Add uninstallation instructions

[treyhunner]

Uninstallation instructions or a script would be extremely helpful for those that installed critic just to play with it.

[jensl]

Certainly. In short something like this should undo everything (except uninstalling packages that were installed):

# service critic-main stop
# rm -r /etc/critic /var/{lib,log,cache,run}/critic /usr/share/critic /var/git
# rm /etc/apache2/sites-{enabled,available}/critic-main /etc/init.d/critic-main /usr/bin/criticctl
# sudo -u critic psql -c "drop database critic;"
# sudo -u postgres psql -c "drop user critic;"
# delgroup --system critic
# deluser --system critic
# update-rc.d critic-main remove
# service apache2 restart

An uninstall script is of course on the todo list.

[mo]

To delete the critic user/role from postgres, I had to run as the postgres user rather than the critic user, i.e.:

sudo -u postgres psql -c "drop role critic;"

[mo]

There is now a basic uninstall.py on master ( 799eb18 ).

[jensl]

Many thanks, Martin!