#
# Packages::Search
#
-# Copyright (C) 2004-2006 Frank Lichtenheld <frank@lichtenheld.de>
-#
+# Copyright (C) 2004-2007 Frank Lichtenheld <frank@lichtenheld.de>
+#
# The code is based on the old search_packages.pl script that
# was:
#
#
# 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
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
=head1 NAME
use strict;
use warnings;
-#use CGI ();
use POSIX;
use HTML::Entities;
use DB_File;
+use Lingua::Stem v0.82;
+use Search::Xapian qw(:ops);
use Deb::Versions;
use Packages::CGI;
our @EXPORT_OK = qw( read_entry read_entry_all read_entry_simple
read_src_entry read_src_entry_all find_binaries
- do_names_search do_fulltext_search
+ do_names_search do_fulltext_search do_xapian_search
+ find_similar
);
our %EXPORT_TAGS = ( all => [ @EXPORT_OK ] );
our $VERSION = 0.01;
-our $USE_PAGED_MODE = 1;
-use constant DEFAULT_PAGE => 1;
-use constant DEFAULT_RES_PER_PAGE => 50;
-our %page_params = ( page => { default => DEFAULT_PAGE,
- match => '(\d+)' },
- number => { default => DEFAULT_RES_PER_PAGE,
- match => '(\d+)' } );
-
our $too_many_hits = 0;
-sub parse_params {
- my ( $cgi, $params_def, $opts ) = @_;
-
- my %params_ret = ( values => {}, errors => {} );
- my %params;
- if ($USE_PAGED_MODE) {
- debug( "Use PAGED_MODE", 2 ) if DEBUG;
- %params = %$params_def;
- foreach (keys %page_params) {
- delete $params{$_};
- }
- %params = ( %params, %page_params );
- } else {
- %params = %$params_def;
- }
-
- foreach my $param ( keys %params ) {
-
- debug( "Param <strong>$param</strong>", 2 ) if DEBUG;
-
- my $p_value_orig = $cgi->param($param);
-
- if (!defined($p_value_orig)
- && defined $params_def->{$param}{alias}
- && defined $cgi->param($params_def->{$param}{alias})) {
- $p_value_orig = $cgi->param($params_def->{$param}{alias});
- debug( "Used alias <strong>$params_def->{$param}{alias}</strong>",
- 2 );
- }
-
- my @p_value = ($p_value_orig);
-
- debug( "Value (Orig) ".($p_value_orig||""), 2 ) if DEBUG;
-
- if ($params_def->{$param}{array} && defined $p_value_orig) {
- @p_value = split /$params_def->{$param}{array}/, $p_value_orig;
- debug( "Value (Array Split) ". join('##',@p_value), 2 ) if DEBUG;
- }
-
- if ($params_def->{$param}{match} && defined $p_value_orig) {
- @p_value = map
- { $_ =~ m/$params_def->{$param}{match}/; $_ = $1 }
- @p_value;
- }
- @p_value = grep { defined $_ } @p_value;
-
- debug( "Value (Match) ". join('##',@p_value), 2 ) if DEBUG;
-
- unless (@p_value) {
- if (defined $params{$param}{default}) {
- @p_value = ($params{$param}{default});
- } else {
- @p_value = undef;
- $params_ret{errors}{$param} = "undef";
- next;
- }
- }
-
- debug( "Value (Default) ". join('##',@p_value), 2 ) if DEBUG;
- my @p_value_no_replace = @p_value;
-
- if ($params{$param}{replace} && @p_value) {
- foreach my $pattern (keys %{$params{$param}{replace}}) {
- my @p_value_tmp = @p_value;
- @p_value = ();
- foreach (@p_value_tmp) {
- if ($_ eq $pattern) {
- my $replacement = $params{$param}{replace}{$_};
- if (ref $replacement) {
- push @p_value, @$replacement;
- } else {
