#! /bin/sh
#
# written by matthew green <mrg@eterna.com.au>, based on the
# original by J.T. Conklin <jtc@netbsd.org> and Thorsten
# Frueauf <frueauf@ira.uka.de>.
#
# Public domain.
#
# $OpenBSD: makewhatis.sh,v 1.8 1999/09/20 19:31:40 alex Exp $
#

PATH=/usr/bin:/bin; export PATH

# Create temp files safely
LIST=`mktemp ${TMPDIR=/tmp}/makewhatislist.XXXXXXXXXX` || exit 1
WHATIS=`mktemp ${TMPDIR=/tmp}/whatis.XXXXXXXXXX` || {
	rm -f $LIST
	exit 1
}
trap "rm -f $LIST $WHATIS; exit 1" 1 2 15

MANDIRS=${*-`perl -ne 'print "$1 " if ( /^_whatdb\s+(.*)\/whatis.db\s*$/ );' \
	/etc/man.conf`}

for MANDIR in $MANDIRS; do
	if test ! -d "$MANDIR"; then 
		echo "makewhatis: $MANDIR: not a directory"
		rm -f $LIST $WHATIS
		exit 1
	fi

	find $MANDIR \( -type f -o -type l \) -name '*.[0-9]*' -ls | \
		sort -n | awk '{if (u[$1]) next; u[$1]++ ; print $11}' > $LIST
	 
	egrep '\.[1-9]$' $LIST | xargs /usr/libexec/getNAME | \
		sed -e 's/ [a-zA-Z0-9]* \\-/ -/' > $WHATIS

	egrep '\.0$' $LIST | while read file
	do
		sed -n -f /usr/share/man/makewhatis.sed $file;
	done >> $WHATIS

	egrep '\.[0].(gz|Z)$' $LIST | while read file
	do
		gzip -fdc $file | sed -n -f /usr/share/man/makewhatis.sed;
	done >> $WHATIS

	sort -u -o $WHATIS $WHATIS

	if expr `id -u` \= 0 >/dev/null; then
		install -o root -g bin -m 444 $WHATIS "$MANDIR/whatis.db"
	else
		install -m 444 $WHATIS "$MANDIR/whatis.db"
	fi
done

rm -f $LIST $WHATIS
exit 0