summaryrefslogtreecommitdiff
path: root/Master/tlpkg/TeXLive/TLMedia.pm
blob: d4c7fc305827b379c02d8a2c1c0bf8d641a296b5 (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
# $Id$
# TeXLive::TLMedia.pm - module for accessing TeX Live Media
# Copyright 2008, 2009 Norbert Preining
#
# This file is licensed under the GNU General Public License version 2
# or any later version.

package TeXLive::TLMedia;

my $svnrev = '$Revision$';
my $_modulerevision;
if ($svnrev =~ m/: ([0-9]+) /) {
  $_modulerevision = $1;
} else {
  $_modulerevision = "unknown";
}
sub module_revision {
  return $_modulerevision;
}


use TeXLive::TLConfig;
use TeXLive::TLUtils qw(copy win32 dirname mkdirhier basename download_file
                        merge_into debug ddebug info tlwarn log);
use TeXLive::TLPDB;
use TeXLive::TLWinGoo;

sub new
{
  my ($class, @args) = @_;
  # 0 elements -> -1
  # 1 arg      ->  0
  # even args  ->  uneven
  my $location;
  my %params;
  my $self = { };
  my $tlpdbfile;
  if ($#args % 2) {
    # even number of arguments, the first must be the location
    %params = @args;
    $location = $params{'-location'};
    $tlpdbfile = $params{'-tlpdbfile'};
  } else {
    # odd number of arguments
    $location = shift @args;
  }
  my $media;
  # of no argument is given we assume NET and default URL
  if (!defined($location)) {
    return;
  }
  # no default by itself ...
  # $location = "$TeXLiveURL" unless (defined($location));
  # do media autodetection
  if ($location =~ m,http://|ftp://,) {
    $media = 'NET';
  } else {
    if ($location =~ m,file://*(.*)$,) {
      $location = "/$1";
    }
    if (-d "$location/texmf/web2c") {
      $media = 'DVD';
    } elsif (-d "$location/$Archive") {
      $media = 'CD';
    } else {
      # we cannot find the right type, return undefined, that should
      # make people notice
      return;
    }
  }
  my $tlpdb;
  if (defined($tlpdbfile)) {
    # we got the tlpdb file for a specific location
    debug("Loading TLPDB from $tlpdbfile for $location ...\n");
    $tlpdb = TeXLive::TLPDB->new;
    if ($tlpdb->from_file($tlpdbfile)) {
      # found a positive number of packages
      $tlpdb->root($location);
    } else {
      # couldn't read from tlpdb
      return(undef);
    }
  } else {
    debug("Loading $location/$InfraLocation/$DatabaseName ...\n");
    $tlpdb = TeXLive::TLPDB->new(root => $location);
    return(undef) unless defined($tlpdb);
  }
  my (@all_c, @std_c, @lang_c, @lang_doc_c);
  my (@schemes);
  my %revs;
  foreach my $pkg ($tlpdb->list_packages) {
    my $tlpobj = $tlpdb->{'tlps'}{$pkg};
    $revs{$tlpobj->name} = $tlpobj->revision;
    if ($tlpobj->category eq "Collection") {
      push @all_c, $pkg;
      if ($pkg =~ /collection-lang/) {
        push @lang_c, $pkg;
      } elsif ($pkg =~ /documentation/) {
        if ($pkg =~ /documentation-base/) {
          push @std_c, $pkg;
        } else {
          push @lang_doc_c, $pkg;
        }
      } else {
        push @std_c, $pkg;
      }
    } elsif ($tlpobj->category eq "Scheme") {
      push @schemes, $pkg;
    }
  }
  my (@systems);
  @systems = $tlpdb->available_architectures;
  $self->{'media'} = $media;
  $self->{'location'} = $location;
  $self->{'tlpdb'} = $tlpdb;
  $self->{'release'} = $tlpdb->config_release;
  @{ $self->{'all_collections'} } = @all_c;
  @{ $self->{'std_collections'} } = @std_c;
  @{ $self->{'lang_collections'} } = @lang_c;
  @{ $self->{'lang_doc_collections'} } = @lang_doc_c;
  @{ $self->{'schemes'} } = @schemes;
  @{ $self->{'systems'} } = @systems;
  %{ $self->{'pkgrevs'} } = %revs;
  bless $self, $class;
  return $self;
}