- push @p_value, $replacement;
- }
- } else {
- push @p_value, $_;
- }
- }
- }
- }
-
- debug( "Value (Final) ". join('##',@p_value), 2 ) if DEBUG;
-
- if ($params_def->{$param}{array}) {
- $params_ret{values}{$param} = {
- orig => $p_value_orig,
- no_replace => \@p_value_no_replace,
- final => \@p_value,
- };
- @{$params_def->{$param}{var}} = @p_value
- if $params_def->{$param}{var};
- } else {
- $params_ret{values}{$param} = {
- orig => $p_value_orig,
- no_replace => $p_value_no_replace[0],
- final => $p_value[0],
- };
- ${$params_def->{$param}{var}} = $p_value[0]
- if $params_def->{$param}{var};
- }
- $opts->{$param} = $params_ret{values}{$param}{final} if $opts;
- }
-
- if ($USE_PAGED_MODE) {
- $cgi->delete( "page" );
- $cgi->delete( "number" );
- }
-
- return %params_ret;
-}
-
-sub start {
- my $params = shift;
-
- my $page = $params->{values}{page}{final}
- || DEFAULT_PAGE;
- my $res_per_page = $params->{values}{number}{final}
- || DEFAULT_RES_PER_PAGE;
-
- return 1 if $res_per_page =~ /^all$/i;
- return $res_per_page * ($page - 1) + 1;
-}
-
-sub end {
- my $params = shift;
-
- use Data::Dumper;
- debug( "end: ".Dumper($params) ) if DEBUG;
- my $page = $params->{page}
- || DEFAULT_PAGE;
- my $res_per_page = $params->{number}
- || DEFAULT_RES_PER_PAGE;
-
- return $page * $res_per_page;
-}
-
-sub indexline {
- my ($cgi, $params, $num_res) = @_;
-
- my $index_line = "";
- my $page = $params->{page}
- || DEFAULT_PAGE;
- my $res_per_page = $params->{number}
- || DEFAULT_RES_PER_PAGE;
- my $numpages = ceil($num_res /
- $res_per_page);
- for (my $i = 1; $i <= $numpages; $i++) {
- if ($i == $page) {
- $index_line .= $i;
- } else {
- $index_line .= "<a href=\"".encode_entities($cgi->self_url).
- "&page=$i&number=$res_per_page\">".
- "$i</a>";
- }
- if ($i < $numpages) {
- $index_line .= " | ";
- }
- }
- return $index_line;
-}
-
-sub nextlink {
- my ($cgi, $params, $no_results ) = @_;
-
- my $page = $params->{page}
- || DEFAULT_PAGE;
- $page++;
- my $res_per_page = $params->{number}
- || DEFAULT_RES_PER_PAGE;
-
- if ((($page-1)*$res_per_page + 1) > $no_results) {
- return ">>";
- }
-
- return "<a href=\"".encode_entities($cgi->self_url).
- "&page=$page&number=$res_per_page\">>></a>";
-}
-
-sub prevlink {
- my ($cgi, $params ) = @_;
-
- my $page = $params->{page}
- || DEFAULT_PAGE;
- $page--;
- if (!$page) {
- return "<<";
- }
-
- my $res_per_page = $params->{number}
- || DEFAULT_RES_PER_PAGE;
-
- return "<a href=\"".encode_entities($cgi->self_url).
- "&page=$page&number=$res_per_page\"><<</a>";
-}
-
-sub resperpagelink {
- my ($cgi, $params, $res_per_page ) = @_;
-
- my $page;
- if ($res_per_page =~ /^all$/i) {
- $page = 1;
- } else {
- $page = ceil(start( $params ) / $res_per_page);
- }
-
- return "<a href=\"".encode_entities($cgi->self_url).
- "&page=$page&number=$res_per_page\">$res_per_page</a>";
-}
-
-sub printindexline {
- my ( $input, $no_results, $opts ) = @_;
-
- my $index_line;
- if ($no_results > $opts->{number}) {
-
- $index_line = prevlink( $input, $opts)." | ".
- indexline( $input, $opts, $no_results)." | ".
