bin/parse-packages

   1 #!/usr/bin/perl -w
   2 # Convert Packages.gz files into Sleepycat db files for efficient usage of
   3 # data
   4 #
   5 # $Id$
   6 #
   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.
  12
  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.
  17
  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
  21
  22 use strict;
  23 use lib './lib';
  24
  25 my $what = $ARGV[0] ? "non-free" : "*";
  26 # max. distinct results for a given package postfix
  27 my $MAX_PACKAGE_POSTFIXES = 100;
  28
  29 use DB_File;
  30 use Storable;
  31 use Packages::Config qw( $TOPDIR $DBDIR @ARCHIVES @SUITES );
  32 &Packages::Config::init( './' );
  33 my %packages_small = ();
  34 my %package_names = ();
  35 my %package_postfixes = ();
  36 my %sources_packages = ();
  37 my %descriptions = ();
  38 my @descriptions = ("we count lines one-based\000");
  39 my %packages_descriptions = ();
  40 my %descriptions_packages = ();
  41
  42 my %sections = ();
  43 my %subsections = ();
  44 my %priorities = ();
  45
  46 $/ = "";
  47
  48 for my $archive (@ARCHIVES) {
  49     for my $suite (@SUITES) {
  50
  51         print "Reading $archive/$suite...\n";
  52         my %packages_all_db;
  53         tie %packages_all_db, "DB_File", "$DBDIR/packages_all_$suite.db.new",
  54                 O_RDWR|O_CREAT, 0666, $DB_BTREE
  55                 or die "Error creating DB: $!";
  56         open PKG, "zcat $TOPDIR/archive/$archive/$suite/$what/{,debian-installer/}binary-*/Packages.gz|";
  57         while (<PKG>) {
  58                 next if /^\s*$/;
  59                 my $data = "";
  60                 my %data = ();
  61                 chomp;
  62                 s/\n /\377/g;
  63                 while (/^(\S+):\s*(.*)\s*$/mg) {
  64                         my ($key, $value) = ($1, $2);
  65                         $value =~ s/\377/\n /g;
  66                         $key =~ tr [A-Z] [a-z];
  67                         $data{$key} = $value;
  68                 }
  69                 # Skip double package
  70                 next if exists($packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"});
  71
  72                 $package_names{$data{'package'}} = 1;
  73                 my $src = $data{'package'};
  74                 my $src_version = '';
  75                 if ($data{'source'}) {
  76                         $src = $data{'source'};
  77                         $src =~ s/\s+.*//; # strip version info
  78                 }
  79                 $data{'source'} = $src;
  80                 my $descr = $data{'description'};
  81                 my $did = undef;
  82                 if (exists($descriptions{$descr})) {
  83                         $did  = $descriptions{$descr};
  84                 } else {
  85                         $did = 1 + $#descriptions;
  86                         $descriptions[$did] = $descr;
  87                         $descriptions{$descr} = $did;
  88                 }
  89                 $data{'description'} = $did;
  90                 $packages_descriptions{"$data{'package'} $data{'version'} $data{'architecture'}"} = $did;
  91                 $descriptions_packages{$did} .=
  92                         "$data{'package'} $data{'version'} $data{'architecture'}\000";
  93
  94                 my $sdescr = $descr;
  95                 $sdescr =~ s/\n.*//s;
  96                 my $section = 'main';
  97                 my $subsection = $data{section} || '-';
  98                 if ($data{section} && ($data{section} =~ m=/=o)) {
  99                     ($section, $subsection) = split m=/=o, $data{section}, 2;
 100                     ($subsection, $section) = split m=/=o, $data{section}, 2
 101                         if $section eq 'non-US';
 102                 }
 103                 $data{'section'} = $section;
 104                 $data{'subsection'} = $subsection;
 105                 $data{'priority'} ||= '-';
 106                 $sections{$suite}{$archive}{$section}++;
 107                 $subsections{$suite}{$archive}{$subsection}++;
 108                 $priorities{$suite}{$archive}{$data{priority}}++;
 109                 $packages_small{$data{'package'}} .= "$archive $suite $data{'architecture'} ".