# returns a scalar (0) on error
# returns a reference to a hash with actions on success
sub install_package {
  my ($self, $pkg, $totlpdb, $nopostinstall, $fallbackmedia) = @_;
  my $fromtlpdb = $self->tlpdb;
  my $ret;
  die("TLMedia not initialized, cannot find tlpdb!") unless (defined($fromtlpdb));
  my $tlpobj = $fromtlpdb->get_package($pkg);
  if (!defined($tlpobj)) {
    if (defined($fallbackmedia)) {
      if ($ret = $fallbackmedia->install_package($pkg,$totlpdb, $nopostinstall)) {
        debug("installed $pkg from fallback\n");
        return $ret;
      } else {
        tlwarn("$0: Cannot find package $pkg (in fallback, either)\n");
        return 0;
      }
    } else {
      tlwarn("$0: Cannot find package $pkg\n");
      return 0;
    }
  } else {
    my $container_src_split = $fromtlpdb->config_src_container;
    my $container_doc_split = $fromtlpdb->config_doc_container;
    # get options about src/doc splitting from $totlpdb
    my $opt_src = $totlpdb->option("install_srcfiles");
    my $opt_doc = $totlpdb->option("install_docfiles");
    my $real_opt_doc = $opt_doc;
    my $reloc = 1 if $tlpobj->relocated;
    my $container;
    my @installfiles;
    my $location = $self->location;
    foreach ($tlpobj->runfiles) {
      # s!^!$location/!;
      push @installfiles, $_;
    }
    foreach ($tlpobj->allbinfiles) {
      # s!^!$location/!;
      push @installfiles, $_;
    }
    if ($opt_src) {
      foreach ($tlpobj->srcfiles) {
        # s!^!$location/!;
        push @installfiles, $_;
      }
    }
    if ($real_opt_doc) {
      foreach ($tlpobj->docfiles) {
        # s!^!$location/!;
        push @installfiles, $_;
      }
    }
    my $media = $self->media;
    if ($media eq 'DVD') {
      $container = \@installfiles;
    } elsif ($media eq 'CD') {
      if (-r "$location/$Archive/$pkg.zip") {
        $container = "$location/$Archive/$pkg.zip";
      } elsif (-r "$location/$Archive/$pkg.tar.xz") {
        $container = "$location/$Archive/$pkg.tar.xz";
      } else {
        tlwarn("Cannot find a package $pkg (.zip or .xz) in $location/$Archive\n");
        next;
      }
    } elsif (&media eq 'NET') {
      $container = "$location/$Archive/$pkg.$DefaultContainerExtension";
    }
    $self->_install_package ($container, $reloc, \@installfiles, $totlpdb) 
      || return(0);
    # if we are installing from CD or NET we have to fetch the respective
    # source and doc packages $pkg.source and $pkg.doc and install them, too
    if (($media eq 'NET') || ($media eq 'CD')) {
      # we install split containers under the following conditions:
      # - the container were split generated
      # - src/doc files should be installed
      # (- the package is not already a split one (like .i386-linux))
      # the above test has been removed because it would mean that
      #   texlive.infra.doc.tar.xz
      # will never be installed, and we do already check that there
      # are at all src/doc files, which in split packages of the form 
      # foo.ARCH are not present. And if they are present, than that is fine,
      # too (bin-foobar.win32.doc.tar.xz)
      # - there are actually src/doc files present
      if ($container_src_split && $opt_src && $tlpobj->srcfiles) {
        my $srccontainer = $container;
        $srccontainer =~ s/(\.tar\.xz|\.zip)$/.source$1/;
        $self->_install_package ($srccontainer, $reloc, \@installfiles, $totlpdb) 
          || return(0);
      }
      if ($container_doc_split && $real_opt_doc && $tlpobj->docfiles) {
        my $doccontainer = $container;
        $doccontainer =~ s/(\.tar\.xz|\.zip)$/.doc$1/;
        $self->_install_package ($doccontainer, $reloc, \@installfiles, $totlpdb) 
          || return(0);
      }
      #
      # if we installed from NET/CD and we got a relocatable container
      # make sure that the stray texmf-dist/tlpkg directory is removed
      # in USER MODE that should NOT be done because we keep the information
      # there, but for now do it unconditionally
      if ($tlpobj->relocated) {
        my $reloctree = $totlpdb->root . "/" . $TeXLive::TLConfig::RelocTree;
        my $tlpkgdir = $reloctree . "/" . $TeXLive::TLConfig::InfraLocation;
        my $tlpod = $tlpkgdir .  "/tlpobj";
        TeXLive::TLUtils::rmtree($tlpod) if (-d $tlpod);
        # we try to remove the tlpkg directory, that will succeed only
        # if it is empty. So in normal installations it won't be, but
        # if we are installing a relocated package it is texmf-dist/tlpkg
        # which will be (hopefully) empty
        rmdir($tlpkgdir) if (-d "$tlpkgdir");
      }
    }
    # we don't want to have wrong information in the tlpdb, so remove the
    # src/doc files if they are not installed ...
    if (!$opt_src) {
      $tlpobj->clear_srcfiles;
    }
    if (!$real_opt_doc) {
      $tlpobj->clear_docfiles;
    }
    # if a package is relocatable we have to cancel the reloc prefix
    # before we save it to the local tlpdb
    if ($tlpobj->relocated) {
      $tlpobj->cancel_reloc_prefix;
    }
    # we have to write out the tlpobj file since it is contained in the
    # archives (.tar.xz) but at DVD install time we don't have them
    my $tlpod = $totlpdb->root . "/tlpkg/tlpobj";
    mkdirhier( $tlpod );
    open(TMP,">$tlpod/".$tlpobj->name.".tlpobj") or
      die("Cannot open tlpobj file for ".$tlpobj->name);
    $tlpobj->writeout(\*TMP);
    close(TMP);
    $totlpdb->add_tlpobj($tlpobj);
    $totlpdb->save;
    # compute the return value
    TeXLive::TLUtils::announce_execute_actions("enable", $tlpobj);
    if (!$nopostinstall) {
      # do the postinstallation actions
      #
      # Run the post installation code in the postaction tlpsrc entries
      # in case we are on w32 and the admin did install for himself only
      # we switch off admin mode
      if (win32() && admin() && !$totlpdb->option("w32_multi_user")) {
        non_admin();
      }
      &TeXLive::TLUtils::do_postaction("install", $tlpobj,
        $totlpdb->option("file_assocs"),
        $totlpdb->option("desktop_integration"),
        $totlpdb->option("post_code"));
    }
  }
  return 1;
}

