aboutsummaryrefslogtreecommitdiffstats
path: root/URPM.pm
blob: 88fb9487befde5e8641f702bd272aedeb6db3564 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
package URPM;

use strict;
use DynaLoader;

# different files, but same package
# require them here to avoid dependencies
use URPM::Build;
use URPM::Resolve;
use URPM::Signature;

our @ISA = qw(DynaLoader);
our $VERSION = '1.33';

URPM->bootstrap($VERSION);

sub new {
    my ($class, %options) = @_;
    my $self = bless {
	depslist => [],
	provides => {},
    }, $class;
    $self->{nofatal} = 1 if $options{nofatal};
    $self;
}

sub set_nofatal { $_[0]->{nofatal} = $_[1] }

sub search {
    my ($urpm, $name, %options) = @_;
    my $best;

    #- tries other alternative if no strict searching.
    unless ($options{strict_name}) {
	if ($name =~ /^(.*)-([^\-]*)-([^\-]*)\.([^\.\-]*)$/) {
	    foreach (keys %{$urpm->{provides}{$1} || {}}) {
		my $pkg = $urpm->{depslist}[$_];
		$pkg->fullname eq $name and return $pkg;
	    }
	}
	unless ($options{strict_fullname}) {
	    if ($name =~ /^(.*)-([^\-]*)-([^\-]*)$/) {
		foreach (keys %{$urpm->{provides}{$1} || {}}) {
		    my $pkg = $urpm->{depslist}[$_];
		    my ($n, $v, $r, $a) = $pkg->fullname;
		    $options{src} && $a eq 'src' || $pkg->is_arch_compat or next;
		    "$n-$v-$r" eq $name or next;
		    !$best || $pkg->compare_pkg($best) > 0 and $best = $pkg;
		}
		$best and return $best;
	    }
	    if ($name =~ /^(.*)-([^\-]*)$/) {
		foreach (keys %{$urpm->{provides}{$1} || {}}) {
		    my $pkg = $urpm->{depslist}[$_];
		    my ($n, $v, undef, $a) = $pkg->fullname;
		    $options{src} && $a eq 'src' || $pkg->is_arch_compat or next;
		    "$n-$v" eq $name or next;
		    !$best || $pkg->compare_pkg($best) > 0 and $best = $pkg;
		}
		$best and return $best;
	    }
	}
    }

    unless ($options{strict_fullname}) {
	foreach (keys %{$urpm->{provides}{$name} || {}}) {
	    my $pkg = $urpm->{depslist}[$_];
	    my ($n, undef, undef, $a) = $pkg->fullname;
	    $options{src} && $a eq 'src' || $pkg->is_arch_compat or next;
	    $n eq $name or next;
	    !$best || $pkg->compare_pkg($best) > 0 and $best = $pkg;
	}
    }

    return $best;
}

#- Olivier Thauvin:
#- Returns @$listid, $start .. $end or the whole deplist id
#- according to the given args
sub build_listid {
    my ($urpm, $start, $end, $listid) = @_;

    @{$listid || []} > 0 ? @{$listid} :
        (($start || 0) .. (defined($end) ? $end : $#{$urpm->{depslist}}));
}

sub traverse {
    my ($urpm, $callback) = @_;

    if ($callback) {
	foreach (@{$urpm->{depslist} || []}) {
	    $callback->($_);
	}
    }

    scalar @{$urpm->{depslist} || []};
}

sub traverse_tag {
    my ($urpm, $tag, $names, $callback) = @_;
    my $count = 0; 
    my %names;

    if (@{$names || []}) {
	if ($tag eq 'name') {
	    foreach my $n (@$names) {
		foreach (keys %{$urpm->{provides}{$n} || {}}) {
		    my $p = $urpm->{depslist}[$_];
		    $p->name eq $n or next;
		    $callback and $callback->($p);
		    ++$count;
		}
	    }
	} elsif ($tag eq 'whatprovides') {
	    foreach (@$names) {
		foreach (keys %{$urpm->{provides}{$_} || {}}) {
		    $callback and $callback->($urpm->{depslist}[$_]);
		    ++$count;
		}
	    }
	} else {
	    @names{@$names} = ();
	    if ($tag eq 'whatrequires') {
		foreach (@{$urpm->{depslist} || []}) {
		    if (grep { exists $names{$_} } $_->requires_nosense) {
			$callback and $callback->($_);
			++$count;
		    }
		}
	    } elsif ($tag eq 'whatconflicts') {
		foreach (@{$urpm->{depslist} || []}) {
		    if (grep { exists $names{$_} } $_->conflicts_nosense) {
			$callback and $callback->($_);
			++$count;
		    }
		}
	    } elsif ($tag eq 'group') {
		foreach (@{$urpm->{depslist} || []}) {
		    if (exists $names{$_->group}) {
			$callback and $callback->($_);
			++$count;
		    }
		}
	    } elsif ($tag eq 'triggeredby' || $tag eq 'path') {
		foreach (@{$urpm->{depslist} || []}) {
		    if (grep { exists $names{$_} } $_->files, grep { m!^/! } $_->provides_nosense) {
			$callback and $callback->($_);
			++$count;
		    }
		}
	    } else {
		die "unknown tag";
	    }
	}
    }

