2 # Convert Packages.gz files into Sleepycat db files for efficient usage of
7 # Copyright (C) 2006 Jeroen van Wolffelaar <jeroen@wolffelaar.nl>
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2 of the License, or
11 # (at your option) any later version.
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write to the Free Software
20 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
28 my $what = $ARGV[0] ? "non-free" : "*";
29 # max. distinct results for a given package postfix
30 my $MAX_PACKAGE_POSTFIXES = 100;
37 use Lingua::Stem v0.82;
39 use Packages::Config qw( $TOPDIR $DBDIR @ARCHIVES @SUITES );
40 &Packages::Config::init( './' );
41 my %packages_small = ();
42 my %virtual_packages = ();
43 my %package_names = ();
44 my %package_postfixes = ();
45 my %sources_packages = ();
46 my %descriptions = ();
47 my @descriptions = ("we count lines one-based\000");
48 my %packages_descriptions = ();
49 my %descriptions_packages = ();
57 -d $DBDIR || mkpath( $DBDIR );
58 -d "$DBDIR/xapian.new" && rmtree("$DBDIR/xapian.new");
59 -d "$DBDIR/xapian.old" && rmtree("$DBDIR/xapian.old");
60 mkpath( "$DBDIR/xapian.new" );
62 for my $suite (@SUITES) {
63 my %package_names_suite = ();
65 tie %packages_all_db, "DB_File", "$DBDIR/packages_all_$suite.db.new",
66 O_RDWR|O_CREAT, 0666, $DB_BTREE
67 or die "Error creating DB: $!";
69 for my $archive (@ARCHIVES) {
70 print "Reading $archive/$suite...\n";
71 if (!-d "$TOPDIR/archive/$archive/$suite/") {
72 print "\tseems not to exist, skipping...\n";
75 open PKG, "zcat $TOPDIR/archive/$archive/$suite/$what/{,debian-installer/}binary-*/Packages.gz|";
82 while (/^(\S+):\s*(.*)\s*$/mg) {
83 my ($key, $value) = ($1, $2);
84 $value =~ s/\377/\n /g;
85 $key =~ tr [A-Z] [a-z];
89 next if exists($packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"});
90 # Skip arch:all for amd64 & gnuab, any non-redundancy is
91 # usually a bug anyway
92 next if ($archive eq 'amd64' or $archive eq 'gnuab')
93 and $data{architecture} eq 'all';
95 if ($data{'provides'}) {
96 foreach (split /\s*,\s*/, $data{'provides'}) {
97 $virtual_packages{$_}{$suite}{$data{'package'}}++;
98 $packages_small{$_} ||= {};
101 $package_names{$data{'package'}} = 1;
102 $package_names_suite{$data{'package'}} = 1;
103 my $src = $data{'package'};
104 my $src_version = '';
105 if ($data{'source'}) {
106 $src = $data{'source'};
107 $src =~ s/\s+.*//o; # strip version info
109 $data{'source'} = $src;
110 # we add some additional data here
111 my $descr = "$data{'description'}\000$data{'package'}\000"
113 my $sdescr = $data{'description'};
114 $sdescr =~ s/\n.*//os;
116 if (exists($descriptions{$descr})) {
117 $did = $descriptions{$descr};
119 $did = 1 + $#descriptions;
120 $descriptions[$did] = $descr;
121 $descriptions{$descr} = $did;
123 $data{'description-md5'} = Digest::MD5::md5_hex($data{'description'}, "\n");
124 $data{'description'} = $did;
125 $packages_descriptions{"$data{'package'} $data{'version'} $data{'architecture'}"} = $did;
126 $descriptions_packages{$did} .=
127 "$data{'package'} $data{'version'} $data{'architecture'}\000";
129 my $section = 'main';
130 my $subsection = $data{section} || '-';
131 if ($data{section} && ($data{section} =~ m=/=o)) {
132 ($section, $subsection) = split m=/=o, $data{section}, 2;
133 ($subsection, $section) = split m=/=o, $data{section}, 2
134 if $section eq 'non-US';
136 $data{'section'} = $section;
137 $data{'subsection'} = $subsection;
138 $data{'priority'} ||= '-';
139 $sections{$suite}{$section}++;
140 $subsections{$suite}{$subsection}++;
141 $priorities{$suite}{$data{priority}}++;
142 my $pkgitem = "$archive $suite $data{'architecture'} ".
