Add --term-args command line argument

[sbogomolov]

Some terminal emulators (like foot) do not support an argument -e. With --term-args it is possible to customize the arguments passed to the terminal emulator. If this option is not provided -e is used by default to maintain backwards compatibility.

In case of foot we would use it like this:

--term="foot" --term-args=""

[electrickite]

This feature would be extremely helpful. Having more flexibility in how the terminal emulator is invoked would allow a wider range of terminals and help work around various WM issues.

[craigbarnes]

Some terminal emulators (like foot) do not support an argument -e

FWIW, foot now ignores the -e flag.

[meator]

Thanks for the contribution!

I'm all in for adding more customization, but as craigbarnes has mentioned, foot now supports -e, which makes this PR unnecessary for foot users.

Pretty much all terminals I know of support -e.

[meator]

I have implemented a comprehensive system for --term execution. It should be included in the r3.1 release. See the manpage in develop for more info (see the TERM MODE section).

One of the main reasons I've implemented it is because the -e flag of gnome-terminal is now deprecated. The previous system would stop working for gnome-terminal once it removes the -e flag. The new --term-mode flag includes few presets for often used terminal emulators including gnome-terminal and kitty (kitty and foot use the same commandline arguments to execute things, so they are interchangeable). If you want to execute foot without -e, you can now do:

j4-dmenu-desktop --term-mode=kitty --term=foot

Many terminal emulators provide -e and -x which have similar function but different semantics. The new system acknowledges these changes.

This new system obsoletes the changes in this PR, so I'll close it.

I am still not 100% decided on whether this feature should be a part of j4-dmenu-desktop. I might still revert it