summaryrefslogtreecommitdiffstats
path: root/perl-install/install/pkgs.pm
blob: 0dbd387515089229a7b31c03d83ce246e7c04af4 (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
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
package install::pkgs;

use strict;
use feature 'state';

BEGIN {
    # needed before "use URPM"
    mkdir '/etc/rpm';
    symlink "/tmp/stage2/etc/rpm/$_", "/etc/rpm/$_" foreach 'macros.d';
}

use URPM;
use URPM::Resolve;
use URPM::Signature;
use urpm;
use urpm::args;
use urpm::main_loop;
use urpm::select;
use common;
use install::any;
use install::media qw(getFile_ getAndSaveFile_ packageMedium);
use run_program;
use detect_devices;
use log;
use fs;
use fs::any;
use fs::loopback;
use c;

#- lower bound on the left ( aka 90 means [90-100[ )
our %compssListDesc = (
   5 => N_("must have"),
   4 => N_("important"),
   3 => N_("very nice"),
   2 => N_("nice"),
   1 => N_("maybe"),
);

#- TODO BEFORE TODO
#- size and correction size functions for packages.
my $B = 120873;
my $C = 498663; #- does not take hdlist's into account as getAvailableSpace will do it.
my $D = 100000;
sub correctSize { ($B * $_[0] + $C) / $D }
sub invCorrectSize { ($_[0] * $D - $C) / $B }

sub selectedSize {
    my ($packages) = @_;
    my $size = 0;
    my %skip;
    #- take care of packages selected...
    foreach (@{$packages->{depslist}}) {
	if ($_->flag_selected) {
	    $size += $_->size;
	    #- if a package is obsoleted with the same name it should
	    #- have been selected, so a selected new package obsoletes
	    #- all the old package.
	    exists $skip{$_->name} and next; $skip{$_->name} = undef;
	    $size -= $packages->{sizes}{$_->name};
	}
    }
    #- but remove size of package being obsoleted or removed.
    foreach (keys %{$packages->{state}{rejected}}) {
	my ($name) = /(.*)-[^\-]*-[^\-]*$/ or next;
	exists $skip{$name} and next; $skip{$name} = undef;
	$size -= $packages->{sizes}{$name};
    }
    $size;
}

sub size2time {
    my ($x, $max) = @_;
    my $A = 7e9;
    my $limit = min($max * 3 / 4, 9e8);
    if ($x < $limit) {
	$A * $x;
    } else { 
	$x -= $limit;
	my $B = 6;
	my $C = 15e9;
	$B * $x ** 2 + $C * $x + $A * $limit;
    }
}

# Based on Rpmdrake::pkg::extract_header():
sub get_pkg_info {
    my ($p) = @_;

    my $urpm = $::o->{packages};
    my $name = $p->fullname;

    my $medium = URPM::pkg2media($urpm->{media}, $p);
    my ($local_source, %xml_info_pkgs, $description);
    my $dir = urpm::file_from_local_url($medium->{url});
    $local_source = "$dir/" . $p->filename if $dir;

    if (-s $local_source) {
	log::l("getting information from $dir...");
	$p->update_header($local_source) and $description = $p->description;
	log::l("Warning, could not extract header for $name from $medium!") if !$description;
    }
    if (!$description) {
	my $_w = $::o->wait_message(undef, N("Getting package information from XML meta-data..."));
	if (my $xml_info_file = eval { urpm::media::any_xml_info($urpm, $medium, 'info', undef, urpm::download::sync_logger) }) {
	    require urpm::xml_info;
	    require urpm::xml_info_pkg;
	    log::l("getting information from $xml_info_file");
	    my %nodes = eval { urpm::xml_info::get_nodes('info', $xml_info_file, [ $name ]) };
	    goto header_non_available if $@;
	    put_in_hash($xml_info_pkgs{$name} ||= {}, $nodes{$name});
	} else {
	    $urpm->{info}(N("No xml info for medium \"%s\", only partial result for package %s", $medium->{name}, $name));
	}
    }

    if (!$description && $xml_info_pkgs{$name}) {
	$description = $xml_info_pkgs{$name}{description};
    }
  header_non_available:
    $description || N("No description");
}

sub packagesProviding {
    my ($packages, $name) = @_;
    grep { $_->is_arch_compat } URPM::packages_providing($packages, $name);
}

#- search package with given name (and optional ISA) and compatible with current architecture.
#- take the best one found (most up-to-date).
# FIXME: reuse urpmi higher level code instead!
sub packageByName {
    my ($packages, $name) = @_;

    my $basename = $name =~ s/\(x86-..\)$//r;
    my @l = sort { $b->id <=> $a->id } grep { $_->name eq $basename } packagesProviding($packages, $name);

    my $best;
    foreach (@l) {
	if ($best && $best != $_) {
	    if ($best->fullname eq $_->fullname) {
		$best = $_ if $_->flag_installed;
	    } else {
	        $_->compare_pkg($best) > 0 and $best = $_;
            }
	} else {
	    $best = $_;
	}
    }
    $best or log::l("unknown package `$name'");
    $best;
}

sub _is_kernelServer_needed() {
    # forbid selecting kernel-server if not having PAE since PAE support is mandatory for kernel-server:
    return if !detect_devices::has_cpu_flag('pae');
    arch() =~ /i.86/ && detect_devices::isServer();
}

sub _bestKernel_extensions {
    my ($o_match_all_hardware) = @_;