#
# _install_package
# actually does the installation work
# returns 1 on success and 0 on error
#
sub _install_package {
  my ($self, $what, $reloc, $filelistref, $totlpdb) = @_;

  my $media = $self->media;
  my $target = $totlpdb->root;
  my $tempdir = "$target/temp";

  my @filelist = @$filelistref;

  # we assume that $::progs has been set up!
  my $wget = $::progs{'wget'};
  my $xzdec = $::progs{'xzdec'};
  if (!defined($wget) || !defined($xzdec)) {
    tlwarn("_install_package: programs not set up properly, strange.\n");
    return(0);
  }

  if (ref $what) {
    # we are getting a ref to a list of files, so install from DVD
    my $location = $self->location;
    foreach my $file (@$what) {
      # @what is taken, not @filelist!
      # is this still needed?
      my $dn=dirname($file);
      mkdirhier("$target/$dn");
      copy "$location/$file", "$target/$dn";
    }
    # we always assume that copy will work
    return(1);
  } elsif ($what =~ m,\.tar(\.xz)?$,) {
    my $type = defined($1) ? "xz" : "tar";
      
    $target .= "/$TeXLive::TLConfig::RelocTree" if $reloc;

    # this is the case when we install from CD or the NET, or a backup
    #
    # in all other cases we create temp files .tar.xz (or use the present
    # one), xzdec them, and then call tar