    $count;
}

sub add_macro {
    my ($s) = @_;
    #- quote for rpmlib, *sigh*
    $s =~ s/\n/\\\n/g;
    add_macro_noexpand($s);
}

package URPM::Package;
our @ISA = qw(); # help perl_checker

#- debug help for urpmi
sub dump_flags {
    my ($pkg) = @_;
    <<EODUMP;
available:	  ${\($pkg->flag_available)}
base:		  ${\($pkg->flag_base)}
disable_obsolete: ${\($pkg->flag_disable_obsolete)}
installed:	  ${\($pkg->flag_installed)}
requested:	  ${\($pkg->flag_requested)}
required:	  ${\($pkg->flag_required)}
selected:	  ${\($pkg->flag_selected)}
skip:		  ${\($pkg->flag_skip)}
upgrade:	  ${\($pkg->flag_upgrade)}
EODUMP
}

package URPM::Transaction;
our @ISA = qw(); # help perl_checker

package URPM::DB;
our @ISA = qw(); # help perl_checker

1;

__END__

=head1 NAME

URPM - Perl module to manipulate RPM files

=head1 SYNOPSIS

    use URPM;

    # using the local RPM database
    my $db = URPM::DB::open();
    $db->traverse(sub {
	my ($package) = @_; # this is a URPM::Package object
	print $package->filename, "\n";
	# ...
    });

    # loading and parsing a synthesis file
    my $urpm = new URPM;
    $urpm->parse_synthesis("synthesis.sample.cz");
    $urpm->traverse(sub {
	# retrieve all packages from the dependency list
	# ...
    });

=head1 DESCRIPTION

The URPM module allows you to manipulate RPM files, RPM header files and
hdlist files and manage them in memory. It is notably used by the C<urpmi>
utility. It provides four classes : C<URPM>, C<URPM::DB>, C<URPM::Package>,
and C<URPM::Transaction>.

=head2 The URPM class

=over 4

=item URPM->new()

The constructor creates a new, empty URPM object. It's a blessed hash that
contains two fields:

B<depslist> is an arrayref containing the list of depending packages (which are
C<URPM::Package> objects).

B<provides> is an hashref containing as keys the list of items provided by the
URPM object.

If the constructor is called with the arguments C<< nofatal => 1 >>, various
fatal error messages are suppressed (file not found in parse_hdlist() and
parse_synthesis()).

=item URPM::read_config_files()

Force the re-reading of the RPM configuration files.

=item URPM::list_rpm_tag()

Returns a hash containing the key/id values of known rpm tags.

=item URPM::ranges_overlap($range1, $range2 [, $nopromoteepoch])

This utility function compares two version ranges, in order to calculate
dependencies properly. The ranges have roughly the form

    [<|<=|==|=>|>] [epoch:]version[-release]

where epoch, version and release are RPM-style version numbers.

If the optional parameter $nopromoteepoch is true, and if the 2nd range has no
epoch while the first one has one, then the 2nd range is assumed to have an
epoch C<== 0>.

B<Warning>: $nopromoteepoch actually defaults to 1, so if you're going to
pass a variable, make sure undef is treated like 1, not 0.

=item $urpm->parse_synthesis($file, [ callback => sub {...} ])

This method gets the B<depslist> and the B<provides> from a synthesis file
and adds them to the URPM object.

=item $urpm->parse_hdlist($file, %options)

This method loads rpm informations from rpm headers contained in an hdlist
file and adds them to the URPM object. Allowed options are 

    packing => 0 / 1
    callback => sub { ... }
    keep_all_tags => 0 / 1

The return value is a two-element array containing the first and the last id
parsed.

=item $urpm->parse_rpms($files, %options)

This method loads rpm informations from rpm headers and adds them to the URPM
object. The return value is a two-element array containing the first and the
last id parsed.

