[Bug 919216] Re: aptitude returns 0 exit status code even if the requested action is not successful

[Bug Watch Updater]

** Changed in: aptitude
       Status: Fix Released => New

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https://bugs.launchpad.net/bugs/919216

Title:
  aptitude returns 0 exit status code even if the requested action is
  not successful

Status in aptitude:
  New
Status in “aptitude” package in Ubuntu:
  Fix Committed

Bug description:
  I have experienced two cases where aptitude returns a 0 exit status
  code, even if it prints error messages to the terminal.

  Case 1: A package cannot be installed due to unmet dependencies.
  Example: (installing something that depends on sun-java on a host with the "partner" repository disabled)

      > sudo /usr/bin/aptitude -y install hadoop-0.20
      Reading package lists... Done
      Building dependency tree
      Reading state information... Done
      Reading extended state information
      Initializing package states... Done
      The following packages are BROKEN:
        hadoop-0.20
      The following NEW packages will be installed:
        hadoop-0.20-native{a} liblzo2-2{a}
      0 packages upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
      Need to get 41.2MB of archives. After unpacking 92.3MB will be used.
      The following packages have unmet dependencies:
        hadoop-0.20: Depends: sun-java6-jre which is a virtual package.
                     Depends: sun-java6-bin which is a virtual package.
      The following actions will resolve these dependencies:

      Keep the following packages at their current version:
      hadoop-0.20 [Not Installed]
      hadoop-0.20-native [Not Installed]

      Score is -9868

      Writing extended state information... Done
      Reading package lists... Done
      Building dependency tree
      Reading state information... Done
      Reading extended state information
      Initializing package states... Done

      > echo $?
      0

  Expected result: Non-zero exit status code

  Case 2: The package name does not exist
  Example:
     > sudo aptitude install bogus-package
     Reading package lists... Done
     Building dependency tree
     Reading state information... Done
     Reading extended state information
     Initializing package states... Done
     Couldn't find any package whose name or description matched "bogus-package"
     Couldn't find any package whose name or description matched "bogus-package"
     No packages will be installed, upgraded, or removed.
     0 packages upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
     Need to get 0B of archives. After unpacking 0B will be used.
     Reading package lists... Done
     Building dependency tree
     Reading state information... Done
     Reading extended state information
     Initializing package states... Done

     > echo $?
     0

  Expected result: Non-zero exit status code

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