touch-packages team mailing list archive

[Daniel van Vugt <daniel.van.vugt@xxxxxxxxxxxxx>]

Sorry for the confusion. Most of the 0.7.0 series got merged into 0.6.0
at a late stage. I've verified everything in 0.6.0 is also fixed in
0.7.0. So although the branched fixes in 0.7.0 have not been "released"
yet, the equivalent fixes in 0.6.0 have. No need to mention them in 0.7
any more.

** Changed in: mir
       Status: Fix Committed => Fix Released

** Changed in: mir
    Milestone: 0.7.0 => None

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https://bugs.launchpad.net/bugs/1293944

Title:
  Mir deb packages with versioned names cannot be installed
  simultaneously any more

Status in Mir:
  Fix Released
Status in Mir 0.6 series:
  Fix Released
Status in “mir” package in Ubuntu:
  Fix Released

Bug description:
  Mir has some packages with ABI-versioned names (libmirserver17,
  libmirclient7) so that multiple versions can be installed
  simultaneously, in theory. However this plan is not working;

  Package: libmirserver17
  Section: libs
  Architecture: i386 amd64 armhf arm64
  Multi-Arch: same
  Pre-Depends: ${misc:Pre-Depends}
  Depends: ${misc:Depends},
           ${shlibs:Depends},
           libmirplatform (= ${binary:Version}),
           libmirplatformgraphics-mesa (= ${binary:Version}) |
             libmirplatformgraphics-android (= ${binary:Version}),

  When we bump an ABI number, we also increase the ${binary:Version}. So
  you can see from the names that libmirplatform* can only have one
  version installed at a time. And that indirectly means that
  libmirserverN can never be installed simultaneously with
  libmirserverN+1.

  This also leads to annoying CI failures as we're seeing this week:

  The following packages have unmet dependencies:
   libmirserver16 : Depends: libmirplatform (= 0.1.6+14.04.20140310-0ubuntu1) but 0.1.7+autopilot0 is to be installed
                    Depends: libmirplatformgraphics-mesa (= 0.1.6+14.04.20140310-0ubuntu1) but 0.1.7+autopilot0 is to be installed or
                             libmirplatformgraphics-android (= 0.1.6+14.04.20140310-0ubuntu1) but 0.1.7+autopilot0 is to be installed
  E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).

  There are at least two possible solutions I can think of so far:

  (1) Change our Depends' to not use straight equality. So we must change:
     libmirplatform (= ${binary:Version}),
  to:
     libmirplatform (>= ${binary:Version}),
  or even to
     libmirplatform (>= some_older_version_based_on_real_requirements),

  (2) Change libplatform* to include some ABI number in their names. Not
  ideal.

  I like (1).

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