iterm

#!/bin/bash -e
#
# Opens iTerm tabs/windows conveniently, using "Open in iTerm.app".
# Run with `--help` for usage info.
#
# Copyright (c) 2018 Jason Jackson
#
# Distributed under the GNU General Public License, version 3 or later;
# see LICENSE or http://www.gnu.org/licenses/.
#

function usage() {
	script_name="$(basename "$0")"
	with_header="$1"

	if [[ $with_header == true ]]; then
		echo -e "${header_color}Opens iTerm tabs/windows conveniently, using Open in iTerm.app${normal}"
	fi

	echo -e "${bold}Usage:${normal} ${script_name} [options] [directory]\n"
	echo -e "${bold}Options${normal} may be given anywhere on the command line, except after ${bold}--${normal}:"
	echo "  -h, --help    Show this help and exit"
	echo "  -t, --tab     Open a new iTerm tab (not window)"
	echo "  -w, --window  Open a new iTerm window (not tab)"
	echo
	echo -e "If ${bold}directory${normal} is passed, it sets the iTerm tab/window's working directory;"
	echo "otherwise the current working directory will be used."
}

# output styles
if [[ -z $NO_COLOR ]]; then
	header_color='\033[0;1;36m'
	error_color='\033[0;1;31m'
	bold='\033[1m'
	normal='\033[0m'
else
	header_color=''
	error_color=''
	bold=''
	normal=''
fi

# parse arguments
unset end_opts directory
tab_or_window=()

for arg; do
	if [[ $end_opts == true || $arg != -* ]]; then
		if [[ -z $directory ]]; then
			directory="$arg"
		else
			echo -e "${error_color}Error: Multiple directories given${normal}"
			echo -e "${error_color}  1st: ${directory}\n  2nd: ${arg}${normal}\n"
			usage
			exit 1
		fi
	elif [[ $arg == "--" ]]; then
		end_opts=true
	elif [[ $arg == "-h" || $arg == "--help" ]]; then
		usage true
		exit 0
	elif [[ $arg == "-t" || $arg == "--tab" ]]; then
		tab_or_window=("$arg")
	elif [[ $arg == "-w" || $arg == "--window" ]]; then
		tab_or_window=("$arg")
	else
		echo -e "${error_color}Error: Invalid option: ${arg}${normal}"
		usage
		exit 1
	fi
done

if [[ -z $directory ]]; then
	# default to the current directory
	directory="$(pwd)"
else
	if [[ ! -d $directory ]]; then
		echo -e "${error_color}Error: No such directory: ${directory}${normal}"
		usage
		exit 2
	fi
fi

# make directory absolute
if [[ ${directory:0:1} != "/" ]]; then
	if cd -- "$directory" &> /dev/null; then
		directory="$(pwd)"
	else
		echo -e "${error_color}Error: Inaccessible directory: ${directory}${normal}"
		exit 2
	fi
fi

# do the things
open -nga "Open in iTerm" --args "${tab_or_window[@]}" -- "$directory"