- nextlink( $input, $opts, $no_results);
-
- print "<p style=\"text-align:center\">$index_line</p>";
- }
-}
-
-#sub multipageheader {
-# my ( $input, $no_results, $opts ) = @_;
-#
-# my ($start, $end);
-# if ($opts->{number} =~ /^all$/i) {
-# $start = 1;
-# $end = $no_results;
-# $opts->{number} = $no_results;
-# $opts->{number_all}++;
-# } else {
-# $start = Packages::Search::start( $opts );
-# $end = Packages::Search::end( $opts );
-# if ($end > $no_results) { $end = $no_results; }
-# }
-#
-# print "<p>Found <em>$no_results</em> matching packages,";
-# if ($end == $start) {
-# print " displaying package $end.</p>";
-# } else {
-# print " displaying packages $start to $end.</p>";
-# }
-#
-# printindexline( $input, $no_results, $opts );
-#
-# if ($no_results > 100) {
-# print "<p>Results per page: ";
-# my @resperpagelinks;
-# for (50, 100, 200) {
-# if ($opts->{number} == $_) {
-# push @resperpagelinks, $_;
-# } else {
-# push @resperpagelinks, resperpagelink($input,$opts,$_);
-# }
-# }
-# if ($opts->{number_all}) {
-# push @resperpagelinks, "all";
-# } else {
-# push @resperpagelinks, resperpagelink($input, $opts, "all");
-# }
-# print join( " | ", @resperpagelinks )."</p>";
-# }
-# return ( $start, $end );
-#}
-
sub read_entry_all {
my ($hash, $key, $results, $non_results, $opts) = @_;
my ($virt, $result) = split /\000/o, $hash->{$key} || "-\01-", 2;
}
}
- foreach (split /\000/o, $result) {
+ foreach (split(/\000/o, $result||'')) {
my @data = split ( /\s/o, $_, 8 );
debug( "Considering entry ".join( ':', @data), 2) if DEBUG;
if ($opts->{h_suites}{$data[1]}
my @non_results;
read_entry_all( $hash, $key, $results, \@non_results, $opts );
}
+
+#FIXME: make configurable
+my %fallback_suites = (
+ 'oldstable-backports' => 'oldstable',
+ 'oldstable-volatile' => 'oldstable',
+ 'stable-backports' => 'stable',
+ 'stable-volatile' => 'stable',
+ experimental => 'unstable' );
+
sub read_entry_simple {
my ($hash, $key, $archives, $suite) = @_;
# FIXME: drop $archives
my %virt = split /\01/o, $virt;
debug( "read_entry_simple: key=$key, archives=".
join(" ",(keys %$archives)).", suite=$suite", 1) if DEBUG;
+ debug( "read_entry_simple: virt=".join(" ",(%virt)), 2) if DEBUG;
+ # FIXME: not all of the 2^4=16 combinations of empty(results),
+ # empty(virt{suite}), empty(fb_result), empty(virt{fb_suite}) are dealt
+ # with correctly, but it's adequate enough for now
return [ $virt{$suite} ] unless defined $result;
foreach (split /\000/o, $result) {
my @data = split ( /\s/o, $_, 8 );
debug( "use entry: @data", 2 ) if DEBUG && $data[1] eq $suite;
return [ $virt{$suite}, @data ] if $data[1] eq $suite;
}
+ if (my $fb_suite = $fallback_suites{$suite}) {
+ my $fb_result = read_entry_simple( $hash, $key, $archives, $fb_suite );
+ my $fb_virt = shift(@$fb_result);
+ $virt{$suite} .= $virt{$suite} ? " $fb_virt" : $fb_virt if $fb_virt;
+ return [ $virt{$suite}, @$fb_result ] if @$fb_result;
+ }
return [ $virt{$suite} ];
}
read_src_entry_all( $hash, $key, $results, \@non_results, $opts );
}
sub do_names_search {
- my ($keyword, $packages, $postfixes, $read_entry, $opts,
+ my ($keywords, $packages, $postfixes, $read_entry, $opts,
$results, $non_results) = @_;
- $keyword = lc $keyword;
+ my $first_keyword = lc shift @$keywords;
+ @$keywords = map { lc $_ } @$keywords;
- my ($key, $prefixes) = ($keyword, '');
+ my ($key, $prefixes) = ($first_keyword, '');
my %pkgs;
$postfixes->seq( $key, $prefixes, R_CURSOR );
- while (index($key, $keyword) >= 0) {
+ while (index($key, $first_keyword) >= 0) {
if ($prefixes =~ /^\001(\d+)/o) {
debug( "$key has too many hits", 2 ) if DEBUG;
$too_many_hits += $1;
} else {
+ PREFIX:
foreach (split /\000/o, $prefixes) {
$_ = '' if $_ eq '^';
- debug( "add word $_$key", 2) if DEBUG;
- $pkgs{$_.$key}++;
+ my $word = "$_$key";
+ foreach my $k (@$keywords) {
+ next PREFIX unless $word =~ /\Q$k\E/;
+ }
+ debug( "add word $word", 2) if DEBUG;
+ $pkgs{$word}++;
}
}
last if $postfixes->seq( $key, $prefixes, R_NEXT ) != 0;
my $no_results = keys %pkgs;
if ($too_many_hits || ($no_results >= 100)) {
$too_many_hits += $no_results;
- %pkgs = ( $keyword => 1 );
+ %pkgs = ( $first_keyword => 1 ) unless @$keywords;
}
foreach my $pkg (sort keys %pkgs) {
&$read_entry( $packages, $pkg, $results, $non_results, $opts );
}
}
-sub do_fulltext_search {
- my ($keyword, $file, $did2pkg, $packages, $read_entry, $opts,
+
+sub do_xapian_search {
+ my ($keywords, $dbpath, $did2pkg, $packages, $read_entry, $opts,
$results, $non_results) = @_;
