aboutsummaryrefslogtreecommitdiffstats
path: root/gendistrib
blob: dda99a0f37dad9eefd3b599faf02931d96c69fb4 (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
#!/usr/bin/perl

(our $VERSION) = q$Id$ =~ /(\d+\.\d+)/;

use strict;
use Cwd;
use URPM;
use URPM::Build;
use Getopt::Long;
use MDV::Distribconf::Build;
use MDV::Packdrakeng;
use Pod::Usage;

my $urpm = new URPM;
my $tempdir = -d $ENV{TMPDIR} ? $ENV{TMPDIR} : -d "$ENV{HOME}/tmp" ? "$ENV{HOME}/tmp" : "/tmp";
my $headers_dir = $tempdir . "/.build_hdlist";

sub usage () {
    pod2usage({ -verbose => 1 });
    exit 0;
}

my %urpmfiles;

GetOptions(
    'blind' => \my $blind,
    'compss=s' => \$urpmfiles{compss},
    'depslist=s' => \$urpmfiles{depslist},
    'destdir=s' => \my $destdir,
    'hdlists=s' => \$urpmfiles{hdlists},
    'headersdir=s' => \$headers_dir,
    'help|h' => \&usage,
    'mediacfg=s' => \$urpmfiles{mediacfg},
    'nobadrpm' => \my $dontdie,
    'nochkdep' => \my $nochkdep,
    'noclean' => \my $noclean,
    'noemptymedia' => \my $noemptymedia,
    'nomd5sum' => \my $nomd5sum,
    'nomediainfo' => \my $nomediainfo,
    'provides=s' => \$urpmfiles{provides},
    'skipmissingdir' => \my $skipmissingdir,
    's' => \my $nooutput,
    'v|version' => sub { warn "$0 version $VERSION\n"; exit 0 },
);

(my @root = grep { $_ } @ARGV) > 0 or usage();

my $distrib = MDV::Distribconf::Build->new($root[0]);

$distrib->loadtree or die "$root[0] does not seem to be a distribution tree\n";

if (defined($urpmfiles{mediacfg})) {
    $distrib->parse_mediacfg($urpmfiles{mediacfg}) or die "Can't read $urpmfiles{mediacfg}\n";
} elsif (defined($urpmfiles{hdlists})) {
    $distrib->parse_hdlists($urpmfiles{hdlists}) or die "Can't read $urpmfiles{hdlists}\n";
} else {
    $distrib->parse_mediacfg || $distrib->parse_hdlists or die "Can't read the distrib config\n";
}

my $destinfodir = $destdir ?
    $destdir . '/' . $distrib->getpath(undef, "infodir") :
    $distrib->getfullpath(undef, "infodir");

my %default_urpmfiles = (
    depslist => $destinfodir . "/depslist.ordered",
    provides => $destinfodir . "/provides",
    compss =>   $destinfodir . "/compss",
    version =>  $destdir ?
        $destdir . $distrib->getpath(undef, "VERSION") :
        $distrib->getfullpath(undef, "VERSION"),
    md5sum =>   $destinfodir . "/MD5SUM",
);

while (my ($k, $v) = each(%default_urpmfiles)) {
    $urpmfiles{$k} ||= $v;
}

$distrib->check(\*STDERR) unless $nooutput;

my @hdlists;
my @media_missing_dirs;
foreach ($distrib->listmedia) {
    $distrib->getvalue($_, 'askmedia') || $distrib->getvalue($_, 'suppl') and next;

    if (! -d ($distrib->getfullpath($_, 'path'))) {
        if ($skipmissingdir) {
            printf(STDERR
                "Skipping missing media %s\n",
                $distrib->getpath($_, 'path')
            ) unless $nooutput;
        } else {
            # delaying error report to report all errors, not the only first
            push(@media_missing_dirs, $_);
        }
        next;
    }

    push @hdlists, {
        synthesis => $destdir ?
            $destdir . '/' . $distrib->getpath($_, 'synthesis') :
            $distrib->getfullpath($_, 'synthesis'),
        hdlist => $destdir ?
            $destdir . '/' .$distrib->getpath($_, 'hdlist') :
            $distrib->getfullpath($_, 'hdlist'),
        dir => $distrib->getpath($_, 'path'),
        descr => $distrib->getvalue($_, 'name'),
        mediainfo => $destdir ?
            $destdir . '/' . $distrib->getpath(undef, 'infodir') :
            $distrib->getfullpath(undef, 'infodir'),
        thismediainfo => ($destdir ?
            $destdir . '/' . $distrib->getpath($_, 'path') :
            $distrib->getfullpath($_, 'path')) . "/media_info",
        synthesis2 => ($destdir ?
            $destdir . '/' . $distrib->getpath($_, 'path') :
            $distrib->getfullpath($_, 'path')) . "/media_info/synthesis.hdlist.cz",
        hdlist2 => ($destdir ?
            $destdir . '/' . $distrib->getpath($_, 'path') :
            $distrib->getfullpath($_, 'path')) . "/media_info/hdlist.cz",
        md5sum => ($destdir ?
            $destdir . '/' . $distrib->getpath($_, 'path') :
            $distrib->getfullpath($_, 'path')) . "/media_info/MD5SUM",
    };
}

