[Bug 1855898] Please test proposed package

[Łukasz Zemczak]

Hello Balint, or anyone else affected,

Accepted wslu into disco-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/wslu/2.3.2-0ubuntu2~19.04.3 in a
few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-disco to verification-done-disco. If it does not fix
the bug for you, please add a comment stating that, and change the tag
to verification-failed-disco. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: wslu (Ubuntu Bionic)
       Status: New => Fix Committed

** Tags added: verification-needed-bionic

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https://bugs.launchpad.net/bugs/1855898

Title:
  Cache results of detecting X and PulseAudio when starting environment

Status in wslu package in Ubuntu:
  Fix Released
Status in wslu source package in Bionic:
  Fix Committed
Status in wslu source package in Disco:
  Fix Committed
Status in wslu source package in Eoan:
  Fix Committed

Bug description:
  [Impact]

   * Detecting X and PulseAudio takes some time when starting every shell even when it is unlikely that those servers go away between opening new shells.
   * The fix is reusing cached info when starting new shells.

  [ Test Case ]

   * Start X server and PulseAudio server on Windows, the host WSL system
   * run:

  rm -f $HOME/.config/wslu/integration-cache
  unset DISPLAY
  unset PULSE_SERVER
  time . /etc/profile.s/wsl-integration.sh
  echo $DISPLAY $PULSE_SERVER
  cat $HOME/.config/wslu/integration-cache
  time . /etc/profile.s/wsl-integration.sh

   * Ran all of that again with X server and PulseAudio server turned
  off

  [Regression Potential]

   * Wrong implementation of  caching logic may break auto detection or
  cache a wrong result. The test case ensures that auto detection is
  still working and also checks the cache content.

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