#!/usr/bin/env zsh
#
# Copyright (c) 2016 Dyne.org Foundation
# libdevuansdk is written and maintained by
#     Jaromil <jaromil@dyne.org>
#     KatolaZ <katolaz@freaknet.org>
#     parazyd <parazyd@dyne.org>
#
# This file is part of libdevuansdk
#
# This source code is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This software is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this source code. If not, see <http://www.gnu.org/licenses/>.

## Helper functions that make your life easier

escalate() {
	fn escalate $@
	local user="$1"
	local cmnd="$2"
	req=(user cmnd)
	ckreq || return 1

	if isfound sudo; then
		sudo -E -u ${user} ${=cmnd}
	else
		su -c "${=cmnd}" ${user}
	fi
}

mountdevproc() {
	fn mountdevproc $@
	strapdir="$1"
	req=(strapdir)
	ckreq || return 1

	escalate "root" "mount -t proc proc ${strapdir}/proc" && act "mounted /proc"
	escalate "root" "mount -o bind /dev ${strapdir}/dev"  && act "mounted /dev"
	escalate "root" "mount -o bind /dev/pts ${strapdir}/dev/pts" && act "mounted /dev/pts"
}

umountdevproc() {
	fn umountdevproc $@
	strapdir="$1"
	req=(strapdir)
	ckreq || return 1

	escalate "root" "umount ${strapdir}/dev/pts" && act "unmounted /dev/pts" && sleep 2
	escalate "root" "umount ${strapdir}/dev"  && act "unmounted /dev" && sleep 2
	escalate "root" "umount ${strapdir}/proc" && act "unmounted /proc" && sleep 2
}