Snapd desktop-interfaces and missing fonts

snapd
1

I’ve removed the fonts that the telegram-snap was providing and adding the desktop interface instead. Then the snap auto-refreshed in my two laptops.
In a first one all went ok, in my main machine instead there was something not going correctly:

  • snap interfaces telegram-desktop was showing the desktop interface as connecting
  • snap run --shell telegram-desktop -c 'ls /usr/share/fonts' was not showing fonts, and thus the app was not rendering properly chinese fonts.

Removing the snap and reinstalling it + refresh to edge (where this change is) made it working. Unfortunately I fixed the issue apparently, so I can’t debug it anymore…

But I’m wondering if someone else using that interface got this kind of problem.

3

If the snap is using wrappers, then those wrappers aren’t going to be run with ‘snap run --shell’. Eg, if you have:

apps:
  foo:
    command: bin/desktop-launch ...

then neither ‘/snap/…/current/command-foo.wrapper’ nor ‘/snap/…/current/bin/desktop-launch’ will be run, so you probably aren’t getting env setup or the ‘first run’ of the desktop-launch which copies various things. I suspect you could debug this by removing SNAP_USER_DATA/* (ie, the .last_revision) for this revision and trying again (since that would trigger the first run).