    $::o->{kernel_extension} ? $::o->{kernel_extension} :
    $o_match_all_hardware ? (arch() =~ /i.86/ ? '-desktop586' : '-desktop') :
      detect_devices::is_i586() ? '-desktop586' :
      _is_kernelServer_needed() ? '-server' :
      '-desktop';
}

sub bestKernelPackage {
    my ($packages, $o_match_all_hardware) = @_;

    my @preferred_exts = _bestKernel_extensions($o_match_all_hardware);
    my @kernels = grep { $_ } map { packageByName($packages, "kernel$_-latest") } @preferred_exts;

    if (!@kernels) {
        #- fallback on most generic kernel if the suitable one is not available
        #- (only kernel-desktop586-latest is available on Dual ISO for i586)
        my @fallback_exts = _bestKernel_extensions('force');
        @kernels = grep { $_ } map { packageByName($packages, "kernel$_-latest") } @fallback_exts;
    }

    log::l("bestKernelPackage (" . join(':', @preferred_exts) . "): " . join(' ', map { $_->name } @kernels) . (@kernels > 1 ? ' (choosing the first)' : ''));

    $kernels[0];
}

sub packagesToInstall {
    my ($packages) = @_;
    my @packages;
    foreach (@{$packages->{media}}) {
	!$_->{ignore} or next;
	log::l("examining packagesToInstall of medium $_->{name}");
	push @packages, grep { $_->flag_selected } install::media::packagesOfMedium($packages, $_);
    }
    log::l("found " . scalar(@packages) . " packages to install: " . formatList(5, map { scalar $_->fullname } @packages));

    @packages;
}

sub _packageRequest {
    my ($packages, $pkg) = @_;

    #- check if the same or better version is installed,
    #- do not select in such case.
    $pkg && ($pkg->flag_upgrade || !$pkg->flag_installed) or return;

    #- check for medium selection, if the medium has not been
    #- selected, the package cannot be selected.
    my $medium = packageMedium($packages, $pkg);
    $medium && !$medium->{ignore} or return;

    +{ $pkg->id => 1 };
}

sub packageCallbackChoices {
    my ($urpm, $_db, $_state, $choices, $virtual_pkg_name, $prefered) = @_;
  
    if ($prefered && @$prefered) {
	@$prefered;
    } elsif (my @l = _packageCallbackChoices_($urpm, $choices, $virtual_pkg_name)) {
	@l;
    } else {
	log::l("packageCallbackChoices: default choice ('" . $choices->[0]->name . "') from " . join(",", map { $_->name } @$choices) . " for $virtual_pkg_name");
	$choices->[0];
    }
}

sub _packageCallbackChoices_ {
    my ($urpm, $choices, $virtual_pkg_name) = @_;

    my ($prefer, $_other) = urpm::select::get_preferred($urpm, $choices, $::o->{preferred_packages});
    if (@$prefer) {
	@$prefer;
    } elsif ($virtual_pkg_name eq 'kernel') {
	my $re = join('|', map { "kernel\Q$_-2" } _bestKernel_extensions());
	my @l = grep { $_->name =~ $re } @$choices;
	log::l("packageCallbackChoices: kernel chosen ", join(",", map { $_->name } @l), " in ", join(",", map { $_->name } @$choices));
	@l;
    } elsif ($choices->[0]->name =~ /^kernel-(.*source-|.*-devel-)/) {
	my @l = grep {
	    if ($_->name =~ /^kernel-.*source-stripped-(.*)/) {
		my $version = quotemeta($1);
		find {
		    $_->name =~ /-$version$/ && ($_->flag_installed || $_->flag_selected);
		} $urpm->packages_providing('kernel');
	    } elsif ($_->name =~ /(kernel-.*)-devel-(.*)/) {
		my $kernel = "$1-$2";
		my $p = packageByName($urpm, $kernel);
		$p && ($p->flag_installed || $p->flag_selected);
	    } elsif ($_->name =~ /^kernel-.*source-/) {
		#- hopefully we don't have a media with kernel-source but not kernel-source-stripped nor kernel-.*-devel
		0;
	    } else {
		log::l("unknown kernel-source package " . $_->fullname);
		0;
	    }
	} @$choices;

	log::l("packageCallbackChoices: kernel source chosen ", join(",", map { $_->name } @l), " in ", join(",", map { $_->name } @$choices));

	@l;
    } else {
	();
    }
}

sub skip_packages {
    my ($packages, $skipped_packages) = @_;
    $packages->compute_flags($skipped_packages, skip => 1);
}

sub select_by_package_names {
    my ($packages, $names, $b_base) = @_;

    my @l;
    foreach (@$names) {
	my $p = packageByName($packages, $_) or next;
	push @l, selectPackage($packages, $p, $b_base);
    }
    @l;
}

sub select_by_package_names_or_die {
    my ($packages, $names, $b_base) = @_;

    foreach (@$names) {
	my $p = packageByName($packages, $_) or die "package $_ not found";
	!$p->flag_installed && !$p->flag_selected or next;
	my ($_pkgs, $error) = _selectPackage_with_error($packages, $p, $b_base);
	$error and die N("Some packages requested by %s cannot be installed:\n%s", $_, $error);
    }
}

my @recommended_package_ids;
sub _resolve_requested_and_check {
    my ($packages, $state, $requested) = @_;

    my @l = $packages->resolve_requested($packages->{rpmdb}, $state, $requested,
					 callback_choices => \&packageCallbackChoices, no_recommends => $::o->{no_recommends});

