[Labs-l] Gerrit Patch Uploader - technical side

[Merlijn van Deen]

I just announced the Gerrit Patch Uploader -
https://tools.wmflabs.org/gerrit-patch-uploader/ - on wikitech-l. This is
meant for the Tool Labs crowd as a note on how I implemented it.

First of all, I'm using the new web (lighttpd) scheme. To run a Flask
application, you need to setup ~/.lighttpd.conf and an fcgi file. The
lighttpd conf is available at [1], while the app.fcgi is at [2].

For the lighttpd conf, debug.log-request-handling = "enable" is really
useful - it tells you how lighttpd is handling your request. There are some
ohter debug options: [3]

The app.fcgi activates it's own request logging, which helps to understand
how Flask is handling the request.

The user identification is handled by OAuth - not really meant for this,
but it works, thanks to the 'userinfo' api function. I have published the
Flask blueprint for this seperately as flask-mwoauth [4]. Please check
demo.py [5] for info on how to use it.

If you have any questions on running a Flask app over fcgi on TL, or using
oauth-based identification, please let me know.

Merlijn

[1]
https://github.com/valhallasw/gerrit-patch-uploader/blob/master/lighttpd.conf
[2] https://github.com/valhallasw/gerrit-patch-uploader/blob/master/app.fcgi
[3] http://redmine.lighttpd.net/projects/1/wiki/DebugVariables
[4] https://github.com/valhallasw/flask-mwoauth
[5] https://github.com/valhallasw/flask-mwoauth/blob/master/demo.py
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