143 "$section $subsection $data{'priority'} $data{'version'} $sdescr\0";
144 my $previtem = ($packages_small{$data{'package'}}{$suite}{$data{'architecture'}}
146 $packages_small{$data{'package'}}{$suite}{$data{'architecture'}} = $pkgitem
147 if version_cmp($data{'version'}, (split /\s/o, $previtem)[6]) > 0;
148 $previtem = ($packages_small{$data{'package'}}{$suite}{'any'}
150 $packages_small{$data{'package'}}{$suite}{'any'} = $pkgitem
151 if version_cmp($data{'version'}, (split /\s/o, $previtem)[6]) > 0;
152 $sources_packages{$src} .=
153 "$archive $suite $data{'package'} $data{'version'} $data{'architecture'}\000";
154 $data{archive} = $archive;
155 while (my ($key, $value) = each (%data)) {
156 next if $key eq 'package' or $key eq 'version' or $key eq 'architecture'
157 or $key eq 'maintainer';
158 print STDERR "WARN: $key ($suite/$archive/$data{package}/$data{architecture}\n" unless defined $value;
159 $data .= "$key\00$value\00";
162 $packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"}
167 open NAMES, '>', "$DBDIR/package_names_$suite.txt.new"
168 or die "Error creating package names list: $!";
169 foreach (sort keys %package_names_suite) {
174 untie %packages_all_db;
177 print "Writing databases...\n";
178 my %packages_small_db;
179 tie %packages_small_db, "DB_File", "$DBDIR/packages_small.db.new",
180 O_RDWR|O_CREAT, 0666, $DB_BTREE
181 or die "Error creating DB: $!";
182 while (my ($pkg, $v) = each(%packages_small)) {
183 my ($res1, $res2, $res3) = ("", "", "");
184 while (my ($suite, $v2) = each %$v) {
185 $res2 .= $v2->{'any'};
186 while (my ($arch, $v3) = each %$v2) {
187 next if $arch eq 'any' or $v3 eq $v2->{'any'};
192 if (exists $virtual_packages{$pkg}) {
193 while (my ($suite, $v2) = each %{$virtual_packages{$pkg}}) {
194 $res1 .= "$suite\01".(join ' ', keys %$v2)."\01";
201 my $res = "$res1$res2$res3";
203 $packages_small_db{$pkg} = $res;
205 untie %packages_small_db;
207 my %sources_packages_db;
208 tie %sources_packages_db, "DB_File", "$DBDIR/sources_packages.db.new",
209 O_RDWR|O_CREAT, 0666, $DB_BTREE
210 or die "Error creating DB: $!";
211 while (my ($k, $v) = each(%sources_packages)) {
213 $sources_packages_db{$k} = $v;
215 untie %sources_packages_db;
217 my %packages_descriptions_db;
218 tie %packages_descriptions_db, "DB_File", "$DBDIR/packages_descriptions.db.new",
219 O_RDWR|O_CREAT, 0666, $DB_BTREE
220 or die "Error creating DB: $!";
221 while (my ($k, $v) = each(%packages_descriptions)) {
222 $packages_descriptions_db{$k} = $v;
224 untie %packages_descriptions_db;
226 my %descriptions_packages_db;
227 tie %descriptions_packages_db, "DB_File", "$DBDIR/descriptions_packages.db.new",
228 O_RDWR|O_CREAT, 0666, $DB_BTREE
229 or die "Error creating DB: $!";
230 while (my ($k, $v) = each(%descriptions_packages)) {
232 $descriptions_packages_db{$k} = $v;
234 untie %descriptions_packages_db;
236 my $stemmer = Lingua::Stem->new();
237 $stemmer->stem_caching({ -level => 2 });
240 $xapian_db = Search::Xapian::WritableDatabase->new("$DBDIR/xapian.new",
241 Search::Xapian::DB_CREATE_OR_OPEN)
242 or die "can't create write-able db object: $!\n";
