It appears a lot of Debian code still relies on this missing value.
Some have switched to this technique:
os.getenv("XDG_CURRENT_DESKTOP", "").endswith("GNOME")
... however for reasons mentioned earlier, this will fail on XFCE, Pantheon
and many others as they set this value, so the C-code which sets it in
Gnome3 kindly leaves it alone.
Ubuntu it kind enough to append "ubuntu:GNOME", so the above line works,
but this doesn't seem to be a universally adopted standard.
It seems it would be of great service to expose something. I'm not sure I
agree that an environment variable is a bad way to do this, it's a variable
which describes the environment. It seems just about perfect. ;)
- tres.finocchi...@gmail.com
On Wed, Apr 29, 2020 at 3:27 PM Tres Finocchiaro <tres.finocchi...@gmail.com>
wrote:
> For reference, the commit which introduced this change:
>
> https://gitlab.gnome.org/GNOME/gnome-session/commit/00e0e6226371d53f651cc881e74c0543192c94a8#5b3005b925ed5c2612a9604ad3c756b1f9472165
>
> Note, at the time of committing that, Debian still had 225 instances of
> the OS relying on this for detection of a Gtk-desktop (such as the mail
> launcher to prefer Evolution to KMail, etc).
>
> I'll browse the Debian code to see how they've worked around this issue
> since.
>
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