    #- keep track of recommended packages so that theys could be unselected if the "no recommends" option is choosen later:
    if (!is_empty_hash_ref($state->{selected})) {
        my @new_ids = map { $packages->{depslist}[$_]->id } grep { $state->{selected}{$_}{recommended} } keys %{$state->{selected}};
        @recommended_package_ids = uniq(@recommended_package_ids, @new_ids);
    }

    my $error;
    if (find { !exists $state->{selected}{$_} } keys %$requested) {
	my @rejected = urpm::select::unselected_packages($state);
	$error = urpm::select::translate_why_unselected($packages, $state, @rejected);
	log::l("ERROR: selection failed: $error");
    }

    \@l, $error;
}

sub selectPackage {
    my ($packages, $pkg, $b_base) = @_;
    my ($pkgs, $_error) = _selectPackage_with_error($packages, $pkg, $b_base);
    @$pkgs;
}

sub _selectPackage_with_error {
    my ($packages, $pkg, $b_base) = @_;

    my $state = $packages->{state} ||= {};

    $packages->{rpmdb} ||= rpmDbOpen();

    my ($pkgs, $error) = _resolve_requested_and_check($packages, $state, _packageRequest($packages, $pkg) || {});

    if ($b_base) {
	$_->set_flag_base foreach @$pkgs;
    }
    ($pkgs, $error);
}

sub unselectPackage {
    my ($packages, $pkg) = @_;

    #- base packages are not unselectable,
    #- and already unselected package are no more unselectable.
    $pkg->flag_base and return;
    $pkg->flag_selected or return;

    my $state = $packages->{state} ||= {};
    log::l("removing selection on package " . $pkg->fullname);
    my @l = $packages->disable_selected($packages->{rpmdb}, $state, $pkg);
    log::l("   removed selection on package " . $pkg->fullname . "gives " . join(',', map { scalar $_->fullname } @l));
}

sub unselectAllPackages {
    my ($packages) = @_;
    my %keep_selected;
    log::l("unselecting all packages...");
    foreach (@{$packages->{depslist}}) {
	my $to_select = $_->flag_base || $_->flag_installed && $_->flag_selected;
	# unselect recommended packages if minimal install:
	if ($::o->{no_recommends} && member($_->id, @recommended_package_ids)) {
	    log::l("unselecting recommended package " . $_->name);
	    undef $to_select;
	}
	if ($to_select) {
	    #- keep track of packages that should be kept selected.
	    $keep_selected{$_->id} = $_;
	} else {
	    #- deselect all packages except base or packages that need to be upgraded.
	    $_->set_flag_required(0);
	    $_->set_flag_requested(0);
	}
    }
    #- clean state, in order to start with a brand new set...
    $packages->{state} = {};
    _resolve_requested_and_check($packages, $packages->{state}, \%keep_selected);
}


my (@errors, $push_errors);
sub start_pushing_error() {
    $push_errors = 1;
    undef @errors;
}

sub popup_errors() {
    if (@errors) {
	$::o->ask_warn(undef, N("An error occurred:") . "\n\n" . join("\n", @errors));
    }
    undef $push_errors;
}

sub empty_packages {
    my ($o_keep_unrequested_dependencies) = @_;
    my $packages = urpm->new;
    urpm::get_global_options($packages);
    urpm::set_files($packages, '/mnt');

    #- add additional fields used by DrakX.
    $packages->{media} = [];

    urpm::args::set_debug($packages) if $::o->{debug_urpmi};
    $packages->{log} = \&log::l;
    $packages->{info} = \&log::l;
    $packages->{fatal} = sub {
        log::l("urpmi error: $_[1] ($_[0])\n" . common::backtrace());
        $::o->ask_warn(undef, N("A fatal error occurred: %s.", "$_[1] ($_[0])"));
    };
    $packages->{error} = sub {
        log::l("urpmi error: $_[0]");
	if ($push_errors) {
	    push @errors, @_;
	    return;
	}
        $::o->ask_warn(undef, N("An error occurred:") . "\n\n" . $_[0]);
    };
    $packages->{root} = $::prefix;
    $packages->{prefer_vendor_list} = '/etc/urpmi/prefer.vendor.list';
    $packages->{keep_unrequested_dependencies} =
      defined($o_keep_unrequested_dependencies) ? $o_keep_unrequested_dependencies : 1;
    $urpm::args::options{justdb} = $::o->{justdb};
    urpm::set_tune_rpm($packages, $::o->{'tune-rpm'}) if $::o->{'tune-rpm'};
    $::force = 1;
    $packages->{options}{ignoresize} = 1;
    $packages->{options}{downloader} = $::o->{options}{downloader};
    # prevent priority upgrade (redundant for now as $urpm->{root} implies disabling it:
    $packages->{options}{'priority-upgrade'} = undef;
    # log $trans->add() faillure; FIXME: should we override *urpm::msg::sys_log?
    $packages->{debug} = $packages->{debug_URPM} = \&log::l;
    $urpm::args::options{deploops} = $::o->{deploops};
    $packages->{options}{'curl-options'} = $::o->{curl_options} if $::o->{curl_options};

