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
|
package CPANPLUS::Internals::Search;
use strict;
use CPANPLUS::Error;
use CPANPLUS::Internals::Constants;
use CPANPLUS::Module;
use CPANPLUS::Module::Author;
use File::Find;
use File::Spec;
use Params::Check qw[check allow];
use Locale::Maketext::Simple Class => 'CPANPLUS', Style => 'gettext';
$Params::Check::VERBOSE = 1;
=pod
=head1 NAME
CPANPLUS::Internals::Search
=head1 SYNOPSIS
my $aref = $cpan->_search_module_tree(
type => 'package',
allow => [qr/DBI/],
);
my $aref = $cpan->_search_author_tree(
type => 'cpanid',
data => \@old_results,
verbose => 1,
allow => [qw|KANE AUTRIJUS|],
);
my $aref = $cpan->_all_installed( );
=head1 DESCRIPTION
The functions in this module are designed to find module(objects)
based on certain criteria and return them.
=head1 METHODS
=head2 _search_module_tree( type => TYPE, allow => \@regexes, [data => \@previous_results ] )
Searches the moduletree for module objects matching the criteria you
specify. Returns an array ref of module objects on success, and false
on failure.
It takes the following arguments:
=over 4
=item type
This can be any of the accessors for the C<CPANPLUS::Module> objects.
This is a required argument.
=item allow
A set of rules, or more precisely, a list of regexes (via C<qr//> or
plain strings), that the C<type> must adhere too. You can specify as
many as you like, and it will be treated as an C<OR> search.
For an C<AND> search, see the C<data> argument.
This is a required argument.
=item data
An arrayref of previous search results. This is the way to do an C<AND>
search -- C<_search_module_tree> will only search the module objects
specified in C<data> if provided, rather than the moduletree itself.
=back
=cut
# Although the Params::Check solution is more graceful, it is WAY too slow.
#
# This sample script:
#
# use CPANPLUS::Backend;
# my $cb = new CPANPLUS::Backend;
# $cb->module_tree;
# my @list = $cb->search( type => 'module', allow => [qr/^Acme/] );
# print $_->module, $/ for @list;
#
# Produced the following output using Dprof WITH params::check code
#
# Total Elapsed Time = 3.670024 Seconds
# User+System Time = 3.390373 Seconds
# Exclusive Times
# %Time ExclSec CumulS #Calls sec/call Csec/c Name
# 88.7 3.008 4.463 20610 0.0001 0.0002 Params::Check::check
# 47.4 1.610 1.610 1 1.6100 1.6100 Storable::net_pstore
# 25.6 0.869 0.737 20491 0.0000 0.0000 Locale::Maketext::Simple::_default
# _gettext
# 23.2 0.789 0.524 40976 0.0000 0.0000 Params::Check::_who_was_it
# 23.2 0.789 0.677 20610 0.0000 0.0000 Params::Check::_sanity_check
# 19.7 0.670 0.670 1 0.6700 0.6700 Storable::pretrieve
# 14.1 0.480 0.211 41350 0.0000 0.0000 Params::Check::_convert_case
# 11.5 0.390 0.256 20610 0.0000 0.0000 Params::Check::_hashdefs
# 11.5 0.390 0.255 20697 0.0000 0.0000 Params::Check::_listreqs
# 11.4 0.389 0.177 20653 0.0000 0.0000 Params::Check::_canon_key
# 10.9 0.370 0.356 20697 0.0000 0.0000 Params::Check::_hasreq
# 8.02 0.272 4.750 1 0.2723 4.7501 CPANPLUS::Internals::Search::_sear
# ch_module_tree
# 6.49 0.220 0.086 20653 0.0000 0.0000 Params::Check::_iskey
# 6.19 0.210 0.077 20488 0.0000 0.0000 Params::Check::_store_error
# 5.01 0.170 0.036 20680 0.0000 0.0000 CPANPLUS::Module::__ANON__
#
# and this output /without/
#
# Total Elapsed Time = 2.803426 Seconds
# User+System Time = 2.493426 Seconds
# Exclusive Times
# %Time ExclSec CumulS #Calls sec/call Csec/c Name
# 56.9 1.420 1.420 1 1.4200 1.4200 Storable::net_pstore
# 25.6 0.640 0.640 1 0.6400 0.6400 Storable::pretrieve
# 9.22 0.230 0.096 20680 0.0000 0.0000 CPANPLUS::Module::__ANON__
# 7.06 0.176 0.272 1 0.1762 0.2719 CPANPLUS::Internals::Search::_sear
# ch_module_tree
# 3.21 0.080 0.098 10 0.0080 0.0098 IPC::Cmd::BEGIN
# 1.60 0.040 0.205 13 0.0031 0.0158 CPANPLUS::Internals::BEGIN
# 1.20 0.030 0.030 29 0.0010 0.0010 vars::BEGIN
# 1.20 0.030 0.117 10 0.0030 0.0117 Log::Message::BEGIN
# 1.20 0.030 0.029 9 0.0033 0.0033 CPANPLUS::Internals::Search::BEGIN
# 0.80 0.020 0.020 5 0.0040 0.0040 DynaLoader::dl_load_file
# 0.80 0.020 0.127 10 0.0020 0.0127 CPANPLUS::Module::BEGIN
# 0.80 0.020 0.389 2 0.0099 0.1944 main::BEGIN
# 0.80 0.020 0.359 12 0.0017 0.0299 CPANPLUS::Backend::BEGIN
# 0.40 0.010 0.010 30 0.0003 0.0003 Config::FETCH
# 0.40 0.010 0.010 18 0.0006 0.0005 Locale::Maketext::Simple::load_loc
#
sub _search_module_tree {
my $self = shift;
my $conf = $self->configure_object;
my %hash = @_;
my($mods,$list,$verbose,$type);
my $tmpl = {
data => { default => [],
strict_type=> 1, store => \$mods },
allow => { required => 1, default => [ ], strict_type => 1,
store => \$list },
verbose => { default => $conf->get_conf('verbose'),
store => \$verbose },
type => { required => 1, allow => [CPANPLUS::Module->accessors()],
store => \$type },
};
my $args = do {
### don't check the template for sanity
### -- we know it's good and saves a lot of performance
local $Params::Check::SANITY_CHECK_TEMPLATE = 0;
check( $tmpl, \%hash );
} or return;
### a list of module objects was supplied
if( @$mods ) {
local $Params::Check::VERBOSE = 0;
my @rv;
for my $mod (@$mods) {
#push @rv, $mod if check(
# { $type => { allow => $list } },
# { $type => $mod->$type() }
# );
push @rv, $mod if allow( $mod->$type() => $list );
}
return \@rv;
} else {
my @rv = $self->_source_search_module_tree(
allow => $list,
type => $type,
);
return \@rv;
}
}
=pod
=head2 _search_author_tree( type => TYPE, allow => \@regexex, [data => \@previous_results ] )
Searches the authortree for author objects matching the criteria you
specify. Returns an array ref of author objects on success, and false
on failure.
