File: osc_expand_link.pl

package info (click to toggle)
osc 0.164.2-1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 5,308 kB
  • sloc: python: 20,832; sh: 1,848; perl: 366; xml: 157; csh: 14; makefile: 9
file content (491 lines) | stat: -rwxr-xr-x 13,433 bytes parent folder | download | duplicates (5)
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
#! /usr/bin/perl -w
#
# osc_expand_link.pl -- a tool to help osc build packages where an _link exists.
# (C) 2006 jw@suse.de, distribute under GPL v2.
#
# 2006-12-12, jw
# 2006-12-15, jw, v0.2 -- {files}{error} gets printed if present.
# 2008-03-25, jw, v0.3 -- go via api using iChains and ~/.oscrc
# 2008-03-26, jw, v0.4 -- added linked file retrieval and usage.
# 2009-10-21, jw,         added obsolete warning, in favour of osc co -e

use Data::Dumper;
use LWP::UserAgent;
use HTTP::Status;
use Digest::MD5;

my $version = '0.4';
my $verbose = 1;

print "This $0 is obsolete. Please use instead: osc co -e\n";
sleep 5;

# curl buildservice:5352/source/home:jnweiger/vim
# curl 'buildservice:5352/source/home:jnweiger/vim?rev=d90bfab4301f758e0d82cf09aa263d37'
# curl 'buildservice:5352/source/home:jnweiger/vim/vim.spec?rev=d90bfab4301f758e0d82cf09aa263d37'

my $cfg = {
  apiurl  => slurp_file(".osc/_apiurl", 1),
  package => slurp_file(".osc/_package", 1),
  project => slurp_file(".osc/_project", 1),
  files   => xml_slurp_file(".osc/_files", { container => 'directory', attr => 'merge' }),
  link   => xml_slurp_file(".osc/_link",   { container => 'link', attr => 'merge' }),
};

{
  package CredUserAgent;
  @ISA = qw(LWP::UserAgent);

  sub new
  {
    my $self = LWP::UserAgent::new(@_);
    $self->agent("osc_expand_link.pl/$version");
    $self;
  }
  sub get_basic_credentials
  {
    my ($self, $realm, $uri) = @_;
    my $netloc = $uri->host_port;

    unless ($self->{auth})
      {
        print STDERR "Auth for $realm at $netloc\n";
        unless (open IN, "<", "$ENV{HOME}/.oscrc")
          {
            print STDERR "$ENV{HOME}/.oscrc: $!\n";
            return (undef, undef);
          }
        while (defined (my $line = <IN>))
          {
            chomp $line;
            $self->{auth}{pass} = $1 if $line =~ m{^pass\s*=\s*(\S+)};
            $self->{auth}{user} = $1 if $line =~ m{^user\s*=\s*(\S+)};
          }
        close IN;
        print STDERR "~/.oscrc: user=$self->{auth}{user}\n";
      }
    return ($self->{auth}{user},$self->{auth}{pass});
  }
}

my $ua = CredUserAgent->new (keep_alive => 1);

sub cred_get
{
  my ($url) = @_;
  my $r = $ua->get($url);
  die "$url: " . $r->status_line . "\n" unless $r->is_success;
  return $r->content;
}

sub cred_getstore
{
  my ($url, $file) = @_;
  my $r = $ua->get($url, ':content_file' => $file);
  die "$url: " . $r->status_line . "\n" unless $r->is_success;
  $r->code;
}

$cfg->{apiurl}  ||= 'https://api.opensuse.org';
$cfg->{project} ||= '<Project>';
$cfg->{package} ||= '<Package>';

chomp $cfg->{apiurl};
chomp $cfg->{project};
chomp $cfg->{package};

my $source = "$cfg->{apiurl}/source";
my $url = "$source/$cfg->{project}/$cfg->{package}";

if (my $url = $ARGV[0])
  {

    die qq{osc_expand_link $version;

Usage:

 osc co $cfg->{project} $cfg->{package}
 cd $cfg->{project}/$cfg->{package}
 $0

to resolve a _link.

or

 $0 $cfg->{apiurl}/source/$cfg->{project}/$cfg->{package}

to review internal buildservice data.

or
 $0 $cfg->{apiurl}/source/$cfg->{project}/$cfg->{package}/linked/\\*.spec

 cd $cfg->{project}/$cfg->{package}
 $0 linked \\*.spec

to retrieve the original specfile behind a link.

