Re: F35 Change: Restart User Services after Upgrade (very-very-very late System-Wide Change proposal)

Miroslav Suchý <msuchy@xxxxxxxxxx> · Fri, 30 Jul 2021 14:03:33 +0200



    Dne 29. 07. 21 v 11:37 Zbigniew
      Jędrzejewski-Szmek napsal(a):

    
      Thanks. I added a paragraph and reworded some stuff. Please say if
you think there should be more.
    
    ad Detailed Description - are the user services documented
      somewhere in upstream? I found just various blogposts describing
      this. Link to upstream documentation would be nice.
    ad Scope
    This: 

      
          Switch from %systemd_user_postun to %systemd_user_postun_with_restart
            if appropriate.
          Make sure that their user services behave properly during
            restart.
        
      
      is still vague. Especially the part "if appropriate". I suggest to
      write it like:
    """

    
    When the service is safe to restart - e.g.,
      app-sealertauto@autostart.service or
      evolution-addressbook-factory.service then package maintainer are
      suggests to switch from %systemd_user_postun to %systemd_user_postun_with_restart
    When the service CANNOT be safely restarted - e.g.
        restarting of plasma-ksmserver.service results in log off - then
        FIXME do nothing, or what?
    When you are in doubt and your service may or may not not
        result in bad user experience then FIXME (what than?).
    ad How to Test
    Look at logs or otherwise verify that the
      script was restarted, and for an update, that the new version is
      running.
    
    This can be tricky and the log is quite verbose.
    I suggests to run
    $ systemctl --user status pipewire.service

      ● pipewire.service - Multimedia Service

           Loaded: loaded (/usr/lib/systemd/user/pipewire.service;
      disabled; vendor preset: disabled)

           Active: active (running) since Fri 2021-07-30 12:43:34 CEST;
      3s ago
    ...
    And check whether the time is later then the time when the rpm
      transaction started.
    Miroslav

    
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