#! /bin/sh

#   findpkg - Find files and packages in Debian
#   Copyright (c) 2000,3,5,6,9  Martin Schulze <joey@infodrom.org>
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA

# Updates: http://www.infodrom.org/Infodrom/tools/findpkg.html

# Default settings
#
server=ftp.debian.org
protocol=http
dist=stable
basedir=debian
wgetopts=
arch=$(dpkg --print-architecture)

function usage(){
  cat <<EOF
findpkg - Find files and packages in Debian

 Updates: http://www.infodrom.org/Infodrom/tools/findpkg.html
  
USAGE: findpkg [-u|--update] [-h|--help] [<keyword>]

  -u|--update  update local database using server repository database
  -h|--help    this help screen

EOF
}

# Overwrite the defaults with values from inside the config file
#
if [ -s /etc/dpkg/findpkg.conf ]
then
    . /etc/dpkg/findpkg.conf
fi

contents=/var/lib/dpkg/Contents-${arch}.gz

if [ $# -gt 0 ]
then
    case $1 in
    --help|-h)
	usage
	exit
	;;
    --update|-u)
	if ! touch $contents 2> /dev/null
	then
	    echo "Can't write to $contents"
	    exit 1
	fi
	tmp=`tempfile`
	trap "rm -f $tmp; exit" INT EXIT
	set -e
	wget ${wgetopts} -O $tmp ${protocol}://${server}/${basedir}/dists/${dist}/Contents-${arch}.gz
	set +e
	cp $tmp $contents
	chmod 644 $contents
	;;
    -*)
	echo "No such parameter \`$1'"
	;;
    *)
	if [ ! -f $contents ]
	then
	    echo "No $contents found, execute program with -u first"
	    exit 1
	fi
	zgrep "$@" ${contents}
	;;
    esac
else
    usage
fi