=item $urpm->parse_rpm($file, %options)

This method gets the B<depslist> and the B<provides> from an RPM file
and adds them to the URPM object. Allowed options are

    packing => 0 / 1
    keep_all_tags => 0 / 1
    callback => sub { ... }

If C<keep_all_tags> isn't specified, URPM will drop all memory-consuming tags
(notably changelogs, filelists, scriptlets).

=item $urpm->search($name, %options)

Search an RPM by name or by part of name in the list of RPMs represented by
this $urpm. The behaviour of the search is influenced by several options:

    strict_name => 0 / 1
    strict_fullname => 0 / 1
    src => 0 / 1

=item $urpm->traverse($callback)

Executes the callback for each package in the depslist, passing a
C<URPM::Package> object as argument the callback.

=item $urpm->traverse_tag($tag, $names, $callback)

$tag may be one of C<name>, C<whatprovides>, C<whatrequires>, C<whatconflicts>,
C<group>, C<triggeredby>, or C<path>.
$names is a reference to an array, holding the acceptable values of the said
tag for the searched variables.
Then, $callback is called for each matching package in the depslist.

=item URPM::verify_rpm($file, %options)

Verifies an RPM file.
Recognized options are:

    db => $urpm_db
    nopgp => 0 / 1
    nogpg => 0 / 1
    nomd5 => 0 / 1
    norsa => 0 / 1
    nodsa => 0 / 1
    nodigests => 0 / 1
    tmp_filename => '...'
    nosignatures => 0 / 1 (equivalent to nopgp = nogpg = norsa = nodsa = 1)

=item $urpm->import_pubkey(%options)

    db => $urpm_db
    root => '...'
    block => '...'
    filename => '...'

=item URPM::spec2srcheader($specfile)

Returns a URPM::Package object containing the header of the source rpm produced
by the evaluation of the specfile whose path is given as argument. All
dependencies stored in this header are exactly the one needed to build the
specfile.

=back

=head2 The URPM::DB class

=over 4

=item open($prefix, $write_perm)

Returns a new C<URPM::DB> object pointing on the local RPM database.

$prefix defaults to C<""> and indicates the RPM DB root directory prefix if
any. (See the B<--root> option to rpm(1)).

$write_perm is a boolean that defaults to false, and that indicates whether
the RPM DB should be open in read/write mode.

=item rebuild($prefix)

Rebuilds the RPM database (like C<rpm --rebuilddb>). $prefix defaults to C<"">.

=item $db->traverse($callback)

Executes the specified callback (a code reference) for each package
in the DB, passing a C<URPM::Package> object as argument the callback.

=item $db->traverse_tag($tag,$names,$callback)

$tag may be one of C<name>, C<whatprovides>, C<whatrequires>, C<whatconflicts>,
C<group>, C<triggeredby>, or C<path>.
$names is a reference to an array, holding the acceptable values of the said
tag for the searched variables.
Then, $callback is called for each matching package in the DB.

=item $db->create_transaction($prefix)

Creates and returns a new transaction (an C<URPM::Transaction> object) on the
specified DB. For $prefix, cf L<open>.

=back

=head2 The URPM::Package class

Most methods of C<URPM::Package> are accessors for the various properties
of an RPM package.

=over 4

=item $package->arch()

Gives the package architecture

=item $package->build_header($fileno)

Writes the rpm header to the specified file ($fileno being an integer).

=item $package->build_info($fileno, [$provides_files])

Writes a line of information in a synthesis file.

=item $package->buildarchs()

=item $package->buildhost()

=item $package->buildtime()

=item $package->changelog_name()

=item $package->changelog_text()

=item $package->changelog_time()

=item $package->compare($evr)

=item $package->compare_pkg($other_pkg)

=item $package->conf_files()

=item $package->conflicts()

=item $package->conflicts_nosense()

=item $package->description()

=item $package->distribution()

=item $package->epoch()

=item $package->excludearchs()

=item $package->exclusivearchs()

=item $package->filename()

The rpm's file name.

=item $package->files()

List of files in this rpm.

=item $package->files_flags()

=item $package->files_gid()

=item $package->files_group()

=item $package->files_md5sum()

=item $package->files_mode()

=item $package->files_mtime()

=item $package->files_owner()

=item $package->files_size()

=item $package->files_uid()

=item $package->flag($name)

=item $package->flag_available()

=item $package->flag_base()

=item $package->flag_disable_obsolete()

=item $package->flag_installed()

=item $package->flag_requested()

=item $package->flag_required()

=item $package->flag_selected()

=item $package->flag_skip()

=item $package->flag_upgrade()

=item $package->free_header()

=item $package->fullname()

Returns a 4 element list: name, version, release and architecture in an array
context. Returns a string NAME-VERSION-RELEASE.ARCH in scalar context.

