Shell gothcas

gotcha.sh

#!/bin/bash

set -eu

foo() {
	false
	echo Expected to not reach here
}

fooer=foo

bar() {
	(set -ex && $fooer)
}

test_bad() {
	if bar; then
		echo OK
	else
		echo NOTOK
	fi
}

test_good() {
	set +e
	bar
	# shellcheck disable=2181
	if [[ $? -eq 0 ]]; then
		echo OK
	else
		echo NOTOK
	fi
	set -e
}

test_cleanup() {
	ensure_cleanup() {
		declare -ag cleanup=("$@") # OR -rag for readonly

		cleanup() {
			set -- "${cleanup[@]}"

			# CLEANUP CODE HERE
			for arg; do
				echo "-> $arg"
			done
			# echo $1
			# err=3
			echo cleaning up
			ls sdfdsfsddf  &>/dev/null
			# exit 129
		}

		# shellcheck disable=2154
		trap 'readonly err=$? && cleanup || exit $err' EXIT HUP INT QUIT TERM
	}

	ensure_cleanup 'fooooooooooooo' 'baaaaaaaaaaaa'
	# trap 'readonly err=$? && cleanup || exit $err' EXIT HUP INT QUIT TERM
	# trap 'cleanup' EXIT HUP INT QUIT TERM

	exit 123
	echo OK
}


test_cleanup