Fix WSL ERROR UtilConnectToInteropServer in tmux

fix_wsl_interop_tmux.bash

#!/usr/bin/env bash
# Fix WSL interop problem when attached to tmux
# fix ERROR: UtilConnectToInteropServer:300: connect failed 2:
#
# Modified from
# https://superuser.com/questions/1602401/vscode-terminal-behaves-strangely-when-opening-a-project-that-is-inside-wsl2

# Fix by search lowest ancestor of tmux: client that is init
# Then sets wsl interop id as pid of that init

fix_wsl_interop_tmux() {
	ancestors_of_tmux_client() {
		pstree --show-pids | fgrep 'tmux: client'; }
	get_pid_of_lowest_ancestor_init() {
		select_numbers() {
			grep -oP '\d+'; }
		select_line_-3(){
			tail -n3 | head -n1; }
		select_numbers | select_line_-3
	}
	REAL_WSL_INTEROP_ID=$(ancestors_of_tmux_client | get_pid_of_lowest_ancestor_init)
	sudo ln -s /run/WSL/${REAL_WSL_INTEROP_ID}_interop $WSL_INTEROP
}
fix_wsl_interop_tmux