# NOTE: this needs to correspond with parse-packages!
- $keyword =~ tr [A-Z] [a-z];
- if ($opts->{exact}) {
- $keyword = " $keyword ";
+ my @tmp;
+ foreach my $keyword (@$keywords) {
+ $keyword =~ s;[^\w/+]+; ;og;
+ push @tmp, $keyword;
}
- $keyword =~ s/[(),.-]+//og;
- $keyword =~ s#[^a-z0-9_/+]+# #og;
-
- my $numres = 0;
- my %tmp_results;
- # fgrep is seriously faster than using perl
- open DESC, '-|', 'fgrep', '-n', '--', $keyword, $file
- or die "couldn't open $file: $!";
- while (<DESC>) {
- /^(\d+)/;
- my $nr = $1;
- debug( "Matched line $_", 2) if DEBUG;
- my $result = $did2pkg->{$nr};
+ my $stemmer = Lingua::Stem->new();
+ my $stemmed_keywords = $stemmer->stem( @tmp );
+
+ my $db = Search::Xapian::Database->new( $dbpath );
+ my $enq = $db->enquire( OP_OR, @$keywords, @$stemmed_keywords );
+ debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG;
+ my @matches = $enq->matches(0, 999);
+
+ my (@order, %tmp_results);
+ foreach my $match ( @matches ) {
+ my $id = $match->get_docid();
+ my $result = $did2pkg->{$id};
+
foreach (split /\000/o, $result) {
my @data = split /\s/, $_, 3;
-# debug ("Considering $data[0], arch = $data[2]", 3) if DEBUG;
+ debug ("Considering $data[0], arch = $data[2], relevance=".$match->get_percent(), 3) if DEBUG;
# next unless $data[2] eq 'all' || $opts->{h_archs}{$data[2]};
# debug ("Ok", 3) if DEBUG;
- $numres++ unless $tmp_results{$data[0]}++;
+ unless ($tmp_results{$data[0]}++) {
+ push @order, $data[0];
+ }
}
- last if $numres > 100;
+ last if @order > 100;
}
- close DESC;
- $too_many_hits++ if $numres > 100;
+ undef $db;
+ $too_many_hits++ if @order > 100;
- my @results;
- foreach my $pkg (keys %tmp_results) {
+ debug ("ORDER: @order", 2) if DEBUG;
+ foreach my $pkg (@order) {
&$read_entry( $packages, $pkg, $results, $non_results, $opts );
}
- }
+}
+
+sub find_similar {
+ my ($pkg, $dbpath, $did2pkg) = @_;
+
+ my $db = Search::Xapian::Database->new( $dbpath );
+ my $enq = $db->enquire( "P$pkg" );
+ debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG;
+ my $first_match = ($enq->matches(0,1))[0]->get_document();
+
+ my @terms;
+ my $term_it = $first_match->termlist_begin();
+ my $term_end = $first_match->termlist_end();
+
+ for (; $term_it ne $term_end; $term_it++) {
+ debug( "TERM: ".$term_it->get_termname(), 3);
+ push @terms, $term_it->get_termname();
+ }
+
+ my $rel_enq = $db->enquire( OP_OR, @terms );
+ debug( "Xapian Query was: ".$rel_enq->get_query()->get_description(), 1) if DEBUG;
+ my @rel_pkg = $rel_enq->matches(2,20);
+
+# use Data::Dumper;
+# debug(Dumper(\@rel_pkg),1);
+
+ my (@order, %tmp_results);
+ foreach my $match ( @rel_pkg ) {
+ my $id = $match->get_docid();
+ my $result = $did2pkg->{$id};
+
+ foreach (split /\000/o, $result) {
+ my @data = split /\s/, $_, 3;
+ debug ("Considering $data[0], arch = $data[2], relevance=".$match->get_percent(), 3) if DEBUG;
+ next if $data[0] eq $pkg;
+ unless ($tmp_results{$data[0]}++) {
+ push @order, $data[0];
+ }
+ }
+ }
+ undef $db;
+
+ debug ("ORDER: @order", 2) if DEBUG;
+ return @order[0..10];
+}
sub find_binaries {
my ($pkg, $archive, $suite, $src2bin) = @_;
projects / deb / packages.git / blobdiff