    $packages;
}

sub readCompssUsers {
    my ($file) = @_;

    my $f = common::open_file($file) or log::l("cannot find $file: $!"), return;
    my ($compssUsers, $gtk_display_compssUsers) = eval join('', <$f>);
    if ($@) {
	log::l("ERROR: bad $file: $@");
    } else {
	log::l("compssUsers.pl got: ", join(', ', map { qq("$_->{path}|$_->{label}") } @$compssUsers));
    }
    ($compssUsers, $gtk_display_compssUsers);
}

sub saveCompssUsers {
    my ($packages, $compssUsers) = @_;
    my $flat;
    foreach (@$compssUsers) {
	my %fl = map { ("CAT_$_" => 1) } @{$_->{flags}};
	$flat .= "$_->{label} [icon=xxx] [path=$_->{path}]\n";
	foreach my $p (@{$packages->{depslist}}) {
	    my @flags = $p->rflags;
	    if ($p->rate && any { any { !/^!/ && $fl{$_} } split('\|\|') } @flags) {
		$flat .= sprintf "\t%d %s\n", $p->rate, $p->name;
	    }
	}
    }
    my $urpmidir = install::media::urpmidir();
    output "$urpmidir/compssUsers.flat", $flat;
}

sub setSelectedFromCompssList {
    my ($packages, $rpmsrate_flags_chosen, $min_level, $max_size) = @_;
    $rpmsrate_flags_chosen->{TRUE} = 1; #- ensure TRUE is set
    my $nb = selectedSize($packages);

    my %pkgs;
    foreach my $p (@{$packages->{depslist}}) {
	my @flags = $p->rflags;
	next if
	  !$p->rate || $p->rate < $min_level || 
	  any { !any { /^!(.*)/ ? !$rpmsrate_flags_chosen->{$1} : $rpmsrate_flags_chosen->{$_} } split('\|\|') } @flags;	
	$pkgs{$p->rate} ||= {};
	$pkgs{$p->rate}{$p->id} = 1 if _packageRequest($packages, $p);
    }
    my %pkgswanted;
    foreach my $level (sort { $b <=> $a } keys %pkgs) {
	#- determine the packages that will be selected
	#- the packages are not selected.
	my $state = $packages->{state} ||= {};
	foreach my $p (keys %{$pkgs{$level}}) {
	    $pkgswanted{$p} = 1;
	}
	my ($l, $_error) = _resolve_requested_and_check($packages, $state, \%pkgswanted);
    
	#- this enable an incremental total size.
	my $old_nb = $nb;
	foreach (@$l) {
	    $nb += $_->size;
	}
	if ($max_size && $nb > $max_size) {
	    log::l("disabling selected packages because too big for level $level: $nb > $max_size");
	    $nb = $old_nb;
	    $min_level = $level;
	    $packages->disable_selected($packages->{rpmdb}, $state, @$l);
	    last;
	}
    }
    my @flags = map_each { if_($::b, $::a) } %$rpmsrate_flags_chosen;
    log::l("setSelectedFromCompssList: reached size ", int($nb / 1024/1024), "MB, up to indice $min_level (less than ", formatXiB($max_size), ") for flags ", join(' ', sort @flags));
    log::l("setSelectedFromCompssList: ", join(" ", sort map { $_->name } grep { $_->flag_selected } @{$packages->{depslist}}));
    $min_level;
}

#- useful to know the size it would take for a given min_level/max_size
#- just save the selected packages, call setSelectedFromCompssList, and restore the selected packages
sub saveSelected {
    my ($packages) = @_;
    my $state = delete $packages->{state};
    my @l = @{$packages->{depslist} || []};
    my @flags = map { ($_->flag_requested && 1) + ($_->flag_required && 2) + ($_->flag_upgrade && 4) } @l;
    [ $packages, $state, \@l, \@flags ];
}
sub restoreSelected {
    my ($packages, $state, $l, $flags) = @{$_[0]};
    $packages->{state} = $state;
    mapn { my ($pkg, $flag) = @_;
	   $pkg->set_flag_requested($flag & 1);
	   $pkg->set_flag_required($flag & 2);
	   $pkg->set_flag_upgrade($flag & 4);
         } $l, $flags;
}

sub _inside {
    my ($l1, $l2) = @_;
    my $i = 0;
    return if @$l1 > @$l2;
    foreach (@$l1) {
        my $c;
        while ($c = $l2->[$i++] cmp $_) {
            return if $c == 1 || $i > @$l2;
        }
    }
    1;
}

sub _or_ify {
    my ($first, @other) = @_;
    my @l = split('\|\|', $first);
    foreach (@other) {
        @l = map {
            my $n = $_;
            map { "$_&&$n" } @l;
        } split('\|\|');
    }
    @l;
}
sub _or_clean {
    my ($flags) = @_;
    my @l = split("\t", $flags);
    @l = map { [ sort split('&&') ] } @l;
    my @r;
  B: while (@l) {
        my $e = shift @l;
        foreach (@r, @l) {
            _inside($_, $e) and next B;
        }
        push @r, $e;
    }
    join("\t", map { join('&&', @$_) } @r);
}


