apport should gather package information about click packages

It looks like this will require some changes to report.py's add_package_info and fileutils.py's find_file_package and likely_packaged.

Here is an exampe of an incomplete report in the error tracker:

https://errors.ubuntu.com/oops/d4735084-2c76-11e4-acb3-fa163e75317b

To be clear that incomplete report is missing Package and SourcePackage information.

Actually, it's get_file_package of backends/packaging-apt-dpkg.py that would need some modification. Perhaps we could check and see if the path contains "/usr/share/click/preinstalled/" or "/opt/click.ubuntu.com/" before using the "click info" command.

So far we never talked about click support in apport so far; a lot of concepts are quite different. E. g. they don't necessarily have an LP project, it does not necessarily coincide with the click name, don't have source packages, can't be retraced, don't have package dependencies.

So we need to invent some new fields and teach the error tracker about it. E. g. Click: and SystemImageVersion:, and it wouldn't have Package:/SourcePackage:/Dependencies. Pretty much nothing in backends/packaging-apt-dpkg.py applies to them, so they should rather get an entirely new backend, and we need to add support for having multiple ones instead of selecting one at build time.

Martin and I discussed an interim solution for RTM / utopic. If I recall correctly, you mentioned creating a separate hook that would gather call "click info" and gather information about the package and its version. This separate hook would need to be called by the ubuntu hook. Does that sound right?

> This separate hook would need to be called by the ubuntu hook.

No, it can and should just be placed into /usr/share/apport/general-hooks/, maybe "clickinfo.py". This avoids referring to that interim hack in the code or any other hooks, so that we can easily replace and test it.

Ah, I'd forgotten that all hooks in /usr/share/apport/general-hooks/ are run.

I've uploaded the interim solution to Vivid now. See this commit for the implementation:

http://bazaar.launchpad.net/~ubuntu-core-dev/ubuntu/vivid/apport/ubuntu/revision/2364

Here is a crash report from Vivid on a mako device:

https://errors.ubuntu.com/oops/d94a7b00-6376-11e4-8f2e-fa163e4ccdf2

Everything looks good.

However, its not possible to find these crashes in the Error Tracker frontend because they don't have a crash signature.

Brian fixed that a while ago, thanks!

apport (2.14.7-0ubuntu9) vivid; urgency=medium

  * data/general_hooks/clickinfo.py: Created a hook to determine package
    and version information for executables that are from click packages.

 -- Brian Murray <email address hidden> Fri, 31 Oct 2014 14:41:14 -0700