Support repo's Appstream data download and install #1844
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Repositories can provide Appstream data for the packages they contain. This Appstream data is consumed by applications like gnome-software or KDE Discover, thus the users can see the packages (apps) in them.
This is to be in pair with PackageKit, which does download and install the repo's Appstream data.
As this adds a dependency on the
appstream
library, there is also a CMake option WITH_APPSTREAM to be able to turn the support off. The support is enabled by default.That is, the
/var/cache/libdnf5/$REPO_NAME/repodata/
directory can have downloaded also files withappstream
in their name and, when installed, the data is stored under/var/cache/swcatalog/xml/
.CC @m-blaha @jan-kolarik