sub computeGroupSize {
    my ($packages, $min_level) = @_;
    my (%group, %memo);

    my %or_ify_cache;
    my $or_ify_cached = sub {
	$or_ify_cache{$_[0]} ||= join("\t", _or_ify(split("\t", $_[0])));
    };

    log::l("install::pkgs::computeGroupSize");
    my $time = time();

    my %pkgs_with_same_rflags;
    foreach (@{$packages->{depslist}}) {
	next if !$_->rate || $_->rate < $min_level || $_->flag_available;
	my $flags = join("\t", $_->rflags);
	next if $flags eq 'FALSE';
	push @{$pkgs_with_same_rflags{$flags}}, $_;
    }

    foreach my $raw_flags (keys %pkgs_with_same_rflags) {
	my $flags = $or_ify_cached->($raw_flags);
	my @pkgs = @{$pkgs_with_same_rflags{$raw_flags}};
  
	#- determine the packages that will be selected when selecting $p.
	#- make a fast selection (but potentially erroneous).
	#- installed and upgrade flags must have been computed (see compute_installed_flags).
	my %newSelection;
			 
	my @l2 = map { $_->id } @pkgs;
	my $id;

	    while (defined($id = shift @l2)) {
		exists $newSelection{$id} and next;
		$newSelection{$id} = undef;

		my $pkg = $packages->{depslist}[$id];
		my @deps = map { [ $_, keys %{$packages->{provides}{$_} || {}} ] } $pkg->requires_nosense, $pkg->recommends_nosense;
		foreach (sort { @$a <=> @$b } @deps) { #- sort on number of provides (it helps choosing "b" in: "a" requires both "b" and virtual={"b","c"})
		    my ($virtual, @choices) = @$_;
		    if (@choices <= 1) {
			#- only one choice :)
		    } elsif (find { exists $newSelection{$_} } @choices) {
			@choices = ();
		    } else {
			my @choices_pkgs = map { $packages->{depslist}[$_] } @choices;
			if (find { $_->flag_available } @choices_pkgs) {
			    @choices = (); #- one package is already selected (?)
			} else {
			    @choices = map { $_->id } packageCallbackChoices($packages, undef, undef, \@choices_pkgs, $virtual, undef);
			}
		    }
		    push @l2, @choices;
		}
	    }

	foreach (keys %newSelection) {
	    my $p = $packages->{depslist}[$_] or next;
	    next if $p->flag_selected; #- always installed (accounted in system_size)
	    my $s = $group{$p->name} || $or_ify_cached->(join("\t", $p->rflags));
	    my $m = "$flags\t$s";
	    $group{$p->name} = ($memo{$m} ||= _or_clean($m));
	}
    }
    my (%sizes, %pkgs);
    while (my ($k, $v) = each %group) {
	my $pkg = packageByName($packages, $k) or next;
	push @{$pkgs{$v}}, $k;
	$sizes{$v} += $pkg->size - $packages->{sizes}{$pkg->name};
    }
    log::l("install::pkgs::computeGroupSize took: ", formatTimeRaw(time() - $time));
    log::l(sprintf "%s %dMB %s", $_, $sizes{$_} / sqr(1024), join(',', @{$pkgs{$_}})) foreach keys %sizes;
    \%sizes, \%pkgs;
}


sub _openInstallLog() {
    my $f = "$::prefix/root/drakx/install.log";
    open(my $LOG, ">> $f") ? log::l("opened $f") : log::l("Failed to open $f. No install log will be kept."); #-#
    CORE::select((CORE::select($LOG), $| = 1)[0]);
    URPM::rpmErrorWriteTo(fileno $LOG);
    $LOG;
}

sub _rebuild_RPM_DB() {
    if (my $pid = fork()) {
	waitpid $pid, 0;
	$? & 0xff00 and die "rebuilding of rpm database failed";
    } else {
	log::l("rebuilding rpm database");
	my $rebuilddb_dir = "$::prefix/var/lib/rpmrebuilddb.$$";
	if (-d $rebuilddb_dir) {
	    log::l("removing stale directory $rebuilddb_dir");
	    rm_rf($rebuilddb_dir);
	}

	if (!URPM::DB::rebuild($::prefix)) {
	    log::l("rebuilding of rpm database failed: " . URPM::rpmErrorString());
	    c::_exit(2);
	}

	c::_exit(0);
    }
}

sub rpmDbOpen {
    my ($b_rebuild_if_needed) = @_;

    clean_rpmdb_shared_regions();

    my $need_rebuild = $b_rebuild_if_needed && !URPM::DB::verify($::prefix);

    _rebuild_RPM_DB() if $need_rebuild;

    my $db;
    if ($db = URPM::DB::open($::prefix)) {
	log::l("opened rpm database for examining existing packages");
    } else {
	log::l("unable to open rpm database, using empty rpm db emulation");
	$db = new URPM;
    }

