Re: Bug#94752: dh_installxfonts deletes fonts.alias and therefore breaks X
To me, that would be just a matter of update-fonts-{scale,alias,dir} - that
programs should just read the contents of /etc/X11/fonts/... and create/remove
any files in /usr/lib/X11/fonts... in so everything is set up correctly.
dh_installxfonts would not need to do anything except place the files correctly
and add a plain call to the corresponding update-fonts-... programm to the
postinst/remove scripts.
On Tue, May 08, 2001 at 09:34:51PM -0400, Joey Hess wrote:
> Branden Robinson wrote:
> > On Fri, Apr 27, 2001 at 11:49:25AM -0400, Joey Hess wrote:
> > > Well, that's bad. Ok, what in the hell are these
> > > /etc/X11/fonts/*/*.alias files, and why have I never heard of them
> > > before, and how is their presense/absense affecting debhelper's
> > > behavior anyway?
> >
> > They're in the Debian Policy Manual, and have been for several months.
>
> Fine, someone else wrote the debhelper x fonts support, so I didn't pay
> much attention.
>
> I've been looking into this bug report, and trying to figure out what is
> the correct way to handle removing a font package. It seems tricky:
>
> /usr/lib/X11/fonts/foo/fonts.{alias,scale} are automatically generated
> in the postinst. If there are multiple packages with fonts in foo/, then
> when one is removed, its postrm needs to run the same update-fonts-*
> commands that it ran in its postinst, to clean up after itself.
>
> But what if it is the last package to provide fonts in foo/? Or worse,
> what if there are other packages still installed that provide fonts
> there, but it is the last to provide scalable fonts, or alias files?
> Then it seems that its postrm must handle removing the appropriare
> foo/fonts.{alias,scale} files, which it can only do after analyzing what
> other packages provide such files in /etc/, and determining if this package
> is the last one.
>
> And that seems awefully complex for a postinst. Do update-fonts-* handle any
> of this, by any chance?
>
> An alternative would be for a font package, when removed, to
> unconditionally remove foo/fonts.{alias,scale}, and then blindly call
> update-fonts-alias and update-fonts-scale. This would require that if
> there are no files in /etc/ for a given font directory, those commands
> don't write out a fonts.foo file for it, but just exit w/o an error.
>
> --
> see shy jo
>
>
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