[Bug 2091811] Re: SRU: backport timestamps in subsection messages

[Matthias Klose]

** Also affects: sbuild (Ubuntu Jammy)
   Importance: Undecided
       Status: New

** Also affects: sbuild (Ubuntu Noble)
   Importance: Undecided
       Status: New

** Also affects: sbuild (Ubuntu Oracular)
   Importance: Undecided
       Status: New

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Title:
  SRU: backport timestamps in subsection messages

Status in sbuild package in Ubuntu:
  New
Status in sbuild source package in Jammy:
  New
Status in sbuild source package in Noble:
  New
Status in sbuild source package in Oracular:
  New

Bug description:
  For upcoming test rebuilds, we would like to analyze build times, and
  measuring different phases of a build as well, like build-chroot's
  upgrade times, installation of build dependencies, and the build
  itself.  Therefore we add timestamps to existing log messages already
  emitted by sbuild. These changes are in plucky (sbuild 0.87.1ubuntu2),
  and need to be backported up to jammy (the sbuild from the distro is
  used for the launchpad builders).

  [ Impact ]

   * Emit time stamps in the build log for subsection messages.

  [ Test Plan ]

   * sbuild has an autopkg test doing a test build of a package.
     Make sure that the subsection messages show the timestamp.

  [ Where problems could occur ]

   * This only has an (desired) impact for the build log.  There are
     currently no known tools using these messages for parsing.

     The messages are already in ascii formatted boxes, the timestamp
     just replaces some white space, so even the length of the build
     log stays the same.

  [ Other Info ]

   * We would like to start the test rebuilds on Dec 20, so it
     would be nice to have that change availabe in the updates
     pocket at that time.

   * This change is already accepted upstream and will be part of
     a 0.87.2 or 0.88 release.

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