#! /bin/sh

set -e

#This checks whether there is a newline at the end of the file and adds one if there was not.
#Needed because sed deletes the last line if it does not end with a newline 

perl -e 'use strict;' \
-e 'use warnings;' \
-e 'open(my $in,  "<",  "/usr/share/policy/etc/current/pulse/xpolicy.conf")  or die "Cannot open /usr/share/policy/etc/current/pulse/xpolicy.conf: $!";' \
-e 'my @lines = <$in>;' \
-e 'my $lastlineishere = $#lines;' \
-e 'my $lastline = $lines[$lastlineishere];' \
-e 'unless ($lastline =~ /\n$/){open(my $log, ">>", "/usr/share/policy/etc/current/pulse/xpolicy.conf") or die "Cannot open /usr/share/policy/etc/current/pulse/xpolicy.conf: $!"; print $log "\n"; }'
 
#This removes three subsequent lines from xpolicy.conf if they all match (the lines added by the postinstall script)

sed -i '
/'[stream]'/ {
#append a line
N
#search for KitchenAlert on the second line
/\nexe\t= KitchenAlert/ {
N
#searh next line
/\ngroup\t= alarm/ {

#s/'[stream]'.*alarm//
d
}}}' /usr/share/policy/etc/current/pulse/xpolicy.conf 

exit 0