    my $fn = basename($what);
    my $pkg = $fn;
    $pkg =~ s/\.tar(\.xz)?$//;
    mkdirhier("$tempdir");
    my $tarfile;
    my $remove_tarfile = 1;
    if ($type eq "xz") {
      my $xzfile = "$tempdir/$fn";
      $tarfile  = "$tempdir/$fn"; $tarfile =~ s/\.xz$//;
      my $xzfile_quote = $xzfile;
      my $tarfile_quote = $tarfile;
      my $target_quote = $target;
      if (win32()) {
        $xzfile =~ s!/!\\!g;
        $xzfile_quote = "\"$xzfile\"";
        $tarfile =~ s!/!\\!g;
        $tarfile_quote = "\"$tarfile\"";
        $target =~ s!/!\\!g;
        $target_quote = "\"$target\"";
      }
      if ($what =~ m,http://|ftp://,) {
        # we are installing from the NET
        # download the file and put it into temp
        if (!download_file($what, $xzfile) || (! -r $xzfile)) {
          tlwarn("Downloading \n");
          tlwarn("   $what\n");
          tlwarn("did not succeed, please retry.\n");
          unlink($tarfile, $xzfile);
          return(0);
        }
      } else {
        # we are installing from CD
        # copy it to temp
        copy($what, $tempdir);
      }
      debug("un-xzing $xzfile to $tarfile\n");
      system("$xzdec < $xzfile_quote > $tarfile_quote");
      if (! -f $tarfile) {
        tlwarn("_install_package: Unpacking $xzfile failed, please retry.\n");
        unlink($tarfile, $xzfile);
        return(0);
      }
      unlink($xzfile);
    } else {
      $tarfile = "$tempdir/$fn";
      if ($what =~ m,http://|ftp://,) {
        if (!download_file($what, $tarfile) || (! -r $tarfile)) {
          tlwarn("Downloading \n");
          tlwarn("   $what\n");
          tlwarn("failed, please retry.\n");
          unlink($tarfile);
          return(0);
        }
      } else {
        $tarfile = $what;
        $remove_tarfile = 0;
      }
    }
    my $ret = TeXLive::TLUtils::untar($tarfile, $target, $remove_tarfile);
    # remove the $pkg.tlpobj, we recreate it anyway again
    unlink ("$target/tlpkg/tlpobj/$pkg.tlpobj") 
      if (-r "$target/tlpkg/tlpobj/$pkg.tlpobj");
    return $ret;
  } else {
    tlwarn("_install_package: Don't know how to install $what\n");
    return(0);
  }
}

#
# remove_package removes a single package with all files (including the
# # tlpobj files) and the entry from the tlpdb.
sub remove_package {
  my ($self, $pkg, $nopostinstall) = @_;
  my $localtlpdb = $self->tlpdb;
  my $tlp = $localtlpdb->get_package($pkg);
  if (!defined($tlp)) {
    tlwarn ("$pkg: package not present, cannot remove\n");
  } else {
    my $currentarch = $self->platform();
    if ($pkg eq "texlive.infra" || $pkg eq "texlive.infra.$currentarch") {
      log ("Not removing $pkg, it is essential!\n");
      return 0;
    }
    # we have to chdir to $localtlpdb->root
    my $Master = $localtlpdb->root;
    chdir ($Master) || die "chdir($Master) failed: $!";
    my @files = $tlp->all_files;
    # also remove the .tlpobj file
    push @files, "tlpkg/tlpobj/$pkg.tlpobj";
    # and the ones from src/doc splitting
    if (-r "tlpkg/tlpobj/$pkg.source.tlpobj") {
      push @files, "tlpkg/tlpobj/$pkg.source.tlpobj";
    }
    if (-r "tlpkg/tlpobj/$pkg.doc.tlpobj") {
      push @files, "tlpkg/tlpobj/$pkg.doc.tlpobj";
    }
    #
    # some packages might be relocated, thus having the RELOC prefix
    # in user mode we just remove the prefix, in normal mode we
    # replace it with texmf-dist
    # since we don't have user mode 
    if ($tlp->relocated) {
      for (@files) {
        s:^$RelocPrefix/:$RelocTree/:;
      }
    }
    #
    # we want to check that a file is only listed in one package, so
    # in case that a file to be removed is listed in another package
    # we will warn and *not* remove it
    my %allfiles;
    for my $p ($localtlpdb->list_packages) {
      next if ($p eq $pkg); # we have to skip the to be removed package
      for my $f ($localtlpdb->get_package($p)->all_files) {
      	$allfiles{$f} = $p;
      }
    }
    my @goodfiles = ();
    my @badfiles = ();
    for my $f (@files) {
      # in usermode we have to add texmf-dist again for comparison
      if (defined($allfiles{$f})) {
        # this file should be removed but is mentioned somewhere, too
        push @badfiles, $f;
      } else {
        push @goodfiles, $f;
      }
    }
    if ($#badfiles >= 0) {
      # warn the user
      tlwarn("The following files should be removed due to the removal of $pkg,\n");
      tlwarn("but are part of another package, too.\n");
      for my $f (@badfiles) {
        tlwarn(" $f - $allfiles{$f}\n");
      }
    }
    #
    # Run only the postaction code thing now since afterwards the
    # files will be gone ...
    if (!$nopostinstall) {
      &TeXLive::TLUtils::do_postaction("remove", $tlp,
        0, # option_file_assocs,
        0, # option_desktop_integration,
        $localtlpdb->option("post_code"));
    }
    # 
    my @removals = &TeXLive::TLUtils::removed_dirs (@goodfiles);
    # now do the removal
    for my $entry (@goodfiles) {
      unlink $entry;
    }
    for my $d (@removals) {
      rmdir $d;
    }
    $localtlpdb->remove_package($pkg);
    TeXLive::TLUtils::announce_execute_actions("disable", $tlp);
    # should we save at each removal???
    # advantage: the tlpdb actually reflects what is installed
    # disadvantage: removing a collection calls the save routine several times
    # still I consider it better that the tlpdb is in a consistent state
    $localtlpdb->save;
    #
    # Run the post installation code in the postaction tlpsrc entries
    # in case we are on w32 and the admin did install for himself only
    # we switch off admin mode
    if (win32() && admin() && !$localtlpdb->option("w32_multi_user")) {
      non_admin();
    }
    #
    # Run the post installation code in the postaction tlpsrc entries
    # the postaction code part cannot be evaluated now since the
    # files are already removed.
    if (!$nopostinstall) {
      &TeXLive::TLUtils::do_postaction("remove", $tlp,
        $localtlpdb->option("file_assocs"),
        $localtlpdb->option("desktop_integration"),
        0);
    }
  }
  return 1;
}


