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#!/bin/bash
_SYSCONFDIR=${sysconfdir:-/etc}
_PREFIX=${prefix:-/usr}
_DATADIR=${datadir:-${_PREFIX}/share}
ADDIR=${ADDIR:-${install_prefix}${_SYSCONFDIR}/xscreensaver}
CONFDIR=${CONFDIR:-${install_prefix}${_DATADIR}/xscreensaver/hacks.conf.d}
ADFILE=${ADFILE:-$ADDIR/XScreenSaver.ad}
fix_hackconf ()
{
if [ ! -s $1 ] ; then
echo "$1 is empty" >&2
echo ""
return 1
fi
tmpconf=`mktemp /tmp/hackconf.XXXXXXXX`
tmpconf_1=`mktemp /tmp/hackconf.XXXXXXXX`
tmpconf_2=`mktemp /tmp/hackconf.XXXXXXXX`
tmpconf_3=`mktemp /tmp/hackconf.XXXXXXXX`
sed -n -e '$p' $1 > $tmpconf_1
sed -e '$d' $1 > $tmpconf_2
for file in $tmpconf_1 $tmpconf_2 ; do
if ( [ -s $file ] && grep -q '\\n\(\|\\\)[^\\].*$' $file ) ; then
rm -f $tmpconf $tmpconf_1 $tmpconf_2 $tmpconf_3
echo ""
echo "ignoring $1" >&2
return 1
fi
done
if ! grep -q '\\n[\\]*$' $tmpconf_1 ; then
sed -i -e 's|\(^.*$\)|\1 \\n\\|' $tmpconf_1
fi
sed -i -e 's|\\n$|\\n\\|' $tmpconf_1
while [ -s $tmpconf_2 ] ; do
sed -n -e '1p' $tmpconf_2 > $tmpconf_3
sed -i -e '1d' $tmpconf_2
if ! grep -q '\([ \t]\\$\|\\n\\$\)' $tmpconf_3 ; then
rm -f $tmpconf $tmpconf_1 $tmpconf_2 $tmpconf_3
echo ""
echo "ignoring $1" >&2
return 1
fi
cat $tmpconf_3 >> $tmpconf
done
cat $tmpconf_1 >> $tmpconf
rm -f $tmpconf_1 $tmpconf_2 $tmpconf_3
echo $tmpconf
return 0
}
for suffix in header tail ; do
if [ ! -r $ADDIR/XScreenSaver.ad.$suffix ] ; then
echo "$ADDIR/XScreenSaver.ad.$suffix missing"
exit 1
fi
done
tmpfile=`mktemp /tmp/XScreenSaver.ad.XXXXXXXX`
cat > $tmpfile <<EOF
! Don't edit this file directly by yourself!!
! This file is not meant to be edited directly.
!
! Instead, please edit /etc/xscreensaver/XScreenSaver.ad.header,
! /etc/xscreensaver/XScreenSaver.ad.tail and add files under
! /usr/share/xscreensaver/hacks.conf.d if you want.
!
! Then call /usr/sbin/update-xscreensaver-hacks to
! update this file.
!
EOF
cat $ADDIR/XScreenSaver.ad.header >> $tmpfile
for hackconf in $CONFDIR/*.conf ; do
hackconf_fixed=`fix_hackconf $hackconf`
if [ -n "$hackconf_fixed" ] ; then
cat $hackconf_fixed >> $tmpfile
rm -f $hackconf_fixed
fi
done
sed -i -e '$s|\\n\\$|\\n|' $tmpfile
cat $ADDIR/XScreenSaver.ad.tail >> $tmpfile
install -c -p -m 644 $tmpfile $ADFILE
rm -f $tmpfile