} if $url =~ m{^-};

    $url = "$url/$ARGV[1]" if $url eq 'linked' and $ARGV[1];
    if ($url =~ m{^(.*/)?linked/(.*)$})
      {
        $url = (defined $1) ? $1 : "$cfg->{project}/$cfg->{package}";
        my $file = $2;
        $url = "$source/$url" if $cfg->{apiurl} and $url !~ m{://};
        print STDERR "$url\n";
        my $dir = xml_parse(cred_get($url), 'merge');
        my $li = $dir->{directory}{linkinfo} || die "no linkinfo in $url\n";
        $url = "$source/$li->{project}/$li->{package}";
        mkdir("linked");

        if ($file =~ m{\*})
          {
            my $dir = xml_parse(cred_get($url), 'merge');
            $dir = $dir->{directory} if $dir->{directory};
            my @list = sort map { $_->{name} } @{$dir->{entry}};
            my $file_re = "\Q$file\E"; $file_re =~ s{\\\*}{\.\*}g;
            my @match = grep { $_ =~ m{^$file_re$} } @list;
            die "pattern $file not found in\n @list\n" unless @match;
            $file = $match[0];
          }
        $url .= "/$file";

        print STDERR "$url -> linked/$file\n";
        my $r = cred_getstore($url, "linked/$file");
        print STDERR " Error: $r\n" if $r != RC_OK;
        exit 0;
      }

    $url = "$cfg->{project}/$cfg->{package}/$url" unless $url =~ m{/};
    $url = "$source/$url" if $cfg->{apiurl} and $url !~ m{://};
    print cred_get($url);
    exit 0;
  }

warn "$cfg->{project}/$cfg->{package} error: $cfg->{files}{error}\n" if $cfg->{files}{error};
die "$cfg->{project}/$cfg->{package} has no _link\n" unless $cfg->{link};
die "$cfg->{project}/$cfg->{package} has no xsrcmd5\n" unless $cfg->{files}{xsrcmd5};

print STDERR "expanding link to $cfg->{link}{project}/$cfg->{link}{package}\n";
if (my $p = $cfg->{link}{patches})
  {
    $p = [ $p ] if ref $p ne 'ARRAY';
    my @p = map { "$_->{apply}{name}" } @$p;
    print STDERR "applied patches: " . join(',', @p) . "\n";
  }

my $dir = xml_parse(cred_get("$url?rev=$cfg->{files}{xsrcmd5}"), 'merge');
$dir = $dir->{directory} if defined $dir->{directory};
$dir->{entry} = [ $dir->{entry} ] if ref $dir->{entry} ne 'ARRAY';
for my $file (@{$dir->{entry}})
  {
    if (-f $file->{name})
      {
        ## check the md5sum of the existing file and be happy.
        $md5 = Digest::MD5->new;
        open IN, "<", $file->{name} or die "md5sum($file->{name} failed: $!";
        $md5->addfile(*IN);
        close IN;
        if ($md5->hexdigest eq $file->{md5})
          {
            print STDERR " - $file->{name} (md5 unchanged)\n";
          }
        else
          {
            print STDERR "Modified: $file->{name}, please commit changes!\n";
          }
        next;
      }
    print STDERR " get $file->{name}";
    # fixme: xsrcmd5 is obsolete.
    # use <linkinfo project="openSUSE:Factory" package="avrdude" xsrcmd5="a39c2bd14c3ad5dbb82edd7909fcdfc4">
    my $response = cred_getstore("$url/$file->{name}?rev=$cfg->{files}{xsrcmd5}", $file->{name});
    print STDERR ($response == RC_OK) ? "\n" : " Error:$response\n";
  }
exit 0;
##########################################################################

sub slurp_file
{
  my ($path, $silent) = @_;
  open IN, "<", $path or ($silent ? return undef : die "slurp_file($path) failed: $!\n");
  my $body = join '', <IN>;
  close IN;
  return $body;
}


