#
# ex: filetype=sh
#
# common.subr
#
# part of pfSense (https://www.pfsense.org)
# Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
# All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# Obtained from poudriere common.sh
eargs() {
	local fname="$1"
	shift
	case $# in
		0) err "${fname}: No arguments expected" ;;
		1) err "${fname}: 1 argument expected: $1" ;;
		*) err "${fname}: $# arguments expected: $*" ;;
	esac
}

err() {
	[ $# -eq 1 ] || eargs err msg
	local msg="$1"

	echo >&2 "====>> ERROR: $msg"
	exit 1
}

run() {
	[ $# -eq 2 ] || eargs run msg cmd
	local msg="$1"
	local cmd="$2"

	echo "====>> ${msg}"
	${cmd} 2>&1
	rc=$?
	[ $rc -ne 0 ] \
		&& err "Execution of '${cmd}' failed (rc = ${rc})"
}

force_rm() {
	[ $# -eq 1 ] || eargs force_rm directory
	local directory="$1"

	[ "${directory}" = "/" ] \
		&& err "Removing / is not a good idea"

	run "Removing immutable flags from ${directory}" \
		"chflags -R noschg ${directory}"

	run "Removing recursively ${directory}" \
		"rm -rf ${directory}"
}