rpm.pl

namazu. 虽然是日语的,也适用于文件中单词索引后全文检索.

#
# -*- Perl -*-
# $Id: rpm.pl,v 1.4.4.1 2002/03/25 07:56:01 knok Exp $
# Copyright (C) 2000 Namazu Project All rights reserved ,
#     This is free software with ABSOLUTELY NO WARRANTY.
#
#  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 versions 2, 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
#
#  This file must be encoded in EUC-JP encoding
#

package rpm;
use strict;
require 'util.pl';
require 'gfilter.pl';

my $rpmpath = undef;

sub mediatype() {
    return ('application/x-rpm');
}

sub status() {
    $rpmpath = util::checkcmd('rpm');
    return 'no' unless (defined $rpmpath);
    return 'yes';
}

sub recursive() {
    return 0;
}

sub pre_codeconv() {
    return 0;
}

sub post_codeconv () {
    return 0;
}

sub add_magic ($) {
    my ($magic) = @_;

    $magic->addFileExts('\\.rpm$', 'application/x-rpm');
    return;
}

sub filter ($$$$$) {
    my ($orig_cfile, $cont, $weighted_str, $headings, $fields)
      = @_;
    my $cfile = defined $orig_cfile ? $$orig_cfile : '';

    my $tmpfile = util::tmpnam('NMZ.rpm');

    util::vprint("Processing rpm file ... (using  '$rpmpath')\n");

    #FIXME: needed more smart solutions.
    util::systemcmd("env LC_ALL=$util::LANG LANGUAGE=$util::LANG $rpmpath -qpi " . quotemeta($cfile) . " > $tmpfile");

    my $fh = util::efopen("$tmpfile");
    my $size = util::filesize($fh);
    if ($size > $conf::FILE_SIZE_MAX) {
	return 'too_large_rpm_file';
    }
    $$cont = util::readfile($fh);
    undef $fh;
    unlink($tmpfile);

    rpm_filter($cont, $weighted_str, $fields, $headings);

    gfilter::line_adjust_filter($cont);
    gfilter::line_adjust_filter($weighted_str);
    gfilter::white_space_adjust_filter($cont);
    gfilter::show_filter_debug_info($cont, $weighted_str,
			   $fields, $headings);

    return undef;
}

sub rpm_filter ($$$$) {
    my ($contref, $weighted_str, $fields, $headings) = @_;

    rpm::get_title($contref, $weighted_str, $fields);
    rpm::get_author($contref, $fields);
    rpm::get_date($contref, $fields);
    rpm::get_size($contref, $fields);
    rpm::get_summary($contref, $fields);

    return;
}


# Below is the sample result of 'rpm -qi rpm'.
#
# Name        : rpm                          Relocations: (not relocateable)
# Version     : 3.0.5                             Vendor: (none)
# Release     : 3k                            Build Date: Fri Jun 30 10:12:19 2000
# Install date: Thu Sep 14 21:32:32 2000      Build Host: omoi.kondara.org
# Group       : System Environment/Base       Source RPM: rpm-3.0.5-3k.nosrc.rpm
# Size        : 3111493                          License: GPL
# URL         : http://www.rpm.org/
# Summary     : The Red Hat package management system.
# Description :
# The RPM Package Manager (RPM) is a powerful command line driven
# package management system capable of installing, uninstalling,
# verifying, querying, and updating software packages.  Each software
# package consists of an archive of files along with information about
# the package like its version, a description, etc.


sub get_title ($$$) {
    my ($contref, $weighted_str, $fields) = @_;

    if ($$contref =~ /Summary     : (.*)/) {
	my $tmp = $1;
	$fields->{'title'} = $tmp;
	my $weight = $conf::Weight{'html'}->{'title'};
	$$weighted_str .= "\x7f$weight\x7f$tmp\x7f/$weight\x7f\n";
    }
}

sub get_author ($$) {
    my ($contref, $fields) = @_;

    if ($$contref =~ /Vendor: (.*)/) {
	my $tmp = $1;
	$fields->{'author'} = $tmp;
    }
}

sub get_date ($$) {
    my ($contref, $fields) = @_;

    if ($$contref =~ /Build Date: (.*)/) {
	my $tmp = $1;
	$fields->{'date'} = $tmp;
    }
}

sub get_size ($$) {
    my ($contref, $fields) = @_;

    if ($$contref =~ /Size\s+: (.*)$/) {
	my $tmp = $1;
	$fields->{'size'} = $tmp;
    }
}

sub get_summary ($$) {
    my ($contref, $fields) = @_;

    $$contref =~ s/^.*Description ://is;
    if ($$contref =~ /Description : (.*)/) {
	my $tmp = $1;
	$fields->{'summary'} = $tmp;
    }
}

1;