[Bug 1815761] Re: Alternative to Dpkg::Post-Invoke that runs even if dpkg did not have to be invoked

[Launchpad Bug Tracker]

This bug was fixed in the package apt - 1.0.1ubuntu2.22

---------------
apt (1.0.1ubuntu2.22) trusty; urgency=medium

  * apt.dirs: Install auth.conf.d directory (LP: #1818996)
  * Merge translations from 1.2.31

apt (1.0.1ubuntu2.21) trusty; urgency=medium

  [ Julian Andres Klode ]
  * travis CI: Use docker container to get useful results
  * fix and non-silent fail dpkg-overwrite error test (LP: #1817088)
  * Introduce experimental 'never' pinning for sources (LP: #1814727)
  * Add support for /etc/apt/auth.conf.d/*.conf (netrcparts) (LP: #1811120)
  * Add a Packages-Require-Authorization Release file field (LP: #1814727)
  * NeverAutoRemove kernel meta packages (LP: #1787460)
  * Introduce APT::Install::Pre-Invoke / Post-Invoke-Success (LP: #1815761)

  [ David Kalnischkies ]
  * ftparchive/writer.cc: use a std::vector instead of hardcoded array
    (LP: #1817048)

 -- Julian Andres Klode <juliank at ubuntu.com>  Tue, 12 Mar 2019 15:15:54
+0100

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https://bugs.launchpad.net/bugs/1815761

Title:
  Alternative to Dpkg::Post-Invoke that runs even if dpkg did not have
  to be invoked

Status in apt package in Ubuntu:
  Fix Released
Status in apt source package in Trusty:
  Fix Released
Status in apt source package in Xenial:
  Fix Released
Status in apt source package in Bionic:
  Fix Released
Status in apt source package in Cosmic:
  Fix Released
Status in apt source package in Disco:
  Fix Released

Bug description:
  [Impact]
  Dpkg::Post-Invoke is run only when dpkg had to be run. We'd like to be able to show some extra output even if no changes had been made. Imagine "the user disabled the security repo, and does not get any updates shown scenario" - we'd like to be able to tell them that there are security updates available after all.

  [Test case]
  1. Specify an APT::Install::Post-Invoke-Success hook

  2. Make sure it runs even if there are no changes, using apt upgrade
  -tnow

  [Regression potential]
  No-change upgrades/install can now fail if this new hooks fail.

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