#!/bin/sh

# This script removes the prep flag for partitions whose method is not
# prep and sets it for partition whose method is prep.

. /lib/partman/lib/base.sh

dev=$1
num=$2
id=$3
size=$4
type=$5
fs=$6
path=$7

cd $dev

if [ $fs = free ]; then
	exit 0
fi

method=
if [ -f $id/method ]; then
	method=$(cat $id/method)
fi

has_prep=no
flags=''
open_dialog GET_FLAGS $id
while { read_line flag; [ "$flag" ]; }; do
	if [ "$flag" != prep ]; then
		flags="${flags:+$flags$NL}$flag"
	else
		has_prep=yes
	fi
done
close_dialog

if [ "$method" = prep ] && [ "$has_prep" = no ]; then
	open_dialog SET_FLAGS $id
	write_line "$flags"
	write_line prep
	write_line NO_MORE
	close_dialog
elif [ "$method" != prep ] && [ "$has_prep" = yes ]; then
	open_dialog SET_FLAGS $id
	write_line "$flags"
	write_line NO_MORE
	close_dialog
fi


# The following is a hack and will be removed in future versions of
# partman. It ensures that the prep partition can not be used for
# some regular file system.
if [ "$method" = prep ]; then
	# We want to use the existing file system in the partition
	rm -f $id/format
	# However no existing file system is detected
	rm -f $id/detected_filesystem
fi
