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- package rpmtools;
-
- use strict;
- use vars qw($VERSION @ISA);
-
- require DynaLoader;
-
- @ISA = qw(DynaLoader);
- $VERSION = '2.3';
-
- bootstrap rpmtools $VERSION;
-
- =head1 NAME
-
- rpmtools - Mandrake perl tools to handle rpm files and hdlist files
-
- =head1 SYNOPSYS
-
- require rpmtools;
-
- my $params = new rpmtools;
-
- $params->read_hdlists("/export/Mandrake/base/hdlist.cz",
- "/export/Mandrake/base/hdlist2.cz");
- $params->read_rpms("/RPMS/rpmtools-2.1-5mdk.i586.rpm");
- $params->compute_depslist();
-
- my $db = $params->db_open("");
- $params->db_traverse_tag($db,
- "name", \@names,
- [ qw(name version release) ],
- sub {
- my ($p) = @_;
- print "$p->{name}-$p->{version}-$p->{release}\n";
- });
- $params->db_traverse($db,
- [ qw(name version release) ],
- sub {
- my ($p) = @_;
- print "$p->{name}-$p->{version}-$p->{release}\n";
- });
- $params->db_close($db);
-
- $params->read_depslist(\*STDIN);
- $params->write_depslist(\*STDOUT);
-
- rpmtools::version_compare("1.0.23", "1.0.4");
-
- =head1 DESCRIPTION
-
- C<rpmtools> extend perl to manipulate hdlist file used by
- Linux-Mandrake distribution to compute dependancy file.
-
- =head1 SEE ALSO
-
- parsehdlist command is a simple hdlist parser that allow interactive mode
- use by DrakX upgrade algorithms.
-
- =head1 COPYRIGHT
-
- Copyright (C) 2000 MandrakeSoft <fpons@mandrakesoft.com>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- =cut
-
- #- build an empty params struct that can be used to compute dependancies.
- sub new {
- my ($class, @tags) = @_;
- my %tags; @tags{@_} = ();
- bless {
- flags => [ qw(name version release size arch group requires provides),
- grep { exists $tags{$_} } qw(sense files obsoletes conflicts conffiles) ],
- info => {},
- depslist => [],
- provides => {},
- }, $class;
- }
-
- #- read one or more hdlist files, use packdrake for decompression.
- sub read_hdlists {
- my ($params, @hdlists) = @_;
- my @names;
-
- local (*I, *O); pipe I, O;
- if (my $pid = fork()) {
- close O;
-
- push @names, rpmtools::_parse_(fileno *I, $params->{flags}, $params->{info}, $params->{provides});
-
- close I;
- waitpid $pid, 0;
- } else {
- close I;
- open STDOUT, ">&O" or die "unable to redirect output";
-
- require packdrake;
- packdrake::cat_archive(@hdlists);
-
- close O;
- exit 0;
- }
- @names;
- }
-
- #- build an hdlist from a list of files.
- sub build_hdlist {
- my ($params, $noclean, $ratio, $dir, $hdlist, @rpms) = @_;
- my %names;
-
- #- build a working directory which will hold rpm headers.
- $dir ||= '.';
- -d $dir or mkdir $dir, 0755 or die "cannot create directory $dir\n";
-
- foreach (@rpms) {
- my ($key, $name) = /(([^\/]*)-[^-]*-[^-]*\.[^\/\.]*)\.rpm$/ or next;
- system("rpm2header '$_' > '$dir/$key'") unless -e "$dir/$key";
- $? == 0 or unlink("$dir/$key"), die "bad rpm $_\n";
- -s "$dir/$key" or unlink("$dir/$key"), die "bad rpm $_\n";
- push @{$names{$name} ||= []}, $key;
- }
-
- #- compression ratio are not very high, sample for cooker
- #- gives the following (main only and cache fed up):
- #- ratio compression_time size
- #- 9 21.5 sec 8.10Mb -> good for installation CD
- #- 6 10.7 sec 8.15Mb
- #- 5 9.5 sec 8.20Mb
- #- 4 8.6 sec 8.30Mb -> good for urpmi
- #- 3 7.6 sec 8.60Mb
- open B, "| packdrake -b${ratio}ds '$hdlist' '$dir' 400000";
- foreach (@{$params->{depslist}}) {
- if (my $keys = delete $names{$_->{name}}) {
- print B "$_\n" foreach @$keys;
- }
- }
- foreach (values %names) {
- print B "$_\n" foreach @$_;
- }
- close B or die "packdrake failed\n";
-
- system("rm", "-rf", $dir) unless $dir eq '.' || $noclean;
- }
-
- #- read one or more rpm files.
- sub read_rpms {
- my ($params, @rpms) = @_;
-
- map { rpmtools::_parse_($_, $params->{flags}, $params->{info}, $params->{provides}) } @rpms;
- }
-
- #- compute dependancies, result in stored in info values of params.