#################################################################
## xml parser imported from w3dcm.pl and somewhat expanded.
## 2006-12-15, jw
##
## xml_parse assumes correct container closing.
## Any </...> tag would closes an open <foo>.
## Thus xml_parse is not suitable for HTML.
##
sub xml_parse
{
  my ($text, $attr) = @_;
  my %xml;
  my @stack = ();
  my $t = \%xml;

#print "xml_parse: '$text'\n";
  my @tags = find_tags($text);
  for my $i (0 .. $#tags)
    {
      my $tag = substr $text, $tags[$i]->{offset}, $tags[$i]->{tag_len};
      my $cdata = '';
      my $s = $tags[$i]->{offset} + $tags[$i]->{tag_len};
      if (defined $tags[$i+1])
        {
          my $l = $tags[$i+1]->{offset} - $s;
          $cdata = substr $text, $s, $l;
        }
      else
        {
          $cdata = substr $text, $s;
        }

#      print "tag=$tag\n";
      my $name = $1 if $tag =~ s{<([\?/]?[\w:-]+)\s*}{};
      $tag =~ s{>\s*$}{};
      my $nest = ($tag =~ s{[\?/]$}{}) ? 0 : 1;
      my $close = ($name =~ s{^/}{}) ? 1 : 0;
#      print "name=$name, attr='$tag', $close, $nest, '$cdata'\n";

      my $x = {};
      $x->{-cdata} .= $cdata if $nest;
      xml_add_attr($x, $tag, $attr) unless $tag eq '';

      if (!$close)
        {
          delete $t->{-cdata} if $t->{-cdata} and $t->{-cdata} =~ m{^\s*$};
          unless ($t->{$name})
            {
              $t->{$name} = $x;
            }
          else
            {
              $t->{$name} = [ $t->{$name} ] unless ref $t->{$name} eq 'ARRAY';
              push @{$t->{$name}}, $x;
            }
        }


      if ($close)
        {
          $t = pop @stack;
        }
      elsif ($nest)
        {
          push @stack, $t;
          $t = $x;
        }
    }

  print "stack=", Data::Dumper::Dumper(\@stack) if $verbose > 2;
  scalar_cdata($t);
  return $t;
}

##
## reads a file formatted by xml_make, and returns a hash.
## The toplevel container is removed from that hash, if specified.
## A wildcard '*' can be specified to remove any toplevel container.
## Otherwise the name of the container must match precisely.
##
sub xml_slurp_file
{
  my ($file, $opt) = @_;
  unless (open IN, "<$file")
    {
      return undef unless $opt->{die};
      die "xml_slurp($opt->{container}): cannot read $file: $!\n";
    }

  my $xml = join '', <IN>; close IN;
  $xml = xml_parse($xml, $opt->{attr});
  if (my $container = $opt->{container})
    {
      die "xml_slurp($file, '$container') malformed file, should have only one toplevel node.\n"
        unless scalar keys %$xml == 1;
      $container = (keys %$xml)[0] if $container eq '' or $container eq '*';
      die "xml_slurp($file, '$container') toplevel tag missing or wrong.\n" unless $xml->{$container};
      $xml = $xml->{$container};
    }
  return $xml;
}

sub xml_escape
{
  my ($text) = @_;

  ## XML::Simple does just that:
  $text =~ s{&}{&amp;}g;
  $text =~ s{<}{&lt;}g;
  $text =~ s{>}{&gt;}g;
  $text =~ s{"}{&quot;}g;
  return $text;
}

sub xml_unescape
{
  my ($text) = @_;

