#!/bin/sh
set -eu

usage() {
	cat <<-'EOF'
		Usage:
		  tmpname
		  tmpname -h
	EOF
}

help() {
	cat <<-'EOF'

		Options:
		  -h, --help    show this message


		Generate a temporary name.


		Examples:

		  Create a temporary file:

		    $ OUT="$(tmpname)"; touch "$OUT"; cmd > "$OUT"


		  `cd` into a temporary directory:

		    $ DIR="$(tmpname)"; mkdir -p "$DIR"; cd "$DIR"
	EOF
}


for flag in "$@"; do
	case "$flag" in
		--)
			break
			;;
		--help)
			usage
			help
			exit
			;;
		*)
			;;
	esac
done

while getopts 'h' flag; do
	case "$flag" in
		h)
			usage
			help
			exit
			;;
		*)
			usage >&2
			exit 2
			;;
	esac
done
shift $((OPTIND - 1))

echo "${TMPDIR:-/tmp}/uuid-tmpname with spaces.$(uuid)"