    $db;
}

sub clean_rpmdb_shared_regions() {
    unlink glob("$::prefix/var/lib/rpm/__db.*");
}

sub open_rpm_db_rw() {
    clean_rpmdb_shared_regions();
    my $db = URPM::DB::open($::prefix, 1);
    $db and log::l("opened rpmdb for writing in $::prefix");
    $db;
}

sub cleanOldRpmDb() {
    my $failed;

    foreach (qw(Basenames Conflictname Group Name Packages Providename Requirename Triggername)) {
	-s "$::prefix/var/lib/rpm/$_" or $failed = 'failed';
    }
    #- rebuilding has been successfull, so remove old rpm database if any.
    #- once we have checked the rpm4 db file are present and not null, in case
    #- of doubt, avoid removing them...
    unless ($failed) {
	log::l("rebuilding rpm database completed successfully");
	foreach (qw(conflictsindex.rpm fileindex.rpm groupindex.rpm nameindex.rpm packages.rpm
                    providesindex.rpm requiredby.rpm triggerindex.rpm)) {
	    -e "$::prefix/var/lib/rpm/$_" or next;
	    log::l("removing old rpm file $_");
	    rm_rf("$::prefix/var/lib/rpm/$_");
	}
    }
}

sub selectPackagesAlreadyInstalled {
    my ($packages) = @_;

    log::l("computing installed flags and size of installed packages");

    $packages->compute_installed_flags($packages->{rpmdb});

    my %sizes;
    $packages->{rpmdb}->traverse(sub {
	my ($p) = @_;      
	$sizes{$p->name} ||= 0;
	$sizes{$p->name} += $p->size;
    });
    $packages->{sizes} = \%sizes;
}

sub selectPackagesToUpgrade {
    my ($packages, $o_medium) = @_;

    log::l("selecting packages to upgrade");

    my $state = $packages->{state} ||= {};
    $state->{selected} = {};

    my %selection;
    $packages->request_packages_to_upgrade($packages->{rpmdb}, $state, \%selection,
					   requested => undef,
					   $o_medium ? (start => $o_medium->{start}, end => $o_medium->{end}) : (),
					  );
    log::l("selected pkgs to upgrade: " . join(' ', map { $packages->{depslist}[$_]->name } keys %selection));

    log::l("resolving dependencies...");
    _resolve_requested_and_check($packages, $state, \%selection);
    log::l("...done");
    log::l("finally selected pkgs: ", join(" ", sort map { $_->name } grep { $_->flag_selected } @{$packages->{depslist}}));
}

sub _filter_packages {
    my ($retry, $packages, @packages) = @_;
    grep {
        if ($_->flag_installed || packageMedium($packages, $_)->{ignore}) {
            if ($_->name eq 'mga-rpm-summary' && $_->flag_installed) {
                install::pkgs::setup_rpm_summary_translations();
            }
            $_->free_header;
          0;
        } else {
            log::l("failed to install " . $_->fullname . " (will retry)") if !$retry;
            1;
        }
    } @packages;
}

sub install {
    my ($isUpgrade, $toInstall, $packages, $callback) = @_;
    my %packages;

    delete $packages->{rpmdb}; #- make sure rpmdb is closed before.
    #- avoid potential problems with rpm db personality change
    clean_rpmdb_shared_regions();

    return if !@$toInstall;

    #- for root loopback'ed /boot
    my $loop_boot = fs::loopback::prepare_boot();

    #- first stage to extract some important information
    #- about the selected packages.
    my ($total, $nb) = (0, 0);
    foreach my $pkg (@$toInstall) {
	$packages{$pkg->id} = $pkg;
	$nb++;
	$total += $pkg->size; #- do not correct for upgrade!
    }

    log::l("install::pkgs::install $::prefix");
    log::l("install::pkgs::install the following: ", join(" ", map { $_->name } values %packages));

    URPM::read_config_files();
    # force loading libnss*
    getgrent();
    URPM::add_macro(join(' ', '__dbi_other', URPM::expand('%__dbi_other'), 'nofsync'));
    my $LOG = _openInstallLog();

    $packages->{log} = $packages->{info} = $packages->{print} = sub {
        print $LOG "$_[0]\n";
    };

    #- do not modify/translate the message used with installCallback since
    #- these are keys during progressing installation, or change in other
    #- place (install::steps_gtk.pm,...).
    $callback->($packages, user => undef, install => $nb, $total);

    my $exit_code = _install_raw($packages, $isUpgrade, $callback, $LOG, 0);

    log::l("closing install.log file");
    close $LOG;

    # prevent urpmi from trying to install them again (CHECKME: maybe uneeded):
    $packages->{state} = {};

    clean_rpmdb_shared_regions(); #- workaround librpm which is buggy when using librpm rooted and the just installed rooted library

    fs::loopback::save_boot($loop_boot);

    $exit_code;
}

sub _unselect_package {
    my ($packages, $pkg) = @_;
    #- update flag associated to package.
    $pkg->set_flag_installed(1);
    $pkg->set_flag_upgrade(0);
    #- update obsoleted entry.
    my $rejected = $packages->{state}{rejected};
    foreach (keys %$rejected) {
        if (delete $rejected->{$_}{closure}{$pkg->fullname}) {
            %{$rejected->{$_}{closure}} or delete $rejected->{$_};
        }
    }
}

sub is_package_installed {
    my ($db, $pkg) = @_;
    my $check_installed;
    $db->traverse_tag('name', [ $pkg->name ], sub {
                          my ($p) = @_;
                          $check_installed ||= $pkg->compare_pkg($p) == 0;
                      });
    return $check_installed;
}

sub _install_raw {
    my ($packages, $_isUpgrade, $callback, $LOG, $noscripts) = @_;