#- die if there are unspecified missing directories
if (@media_missing_dirs) {
    foreach my $media (@media_missing_dirs) {
        printf(STDERR
            "Missing dir '%s' for media '%s'\n",
            $distrib->getpath($media, 'path'),
            $distrib->getvalue($media, 'name')
        ) unless $nooutput;
    }
    die "Stopping because dirs are missing, specify --skipmissingdir to ignore\n";
}

# Creating destination directory, doing it early,
# don't die after 30 minutes of rpm parsing
if (!-d $destinfodir) {
    mkdir $destinfodir, 0755
        or die qq(Can't create directory "$destinfodir": $!\n);
}

foreach my $e (@hdlists) {
    for my $d (qw(mediainfo thismediainfo)) {
	if (! -d $e->{$d}) {
	    mkdir $e->{$d}, 0755
		or die qq(Can't create directory "$e->{$d}": $!\n);
	}
    }
}

sub clean_cache {
    unless ($noclean) {
	system($ENV{LD_LOADER} ? $ENV{LD_LOADER} : @{[]}, "rm", "-rf", $headers_dir);
	mkdir $headers_dir
	    or die qq(Can't create directory "$headers_dir": $!\n);
    }
}

clean_cache();

foreach (0..$#hdlists) {
    my $e = $hdlists[$_];
    my $r;

    #- try to find the right repository where can be found the directory
    #- listed in the hdlist file.
    #- if the number of roots is equal to the number of media, assume one
    #- media per root, else try to find a valid root containing the media.
    $r ||= $root[0];
    if (scalar(@hdlists) == scalar(@root)) {
	$r = $root[$_];
    } else {
	foreach (@root) {
	    -d "$_/$e->{dir}" and $r = $_, last;
	}
    }

    #- fake build of architecture dependent directory.
    my @files;
    if ($e->{dir} =~ /%{ARCH}/) {
	foreach my $arch (qw(i686 i586 i486 i386 k8 k7 k6 amd64 amd32 x86_64 x86_32 ia64 ia32
                             ppc sparc sparc32 sparc64 alpha noarch)) {
	    my $dir = $e->{dir};
	    $dir =~ s|%{ARCH}|$arch|g;
	    push @files, glob("$r/$dir/*.$arch.rpm");
	}
    } else {
	push @files, glob("$r/$e->{dir}/*.rpm");
    }
    @files or do {
        print STDERR "unable to find rpm files in $e->{dir}\n" unless $nooutput;
        next;
    };

    print STDERR "parsing rpm files in directory $r/$e->{dir}\n" unless $nooutput;
    my @headers = $urpm->parse_rpms_build_headers(
	dir  => $headers_dir,
	rpms => \@files,
	dontdie => $dontdie,
	silent => $nooutput,
    );
    # TODO if @headers is empty ?
    $e->{headers} = \@headers;

    if (!$blind) {
        # checking if hdlist rebuild is need
        print STDERR "Checking if hdlist need to be rebuild for media $e->{descr}\n" unless $nooutput;
        if(!compare_headers_with_hdlist($e->{hdlist}, @headers)) {
            $e->{noneedrebuild} = 1;
            print "No\n" unless $nooutput;
        } else {
            print "Yes\n" unless $nooutput;
        }
    }
}

# return 1 if differ, 0 otherwise
sub compare_headers_with_hdlist {
    my ($hdlist, @headers) = @_;
    if (my $pack = MDV::Packdrakeng->open(archive => $hdlist)) {
        my %exists_headers;
        $exists_headers{$_} = 0 foreach(@headers);
        my (undef, $files, undef) = $pack->getcontent();
        foreach my $file (@{$files || []}) {
            if (exists($exists_headers{$file})) {
                # TODO checking somethings else that name
                delete($exists_headers{$file});
            } else {
                # one file is in hdlist, not in our headers => differ
                return 1;
            }
        }
        # if the same files are in hdlist, and headers list,
        # nothing left
        if (keys %exists_headers) {
            return 1;
        }
    } else {
        # no valid hdlist, it differ for sure !
        return 1;
    }
    return 0; # no diff
}

if ($noemptymedia) {
    foreach my $e (@hdlists) {
        $e->{headers} or die "Empty media were found, stopping\n";
    }
}

