The rationale is explained in https://planet.kde.org/friedrich-kossebau-2023-06-28-include-also-moc-files-of-headers/
In case of KDEConnect, it impressively speeds up compilation. Before it
took 390 seconds on a clean build and with this change it took 330 seconds.
This is due to the mocs_compilation having to include the header files
and thus all their headers. Due to the lots of small plugins we have,
this means that the same headers must be compiled plenty of times.
When we include the moc files directly in the C++ file, they are already
available.
* Moves the XML definitions of DBus interfaces and code generation from the different plugins
to kdeconnectinterfaces. Before each plugin had their own, some of them duplicated.
* Appends `// clazy:skip` to the generated interface files, so Clazy doesn't emit warnings
about them because they are missing the NOTIFY/CONSTANT keywords on Q_PROPERTIES.
* Makes kdeconnectinterfaces static on Qt5 as well (removes a difference with Qt6).
* Moves the generated files to a `generated` directory and updates the includes so they are
easily distinguished from other header files.
This is not needed, because only a symbol to create the KPluginFactory
instance must be exported. The KPluginFactory macros or rather the underlying
Q_PLUGIN_METADATA macro already take care of that.
In other plugin code of KDE, we also do not export classes.
The size of the generated plugin files is nearly identical, but removing
the macros avoids confusion for developers.
By removing the postfix we consistently use, we get exactly the same string as before
However, all our pluginId logic is now done as part of the buildsystem.
Before, they were in the JSON metadata, the buildsystem and the string constructor parameter
KPluginFactory has the KPluginMetaData object in any case, do using it
doesn't create any overhead.
This way we catch missing methods/mismatching arguments at compile and
not at runtime.
This fixes some Qt6 regressions due to the removal of deprecated methods.
We do not need those methods to be marked as slots and the KCMUtils
classes like KPluginWidget also don't need it.
Meaning it just results in more moc code being generated.
This makes it easier to read, because we do not have to handle a list of
files that get added to the targets. In other KDE projects, we also
prefer the target centric approach.
In case one wants to reuse the same category in multiple places, it
would be best to create a small static lib. But for now, this is not
needed.
The one derived from the filename is identical. Deriving it from the filename is the preferred approach.
In KF6, log messages are printed out if the Id is needlessly specified.
A mismatching Id vs basename would print out a warning.