    # prevent warnings in install's logs:
    local $ENV{LC_ALL} = 'C';

    # let's be urpmi's compatible:
    local $packages->{options}{noscripts} = $noscripts;
    # leaks a fd per transaction (around ~100 for a typically gnome install, see #49097):
    # bug present in 2009.0, 2008.1, 2008.0, ... (probably since r11141 aka when switching to rpm-4.2 in URPM-0.83)
    local $packages->{options}{script_fd} = fileno $LOG;

    start_pushing_error();

    log::l("rpm transactions start");

    my ($is_installing, $verify_just_closed);
    my $exit_code = urpm::main_loop::run($packages, $packages->{state}, undef, undef, {
        open_helper => sub {
            &$callback;
            $is_installing = 0;
        },
        verify => $callback,
        close_helper => sub {
				my ($db, $packages, $_type, $id) = @_;
				&$callback;
				return if !$is_installing; # don't check if it's installed if it's being verified
				my $pkg = defined $id && $packages->{depslist}[$id] or return;
				print $LOG $pkg->fullname . "\n";
				my $check_installed = is_package_installed($db, $pkg);
                                if ($pkg->name eq 'mga-rpm-summary' && $check_installed) {
                                    install::pkgs::setup_rpm_summary_translations();
                                }

				if ($check_installed) {
                                    _unselect_package($packages, $pkg);
                                } else {
                                    log::l($pkg->name . " not installed, " . URPM::rpmErrorString());
                                }
        },
        inst => sub {
            &$callback;
            $is_installing = 1;
        },
        trans => $callback,
        # FIXME: implement already_installed_or_not_installable
        bad_signature => sub {
            my ($msg, $msg2) = @_;
            $msg =~ s/:$/\n\n/m; # FIXME: to be fixed in urpmi after 2008.0 (sic!)
            log::l($msg);
            log::l($msg2);
            return 0 if $packages->{options}{auto};
            state $do_not_ask;
            state $answer;
            return $answer if $do_not_ask;
            $answer = $::o->ask_from_({ messages => "$msg\n\n$msg2" }, [ 
                { val => \$do_not_ask,
                  type => 'bool', text => N("Do not ask again"),
              },
            ]);
        },
        copy_removable => sub {
            my ($medium) = @_;
            $::o->ask_change_cd($medium);
        },
        is_canceled => sub {
            return $install::pkgs::cancel_install;
        },
        trans_error_summary => sub {
            my ($nok, $errors) = @_;
            log::l($nok . " installation transactions failed");
            log::l(join("\n", @$errors));
            if (!$packages->{options}{auto}) {
                $::o->ask_warn(N("Error"), N("%d installation transactions failed", $nok) . "\n\n" .
                                 N("Installation of packages failed:") . "\n\n" . join("\n", @$errors));
            }
        },
        completed => sub {
            if (!$packages->{options}{auto}) {
                popup_errors();
            }
        },
        message => sub {
            my ($title, $message) = @_;
            log::l($message);
            $::o->ask_warn($title, $message);
        },
        ask_yes_or_no => sub {
            my ($title, $msg) = @_;
            log::l($msg);
            $::o->ask_yesorno($title, $msg);
        },
        ask_for_bad_or_missing => sub {
            my ($_title, $msg) = @_;
            log::l($msg);
            state $do_not_ask;
            state $answer;
            return $answer if $do_not_ask;
            $answer = $::o->ask_from_({ messages => $msg }, [
                { val => \$do_not_ask, type => 'bool', text => N("Do not ask again"),
              },
            ]);
        },
        # Uneeded callbacks: success_summary
    });
          
    log::l("transactions done, now trying to close still opened fd; exit code=$exit_code");
 
    $exit_code;
}

sub upgrade_by_removing_pkgs {
    my ($packages, $callback, $extension, $upgrade_name) = @_;

    my $upgrade_data;
    if ($upgrade_name) {
	my @l = glob("$ENV{SHARE_PATH}/upgrade/$upgrade_name*");
	@l == 0 and log::l("upgrade_by_removing_pkgs: no special upgrade data");
	@l > 1 and log::l("upgrade_by_removing_pkgs: many special upgrade data (" . join(' ', @l) . ")");
	$upgrade_data = $l[0];
    }
    
    log::l("upgrade_by_removing_pkgs (extension=$extension, upgrade_data=$upgrade_data)");

    #- put the release file in /root/drakx so that we continue an upgrade even if the file has gone
    my $f = common::release_file($::prefix);
    if (dirname($f) eq '/etc') {
	output_p("$::prefix/root/drakx/" . basename($f) . '.upgrading', cat_("$::prefix$f"));
    }
    my $busy_var_tmp = "$::prefix/var/tmp/ensure-rpm-does-not-remove-this-dir";
    touch($busy_var_tmp);

    if ($upgrade_data) {
	foreach (glob("$upgrade_data/pre.*")) {
	    my $f = '/tmp/' . basename($_);
	    cp_af($_, "$::prefix$f");
	    run_program::rooted($::prefix, $f);
	    unlink "$::prefix$f";
	}
    }

    my @was_installed = _remove_pkgs_to_upgrade($packages, $callback, $extension);

