Add application() and application(filename) provides for desktop files.

Gnome software center needs to know what package to deinstall if it
needs to deinstall a desktop application. Looking up provides it much
cheaper than looking up which package owns a file.

We also add an empty application() provides to make it easy to
enumerate all packages containing desktop applications.

Signed-off-by: Panu Matilainen <pmatilai@redhat.com>

scripts/desktop-file.prov

@@ -11,6 +11,8 @@ while read instfile ; do
 	*.desktop)
 		if ! grep -q '^Type=Application$' "$instfile"; then continue; fi
 		if ! grep -q '^Exec=' "$instfile"; then continue; fi
+		echo "application()"
+		echo "application(${instfile##*/applications/})"
 		mime=`grep '^MimeType=' "$instfile" | cut -d'=' -f2`
 		IFS=';'
 		for type in $mime ; do