Installing MIME type handlers

[Ray Strode]

Hi,

> The recent updates to eog and file-roller say that they now update the
> MIME types cache, but (from discussions) I think the change is made
> incorrectly.
> 
> Most, if not all, of our packages with .desktop files use
> desktop-file-install in the %install stage of the RPM, i.e. at package
> build time not package install time.  The new
> '--rebuild-mime-info-cache' option, however, needs to be supplied on
> the target system, i.e. at package install time.
That's a very good point that I don't think was considered. Basically, 
--rebuild-mime-info-cache was designed to be a convenience, so that
all desktop file stuff could be be done in one run.  All it does
is run update-desktop-database on the directory where the desktop
files are installed.

Like you point out, this isn't going to work though because
mime<->application associations need to be generated in %post to be
accurate and not shipped as part of the rpms.

> What is the correct way to package a file that contains a MIME
> handler?  Where should the .desktop file be shipped in the manifest,
> and what should the package %post scriptlet look like?
So, the best way to do this is to just keep your %install section like
it was originally (without the --rebuild-mime-info-cache option to
desktop-file-install) and then put something like

update-desktop-database %{_datadir}/applications

in %post

--Ray Strode