[Bug 1762889] Re: dh_translations doesn't strip .desktop files when more than 1 pot target with meson

[Gunnar Hjalmarsson]

Attached please find an idea which addresses all the packages mentioned
above.

In addition to ignoring help-* domains, it makes dh_translations ignore
a hardcoded list of known domains. In case of g-c-c we could get rid of
all the workarounds in debian/control, and libgweather would only need
to build libgweather-locations.pot from debian/rules (since
dh_translations don't build more than one POT file).

** Patch added: "dh_translations.diff"
   https://bugs.launchpad.net/ubuntu/+source/pkgbinarymangler/+bug/1762889/+attachment/5110253/+files/dh_translations.diff

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https://bugs.launchpad.net/bugs/1762889

Title:
  dh_translations doesn't strip .desktop files when more than 1 pot
  target with meson

Status in pkgbinarymangler package in Ubuntu:
  New

Bug description:
  The gnome.help() meson function creates a help-$project-pot target.
  This confuses dh_translations which complains:

  dh_translations: more than one meson translation domain found (help-
  gnome-calculator,gnome-calculator), don't know which one to use

  I think the only consequence of this is that the .desktop doesn't have
  its translations stripped and replaced with X-Ubuntu-Gettext-Domain=

  This means that Ubuntu translators are unable to update those
  translations.

  Affected Apps
  =============
  Therefore, this issue affects GNOME apps in main that use meson and also include help files.

  gnome-control-center is also affected because it happens to have an
  extra gettext domain (but does not ship help).

  libgweather gets the warning because it has a second gettext domain
  but it doesn't ship any .desktop files so I think the warning is
  harmless.

  Suggestion
  ==========
  Maybe dh_translations could just exclude targets that start with "help-". That would fix most of these cases.

  Other Info
  ==========
  This bug is split off LP: #1751820

  pkgbinarymanagler 136 in bionic

  References
  ==========
  http://mesonbuild.com/Gnome-module.html#gnomeyelp
  http://mesonbuild.com/Localisation.html

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