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_version = $1
  78                             if $src =~ s/\s+\((.*)\).*//; # strip version info
  79                 }
  80                 $data{'source'} = $src;
  81                 $data{'source-version'} = $src_version if $src_version;
  82                 my $descr = $data{'description'};
  83                 my $did = undef;
  84                 if (exists($descriptions{$descr})) {
  85                         $did  = $descriptions{$descr};
  86                 } else {
  87                         $did = 1 + $#descriptions;
  88                         $descriptions[$did] = $descr;
  89                         $descriptions{$descr} = $did;
  90                 }
  91                 $data{'description'} = $did;
  92                 $packages_descriptions{"$data{'package'} $data{'version'} $data{'architecture'}"} = $did;
  93                 $descriptions_packages{$did} .=
  94                         "$data{'package'} $data{'version'} $data{'architecture'}\000";
  95
  96                 my $sdescr = $descr;
  97                 $sdescr =~ s/\n.*//s;
  98                 my $section = 'main';
  99                 my $subsection = $data{section} || '-';
 100                 if ($data{section} && ($data{section} =~ m=/=o)) {
 101                     ($section, $subsection) = split m=/=o, $data{section}, 2;
 102                     ($subsection, $section) = split m=/=o, $data{section}, 2
 103                         if $section eq 'non-US';
 104                 }
 105                 $data{'section'} = $section;
 106                 $data{'subsection'} = $subsection;
 107                 $data{'priority'} ||= '-';
 108                 $sections{$suite}{$archive}{$section}++;
 109                 $subsections{$suite}{$archive}{$subsection}++;
 110                 $priorities{$suite}{$archive}{$data{priority}}++;
 111                 $packages_small{$data{'package'}} .= "$archive $suite $data{'architecture'} ".
 112                         "$section $subsection $data{'priority'} $data{'version'} $sdescr\000";
 113                 $sources_packages{$src} .=
 114                         "$archive $suite $data{'package'} $data{'version'} $data{'architecture'}\000";
 115                 $data{archive} = $archive;
 116                 while (my ($key, $value) = each (%data)) {
 117                         next if $key eq 'package' or $key eq 'version' or $key eq 'architecture'
 118                                 or $key eq 'maintainer';
 119                         print STDERR "WARN: $key ($suite/$archive/$data{package}/$data{architecture}\n" unless defined $value;
 120                         $data .= "$key: $value\n";
 121                 }
 122                 $packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"}
 123                         = $data;
 124         }
 125
 126         untie %packages_all_db;
 127     }
 128 }
 129
 130 print "Writing databases...\n";
 131 my %packages_small_db;
 132 tie %packages_small_db, "DB_File", "$DBDIR/packages_small.db.new",
 133         O_RDWR|O_CREAT, 0666, $DB_BTREE
 134         or die "Error creating DB: $!";
 135 while (my ($k, $v) = each(%packages_small)) {
 136         $v =~ s/.$//s;
 137         $packages_small_db{$k} = $v;
 138 }
 139 untie %packages_small_db;
 140
 141 my %sources_packages_db;
 142 tie %sources_packages_db, "DB_File", "$DBDIR/sources_packages.db.new",
 143         O_RDWR|O_CREAT, 0666, $DB_BTREE
 144         or die "Error creating DB: $!";
 145 while (my ($k, $v) = each(%sources_packages)) {
 146         $v =~ s/.$//s;
 147         $sources_packages_db{$k} = $v;
 148 }
 149 untie %sources_packages_db;
 150
 151 my %packages_descriptions_db;
 152 tie %packages_descriptions_db, "DB_File", "$DBDIR/packages_descriptions.db.new",
 153         O_RDWR|O_CREAT, 0666, $DB_BTREE
 154         or die "Error creating DB: $!";
 155 while (my ($k, $v) = each(%packages_descriptions)) {
 156         $packages_descriptions_db{$k} = $v;
 157 }
 158 untie %packages_descriptions_db;
 159
 160 my %descriptions_packages_db;
 161 tie %descriptions_packages_db, "DB_File", "$DBDIR/descriptions_packages.db.new",
 162         O_RDWR|O_CREAT, 0666, $DB_BTREE
 163         or die "Error creating DB: $!";
 164 while (my ($k, $v) = each(%descriptions_packages)) {
 165         $v =~ s/.$//s;
 166         $descriptions_packages_db{$k} = $v;
 167 }
 168 untie %descriptions_packages_db;
 169
 170 my %descriptions_db;
 171 tie %descriptions_db, "DB_File", "$DBDIR/descriptions.db.new",
 172         O_RDWR|O_CREAT, 0666, $DB_BTREE
 173         or die "Error creating DB: $!";
 174 open DESCR, ">", "$DBDIR/descriptions.txt" or die "Error creating descriptions textfile";
 175 for (my $i=1; $i<= $#descriptions; $i++) {
 176         my $plain_description = $descriptions[$i];
 177         $plain_description =~ s/\n .\n/ /og;
 178         $plain_description =~ s/[\n \t]+/ /og;
 179         print DESCR "$plain_description\n";
 180         $descriptions_db{$i} = $descriptions[$i];
 181 }
 182 close DESCR;
 183 untie %descriptions_db;
 184
 185 # package names stuff:
 186 for my $pkg (keys %package_names) {
 187         for (my $i=0;$i<length($pkg)-1;$i++) {
 188                 my $before = substr($pkg, 0, $i);
 189                 my $after = substr($pkg, $i);
 190                 $before = "^" if $before eq ""; # otherwise split doesn't work properly
 191                 $package_postfixes{$after} .= "$before\0";
 192         }
 193 }
 194 my %package_postfixes_db;
 195 tie %package_postfixes_db, "DB_File", "$DBDIR/package_postfixes.db.new",
 196         O_RDWR|O_CREAT, 0666, $DB_BTREE
 197         or die "Error creating DB: $!";
 198 while (my ($k, $v) = each(%package_postfixes)) {
 199         $v =~ s/.$//s;
 200         my $nr = $v;
 201         $nr =~ s/[^\000]//g;
 202         $nr = length($nr) + 1; # < number of hits
 203         if ($nr > $MAX_PACKAGE_POSTFIXES) {
 204                 $v = "\001" . $nr;
 205         }
 206         $package_postfixes_db{$k} = $v;
 207 }
 208 untie %package_postfixes_db;
 209
 210 store \%sections, "$DBDIR/sections.info";
 211 store \%subsections, "$DBDIR/subsections.info";
 212 store \%priorities, "$DBDIR/priorities.info";
 213
 214 rename("$DBDIR/packages_small.db.new", "$DBDIR/packages_small.db");
 215 rename("$DBDIR/sources_packages.db.new", "$DBDIR/sources_packages.db");
 216 for my $suite (@SUITES) {
 217         rename("$DBDIR/packages_all_$suite.db.new",
 218                "$DBDIR/packages_all_$suite.db");
 219 }
 220 rename("$DBDIR/packages_descriptions.db.new",
 221        "$DBDIR/packages_descriptions.db");
 222 rename("$DBDIR/descriptions_packages.db.new",
 223        "$DBDIR/descriptions_packages.db");
 224 rename("$DBDIR/descriptions.txt.new", "$DBDIR/descriptions.txt");
 225 rename("$DBDIR/descriptions.db.new", "$DBDIR/descriptions.db");
 226 rename("$DBDIR/package_postfixes.db.new", "$DBDIR/package_postfixes.db");