#!/bin/sh
#
# Copyright (c) 2019 David Demelier <markand@malikania.fr>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#

if [ "$1" = "install" ]; then
	if ! grep -q "/bin/dash" $DESTDIR/etc/shells >/dev/null 2>&1; then
		echo "/bin/dash" >> $DESTDIR/etc/shells
	fi

	#
	# dash is the official default shell in Vanilla, but if the user has set
	# something else, keep it.
	#
	if [ ! -e $DESTDIR/bin/sh ]; then
		ln -sf dash $DESTDIR/bin/sh
	fi
elif [ "$1" = "uninstall" ]; then
	sed -i -e '/\/\/bin\/dash/d' $DESTDIR/etc/shells

	# Remove deadlink to /bin/sh if dash was kept as default shell.
	if [ $(readlink $DESTDIR/bin/sh) = "dash" ]; then
		rm -f $DESTDIR/bin/sh
	fi
fi