[Bug 1815760] Re: Additional hooks for update

[Julian Andres Klode]

xenial 1.2.31 looks good:

+ apt-cache policy apt
+ grep -o Installed.*
Installed: 1.2.31
+ apt update -o APT::Update::Post-Invoke-Stats::=/bin/echo TEST1815760
Hit:1 http://archive.ubuntu.com/ubuntu xenial InRelease
Get:2 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]                             
Get:3 http://archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]                                    
Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB]       
Get:5 http://archive.ubuntu.com/ubuntu xenial-proposed InRelease [260 kB]                  
Fetched 586 kB in 0s (848 kB/s)                                                              
Reading package lists... Done
Building dependency tree       
Reading state information... Done
23 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 xenial InRelease
Get:2 http://archive.ubuntu.com/ubuntu xenial-updates InRelease [109 kB]                             
Get:3 http://archive.ubuntu.com/ubuntu xenial-backports InRelease [107 kB]                                    
Get:4 http://security.ubuntu.com/ubuntu xenial-security InRelease [109 kB]        
Get:5 http://archive.ubuntu.com/ubuntu xenial-proposed InRelease [260 kB]       
Fetched 586 kB in 0s (832 kB/s)                                                           
Reading package lists... Done

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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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