- #- operations are incremental, it is possible to read just one hdlist, compute
- #- dependancies and read another hdlist, and again.
- sub compute_depslist {
- my ($params) = @_;
-
- #- avoid recomputing already present infos, take care not to modify
- #- existing entries, as the array here is used instead of values of infos.
- my @info = grep { ! exists $_->{id} } values %{$params->{info}};
-
- #- speed up the search by giving a provide from all packages.
- #- and remove all dobles for each one !
- foreach (@info) {
- push @{$params->{provides}{$_->{name}} ||= []}, $_->{name};
- }
-
- #- remove all dobles for each provides.
- foreach (keys %{$params->{provides}}) {
- $params->{provides}{$_} or next;
- my %provides; @provides{@{$params->{provides}{$_}}} = ();
- $params->{provides}{$_} = [ keys %provides ];
- }
-
- #- take into account in which hdlist a package has been found.
- #- this can be done by an incremental take into account generation
- #- of depslist.ordered part corresponding to the hdlist.
- #- compute closed requires, do not take into account choices.
- foreach (@info) {
- my %required_packages;
- my @required_packages;
- my %requires; @requires{@{$_->{requires} || []}} = ();
- my @requires = keys %requires;
-
- while (my $req = shift @requires) {
- $req eq 'basesystem' and next; #- never need to requires basesystem directly as always required! what a speed up!
- ref $req or $req = $params->{provides}{$req} || ($req =~ /rpmlib\(/ ? [] :
- [ ($req !~ /NOTFOUND_/ && "NOTFOUND_") . $req ]);
- if (@$req > 1) {
- #- this is a choice, no closure need to be done here.
- exists $requires{$req} or push @required_packages, $req;
- $requires{$req} = undef;
- } else {
- #- this could be nothing if the provides is a file not found.
- #- and this has been fixed above.
- foreach (@$req) {
- my $info = $params->{info}{$_};
- $required_packages{$_} = undef; $info or next;
- if ($info->{deps} && !$info->{requires}) {
- #- the package has been read from an ordered depslist file, and need
- #- to rebuild its requires tags, so it can safely be used here.
- my @rebuild_requires;
- foreach (split ' ', $info->{deps}) {
- if (/\|/) {
- push @rebuild_requires, [ map { $params->{depslist}[$_]{name} || $_ } split /\|/, $_ ];
- } else {
- push @rebuild_requires, $params->{depslist}[$_]{name} || $_;
- }
- }
- $info->{requires} = \@rebuild_requires;
- }
- foreach (@{$info->{requires} || []}) {
- unless (exists $requires{$_}) {
- $requires{$_} = undef;
- push @{ref $_ ? \@required_packages : \@requires}, $_;
- }
- }
- }
- }
- }
- unshift @required_packages, keys %required_packages;
-
- delete $_->{requires}; #- affecting it directly make perl crazy, oops for rpmtools. TODO
- $_->{requires} = \@required_packages;
- }
-
- #- sort packages, expand choices and closure again.
- my %ordered;
- foreach (@info) {
- my %requires;
- my @requires = ($_->{name});
- while (my $dep = shift @requires) {
- foreach (@{$params->{info}{$dep} && $params->{info}{$dep}{requires} || []}) {
- if (ref $_) {
- foreach (@$_) {
- unless (exists $requires{$_}) {
- $requires{$_} = undef;
- push @requires, $_;
- }
- }
- } else {
- unless (exists $requires{$_}) {
- $requires{$_} = undef;
- push @requires, $_;
- }
- }
- }
- }
-
- if ($_->{name} eq 'basesystem') {
- foreach (keys %requires) {
- $ordered{$_} += 10001;
- }
- } else {
- foreach (keys %requires) {
- ++$ordered{$_};
- }
- }
- }
- #- setup, filesystem and basesystem should be at the beginning.
- @ordered{qw(ldconfig readline termcap libtermcap2 bash sash glibc setup filesystem basesystem)} =
- (100000, 90000, 80000, 70000, 60000, 50000, 40000, 30000, 20000, 10000);
-
- #- compute base flag, consists of packages which are required without
- #- choices of basesystem and are ALWAYS installed. these packages can
- #- safely be removed from requires of others packages.
- foreach (@{$params->{info}{basesystem}{requires}}) {
- ref $_ or $params->{info}{$_} and $params->{info}{$_}{base} = undef;
- }
- #- some package are always installed as base and can safely be marked as such.
- foreach (qw(basesystem glibc)) {
- $params->{info}{$_} and $params->{info}{$_}{base} = undef;
- }
-
- #- give an id to each packages, start from number of package already
- #- registered in depslist.