# member access functions
#
sub media { my $self = shift ; return $self->{'media'}; }
sub location { my $self = shift ; return $self->{'location'}; }
sub tlpdb { my $self = shift ; return $self->{'tlpdb'}; }
sub release { my $self = shift ; return $self->{'release'}; }
sub all_collections { my $self = shift; return @{ $self->{'all_collections'} }; }
sub std_collections { my $self = shift; return @{ $self->{'std_collections'} }; }
sub lang_collections { my $self = shift; return @{ $self->{'lang_collections'} }; }
sub lang_doc_collections { my $self = shift; return @{ $self->{'lang_doc_collections'} }; }
sub schemes { my $self = shift; return @{ $self->{'schemes'} }; }
sub systems { my $self = shift; return @{ $self->{'systems'} }; }

# deduce the platform of the referenced media as follows:
# - if the $tlpdb->setting("platform") is there it overrides the detected
#   setting
# - if it is not there call TLUtils::platform()
sub platform {
  # try to deduce the platform
  my $self = shift;
  my $tlpdb = $self->tlpdb;
  if (defined($tlpdb)) {
    my $ret = $tlpdb->setting("platform");
    return $ret if defined $ret;
  }
  # the platform setting wasn't found in the tlpdb, try TLUtils::platform
  return TeXLive::TLUtils::platform();
}

1;
__END__


=head1 NAME

C<TeXLive::TLMedia> -- TeX Live Media module

=head1 SYNOPSIS

  use TeXLive::TLMedia;

  my $tlneo = TeXLive::TLMedia->new('http://www.ctan.org/mirror/tl/');
  my $tlcd  = TeXLive::TLMedia->new('/mnt/tl-cd/');
  my $tldvd = TeXLive::TLMedia->new('/mnt/tl-dvd/');

=head1 DESCRIPTION

missing

=head1 MEMBER ACCESS FUNCTIONS

scalars: media, location, tlpdb, release
lists: all_collections, std_collections, lang_collections, lang_doc_collections,
schemes, systems

=back

=head1 SEE ALSO

The modules L<TeXLive::TLConfig>, L<TeXLive::TLUtils>, L<TeXLive::TLPOBJ>, 
L<TeXLive::TLPDB>, L<TeXLive::TLTREE>.

=head1 AUTHORS AND COPYRIGHT

This script and its documentation were written for the TeX Live
distribution (L<http://tug.org/texlive>) and both are licensed under the
GNU General Public License Version 2 or later.

=cut

### Local Variables:
### perl-indent-level: 2
### tab-width: 2
### indent-tabs-mode: nil
### End:
# vim:set tabstop=2 expandtab: #