aboutsummaryrefslogtreecommitdiffstats
path: root/gendistrib
blob: 501fd9e0eb525ebfbb0e2247acd0e2a9828f5b55 (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
#!/usr/bin/perl

(our $VERSION) = q(Id: gendistrib 20724 2006-11-30 13:13:27Z rafael ) =~ /(\d+)/;

use strict;
use MDV::Distribconf::Build;
use Getopt::Long;

sub usage () {
    require Pod::Usage;
    Pod::Usage::pod2usage({ '-verbose' => 1 });
    exit 0;
}

my %urpmfiles;
my %old;

GetOptions(
    'blind' => \my $blind,
    'hdlists=s' => \$urpmfiles{hdlists},
    'help|h' => \&usage,
    'mediacfg=s' => \$urpmfiles{mediacfg},
    'nobadrpm' => \my $nobadrpm,
    'noemptymedia' => \my $noemptymedia,
    'nomd5sum' => \my $nomd5sum,
    'skipmissingdir' => \my $skipmissingdir,
    's' => \my $nooutput,
    'v|version' => sub { warn "$0 version $VERSION\n"; exit 0 },

# old stuff
    'chkdep' => \$old{chkdep},
    'compss=s' => \$old{compss},
    'depslist=s' => \$old{depslist},
    'noclean' => \$old{noclean},
    'provides=s' => \$old{provides},
    'headersdir=s' => \$old{headersdir},
    'nomediainfo' => \$old{nomediainfo},
);

foreach (qw(chkdep compss depslist noclean headersdir provides nomediainfo)) {
    $old{$_} and warn "--$_ is obsolete (not used anymore)\n";
}

@ARGV == 1 or usage();
my ($root) = @ARGV;

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

$distrib->loadtree or die "$root 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 = $distrib->getfullpath(undef, "infodir");
$urpmfiles{version} = $distrib->getfullpath(undef, "VERSION"),

# Error which are fatale
my @fatal = qw(SAME_INDEX);
push @fatal, 'MISSING_MEDIADIR' if !$skipmissingdir;
my @IGNORE = qw(MISSING_INDEX);
my @fatalerrors; # fatales error show at the end
$distrib->check(sub {
        my %info = @_;
        grep { $_ eq $info{errcode} } @IGNORE and next;
        if (grep { $_ eq $info{errcode} } @fatal) {
            push(@fatalerrors, "$info{level}: $info{message}");
        } else {
            printf STDERR "$info{level}: $info{message}\n" unless $nooutput;
        }
    }
);

if (@fatalerrors) {
    printf STDERR <<EOF;

A fatal error has been detected, continueing is likely to produce an invalid
tree. (Missing directories can be ignored with --skipmissingdir.)
Fix the error in media.cfg and retry:

EOF
    print STDERR "$_\n" foreach @fatalerrors;
    print STDERR "\n";
    exit(1);
}

my @hdlists;
foreach my $m ($distrib->listmedia) {
    my $path = $distrib->getfullpath($m, 'path');
    -d $path or next; # this has been checked earlier

    push @hdlists, {
        media         => $m,
        dir           => $distrib->getpath($m, 'path'),
        path          => $path,
        descr         => $distrib->getvalue($m, 'name'),
        hdlist2       => $distrib->getfullpath($m, 'hdlist'),
        synthesis2    => $distrib->getfullpath($m, 'synthesis'),
        pubkey2       => $distrib->getfullpath($m, 'pubkey'),
        hdlist        => "$path/media_info/hdlist.cz",
        synthesis     => "$path/media_info/synthesis.hdlist.cz",
        pubkey        => "$path/media_info/pubkey",
        noneedrebuild => $blind ? 0 : $distrib->check_index_sync($m, 'formedia'),
    };
}

if (!-d $destinfodir) {
    mkdir $destinfodir, 0755
        or die qq(Can't create directory "$destinfodir": $!\n);
}

my $infodir = $distrib->getfullpath(undef, 'infodir');

foreach my $d ($infodir, map { "$_->{path}/media_info" } @hdlists) {
    if (! -d $d) {
	mkdir $d, 0755 or die qq(Can't create directory "$d": $!\n);
    }
}

foreach my $e (@hdlists) {
    if ($e->{dir} =~ /%{ARCH}/) {
	die "sorry, %{ARCH} not supported anymore\n";
    }
    @{$e->{files}} = glob("$root/$e->{dir}/*.rpm") or do {
        print STDERR "unable to find rpm files in $e->{dir}\n" unless $nooutput;
        next;
    };
}

