#! /bin/sh

set -e

GROUP="mlocate"

if [ "$1" = "configure" ]; then
    update-alternatives --install /usr/bin/locate locate /usr/bin/mlocate 80 \
	--slave /usr/share/man/man1/locate.1.gz locate.1.gz /usr/share/man/man1/mlocate.1.gz \
	--slave /usr/bin/updatedb updatedb /usr/bin/updatedb.mlocate \
	--slave /usr/share/man/man8/updatedb.8.gz updatedb.8.gz /usr/share/man/man8/updatedb.mlocate.8.gz

    if ! getent group "$GROUP" > /dev/null 2>&1 ; then
    	addgroup --system "$GROUP"
    fi

    if ! dpkg-statoverride --list /usr/bin/mlocate >/dev/null 2>&1; then
    	dpkg-statoverride --update --add root "$GROUP" 2755 /usr/bin/mlocate 
    fi
fi

# Obsolete file, this can be dropped post-jessie.
rm -f /var/lib/mlocate/daily.lock

if [ -z "$2" ]; then
	echo -n "Initializing mlocate database; this may take some time... "
	NOCACHE=
	if [ -x /usr/bin/nocache ]; then
		NOCACHE="/usr/bin/nocache"
	fi
	flock --nonblock /run/mlocate.daily.lock $NOCACHE \
		/usr/bin/updatedb.mlocate || true
	echo "done"
fi