It takes the following arguments:
=over 4
=item type
This can be any of the accessors for the C<CPANPLUS::Module::Author>
objects. This is a required argument.
=item allow
A set of rules, or more precisely, a list of regexes (via C<qr//> or
plain strings), that the C<type> must adhere too. You can specify as
many as you like, and it will be treated as an C<OR> search.
For an C<AND> search, see the C<data> argument.
This is a required argument.
=item data
An arrayref of previous search results. This is the way to do an C<and>
search -- C<_search_author_tree> will only search the author objects
specified in C<data> if provided, rather than the authortree itself.
=back
=cut
sub _search_author_tree {
my $self = shift;
my $conf = $self->configure_object;
my %hash = @_;
my($authors,$list,$verbose,$type);
my $tmpl = {
data => { default => [],
strict_type=> 1, store => \$authors },
allow => { required => 1, default => [ ], strict_type => 1,
store => \$list },
verbose => { default => $conf->get_conf('verbose'),
store => \$verbose },
type => { required => 1, allow => [CPANPLUS::Module::Author->accessors()],
store => \$type },
};
my $args = check( $tmpl, \%hash ) or return;
if( @$authors ) {
local $Params::Check::VERBOSE = 0;
my @rv;
for my $auth (@$authors) {
#push @rv, $auth if check(
# { $type => { allow => $list } },
# { $type => $auth->$type }
# );
push @rv, $auth if allow( $auth->$type() => $list );
}
return \@rv;
} else {
my @rv = $self->_source_search_author_tree(
allow => $list,
type => $type,
);
return \@rv;
}
}
=pod
=head2 _all_installed()
This function returns an array ref of module objects of modules that
are installed on this system.
=cut
sub _all_installed {
my $self = shift;
my $conf = $self->configure_object;
my %hash = @_;
### File::Find uses follow_skip => 1 by default, which doesn't die
### on duplicates, unless they are directories or symlinks.
### Ticket #29796 shows this code dying on Alien::WxWidgets,
### which uses symlinks.
### File::Find doc says to use follow_skip => 2 to ignore duplicates
### so this will stop it from dying.
my %find_args = ( follow_skip => 2 );
### File::Find uses lstat, which quietly becomes stat on win32
### it then uses -l _ which is not allowed by the statbuffer because
### you did a stat, not an lstat (duh!). so don't tell win32 to
### follow symlinks, as that will break badly
$find_args{'follow_fast'} = 1 unless ON_WIN32;
### never use the @INC hooks to find installed versions of
### modules -- they're just there in case they're not on the
### perl install, but the user shouldn't trust them for *other*
### modules!
### XXX CPANPLUS::inc is now obsolete, remove the calls
#local @INC = CPANPLUS::inc->original_inc;
my %seen; my @rv;
for my $dir (@INC ) {
next if $dir eq '.';
### not a directory after all
### may be coderef or some such
next unless -d $dir;
### make sure to clean up the directories just in case,
### as we're making assumptions about the length
### This solves rt.cpan issue #19738
### John M. notes: On VMS cannonpath can not currently handle
### the $dir values that are in UNIX format.
$dir = File::Spec->canonpath( $dir ) unless ON_VMS;
### have to use F::S::Unix on VMS, or things will break
my $file_spec = ON_VMS ? 'File::Spec::Unix' : 'File::Spec';
### XXX in some cases File::Find can actually die!
### so be safe and wrap it in an eval.
eval { File::Find::find(
{ %find_args,
wanted => sub {
return unless /\.pm$/i;
my $mod = $File::Find::name;
### make sure it's in Unix format, as it
### may be in VMS format on VMS;
$mod = VMS::Filespec::unixify( $mod ) if ON_VMS;
$mod = substr($mod, length($dir) + 1, -3);
$mod = join '::', $file_spec->splitdir($mod);
return if $seen{$mod}++;
my $modobj = $self->module_tree($mod);
### separate return, a list context return with one ''
### in it, is also true!
return unless $modobj;
push @rv, $modobj;
},
}, $dir
) };
### report the error if file::find died
error(loc("Error finding installed files in '%1': %2", $dir, $@)) if $@;
}
return \@rv;
}
1;
# Local variables:
# c-indentation-style: bsd
# c-basic-offset: 4
# indent-tabs-mode: nil
# End:
# vim: expandtab shiftwidth=4:
|
