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
  24 use DB_File;
  25 my %packages_small = ();
  26 my %sources_packages = ();
  27 my %descriptions = ();
  28 my @descriptions = ("we count lines one-based\000");
  29 my %packages_descriptions = ();
  30 my %descriptions_packages = ();
  31
  32 my @suites = ('oldstable', 'stable', 'testing', 'unstable', 'experimental');
  33
  34 $/ = "";
  35
  36 for my $suite (@suites) {
  37
  38         print "Reading $suite...\n";
  39         my %packages_all_db;
  40         tie %packages_all_db, "DB_File", "packages_all_$suite.db.new",
  41                 O_RDWR|O_CREAT, 0666, $DB_BTREE
  42                 or die "Error creating DB: $!";
  43         open PKG, "zcat /org/ftp.debian.org/ftp/dists/$suite/non-free/{,debian-installer/}binary-*/Packages.gz|";
  44         while (<PKG>) {
  45                 next if /^\s*$/;
  46                 my $data = "";
  47                 my %data = ();
  48                 chomp;
  49                 s/\n /\377/g;
  50                 #s/\376\377\s*\376\377/\376\377/og;
  51                 while (/^(\S+):\s*(.*)\s*$/mg) {
  52                         my ($key, $value) = ($1, $2);
  53                         $value =~ s/\377/\n /g;
  54                         $data .= "$key: $value\n";
  55                         $key =~ tr [A-Z] [a-z];
  56                         $data{$key} = $value;
  57                 }
  58                 # Skip double package
  59                 next if exists($packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"});
  60                 $packages_all_db{"$data{'package'} $data{'architecture'} $data{'version'}"}
  61                         = $data;
  62
  63                 my $src = $data{'package'};
  64                 my $srcversion = $data{'version'};
  65                 if ($data{'source'}) {
  66                         $src = $data{'source'};
  67                         if ($src =~ /(\S+) \((\S+)\)/) {
  68                                 $src = $1;
  69                                 $srcversion = $2;
  70                         }
  71                 }
  72                 my $descr = $data{'description'};
  73                 my $did = undef;
  74                 if (exists($descriptions{$descr})) {
  75                         $did  = $descriptions{$descr};
  76                 } else {
  77                         $did = 1 + $#descriptions;
  78                         $descriptions[$did] = $descr;
  79                         $descriptions{$descr} = $did;
  80                 }
  81                 $packages_descriptions{"$data{'package'} $data{'version'} $data{'architecture'}"} = $did;
  82                 $descriptions_packages{$did} .=
  83                         "$data{'package'} $data{'version'} $data{'architecture'}\000";
  84
  85                 my $sdescr = $descr;
  86                 $sdescr =~ s/\n.*//s;
  87                 $packages_small{$data{'package'}} .= "$suite $data{'architecture'} ".
  88                         "$data{'section'} $data{'priority'} $data{'version'} $sdescr\000";
  89                 $sources_packages{$src} .=
  90                         "$data{'package'} $data{'architecture'} $data{'version'}\000";
  91         }
  92
  93         untie %packages_all_db;
  94 }
  95
  96 print "Writing databases...\n";
  97 my %packages_small_db;
  98 tie %packages_small_db, "DB_File", "packages_small.db.new",
  99         O_RDWR|O_CREAT, 0666, $DB_BTREE
 100         or die "Error creating DB: $!";
 101 while (my ($k, $v) = each(%packages_small)) {
 102         $v =~ s/.$//s;
 103         $packages_small_db{$k} = $v;
 104 }
 105 untie %packages_small_db;
 106
 107 my %sources_packages_db;
 108 tie %sources_packages_db, "DB_File", "sources_packages.db.new",
 109         O_RDWR|O_CREAT, 0666, $DB_BTREE
 110         or die "Error creating DB: $!";
 111 while (my ($k, $v) = each(%sources_packages)) {
 112         $v =~ s/.$//s;
 113         $sources_packages_db{$k} = $v;
 114 }
 115 untie %sources_packages_db;
 116
 117 my %packages_descriptions_db;
 118 tie %packages_descriptions_db, "DB_File", "packages_descriptions.db.new",
 119         O_RDWR|O_CREAT, 0666, $DB_BTREE
 120         or die "Error creating DB: $!";
 121 while (my ($k, $v) = each(%packages_descriptions)) {
 122         $packages_descriptions_db{$k} = $v;
 123 }
 124 untie %packages_descriptions_db;
 125
 126 my %descriptions_packages_db;
 127 tie %descriptions_packages_db, "DB_File", "descriptions_packages.db.new",
 128         O_RDWR|O_CREAT, 0666, $DB_BTREE
 129         or die "Error creating DB: $!";
 130 while (my ($k, $v) = each(%descriptions_packages)) {
 131         $v =~ s/.$//s;
 132         $descriptions_packages_db{$k} = $v;
 133 }
 134 untie %descriptions_packages_db;
 135
 136 my %descriptions_db;
 137 tie %descriptions_db, "DB_File", "descriptions.db.new",
 138         O_RDWR|O_CREAT, 0666, $DB_BTREE
 139         or die "Error creating DB: $!";
 140 open DESCR, "> descriptions.txt" or die "Error creating descriptions textfile";
 141 for (my $i=1; $i<= $#descriptions; $i++) {
 142         my $null_d = $descriptions[$i];
 143         $null_d =~ s/\n/\000/g;
 144         print DESCR "$null_d\n";
 145         $descriptions_db{$i} = $descriptions[$i];
 146 }
 147 close DESCR;
 148 untie %descriptions_db;
 149
 150 rename("packages_small.db.new", "packages_small.db");
 151 rename("sources_packages.db.new", "sources_packages.db");
 152 for my $suite (@suites) {
 153         rename("packages_all_$suite.db.new", "packages_all_$suite.db");
 154 }
 155 rename("packages_descriptions.db.new", "packages_descriptions.db");
 156 rename("descriptions_packages.db.new", "descriptions_packages.db");
 157 rename("descriptions.txt.new", "descriptions.txt");
 158 rename("descriptions.db.new", "descriptions.db");