Package: gnome-session-common Version: 49.0-1 Severity: serious Tags: experimental
After upgrading gnome-session (and gnome-shell and gdm) to 49.x, my system's default web browser changes from Firefox ESR to GNOME Web (Epiphany). This seems like something we should resolve before re-uploading gnome-session-common to unstable, at least for Firefox. Upstream, gnome-mimeapps.list is generated as a side effect of the "GNOME OS" images, using the MIME types for which they advertise support - which we can't do in Debian, because having Build-Depends on every GNOME app would be fragile, but we can certainly regenerate the file periodically and commit the result. I don't think there is a DFSG problem here - the file is in a form that is entirely reasonable to edit, even if not really intended to be edited. A simplistic way to do this would be to patch data/gnome-mimeapps.list, ignoring the comment about how it isn't intended to be edited directly; or we could stop installing upstream's data/gnome-mimeapps.list and bring back our Debian-specific version. A way that might scale better would be to use <https://gitlab.gnome.org/heftig/gnome-mimeapps/> or maybe <https://gitlab.gnome.org/GNOME/gnome-build-meta/-/tree/master/files/gnome-mimeapps>, either of which would have to be run in a container that has all the relevant apps installed (or at least their .desktop files). Or, since the only thing that https://gitlab.gnome.org/heftig/gnome-mimeapps/ reads from the .desktop files seems to be their MimeType list, perhaps we could adapt that program to read that information from AppStream metadata? For example /var/lib/app-info/yaml/deb.debian.org_debian_dists_forky_main_dep11_Components-amd64.yml.gz has entries like: --- Type: desktop-application ID: firefox-esr.desktop ... Launchable: desktop-id: - firefox-esr.desktop Provides: mediatypes: - text/html ... and --- Type: desktop-application ID: org.gnome.Showtime ... Launchable: desktop-id: - org.gnome.Showtime.desktop ... Provides: mediatypes: - video/3gp - video/3gpp ... which looks like all the information we need? smcv
