These workflow tips are for me to remember how I managed to make certain things more efficient.

This episode started from my local neutron failing to start due to:

2015-03-16 10:56:59.272 6232 CRITICAL neutron [-] ArgsAlreadyParsedError: arguments already parsed: cannot register CLI option

This was caused by this upstream change:

015-03-16 10:56:59.162 6232 TRACE neutron.service from neutron.openstack.common import log as logging

I had to change all the from neutron.openstack.common import log as logging lines to from oslo_log import log as logging. This isn’t a big deal and you’d think sed would work, but it can’t work due to the difficulties involved in reordering the imports into alphabetical order.

Workflow

Using tmux I’d make a vertical split and make my edits in one of the panes. In the other pane I run:

watch -n 1 'find . -name "*.py" | xargs grep "neutron.openstack.common import log as logging"'

Having an updating list of what files I need to update is helpful and keeps me sane.