tmux-many

#!/bin/bash


set -o errexit -o noclobber -o nounset -o pipefail

params="$(getopt -o wil: -l wait,layout:,titles: --name "$0" -- "$@")"
eval set -- "$params"
unset params

#layout="main-horizontal"
layout=""
read_stdin="false"
wait="false"
titles=""

while true
do
    case "$1" in
        -w|--wait)
            wait="true"
            shift
            ;;
        -i)
            read_stdin="true"
            shift 2
            ;;
		-l|--layout)
			layout="$2"
            shift 2
			;;
		--titles)
			titles="$2"
			shift 2
			;;
        --)
            shift
            break
            ;;
        *)
            echo "Not implemented: $1" >&2
            exit 1
            ;;
    esac
done

declare -a params

IFS=',' read -r -a titles <<< "$titles"

#params+=(set-option -g remain-on-exit on ';')

#params+=(set pane-border-status bottom ';' set pane-border-format "#{pane_title}" ';')

paneCount=0

function add_pane() {
	local command="$1"
	local action

	if (( paneCount == 0 )); then
		if [[ -z "${TMUX:-}" ]]; then
			action="new-session"
		else
			action=""
			exec="$command"
		fi
	else
		action="split-window"
	fi

	(( ++paneCount ))

	if [[ -n "$action" ]]; then
		params+=($action "$command" ';')
	fi

	if ! [[ -z "${titles[$paneCount]-}" ]]; then
		params+=(select-pane -T "${titles[$paneCount]}" ';')
	fi

}

if [[ "$read_stdin" == "true" ]]; then
	while ifs= read -r line; do
		add_pane "$line"
	done
else
	# Run each parameter in separate window
	while ! [[ -z "${1-}" ]]; do
		add_pane "$1"
		shift
	done
fi

if [[ -n "$layout" ]]; then
	params+=( select-layout $layout ';' )
fi

if [[ "$wait" == "true" ]]; then
	params+=(set remain-on-exit on ';')
fi

tmux "${params[@]}"

if [[ -n "$exec" ]]; then
	exec ${exec}
fi