gtk: Make the `-e` flag for `+new-window` work

[mitchellh]

Discussion: #8860

NOTE THAT ghostty -e foo WORKS FINE. This issue is tracking the -e flag specifically on the +new-window subcommand, which is a totally separate machine.

This should work. I think @jcollie put a lot of the groundwork in already.

[pandalec]

I had this configured for Arch Linux Updates Indicator (GNOME Extension), which doesn't work anymore.

ghostty -e "paru -Syu --noconfirm; echo Done - Press enter to exit; read"

Tried to switch to:

ghostty +new-window -e "paru -Syu --noconfirm; echo Done - Press enter to exit; read"

but without success. The error for both is:

Requested executable not found. Please verify the command is on the PATH and try again.

BR
pandale

[mitchellh]

@pandalec unrelated, open a new discussion

[Syphdias]

Note that ghostty +new-window -h already claims this works:

ghostty/src/cli/new_window.zig

Lines 66 to 70 in f97518c

	/// If the `-e` flag is included on the command line, any arguments that follow
	/// will be sent to the running Ghostty instance and used as the command to run
	/// in the new window rather than the default. If `-e` is not specified, Ghostty
	/// will use the default command (either specified with `command` in your config
	/// or your default shell as configured on your system).

[jcollie]

Note that ghostty +new-window -h already claims this works:

It claims that it works. It kinda does, in that the arguments are sent to the Ghostty instance, but nothing is done with them other than emit some debug logs.

[Syphdias]

As clearly stated by the commit :) 824185f

[guemidiborhane]

Are there any plans to implement it at some point?