246 tie %descriptions_db, "DB_File", "$DBDIR/descriptions.db.new",
247 O_RDWR|O_CREAT, 0666, $DB_BTREE
248 or die "Error creating DB: $!";
249 open DESCR, ">", "$DBDIR/descriptions.txt" or die "Error creating descriptions textfile";
250 print "Index $#descriptions descriptions\n";
251 for (my $i=1; $i<= $#descriptions; $i++) {
252 my $plain_description = $descriptions[$i];
253 # strip away additional data
254 my ($only_desc) = split /\000/o, $plain_description, 2;
255 # WARNING: This needs to correspond with what happens in
256 # Packages/Search.pm:do_fulltext_search
257 $plain_description =~ tr [A-Z] [a-z];
258 # ensure one space on both ends
259 $plain_description = " $plain_description ";
260 $plain_description =~ s/[(),.-]+//og;
261 $plain_description =~ s#[^a-z0-9_/+]+# #og;
262 print DESCR "$plain_description\n";
266 my @words = split /\s+/, $plain_description;
267 my $stem_words = $stemmer->stem( \@words );
268 my $doc = Search::Xapian::Document->new()
269 or die "can't create doc object for $i: $!\n";
270 if ($doc->set_data($i)){
271 warn "can't set_data in doc object for $i: $!\n";
273 for my $j (0 .. (@$stem_words-1)) {
274 next if $stem_words->[$j] =~ /^\s*$/o;
275 if ($doc->add_posting($stem_words->[$j], $j)) {
276 warn "can't add word $stem_words->[$j] $j: $!\n";
279 $xapian_db->add_document($doc)
280 or warn "failed to add document: $i\n";
284 $descriptions_db{$i} = $only_desc;
287 untie %descriptions_db;
291 # package names stuff:
292 for my $pkg (keys %package_names) {
293 for (my $i=0;$i<length($pkg)-1;$i++) {
294 my $before = substr($pkg, 0, $i);
295 my $after = substr($pkg, $i);
296 $before = "^" if $before eq ""; # otherwise split doesn't work properly
297 $package_postfixes{$after} .= "$before\0";
300 my %package_postfixes_db;
301 tie %package_postfixes_db, "DB_File", "$DBDIR/package_postfixes.db.new",
302 O_RDWR|O_CREAT, 0666, $DB_BTREE
303 or die "Error creating DB: $!";
304 while (my ($k, $v) = each(%package_postfixes)) {
308 $nr = length($nr) + 1; # < number of hits
309 if ($nr > $MAX_PACKAGE_POSTFIXES) {
312 $package_postfixes_db{$k} = $v;
314 untie %package_postfixes_db;
316 store \%sections, "$DBDIR/sections.info";
317 store \%subsections, "$DBDIR/subsections.info";
318 store \%priorities, "$DBDIR/priorities.info";
320 rename("$DBDIR/packages_small.db.new", "$DBDIR/packages_small.db");
321 rename("$DBDIR/sources_packages.db.new", "$DBDIR/sources_packages.db");
322 for my $suite (@SUITES) {
323 rename("$DBDIR/packages_all_$suite.db.new",
324 "$DBDIR/packages_all_$suite.db");
325 rename("$DBDIR/package_names_$suite.txt.new",
326 "$DBDIR/package_names_$suite.txt");
328 rename("$DBDIR/xapian", "$DBDIR/xapian.old");
329 rename("$DBDIR/xapian.new","$DBDIR/xapian");
330 rmtree("$DBDIR/xapian.old");
331 rename("$DBDIR/packages_descriptions.db.new",
332 "$DBDIR/packages_descriptions.db");
333 rename("$DBDIR/descriptions_packages.db.new",
334 "$DBDIR/descriptions_packages.db");
335 rename("$DBDIR/descriptions.txt.new", "$DBDIR/descriptions.txt");
336 rename("$DBDIR/descriptions.db.new", "$DBDIR/descriptions.db");
337 rename("$DBDIR/package_postfixes.db.new", "$DBDIR/package_postfixes.db");