  ## XX: Fimxe: we should handle some more escapes here...
  ## and better do it in a single pass.
  $text =~ s{&#([\d]{3});}{chr $1}eg;
  $text =~ s{&lt;}{<}g;
  $text =~ s{&gt;}{>}g;
  $text =~ s{&quot;}{"}g;
  $text =~ s{&amp;}{&}g;

  return $text;
}

##
## find all hashes, that contain exactly one key named '-cdata'
## and replace these hashes with the value of that key.
## These values are scalar when created by xml_parse(), hence the name.
##
sub scalar_cdata
{
  my ($hash) = @_;
  my $selftag = '.scalar_cdata_running';

  return unless ref $hash eq 'HASH';
  return if $hash->{$selftag};
  $hash->{$selftag} = 1;

  for my $key (keys %$hash)
    {
      my $val = $hash->{$key};
      if (ref $val eq 'ARRAY')
        {
          for my $i (0..$#$val)
            {
              scalar_cdata($hash->{$key}[$i]);
            }
        }
      elsif (ref $val eq 'HASH')
        {
          my @k = keys %$val;
          if (scalar(@k) == 1 && ($k[0] eq '-cdata'))
            {
              $hash->{$key} = $hash->{$key}{-cdata};
            }
          else
            {
              delete $hash->{$key}{-cdata} if exists $val->{-cdata} && $val->{-cdata} =~ m{^\s*$};
              scalar_cdata($hash->{$key});
            }
        }
    }
  delete $hash->{$selftag};
}

##
## find_tags -- a brute force tag finder.
## This code is robust enough to parse the weirdest HTML.
## An Array containing hashes of { offset, name, tag_len } is returned.
## CDATA is skipped, but can be determined from gaps between tags.
## The name parser may chop names, so XML-style tag names are
## unreliable.
##
sub find_tags
{
  my ($text) = @_;
  my $last = '';
  my @tags;
  my $inquotes = 0;
  my $incomment = 0;

  while ($text =~ m{(<!--|-->|"|>|<)(/?\w*)}g)
    {
      my ($offset, $what, $name) = (length $`, $1, $2);

      if ($inquotes)
        {
          $inquotes = 0 if $what eq '"';
          next;
        }

      if ($incomment)
        {
          $incomment = 0 if $what eq '-->';
          next;
        }

      if ($what eq '"')
        {
          $inquotes = 1;
          next;
        }

      if ($what eq '<!--')
        {
          $incomment = 1;
          next;
        }

      next if $what eq $last;        # opening and closing angular brackets are polar.

      if ($what eq '>' and scalar @tags)
        {
          $tags[$#tags]{tag_len} = 1 + $offset - $tags[$#tags]{offset};
        }

      if ($what eq '<')
        {
          push @tags, {name => $name, offset => $offset };
        }

      $last = $what;
    }
  return @tags;
}

##
## how = undef:         defaults to '-attr plain'
## how = '-attr plain': add the attributes as one scalar value to hash-element -attr
## how = '-attr hash':  add the attributes as a hash-ref to hash-element -attr
## how = 'merge':       add the attributes as direct hash elements. (This is irreversible)
##
## attributes are either space-separated, or delimited with '' or "".
sub xml_add_attr
{
  my ($hash, $text, $how) = @_;
  $how = 'plain' unless $how;
  my $tag = '-attr'; $tag = $1 if $how =~ s{^\s*([\w_:-]+)\s+(.*)$}{$2};
  $how = lc $how;

  return $hash->{$tag} = $text if $how eq 'plain';

  if ($how eq 'hash')
    {
      $hash = $hash->{$tag} = {};
      $how = 'merge';
      ## fallthrough
    }
  if ($how eq 'merge')
    {
      while ($text =~ m{([\w_:-]+)\s*=("[^"]*"|'[^']'|\S*)\s*}g)
        {
          my ($key, $val) = ($1, $2);
          $val =~ s{^"(.*)"$}{$1} unless $val =~ s{^'(.*)'$}{$1};
          if (defined($hash->{$key}))
            {
              ## redefinition. promote to array and push.
              $hash->{$key} = [ $hash->{$key} ] unless ref $hash->{$key};
              push @{$hash->{$key}}, $val;
            }
          else
            {
              $hash->{$key} = $val;
            }
        }
      return $hash;
    }
  die "xml_expand_attr: unknown method '$how'\n";
}