Merge lp:~shnatsel/ppa-purge/drop-awk-dependency into lp:ppa-purge

Thanks for the patch, but I'm not entirely convinced of its necessity.
mawk is Priority: required, so it's present on every image and the dependency isn't a big deal.

Also, you want to grep for 'install$', otherwise you'll catch packages with "install" in their name.

Good catch with grep!
Actually, both this version and the one with awk also match "deinstall". Fixing.

Fixed matching "install" in package name
Fixed matching "deinstall" package state

Thanks for refining the scripts!

awk can also do it properly without regexp fiddling:
 dpkg --get-selections | awk '{if ($2=="install") print $1}'

Yeah, I believe awk is a powerful tool, now merge this please :)

Or fix the trunk with this awk tweak and add some dependencies to debian/control at least.

I don't care about this particular merge anymore because I ended up rewriting most of the code anyway: lp:~shnatsel/ppa-purge/ppa-purge-aptdaemon

The new lp:~shnatsel/ppa-purge/ppa-purge-aptdaemon branch seems fairly stable and robust to me now, but because of an upstream bug that was fixed just yesterday it requires a very recent aptdaemon version that's available only in Ubuntu Precise. Which means that the current version still will be around until Precise release, which means that this branch still needs a merge ;)

Dependency should probably be apt-get | aptitude, right?

Of course, aptitude is a really poor choice until bug #831768 is dealt with...

Right now it depends on aptitude because of its reinstallation behavior (see a FIXME in the code), and on apt for collecting data, so it should depend on both apt-get and aptitude.

One of the possible solutions is determining the exact version to install and force installing that particular version (I did that in the aptdaemon branch), then it can depend on only one of the tools.