[Bug 1815760] Re: Additional hooks for update

[Julian Andres Klode]

As does cosmic 1.7.4:

+ apt-cache policy apt
+ grep -o Installed.*
Installed: 1.7.4
+ apt update -o APT::Update::Post-Invoke-Stats::=/bin/echo TEST1815760
Get:1 http://security.ubuntu.com/ubuntu cosmic-security InRelease [88.7 kB]
Hit:2 http://archive.ubuntu.com/ubuntu cosmic InRelease 
Get:3 http://archive.ubuntu.com/ubuntu cosmic-updates InRelease [88.7 kB]           
Get:4 http://archive.ubuntu.com/ubuntu cosmic-backports InRelease [74.6 kB]                   
Get:5 http://archive.ubuntu.com/ubuntu cosmic-proposed InRelease [92.5 kB]
Fetched 345 kB in 1s (632 kB/s)                              
Reading package lists... Done
Building dependency tree       
Reading state information... Done
22 packages can be upgraded. Run 'apt list --upgradable' to see them.
TEST1815760
+ apt-get update -o APT::Update::Post-Invoke-Stats::=/bin/echo TEST1815760
Hit:1 http://archive.ubuntu.com/ubuntu cosmic InRelease
Hit:2 http://security.ubuntu.com/ubuntu cosmic-security InRelease
Hit:3 http://archive.ubuntu.com/ubuntu cosmic-updates InRelease
Hit:4 http://archive.ubuntu.com/ubuntu cosmic-backports InRelease
Hit:5 http://archive.ubuntu.com/ubuntu cosmic-proposed InRelease
Reading package lists... Done


- all verified

** Tags removed: verification-needed verification-needed-bionic verification-needed-cosmic verification-needed-xenial
** Tags added: verification-done verification-done-bionic verification-done-cosmic verification-done-xenial

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https://bugs.launchpad.net/bugs/1815760

Title:
  Additional hooks for update

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

Bug description:
  [Impact]
  We want to write some scripts for apt that run on update if apt shows an update count, to provide further details about the new cache.

  [Test case]

  Specify a APT::Update::Post-Invoke-Stats script and check that

  (1) it shows in apt update
  (2) it does not show in apt-get update

  [Regression potential]
  More scripts may fail the update now, but there should not be any registered so far.

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