#- clean everything to start second pass.
print STDERR "clean data for second pass\n" unless $nooutput;
$urpm->unresolved_provides_clean;

#- temporary file where to build hdlists
my $temp_hdlist = $tempdir . '/hdlist' . $$;
foreach (0..$#hdlists) {
    my $e = $hdlists[$_];

    if ($e->{headers}) { # We have rpms in this media

    print STDERR qq(parsing headers for "$e->{descr}"\n) unless $nooutput;
    my ($start, $end) = $urpm->parse_headers(dir     => $headers_dir,
					     headers => $e->{headers},
				             dontdie => $dontdie,
					     silent  => $nooutput);

    print STDERR "computing deps\n" unless $nooutput;
    $urpm->compute_deps;

    if ($e->{noneedrebuild}) {
        # No media change, nothing to write
        next;
    }

    print STDERR qq(building hdlist for medium "$e->{descr}"\n) unless $nooutput;
    $urpm->build_hdlist(start  => $start,
			end    => $end,
			dir    => $headers_dir,
			hdlist => $temp_hdlist,
			ratio  => 9);
    system('/bin/mv', $temp_hdlist, $e->{hdlist});

    print STDERR qq(building synthesis for medium "$e->{descr}"\n) unless $nooutput;
    $urpm->build_synthesis(start     => $start,
			   end       => $end,
			   synthesis => $e->{synthesis});

    } else { # no rpm, creating empty but valid index
        my $pack = MDV::Packdrakeng->new(archive =>  $temp_hdlist);
        $pack = undef; # closing archive

        system('/bin/mv', $temp_hdlist, $e->{hdlist});
        open(my $hsynth, "| gzip > $e->{synthesis}");
        close($hsynth);
    }

    unless ($nomediainfo) {
	print STDERR qq(link alternate locations of synthesis and hdlists\n) unless $nooutput;
	unlink $e->{hdlist2}, $e->{synthesis2};
	link $e->{hdlist}, $e->{hdlist2}
	    or print STDERR qq(link failed for "$e->{hdlist2}": $!\n);
	link $e->{synthesis}, $e->{synthesis2}
	    or print STDERR qq(link failed for "$e->{synthesis2}": $!\n);
    }

    unless ($nomd5sum) {
	print STDERR qq(generate media-specific MD5SUM in $e->{thismediainfo}\n) unless $nooutput;
	my $here = getcwd();
	chdir $e->{thismediainfo};
	my $md5sum = `/usr/bin/md5sum hdlist* synthesis*`;
	chdir $here;
	if (open my $md5sumfh, '>', $e->{md5sum}) {
	    print $md5sumfh $md5sum;
	    close $md5sumfh;
	} else {
	    print STDERR qq(Can't create "$e->{md5sum}": $!\n);
	}
    }
}

clean_cache();

if (grep { ! $_->{noneedrebuild} } @hdlists) {

    print STDERR "building base files\n" unless $nooutput;
    $urpm->build_base_files(
	depslist => $urpmfiles{depslist},
	provides => $urpmfiles{provides},
	compss   => $urpmfiles{compss},
    );

    if (-f $destinfodir . '/media.cfg') {
	if (! -f $destinfodir . '/hdlists' ||
	    ((stat($distrib->getfullpath(undef, 'infodir') . '/media.cfg'))[9] >
		(stat($destinfodir . '/hdlists'))[9])) {
	    print STDERR "Write hdlists file\n" unless $nooutput;
	    $distrib->write_hdlists($destinfodir . '/hdlists')
		or print STDERR "Can't write $destinfodir/hdlists file\n";
	}
    }

    #- safety cleaning
    unlink $urpmfiles{md5sum};
    unless ($nomd5sum) {
	my $here = getcwd();
	chdir $destinfodir;
	my $md5sum = `/usr/bin/md5sum hdlist* synthesis*`;
	chdir $here;
	if (open my $md5sumfh, '>', $urpmfiles{md5sum}) {
	    print $md5sumfh $md5sum;
	    close $md5sumfh;
	} else {
	    print STDERR qq(Can't create "$urpmfiles{md5sum}": $!\n);
	}
    }

    print STDERR "Building version file\n" unless $nooutput;
    $distrib->write_version($urpmfiles{version});
}

