single vim session

v.sh

#!/usr/bin/env bash

select_cmd_in_tmux() {
	list_cmds_in_panes=$(IFS=$'\n'; set -f; for p in $(tmux list-windows); do
		tmux list-panes -t "${p%%:*}" -F "#{window_index}.#{pane_index} #{pane_current_command}"
	done)
	pane_with_cmd=$(awk "/$1/{print \$1; exit}" <<< "$list_cmds_in_panes")
	if [[ -n "$pane_with_cmd" ]]; then
		pane=${pane_with_cmd#.*}
		window=${pane_with_cmd%%.*}
		tmux select-window -t "$window"
		tmux select-pane -t "$pane"
	fi
}

while [[ $1 = -* ]]; do
	flags+=("$1")
	shift
done

serv=$(command vim --serverlist)
if [[ "$serv" != '' ]]; then
	command vim "${flags[@]}" --servername "$serv" --remote-silent "$@"
	select_cmd_in_tmux vim
else
	if [[ -t 0 || -p /dev/stdin ]]; then
		command "${flags[@]}" vim --servername VIM "$@"
	else
		if ! pgrep tmux &>/dev/null; then
			x-terminal-emulator -e 'vim' "${flags[@]}" '--servername' 'VIM' "$@"
		else
			tmux new-window "vim ${flags[@]} --servername VIM $@"
		fi
	fi
fi