Tray icon to replace the 'updates' nwg-panel executor

[nwg-piotr]

All the info below concerns the not-yet-merged indicator nwg-shell-config branch.

As soon as it's merged, it'll provide a system tray indicator, that will take care of checking and installing updates. It means, that the Arch-specific 'updates' nwg-shell executor goes on retirement, and will no longer be shipped in preinstalled panel configs. @mac-a-r0ni (and possibly other packagers): you will no longer need to remove it from default panel configs.

The updater_indicator.py script is meant to work with various Linux distributions. It provides the nwg-update-indicator command. For now just Arch-related stuff is implemented.

What does it do?

1. Checks the Linux distribution;
2. Checks updates availability (on startup and then periodically);
3. Runs the nwg-system-update script, to install updates.

The form below allows users to use their own command instead of nwg-system-update. Those may be e.g. pamac-addicted Arch derivatives users. ;)

The provided nwg-system-update script is very simple in the Arch version, and uses baph to install updates:

#!/usr/bin/env bash
# Packagers: you need to replace this script with something, that will work for your distro.

baph -u &&
echo $1; read;
swaymsg reload

($1 carries localized "Press enter to exit...")

The updater_indicator.py code is quite well documented inside. To add support for your Linux distribution, please take a look at them. You may either contribute to the code, or just tell me what to do.

[mac-a-r0ni]

This is excellent news! Thank you for extending this functionality! I will work out updates and try and create a update script for Slackware within the next day or so, can't wait to try it out!

[nwg-piotr]

I'm glad you like the idea. This is especially for you, and possibly other distro packagers.

By the way: this is undocumented, but sending USR1 to nwg-update-indicator triggers check-updates. Maybe you'll find it useful in your scripts.