#- check if there are NOTFOUND in dependencies, check if they are in other media, warn the user.
if ($nooutput || !$nochkdep) {
    foreach (0 .. $#{$urpm->{depslist}}) {
        my $pkg = $urpm->{depslist}[$_];

        foreach (split " ", $urpm->{deps}[$_]) {
	    /NOTFOUND_(.*)/ or next;
	    print STDERR $pkg->fullname . " requires [$1] which\n";
	    if ($urpm->{provides}{$1}) {
	        print STDERR "  is available on packages not listed in this medium or previous medium:\n";
	        foreach (keys %{$urpm->{provides}{$1}}) {
		    my $dep_pkg = $urpm->{depslist}[$_];
		    print STDERR "    " . $dep_pkg->fullname . "\n";
	        }
	    } else {
	        print STDERR "  is not available in any medium listed\n";
	        if (/NOTFOUND_(\D*)(\d+[\.\-\d]*)?(.*)?\.so\./) {
		    my $re = (quotemeta $1) . '(\d+[\.\-\d]*)' . (!$2 && "?") . '\.so\.';
		    foreach (keys %{$urpm->{provides}}) {
		        /$re/ or next;
		        print STDERR "  but a similar provides is available as [$_], need rebuild ?\n";
		    }
	        }
            }
        }
    }
}

__END__

=head1 NAME

gendistrib - generates a mirror tree for a distribution

=head1 SYNOPSIS

    gendistrib [options] directory

=head1 OPTIONS

=over 4

=item --blind

Always rebuild indexes, without checking whether it's needed.

=item --compss file

Path of F<compss> file (defaults to F<media/media_info/compss>).

=item --depslist file

Path of F<depslist> file (defaults to F<media/media_info/depslist.ordered>).

=item --destdir dir

Create all new files in the specified directory. All subdirectories should
exist. This option is mostly useful for testing, or while using a read-only
repository.

=item --hdlists file

Path of the F<hdlists> file (defaults to F<media/media_info/hdlists>)

=item --headersdir dir

Put temporary files in this directory (defaults to TMPDIR).

=item --mediacfg file

Use the specified F<media.cfg> file (defaults to F<media/media_info/media.cfg>).

=item --nobadrpm

Don't abort when encountering bad rpms.

=item --nochkdep

Don't search for missing dependencies.

=item --noclean

Keep cache files.

=item --noemptymedia

Stop and abort if an empty media is found.

=item --nomd5sum

Don't generate MD5SUM files.

=item --nomediainfo

Don't create per-media F<media_info> subdirectories.

=item --provides file

Path of F<provides> file (defaults to F<media/media_info/provides>)

=item --skipmissingdir

If a media dir is missing, ignore it instead of aborting.

=item -s

Silent mode.

=back

=head1 DESCRIPTION

F<gendistrib> is a tool that helps to generate the structure of a Mandriva
RPM repository, compatible with Mandriva tools (F<urpmi>, F<rpmdrake>,
etc.)

=head2 General Structure of a Repository

A typical repository, under a root directory F</ROOT/>, has the following
structure:

    ROOT/ - media/
	    |- contrib/
	    |   `- media_info/
	    |- main/
	    |   `- media_info/
	    `- media_info/

In this example, we have two media, called I<main> and I<contrib>. The
RPMs packages are placed in the F<main> and F<contrib> subdirectories.
Repository metadata is contained in the top-level F<media_info> directory.
Per-media metadata are contained in the F<main/media_info> and
F<contrib/media_info> subdirectories.

=head2 Configuration of the distribution tree

Before using F<gendistrib>, you must create a file F<media_info/media.cfg>
to describe your repository. (An empty file will work, but this isn't
recommended.) The syntax of this file is reminiscent of F<.ini> files.

A first section C<[media_info]> contains global information about the
repository:

    [media_info]
    version=2006.0
    branch=Cooker
    arch=i586

Then, supply one section per media.

    [main]
    hdlist=hdlist_main.cz
    name=Main

Here, the C<hdlist> parameter specifies what will be the name of the
hdlist file in the top-level F<media_info> directory. C<name> is a human
readable label for the media.

=head2 Operation

F<genhdlist> should be passed the F<ROOT> directory as parameter. It will
then generate the hdlist and synthesis files and all other files needed
for proper repository operation.

F<genhdlist> will also verify any broken dependencies in your repository
and report them.

=head1 SEE ALSO

genhdlist(1), and MDV::Distribconf(3) for description of the format of the
F<media.cfg> file.

=head1 COPYRIGHT

Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 MandrakeSoft SA

Copyright (C) 2005 Mandriva SA

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