    {
	my @restore_files = qw(/etc/passwd /etc/group /etc/ld.so.conf);
	foreach (@restore_files) {
	    rename "$::prefix$_.rpmsave", "$::prefix$_";
	}
	fs::any::create_minimal_files();
	unlink $busy_var_tmp;
    }

    my %map = map {
	chomp;
	my ($name, @new) = split;
	$name => \@new;
    } $upgrade_data ? cat_("$upgrade_data/map") : ();

    log::l("upgrade_by_removing_pkgs: map $upgrade_data/map gave " . (int keys %map) . " rules");

    my $log;
    my @to_install = uniq(map { 
	$log .= " $_=>" . join('+', @{$map{$_}}) if $map{$_};
	$map{$_} ? @{$map{$_}} : $_;
    } @was_installed);
    log::l("upgrade_by_removing_pkgs special maps:$log");
    log::l("upgrade_by_removing_pkgs: wanted packages: ", join(' ', sort @to_install));

    @to_install;
}

sub removed_pkgs_to_upgrade_file() { "$::prefix/root/drakx/removed_pkgs_to_upgrade" }

sub _remove_pkgs_to_upgrade {
    my ($packages, $callback, $extension) = @_;

    my @to_remove;
    my @was_installed;
    {
	$packages->{rpmdb} ||= rpmDbOpen();
	$packages->{rpmdb}->traverse(sub {
	    my ($pkg) = @_;
	    if ($pkg->release =~ /$extension$/) {
		push @was_installed, $pkg->name;
		push @to_remove, scalar $pkg->fullname;
	    }
	});
    }
    if (-e removed_pkgs_to_upgrade_file()) {
	log::l("removed_pkgs_to_upgrade: using saved installed packages list ", removed_pkgs_to_upgrade_file());
	@was_installed = chomp_(cat_(removed_pkgs_to_upgrade_file()));
    } else {
	log::l("removed_pkgs_to_upgrade: saving (old) installed packages in ", removed_pkgs_to_upgrade_file());
	output_p(removed_pkgs_to_upgrade_file(), map { "$_\n" } @was_installed);
    }

    delete $packages->{rpmdb}; #- make sure rpmdb is closed before.

    _remove(\@to_remove, $callback, noscripts => 1);

    @was_installed;
}

sub remove_marked_ask_remove {
    my ($packages, $callback) = @_;

    my @to_remove = keys %{$packages->{state}{ask_remove}} or return;
    
    delete $packages->{rpmdb}; #- make sure rpmdb is closed before.

    #- we are not checking depends since it should come when
    #- upgrading a system. although we may remove some functionalities ?

    _remove(\@to_remove, $callback, force => 1);

    delete $packages->{state}{ask_remove}{$_} foreach @to_remove;
}

sub _remove_raw {
    my ($to_remove, $callback, %run_transaction_options) = @_;

    log::l("removing: " . join(' ', @$to_remove));

    URPM::read_config_files();
    URPM::add_macro(URPM::expand('__dbi_other %__dbi_other nofsync'));

    my $db = open_rpm_db_rw() or die "error opening RPM database: ", URPM::rpmErrorString();
    my $trans = $db->create_transaction;

    #- stuff remove all packages that matches $p, not a problem since $p has name-version-release format.
    $trans->remove($_) foreach @$to_remove;

    $callback->($db, user => undef, remove => scalar @$to_remove);

    $trans->run(undef, %run_transaction_options, callback_uninst => $callback);
}
sub _remove {
    my ($_to_remove, $_callback, %run_transaction_options) = @_;

    my @pbs = &_remove_raw;
    if (@pbs && !$run_transaction_options{noscripts}) {
	$run_transaction_options{noscripts} = 1;
	@pbs = &_remove_raw;
    }
    if (@pbs) {
	die "removing of old rpms failed:\n  ", join("\n  ", @pbs);
    }
}

sub setup_rpm_summary_translations() {
    my @domains = qw(rpm-summary-contrib rpm-summary-devel rpm-summary-main);
    push @::textdomains, @domains;
    foreach (@domains) {
	Locale::gettext::bind_textdomain_codeset($_, 'UTF-8');
	Locale::gettext::bindtextdomain($_, "$::prefix/usr/share/locale");
    }
}

sub selected_leaves {
    my ($packages) = @_;
    my $provides = $packages->{provides};

    my @l = grep { $_->flag_requested || $_->flag_installed } @{$packages->{depslist}};

    my %required_ids;
    foreach my $pkg (@l) {
	foreach my $req ($pkg->requires_nosense) {
	    my $h = $provides->{$req} or next;
	    my @provides = my ($provide) = keys %$h;
	    @provides == 1 or next;
	    if ($provide != (exists $required_ids{$pkg->id} ? $required_ids{$pkg->id} : $pkg->id)) {
#		log::l($packages->{depslist}[$provide]->name . " is not a leaf because required by " . $pkg->name . " (through require $req)"); 
		#- $pkg requires $req, provided by $provide, so we can skip $provide
		$required_ids{$provide} = $pkg->id;
	    }
	}
    }
    [ map { $_->name } grep { ! exists $required_ids{$_->id} } @l ];    
}

1;