There seems to be a bunch of code here that's supposed to offer up an application if you provide a URI/mime and there's a desktop file that reports it supports opening that.
mime_type is never set anywhere, so it's always null. In fact, I'm not sure we're even constructing a UriMatch class anywhere. So we have a bunch of code in DesktopFileService that parses all of the mimes that everything supports and caches it in RAM, then nothing that ever uses that information.
So, if we drop all that, we can save some RAM, CPU cycles and disk I/O.
There seems to be a bunch of code here that's supposed to offer up an application if you provide a URI/mime and there's a desktop file that reports it supports opening that.
However... there's a condition right at the top of the method here that says: https://github.com/elementary/applications-menu/blob/9ee21f7e9d51957456ee1de86ab971dc785c85c2/src/synapse-plugins/desktop-file-plugin.vala#L352
mime_typeis never set anywhere, so it's alwaysnull. In fact, I'm not sure we're even constructing aUriMatchclass anywhere. So we have a bunch of code inDesktopFileServicethat parses all of the mimes that everything supports and caches it in RAM, then nothing that ever uses that information.So, if we drop all that, we can save some RAM, CPU cycles and disk I/O.