Ubuntu telegram-desktop has insufficient appstream metadata

[Nate Graham]

I am using Kubuntu 17.10 with telegram-desktop 1.1.23-1. I've noticed that Ubuntu's packaging does not contain an AppStream metadata file:

$ dpkg-query -L telegram-desktop | grep appdata | wc -l
0

However, upstream sources do supply one:

https://github.com/telegramdesktop/tdesktop/blob/dev/lib/xdg/telegramdesktop.appdata.xml

Ubuntu's packaging should include this file. Because of the lack of this file, Telegram shows up twice in GNOME Software and KDE Discover if you enable the Flathub repo (presumably also the Snap backends): https://i.imgur.com/Q3jLxz6.png

The top entry comes from Flathub, and the bottom one comes from Kubuntu 17.10's package repo. If the package repo version included the AppStream metadata file, then GNOME Software and KDE Discover would see that both apps have the same AppStream ID and de-duplicate them correctly, presenting a single entry with an option for the source.

[Simon Quigley (tsimonq2)]

This is actually already shipped in the Bionic telegram-desktop.

[Nate Graham (pointedstick)]

Great!