Set default terminal to alacritty

[stevenhuyn]

Is useful when using the file explorer and right click contexts of open terminal here Also will update Ctrl + Alt + T behaviour.

I had to run sudo update-alternatives --config x-terminal-emulator to update the default terminal.

[Kasui92]

We already have hotkeys for alacritty, so I'm not sure overwriting the default here is necessary. And I've found that it's actually nice to have a way to use the system terminal in case there are any issues with alacritty.

From #129

[dhh]

I would actually reconsider #129 if we could make it work with the "Open in Terminal" from the Gnome finder. But the patch there doesn't do that. It only changes Ctrl + Alt + T.

[iajrz]

After a bit of digging, nautilus seems to have predetermined terminal emulators it's happy to call. I got to this apparent location of the list via this stack overflow answer which is now pointing at the wrong line in the file -- expected, as it's pointing at main, not at a specific commit.

In any case, the workaround detailed in the linked StackOverflow answer did not work for me, and neither did a few other alternatives I tried.

There might be something that can be done if something around this SO answer and this SO answer work.

[iajrz]

Further investigation yields that gnome-terminal registers the menu item itself leveraging the nautilus extension facilities provided for the purposes.

libnautilus-extension has an official python wrapper. The Ubuntu package name is python3-nautilus.

To fully substitute gnome-terminal in omakub, including the nautilus context menu:

• gnome-terminal itself needs to be uninstalled from the system (to remove the superfluous nautilus context menu item)
• either a context menu extension is built into alacritty or a custom extension is developed and installed alongside alacritty via omakub (maybe with nautilus-python, which I thought would be straightforward by installing with apt install, but after too much annoyance python3 does not seem to find the gi module, so I couldn't get even the examples to work; I mildly suspect it has to do with the way python is set up in omakub, but my time and energy ran out for now).
• sudo update-alternatives --set x-terminal-emulator /usr/bin/alacritty needs to run via omakub at installation time; --set because, unlike --config, it's not interactive.

This might be too much of a hassle for omakub.

A last thing: one of the nautilus-python examples appears to be exactly what is needed for this case.