- my $global_id = scalar @{$params->{depslist}};
- foreach (sort { $ordered{$b->{name}} <=> $ordered{$a->{name}} || $a->{name} cmp $b->{name} } @info) {
- $_->{id} = $global_id++;
- }
-
- #- recompute requires to use packages id, drop any base packages or
- #- reference of a package to itself.
- foreach my $pkg (sort { $a->{id} <=> $b->{id} } @info) {
- my ($id, $base, %requires_id, @requires_id);
- foreach (@{$pkg->{requires}}) {
- if (ref $_) {
- #- all choices are grouped together at the end of requires,
- #- this allow computation of dropable choices.
- my ($to_drop, @choices_base_id, @choices_id);
- foreach (@$_) {
- my ($id, $base) = $params->{info}{$_} ? ($params->{info}{$_}{id}, exists $params->{info}{$_}{base}) : ($_, 0);
- $base and push @choices_base_id, $id;
- $base &&= ! exists $pkg->{base};
- $to_drop ||= $id == $pkg->{id} || $requires_id{$id} || $base;
- push @choices_id, $id;
- }
-
- #- package can safely be dropped as it will be selected in requires directly.
- $to_drop and next;
-
- #- if a base package is in a list, keep it instead of the choice.
- if (@choices_base_id) {
- ($id, $base) = ($choices_base_id[0], 1);
- } else {
- my $choices_key = join '|', @choices_id;
- exists $requires_id{$choices_key} or push @requires_id, \@choices_id;
- $requires_id{$choices_key} = undef;
- next;
- }
- } else {
- ($id, $base) = $params->{info}{$_} ? ($params->{info}{$_}{id}, exists $params->{info}{$_}{base}) : ($_, 0);
- }
-
- #- select individual package.
- $base &&= ! exists $pkg->{base};
- $requires_id{$id} = $_;
- $id == $pkg->{id} || $base or push @requires_id, $id;
- }
- #- cannot remove requires values as they are necessary for closure on incremental job.
- $pkg->{deps} = join(' ', map { join '|', @{ref $_ ? $_ : [$_]} } @requires_id);
- push @{$params->{depslist}}, $pkg;
- }
- 1;
- }
-
- #- read depslist.ordered file, as if it was computed internally.
- sub read_depslist {
- my ($params, $FILE) = @_;
- my $global_id = scalar @{$params->{depslist}};
-
- local $_;
- while (<$FILE>) {
- chomp; /^\s*#/ and next;
- my ($name, $version, $release, $size, $deps) = /^(\S*)-([^-\s]+)-([^-\s]+)\s+(\d+)\s*(.*)/;
-
- #- store values here according to it.
- push @{$params->{depslist}}, $params->{info}{$name} = {
- name => $name,
- version => $version,
- release => $release,
- size => $size,
- deps => $deps,
- id => $global_id++,
- };
- }
-
- #- compute base flag, consists of packages which are required without
- #- choices of basesystem and are ALWAYS installed. these packages can
- #- safely be removed from requires of others packages.
- if ($params->{info}{basesystem} && ! exists $params->{info}{basesystem}{base}) {
- my @requires_id;
- foreach (split ' ', $params->{info}{basesystem}{deps}) {
- /\|/ or push @requires_id, $_;
- }
- foreach ($params->{info}{basesystem}{id}, @requires_id) {
- $params->{depslist}[$_] and $params->{depslist}[$_]{base} = undef;
- }
- }
- 1;
- }
-
- #- relocate depslist array to use only the most recent packages,
- #- reorder info hashes too in the same manner.
- sub relocate_depslist {
- my ($params) = @_;
- my $relocated_entries = 0;
-
- foreach (@{$params->{depslist} || []}) {
- if ($params->{info}{$_->{name}} != $_) {
- #- at this point, it is sure there is a package that
- #- is multiply defined and this should be fixed.
- #- first correct info hash, then a second pass on depslist
- #- is required to relocate its entries.
- my $cmp_version = version_compare($_->{version}, $params->{info}{$_->{name}}{version});
- if ($cmp_version > 0 ||
- $cmp_version == 0 && version_compare($_->{release}, $params->{info}{$_->{name}}{release}) > 0) {
- $params->{info}{$_->{name}} = $_;
- ++$relocated_entries;
- }
- }
- }
-
- if ($relocated_entries) {
- for (0 .. scalar(@{$params->{depslist}}) - 1) {
- my $pkg = $params->{depslist}[$_];
- $pkg->{source} and next; #- hack to avoid losing local package.
- $params->{depslist}[$_] = $params->{info}{$pkg->{name}};
- }
- }
-
- $relocated_entries;
- }
-
- #- write depslist.ordered file according to info in params.
