[Bug 1693900] Re: apt-get update should return exit code != 0 on error

[Jarno Suni]

juliank, Do you mean ppa-purge should be translated to completely
different programming language, and that I can not even rely on apt-get
outputting something that matches '^Err[ :]' to stdout in such cases?
Sounds difficult.

What do you mean by "Our results are boolean, we might not be able to
really influence the exit status." I do not understand why the "results"
could not be changed to be something else.

You say: "You don't want to prevent the system from being upgraded (in an update&&upgrade type scenario) just because some third party repository disappeared."
Something like 
'apt-get update || [ $? -ne "$FATAL_APT_UPDATE_ERROR" ] && apt-get upgrade'
in command line would let upgrade happen even in case of partially successful update.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to apt in Ubuntu.
https://bugs.launchpad.net/bugs/1693900

Title:
  apt-get update should return exit code != 0 on error

Status in apt package in Ubuntu:
  Triaged

Bug description:
  When running 'apt-get update' (e.g. on a container install post-
  install script), apt-get return with exit code 0, even so it wasn't
  able to "update" properly. E.g.:

  + apt-get update
  Err:1 http://de.archive.ubuntu.com/ubuntu xenial InRelease
    Temporary failure resolving 'de.archive.ubuntu.com'
  Err:2 http://security.ubuntu.com/ubuntu xenial-security InRelease
    Temporary failure resolving 'security.ubuntu.com'
  Err:3 http://de.archive.ubuntu.com/ubuntu xenial-updates InRelease
    Temporary failure resolving 'de.archive.ubuntu.com'
  Reading package lists... Done
  W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/xenial/InRelease  Temporary failure resolving 'de.archive.ubuntu.com'
  W: Failed to fetch http://de.archive.ubuntu.com/ubuntu/dists/xenial-updates/InRelease  Temporary failure resolving 'de.archive.ubuntu.com'
  W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/InRelease  Temporary failure resolving 'security.ubuntu.com'
  W: Some index files failed to download. They have been ignored, or old ones used instead.

  It should be corrected to return useful exit code, so that scripts can
  take the appropriate actions ...

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1693900/+subscriptions