Option to have wezterm only flatten if in the same pane

[Irubataru]

Would it be possible to have instances in wezterm only flatten if the neovim instance is in the same pane?

I really like the flatten feature for when I am using splits, but when I am using tabs it's quite confusing. It took me a while to realise that it was the flatten feature that made my neovim instances instantly close becasue I had one open in a different tab 😅 I could of course disable wezterm flattening, but it would be neat to have it for just splits, when the neovim instance is visible, and it is obvious what is happening.

[willothy]

Definitely should be doable by customizing the callbacks. I'll look into this soon!

[willothy]

I have actually implemented this in my own config, not sure why I never updated here - did you implement it as well or are you still interested in my solution?

I have it for wezterm tabs since I don't really use panes, but the code should work the same if you replace the wezterm.nvim tab function calls with pane function calls.

[Irubataru]

I never implemented it, and ended up disabling wezterm intergation. If you have a working solution I'd love to see if I can get it working with panes ^^

[oleksandrskorbatiuk]

I wanted similar behavior, so I ended up implementing it with a custom hook like this:

hooks = {
	should_nest = function(host)
		local function get_cwd()
			return vim.fn.getcwd(-1)
		end
		local client_cwd = get_cwd()
		local ok, host_cwd = pcall(require("flatten.rpc").exec_on_host, host, get_cwd, {}, true)

		if not ok then
			return true
		end

		local sameish_dir = vim.startswith(client_cwd, host_cwd)
		if not sameish_dir then
			return true
		end

		local function get_pane()
			return tonumber(os.getenv("WEZTERM_PANE"))
		end

		local client_pane = get_pane()
		local ok, host_pane = pcall(require("flatten.rpc").exec_on_host, host, get_pane, {}, true)

		if not ok then
			return true
		end
 		
		-- willothy/wezterm.nvim
		local all_panes = require("wezterm").list_panes()
		if all_panes == nil then
			return true
		end

		---@type string|number, string|number
		local host_window, client_window = "sentinel_host", "sentinel_client"

		for _, value in ipairs(all_panes) do
			if value.pane_id == client_pane then
				client_window = value.window_id
			end
			if value.pane_id == host_pane then
				host_window = value.window_id
			end
		end

		if host_window ~= client_window then
			return true
		end

		return false
	end,
}