Comments on: No application for this file type…

By: tosky

tosky — Sat, 03 May 2008 13:27:27 +0000

Please, take a look at this (proposed) freedesktop specification:
http://www.freedesktop.org/wiki/Specifications/mime-actions-spec
If I remember correctly, KDE implements it.

By: James Westby

James Westby — Fri, 02 May 2008 17:35:48 +0000

Ted,

You could put it in and then use libpackagekit to install uniconverter from inkscape
if asked to open a CDR file.

James

By: Ted Gould

Ted Gould — Fri, 02 May 2008 16:18:04 +0000

Inkscape does support CDR, but doesn’t update it’s mime types so that it gets listed. According to the desktop file we’re SVG only, and that kinda comes from the fact that other things need to be installed to make it work. So if you have Uniconverter and Inkscape, then you can view CDR files. I realize that’s complex, but I’m not sure how you’ll be able to represent that in the provides section of an RPM or DEB.

By: Dan Nicholson

Dan Nicholson — Fri, 02 May 2008 16:05:44 +0000

Hey Richard, I think this script would do the trick:

for f in `find /usr/share/applications -name ‘*.desktop’`; do
sed -n ’s/^ *MimeType=$.*$/\1/p’ $f | \
awk -F’;’ ‘{for(i=1;i<=NF;i++) if ($i) printf “mime(%s)\n”, $i}’
done

Adjusting the find to operate on $RPM_BUILD_ROOT and supplying the rpm macro magic as needed. Probably you could drop the sed and get it all in awk, but I’m not that talented. If you want any more help with this, I’m pretty keen to rpm and how it handles reqprov.

By: James Westby

James Westby — Fri, 02 May 2008 13:36:27 +0000

Hi Richard,

apt doesn’t have this capability, but Ubuntu ships the information in a separate
package for the gnome-app-install tool. I’m not sure if mime types are there, but
they certainly could be.

The information could obviously be made available through apt as well.

Thanks,

James

By: hughsie

hughsie — Fri, 02 May 2008 13:28:46 +0000

Yes, I agree. Trying to maintain an out-of-band data source is not going to work. I’m working on adding a script to rpm to automatically pull out the mimetypes and add them as rpm-provides. This means we can just use yum and rpm for the yum backend. I think apt has a desktop file cache for this as well.

Unfortunatly, this means that we have to wait for F10 until this feature can be used in Fedora, as it needs all the applications to be rebuilt with the new provides

By: Victor Bogado

Victor Bogado — Fri, 02 May 2008 13:14:24 +0000

I would say that this information would have to be integrated with yum. That way it could be updated when new packages could handle different file types and also it would re-use the cache system that already exists.

By: hughsie

hughsie — Fri, 02 May 2008 13:08:38 +0000

Well, a proper dialog saying:

Do you want to search for applications?
[yes] [no]

(as this takes a few seconds to complete)

and then a list of applications that can be chosen and installed – we can make this very pretty – icons and localisations and that sort of thing.

Richard.

By: James Westby

James Westby — Fri, 02 May 2008 11:28:46 +0000

Hi Richard,

Is the intention here to have it display a list of applications, and make
it easy to install them from this dialog, or to just provide a button to pop
up a further dialog in which to search/install applications?

Thanks,

James

By: Chris Sherlock

Chris Sherlock — Fri, 02 May 2008 10:00:38 +0000

It might be obvious, but is it relying on the extension name? Or will it try to detect the actual type of file?