create a new vim server or interact with an existing one - http://a.pomf.se/sefqyu.webm

v

#!/usr/bin/env bash

usage() {
	cat <<'HELP'
v [OPTIONS] [FILES]
create a new vim server or interact with an existing one

    -h       show this help
    -d       disable focusing on vim
    -s       associate tmux pane in vim
    + 'str'  return expr
    : 'str'  send command
    ! 'str'  send raw keys
HELP
}

err() {
	if [[ -t 0 ]]; then
		echo >&2 "$*"
	else
		zenity --error --text="$*" 2> /dev/null
	fi
}

declare select=true
declare sendpane=false

while true; do
	case "$1" in
		'-h'|'--help') usage; exit 0 ;;
		'-d') select=false; ;;
		'-s') sendpane=true ;;
		-*) flags+=("$1")   ;;
		*) break ;;
	esac
	shift
done

serv=$(vim --serverlist | grep -P '^VIM_[0-9]+$')
if [[ -n "$serv" ]]; then
	{
		if [[ -n "$TMUX" && "$select" == true ]]; then
			pane=$(vim --servername "$serv" --remote-expr '$TMUX_PANE')
			if [[ -n "$pane" ]]; then
				#TODO: xdotool windowfocus $(vim --servername "$serv" --remote-expr '$WINDOWID')
				tmux select-pane   -t "$pane"
				tmux select-window -t "$pane"
			fi
		fi
	} &
	while true; do
		case "$1" in
			':')
				if [[ -z "$2" ]]; then
					err 'missing string for :'
					shift; break
				else
					vim "${flags[@]}" --servername "$serv" --remote-send "<esc>:$2<cr>"
					shift 2
				fi
				;;
			'!')
				if [[ -z "$2" ]]; then
					err 'missing string for !'
					shift; break
				else
					vim "${flags[@]}" --servername "$serv" --remote-send "$2"
					shift 2
				fi
				;;
			'+')
				if [[ -z "$2" ]]; then
					err 'missing string for +'
					shift; break
				else
					vim "${flags[@]}" --servername "$serv" --remote-expr "$2"
					shift 2
				fi
				;;
			* ) break ;;
		esac
	done
	if (( $# > 0 )); then
		vim "${flags[@]}" --servername "$serv" --remote-silent "$@"
	fi
elif [[ -t 0 ]]; then
	if [[ "$select" == true && -n "$TMUX" ]]; then
		tmux rename-window -t "$TMUX_PANE" 'vim'
		tmux=$(tmux list-sessions -F '#S' | grep 'cmd')
		if [[ -z "$tmux" ]]; then
			#TODO; user defineable alt conf file
			if [[ ! -e "$HOME/alt.tmux.conf" ]]; then
				echo 'creating alternate tmux conf'
				tee "$HOME/alt.tmux.conf" <<-'HEREDOC'
				set prefix C-s
				set status-position top
				set status-justify centre
				set status-right ''
				set status-left ''
				# vim:ft=tmux:
				HEREDOC
			fi
			tmux split-window -t "$TMUX_PANE" -d -v -p 25 'TMUX="" tmux new-session -s "cmd" \; source-file ~/alt.tmux.conf'
		fi
	fi
	serv="VIM_$(date +%s)"
	exec vim "${flags[@]}" --servername "$serv" "$@"
fi
if [[ "$sendpane" == true && -n "$TMUX_PANE" ]]; then
	#TODO; user defineable tmux plugin
	vim "${flags[@]}" --servername "$serv" --remote-send  "<esc>:TxSetPane $TMUX_PANE<cr>"
fi