[Merge] lp:~brian-murray/apt-clone/foreign-packages into lp:apt-clone

[Michael Vogt]

Hi Brian, I think this needs some tweaking, the origins will always contain the "now" origin (which is the installed package).

This is what you get:
$ python3 -c 'import apt;print(apt.Cache()["libc6"].installed.origins)'
[
<Origin component:'main' archive:'wily' origin:'Ubuntu' label:'Ubuntu' site:'archive.ubuntu.com' isTrusted:True>, 
 <Origin component:'' archive:'now' origin:'' label:'' site:'' isTrusted:False>
]

One easy way would be to simply filter out all "now" lines:
e.g.
"""
        for o in pkg.installed.origins:
            if o.archive == "now" and o.origin == "":
                    continue
""""

Here is a full example:
"""#!/usr/bin/python3

import apt

if __name__ == "__main__":
    foreign = []
    cache = apt.Cache()

    print("total:", len([pkg.name for pkg in cache if pkg.installed]))
    for pkg in cache:
        if not pkg.installed:
                continue
        for o in pkg.installed.origins:
            if o.archive == "now" and o.origin == "":
                    continue
            import lsb_release
            distro_id = lsb_release.get_distro_information()['ID']
            if o.origin != distro_id:
                    foreign.append("%s %s %s\n" % (
                            pkg.name, pkg.installed.version, o.origin))
                    break
    print("foreign: ",len(foreign))
    print(foreign)
"""

Otherwise it looks good. 

-- 
https://code.launchpad.net/~brian-murray/apt-clone/foreign-packages/+merge/264912
Your team Ubuntu Core Development Team is requested to review the proposed merge of lp:~brian-murray/apt-clone/foreign-packages into lp:apt-clone.