if ($noemptymedia) {
    if (grep { @{$_->{files}} == 0 } @hdlists) {
	die "Empty media were found, stopping\n";
    }
}

foreach my $e (grep { !$_->{noneedrebuild} } @hdlists) {
    print STDERR qq(building hdlist & synthesis for medium "$e->{descr}"\n) unless $nooutput;
    my $file_deps = "$destinfodir/file-deps";
    my $options = join(' ', 
		       '--allow-empty-media', 
		       $nooutput ? '--quiet' : (),
		       $nobadrpm ? '--no-bad-rpm' : (),
		       $nomd5sum ? "--no-md5sum" : (),
		       $distrib->getvalue($e->{media}, 'xml-info') ? '--xml-info' : (),
		       -e $file_deps ? "--file-deps $file_deps" : (),
		   );
    my $cmd = "genhdlist2 $options $e->{path}";
    print "running $cmd\n" unless $nooutput;
    system($cmd) == 0 or die "$cmd failed\n";
}

foreach my $e (@hdlists) {
    hdlist_alternate_location($e->{hdlist2}, $e->{hdlist});
    hdlist_alternate_location($e->{synthesis2}, $e->{synthesis});
    $e->{pubkey2} =~ s/ /_/g; # workaround MDV::Distribconf issue
    hdlist_alternate_location($e->{pubkey2}, $e->{pubkey});
}

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

    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 $destinfodir/hdlists file\n";
	}
    }
}
if (grep { !$_->{noneedrebuild} } @hdlists) {
    unlink "$destinfodir/MD5SUM"; #- safety cleaning
    unless ($nomd5sum) {
	# this MD5SUM is mostly obsolete, but is still needed up to 2007.1
	# (and even on cooker for existing urpmi.cfg)
	my $md5sum = `cd $destinfodir ; /usr/bin/md5sum hdlist_* synthesis*`;
	open my $md5sumfh, '>', "$destinfodir/MD5SUM" or die "Can't create $destinfodir/MD5SUM: $!\n";
	print $md5sumfh $md5sum;
    }

    print STDERR "Calculating size of medias\n" unless $nooutput;
    foreach my $e (@hdlists) {
        my $size = 0;
        foreach (@{$e->{files} || []}) {
            $size += (stat($_))[7];
        }
        my $blk = 1;
        my $showsize = $size;
        my @unit = (' ', qw(k m g));
        while (@unit) {
            my $u = shift(@unit);
            if ($size / $blk < 1) {
                last;
            }
            $showsize = sprintf('%d%s', $size / $blk, $u);
            $blk *= 1024;
        }
        $distrib->setvalue($e->{media}, 'size', $showsize);
    }

    print STDERR "Rewriting media.cfg file\n" unless $nooutput;
    $distrib->write_mediacfg($urpmfiles{mediacfg});

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

sub hdlist_alternate_location {
    my ($alternate, $main) = @_;

    if (! -e $main) {
	print STDERR "missing $main, not creating alternate location $alternate\n";
    } elsif (-l $alternate && inode($alternate) == inode($main)) {
	# ok
    } else {
	if (-l $alternate) {
	    print STDERR "bad alternate location " . readlink($alternate) . ", replacing it\n";
	    unlink $alternate;
	} elsif (-e $alternate) {
	    print STDERR "replacing existing plain file $alternate with a symlink\n";
	    unlink $alternate;
	}
	print STDERR qq(link alternate location $alternate\n) unless $nooutput;
	relative_symlink($main, $alternate);
    }
}

sub inode {
    my ($f) = @_;
    (stat($f))[1];
}

sub relative_symlink {
    my ($src, $dest) = @_;

    # cleanup
    foreach ($src, $dest) {
	s!//!/!g;
	s!/\./!/!g;
    }

    my @src = split('/', $src);
    my @dest = split('/', $dest);
    pop @dest;

    while (@src && @dest && $src[0] eq $dest[0]) {
	shift @src;
	shift @dest;
    }
    symlink join('/', ('..') x @dest, @src), $dest;
}

__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 --hdlists file

Path of the F<hdlists> file (defaults to F<media/media_info/hdlists>). This is
deprecated; if gendistrib finds a F<media.cfg> file, it will use it and ignore
the F<hdlists> file unless this option is given.

=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 --noemptymedia

Stop and abort if an empty media is found.

=item --nomd5sum

Don't generate MD5SUM files.

=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<gendistrib> 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.

=head1 SEE ALSO

genhdlist2(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, 2006 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