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manuals: document "mime-xdg" class and MIME_XDG_PACKAGES

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(From yocto-docs rev: dabd2e95cf8ba8ed620bfd135deb6cfcf5d74b16)

Signed-off-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Michael Opdenacker
2022-10-31 14:18:30 +01:00
committed by Richard Purdie
parent 0eae628216
commit 1d2681fa72
4 changed files with 33 additions and 5 deletions
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documentation/ref-manual/classes.rst
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@@ -1604,6 +1604,27 @@ The :ref:`mime <ref-classes-mime>` class generates the proper post-install and p
These scriptlets call ``update-mime-database`` to add the MIME types to
the shared database.
.. _ref-classes-mime-xdg:
``mime-xdg.bbclass``
====================
The :ref:`mime-xdg <ref-classes-mime-xdg>` class generates the proper
post-install and post-remove (postinst/postrm) scriptlets for packages
that install ``.desktop`` files containing ``MimeType`` entries.
These scriptlets call ``update-desktop-database`` to add the MIME types
to the database of MIME types handled by desktop files.
Thanks to this class, when users open a file through a file browser
on recently created images, they don't have to choose the application
to open the file from the pool of all known applications, even the ones
that cannot open the selected file.
If you have recipes installing their ``.desktop`` files as absolute
symbolic links, the detection of such files cannot be done by the current
implementation of this class. In this case, you have to add the corresponding
package names to the :term:`MIME_XDG_PACKAGES` variable.
.. _ref-classes-mirrors:
``mirrors.bbclass``