[Bug 659438] Re: Installation/Removal fails because of package which could not be located (failure in apt.Cache.required_download)

[Sebastian Heinlein]

The reason for this bug is a missing call of pkgApplyStatus()
(apt-pkg/algorithms.cc). So we fail if there are packages in the
reqreinst state.

See also lp:~aptdaemon-developers/aptdaemon/fix-cannot-locate-file for a
regression test.

We should add something similar to CacheFile::CheckDeps
(cmdline/apt-get.cc) to apt.cache.Cache

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https://bugs.launchpad.net/bugs/659438

Title:
  Installation/Removal fails because of package which could not be
  located (failure in apt.Cache.required_download)

Status in Aptdaemon:
  Fix Committed
Status in “apt” package in Ubuntu:
  Invalid
Status in “aptdaemon” package in Ubuntu:
  Fix Released
Status in “python-apt” package in Ubuntu:
  Invalid
Status in “apt” source package in Maverick:
  Invalid
Status in “aptdaemon” source package in Maverick:
  Fix Released
Status in “python-apt” source package in Maverick:
  Invalid

Bug description:
  Steps to reproduce:

  1. Run apt-get nstall ms-ttcorefonts-installer in a terminal
  2. Close the terminal window at the EULA question (apt-get/dpkg/debconf) will sting hang in the background and lock the system)
  3. Reboot


  Traceback (most recent call last):
    File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 768, in simulate
      return self._simulate_helper(trans, status_path)
    File "/usr/lib/python2.6/dist-packages/aptdaemon/worker.py", line 936, in _simulate_helper
      return depends, status, self._cache.required_download, \
    File "/usr/lib/python2.6/dist-packages/apt/cache.py", line 218, in required_download
      pm.get_archives(fetcher, self._list, self._records)
  SystemError: E:I wasn't able to locate file for the liblua50 package. This might mean you need to manually fix this package.

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