- sub write_depslist {
- my ($params, $FILE, $min, $max) = @_;
-
- $min > 0 or $min = 0;
- defined $max && $max < scalar(@{$params->{depslist} || []}) or $max = scalar(@{$params->{depslist} || []}) - 1;
- $max >= $min or return;
-
- for ($min..$max) {
- my $pkg = $params->{depslist}[$_];
- printf $FILE "%s-%s-%s %s %s\n", $pkg->{name}, $pkg->{version}, $pkg->{release}, $pkg->{size}, $pkg->{deps};
- }
- 1;
- }
-
- #- fill params provides with files that can be used, it use the format for
- #- a provides file.
- sub read_provides_files {
- my ($params, $FILE) = @_;
-
- local $_;
- while (<$FILE>) {
- chomp;
- my ($k, @v) = split ':';
- $k =~ /^\// and $params->{provides}{$k} ||= undef;
- }
- 1;
- }
-
- #- check if there has been a problem with reading hdlists or rpms
- #- to resolve provides on files.
- #- this is done by checking whether there exists a keys in provides
- #- hash where to value is null (and the key is a file).
- #- give the result as output.
- sub get_unresolved_provides_files {
- my ($params) = @_;
- my ($k, $v, @unresolved);
-
- while (($k, $v) = each %{$params->{provides}}) {
- $k =~ /^\// && ! defined $v and push @unresolved, $k;
- }
- @unresolved;
- }
-
- #- clean everything on provides but keep the files key entry on undef.
- #- this is necessary to try a second pass.
- #- support sense in flags.
- sub keep_only_cleaned_provides_files {
- my ($params) = @_;
- my @keeplist = map { s/\[\*\]//g; $_ } grep { /^\// } keys %{$params->{provides}};
-
- #- clean everything at this point, but keep file referenced.
- $params->{info} = {};
- $params->{depslist} = [];
- $params->{provides} = {}; @{$params->{provides}}{@keeplist} = ();
- }
-
- #- reset params to allow other entries.
- sub clean {
- my ($params) = @_;
-
- $params->{info} = {};
- $params->{depslist} = [];
- $params->{provides} = {};
- }
-
- #- read provides, first is key, after values.
- sub read_provides {
- my ($params, $FILE) = @_;
-
- local $_;
- while (<$FILE>) {
- chomp;
- my ($k, @v) = split ':';
- $params->{provides}{$k} = @v > 0 ? \@v : undef;
- }
- }
-
- #- write provides, first is key, after values.
- sub write_provides {
- my ($params, $FILE) = @_;
- my ($k, $v);
-
- while (($k, $v) = each %{$params->{provides}}) {
- printf $FILE "%s\n", join ':', $k, @{$v || []};
- }
- }
-
- #- read compss, look at DrakX for more info.
- sub read_compss {
- my ($params, $FILE) = @_;
- my $p;
-
- local $_;
- while (<$FILE>) {
- /^\s*$/ || /^#/ and next;
- s/#.*//;
-
- if (/^(\S.*)/) {
- $p = $1;
- } else {
- /(\S+)/;
- $params->{info}{$1} and $params->{info}{$1}{group} = $p;
- }
- }
- 1;
- }
-
- #- write compss.
- sub write_compss {
- my ($params, $FILE) = @_;
- my %p;
-
- foreach (values %{$params->{info}}) {
- $_->{group} or next;
- push @{$p{$_->{group}} ||= []}, $_->{name};
- }
- foreach (sort keys %p) {
- print $FILE $_, "\n";
- foreach (@{$p{$_}}) {
- print $FILE "\t", $_, "\n";
- }
- print $FILE "\n";
- }
- 1;
- }
-
- #- compare a version string, make sure no deadlock can occur.
- #- try to return always a numerical value.
- sub version_compare {
- my ($a, $b) = @_;
- local $_;
-
- while ($a || $b) {
- my ($sb, $sa) = map { $1 if $a =~ /^\W*\d/ ? s/^\W*0*(\d+)// : s/^\W*(\D*)// } ($b, $a);
- $_ = length($sa) <=> length($sb) || $sa cmp $sb and return $_ || 0;
- $sa eq '' && $sb eq '' and return $a cmp $b || 0;
- }
- 0;
- }
-
- #- compability function which should be removed soon, do not use anymore and replace code.
- sub get_packages_installed {
- my ($prefix, $packages, $names, $flags) = @_; $flags ||= [ qw(name version release)];
- my $db = db_open($prefix);
- my $count = db_traverse_tag($db, "name", $names, $flags, sub { my ($p) = @_; push @$packages, $p; });
- db_close($db);
- $count;
- }
- sub get_all_packages_installed {
- my ($prefix, $packages, $flags) = @_; $flags ||= [ qw(name version release)];
- my $db = db_open($prefix);
- my $count = db_traverse($db, $flags, sub { my ($p) = @_; push @$packages, $p; });
- db_close($db);
- $count;
- }
- 1;
-