=item $package->get_tag($tagid)

Returns an array containing values of $tagid. $tagid is the numerical value of
rpm tags. See rpmlib.h. 

=item $package->queryformat($format)

Querying the package like rpm --queryformat do. 

The function calls directly the rpmlib, then use header informations, so it 
silently failed if you use synthesis instead of hdlist/rpm/header files or rpmdb.

=item $package->get_tag_modifiers($tagid)

Return an array of human readable view of tag values. $tagid is the numerical value of rpm tags.

=item $package->group()

=item $package->header_filename()

=item $package->id()

=item $package->installtid()

=item $package->is_arch_compat()

=item $package->license()

=item $package->name()

The rpm's bare name.

=item $package->obsoletes()

=item $package->obsoletes_nosense()

=item $package->obsoletes_overlap($s, [$nopromoteepoch,] [$direction])

=item $package->os()

=item $package->pack_header()

=item $package->packager()

=item $package->payload_format()

=item $package->provides()

=item $package->provides_nosense()

=item $package->provides_overlap($s, [$nopromoteepoch,] [$direction])

=item $package->rate()

=item $package->release()

=item $package->requires()

=item $package->requires_nosense()

=item $package->rflags()

=item $package->set_flag($name, $value)

=item $package->set_flag_base($value)

=item $package->set_flag_disable_obsolete($value)

=item $package->set_flag_installed($value)

=item $package->set_flag_requested($value)

=item $package->set_flag_required($value)

=item $package->set_flag_skip($value)

=item $package->set_flag_upgrade($value)

=item $package->set_id($id)

=item $package->set_rate($rate)

=item $package->set_rflags(...)

=item $package->size()

=item $package->sourcerpm()

=item $package->summary()

=item $package->update_header($filename, ...)

=item $package->upgrade_files()

=item $package->url()

=item $package->vendor()

=item $package->version()

=back

=head2 The URPM::Transaction class

=over 4

=item $trans->set_script_fd($fileno)

Sets the transaction output filehandle.

=item $trans->add($pkg, %options)

Adds a package to be installed to the transaction represented by $trans.
$pkg is an C<URPM::Package> object.

Options are:

    update => 0 / 1 : indicates whether this is an upgrade
    excludepath => [ ... ]

=item $trans->remove($name)

Adds a package to be erased to the transaction represented by $trans.
$name is the name of the package.

=item $trans->check(%options)

Checks that all dependencies can be resolved in this transaction.

Options are:

    translate_message => 0 / 1 (currently ignored.)

In list context, returns an array of problems (an empty array indicates
success).

=item $trans->order()

Determines package order in a transaction set according to dependencies. In
list context, returns an array of problems (an empty array indicates success).

=item $trans->run($data, %options)

Runs the transaction.

$data is an arbitrary user-provided piece of data to be passed to callbacks.

Recognized options are:

    callback_close  => sub { ... }
    callback_inst   => sub { ... }
    callback_open   => sub { ... }
    callback_trans  => sub { ... }
    callback_uninst => sub { ... }
    delta => used for progress callbacks (trans, uninst, inst)
    excludedocs => 0 / 1
    force => 0 / 1
    nosize => 0 / 1
    noscripts => 0 / 1
    oldpackage => 0 / 1
    repackage => 0 / 1
    test => 0 / 1
    translate_message => 1

They roughly correspond to command-line options to rpm(1).

=back

=head2 Macro handling functions

=over

=item loadmacrosfile($filename)

Load the specified macro file. Sets $! if the file can't be read.

=item expand($name)

Expands the specified macro.

=item add_macro($macro_definition)

=item add_macro_noexpand($macro_definition)

Define a macro. For example,

    URPM::add_macro("vendor Mandriva");
    my $vendor = URPM::expand("%vendor");

The 'noexpand' version doesn't expand literal newline characters in the
macro definition.

=item del_macro($name)

Delete a macro.

=item resetmacros()

Destroys macros.

=item setVerbosity($level)

Sets rpm verbosity level. $level is an integer between 2 (RPMMESS_CRIT) and 7
(RPMMESS_DEBUG).

=item rpmErrorString()

=item rpmErrorWriteTo($fd)

=back

=head1 COPYRIGHT

Copyright 2002, 2003, 2004, 2005 MandrakeSoft SA

Copyright 2005, 2006 Mandriva SA

Original author: FranE<ccedil>ois Pons.
Current maintainer: Rafael Garcia-Suarez
<rgarciasuarez@mandriva.com>

This library is free software; you can redistribute it and/or modify it under
the same terms as Perl itself.

=cut