 110                         "$section $subsection $data{'priority'} $data{'version'} $sdescr\000";
 111                 $sources_packages{$src} .=
 112                         "$archive $suite $data{'package'} $data{'version'} $data{'architecture'}\000";
 113                 $data{archive} = $archive;
 114                 while (my ($key, $value) = each (%data)) {
 115                         next if $key eq 'package' or $key eq 'version' or $key eq 'architecture'
 116                                 or $key eq 'maintainer';
 117                         print STDERR "WARN: $key ($suite/$archive/$data{package}/$data{architecture}\n" unless defined $value;
 118                         $data .= "$key\00$value\00";
 119                 }
 120                 $data =~ s/.$//s;
 121                 $packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"}
 122                         = $data;
 123         }
 124
 125         untie %packages_all_db;
 126     }
 127 }
 128
 129 print "Writing databases...\n";
 130 my %packages_small_db;
 131 tie %packages_small_db, "DB_File", "$DBDIR/packages_small.db.new",
 132         O_RDWR|O_CREAT, 0666, $DB_BTREE
 133         or die "Error creating DB: $!";
 134 while (my ($k, $v) = each(%packages_small)) {
 135         $v =~ s/.$//s;
 136         $packages_small_db{$k} = $v;
 137 }
 138 untie %packages_small_db;
 139
 140 my %sources_packages_db;
 141 tie %sources_packages_db, "DB_File", "$DBDIR/sources_packages.db.new",
 142         O_RDWR|O_CREAT, 0666, $DB_BTREE
 143         or die "Error creating DB: $!";
 144 while (my ($k, $v) = each(%sources_packages)) {
 145         $v =~ s/.$//s;
 146         $sources_packages_db{$k} = $v;
 147 }
 148 untie %sources_packages_db;
 149
 150 my %packages_descriptions_db;
 151 tie %packages_descriptions_db, "DB_File", "$DBDIR/packages_descriptions.db.new",
 152         O_RDWR|O_CREAT, 0666, $DB_BTREE
 153         or die "Error creating DB: $!";
 154 while (my ($k, $v) = each(%packages_descriptions)) {
 155         $packages_descriptions_db{$k} = $v;
 156 }
 157 untie %packages_descriptions_db;
 158
 159 my %descriptions_packages_db;
 160 tie %descriptions_packages_db, "DB_File", "$DBDIR/descriptions_packages.db.new",
 161         O_RDWR|O_CREAT, 0666, $DB_BTREE
 162         or die "Error creating DB: $!";
 163 while (my ($k, $v) = each(%descriptions_packages)) {
 164         $v =~ s/.$//s;
 165         $descriptions_packages_db{$k} = $v;
 166 }
 167 untie %descriptions_packages_db;
 168
 169 my %descriptions_db;
 170 tie %descriptions_db, "DB_File", "$DBDIR/descriptions.db.new",
 171         O_RDWR|O_CREAT, 0666, $DB_BTREE
 172         or die "Error creating DB: $!";
 173 open DESCR, ">", "$DBDIR/descriptions.txt" or die "Error creating descriptions textfile";
 174 for (my $i=1; $i<= $#descriptions; $i++) {
 175         my $plain_description = $descriptions[$i];
 176         $plain_description =~ s/\n .\n/ /og;
 177         $plain_description =~ s/[\n \t]+/ /og;
 178         print DESCR "$plain_description\n";
 179         $descriptions_db{$i} = $descriptions[$i];
 180 }
 181 close DESCR;
 182 untie %descriptions_db;
 183
 184 # package names stuff:
 185 for my $pkg (keys %package_names) {
 186         for (my $i=0;$i<length($pkg)-1;$i++) {
 187                 my $before = substr($pkg, 0, $i);
 188                 my $after = substr($pkg, $i);
 189                 $before = "^" if $before eq ""; # otherwise split doesn't work properly
 190                 $package_postfixes{$after} .= "$before\0";
 191         }
 192 }
 193 my %package_postfixes_db;
 194 tie %package_postfixes_db, "DB_File", "$DBDIR/package_postfixes.db.new",
 195         O_RDWR|O_CREAT, 0666, $DB_BTREE
 196         or die "Error creating DB: $!";
 197 while (my ($k, $v) = each(%package_postfixes)) {
 198         $v =~ s/.$//s;
 199         my $nr = $v;
 200         $nr =~ s/[^\000]//g;
 201         $nr = length($nr) + 1; # < number of hits
 202         if ($nr > $MAX_PACKAGE_POSTFIXES) {
 203                 $v = "\001" . $nr;
 204         }
 205         $package_postfixes_db{$k} = $v;
 206 }
 207 untie %package_postfixes_db;
 208
 209 store \%sections, "$DBDIR/sections.info";
 210 store \%subsections, "$DBDIR/subsections.info";
 211 store \%priorities, "$DBDIR/priorities.info";
 212
 213 rename("$DBDIR/packages_small.db.new", "$DBDIR/packages_small.db");
 214 rename("$DBDIR/sources_packages.db.new", "$DBDIR/sources_packages.db");
 215 for my $suite (@SUITES) {
 216         rename("$DBDIR/packages_all_$suite.db.new",
 217                "$DBDIR/packages_all_$suite.db");
 218 }
 219 rename("$DBDIR/packages_descriptions.db.new",
 220        "$DBDIR/packages_descriptions.db");
 221 rename("$DBDIR/descriptions_packages.db.new",
 222        "$DBDIR/descriptions_packages.db");
 223 rename("$DBDIR/descriptions.txt.new", "$DBDIR/descriptions.txt");
 224 rename("$DBDIR/descriptions.db.new", "$DBDIR/descriptions.db");
 225 rename("$DBDIR/package_postfixes.db.new", "$DBDIR/package_postfixes.db");