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1 | package File::Find; |
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2 | require 5.005; |
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3 | require Exporter; |
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4 | require Cwd; |
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5 | |
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6 | =head1 NAME |
7 | |
8 | find - traverse a file tree |
9 | |
10 | finddepth - traverse a directory structure depth-first |
11 | |
12 | =head1 SYNOPSIS |
13 | |
14 | use File::Find; |
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15 | find(\&wanted, '/foo', '/bar'); |
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16 | sub wanted { ... } |
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17 | |
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18 | use File::Find; |
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19 | finddepth(\&wanted, '/foo', '/bar'); |
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20 | sub wanted { ... } |
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21 | |
22 | use File::Find; |
23 | find({ wanted => \&process, follow => 1 }, '.'); |
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24 | |
25 | =head1 DESCRIPTION |
26 | |
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27 | The first argument to find() is either a hash reference describing the |
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28 | operations to be performed for each file, or a code reference. |
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29 | |
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30 | Here are the possible keys for the hash: |
31 | |
32 | =over 3 |
33 | |
34 | =item C<wanted> |
35 | |
36 | The value should be a code reference. This code reference is called |
37 | I<the wanted() function> below. |
38 | |
39 | =item C<bydepth> |
40 | |
41 | Reports the name of a directory only AFTER all its entries |
42 | have been reported. Entry point finddepth() is a shortcut for |
43 | specifying C<{ bydepth => 1 }> in the first argument of find(). |
44 | |
45 | =item C<follow> |
46 | |
47 | Causes symbolic links to be followed. Since directory trees with symbolic |
48 | links (followed) may contain files more than once and may even have |
49 | cycles, a hash has to be built up with an entry for each file. |
50 | This might be expensive both in space and time for a large |
51 | directory tree. See I<follow_fast> and I<follow_skip> below. |
52 | If either I<follow> or I<follow_fast> is in effect: |
53 | |
54 | =over 6 |
55 | |
56 | =item |
57 | |
58 | It is guarantueed that an I<lstat> has been called before the user's |
59 | I<wanted()> function is called. This enables fast file checks involving S< _>. |
60 | |
61 | =item |
62 | |
63 | There is a variable C<$File::Find::fullname> which holds the absolute |
64 | pathname of the file with all symbolic links resolved |
65 | |
66 | =back |
67 | |
68 | =item C<follow_fast> |
69 | |
70 | This is similar to I<follow> except that it may report some files |
71 | more than once. It does detect cycles however. |
72 | Since only symbolic links have to be hashed, this is |
73 | much cheaper both in space and time. |
74 | If processing a file more than once (by the user's I<wanted()> function) |
75 | is worse than just taking time, the option I<follow> should be used. |
76 | |
77 | =item C<follow_skip> |
78 | |
79 | C<follow_skip==1>, which is the default, causes all files which are |
80 | neither directories nor symbolic links to be ignored if they are about |
81 | to be processed a second time. If a directory or a symbolic link |
82 | are about to be processed a second time, File::Find dies. |
83 | C<follow_skip==0> causes File::Find to die if any file is about to be |
84 | processed a second time. |
85 | C<follow_skip==2> causes File::Find to ignore any duplicate files and |
86 | dirctories but to proceed normally otherwise. |
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87 | |
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88 | |
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89 | =item C<no_chdir> |
90 | |
91 | Does not C<chdir()> to each directory as it recurses. The wanted() |
92 | function will need to be aware of this, of course. In this case, |
93 | C<$_> will be the same as C<$File::Find::name>. |
94 | |
95 | =item C<untaint> |
96 | |
97 | If find is used in taint-mode (-T command line switch or if EUID != UID |
98 | or if EGID != GID) then internally directory names have to be untainted |
99 | before they can be cd'ed to. Therefore they are checked against a regular |
100 | expression I<untaint_pattern>. Note, that all names passed to the |
101 | user's I<wanted()> function are still tainted. |
102 | |
103 | =item C<untaint_pattern> |
104 | |
105 | See above. This should be set using the C<qr> quoting operator. |
106 | The default is set to C<qr|^([-+@\w./]+)$|>. |
107 | Note that the paranthesis which are vital. |
108 | |
109 | =item C<untaint_skip> |
110 | |
111 | If set, directories (subtrees) which fail the I<untaint_pattern> |
112 | are skipped. The default is to 'die' in such a case. |
113 | |
114 | =back |
115 | |
116 | The wanted() function does whatever verifications you want. |
117 | C<$File::Find::dir> contains the current directory name, and C<$_> the |
118 | current filename within that directory. C<$File::Find::name> contains |
119 | the complete pathname to the file. You are chdir()'d to C<$File::Find::dir> when |
120 | the function is called, unless C<no_chdir> was specified. |
121 | When <follow> or <follow_fast> are in effect there is also a |
122 | C<$File::Find::fullname>. |
123 | The function may set C<$File::Find::prune> to prune the tree |
124 | unless C<bydepth> was specified. |
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125 | |
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126 | This library is useful for the C<find2perl> tool, which when fed, |
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127 | |
128 | find2perl / -name .nfs\* -mtime +7 \ |
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129 | -exec rm -f {} \; -o -fstype nfs -prune |
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130 | |
131 | produces something like: |
132 | |
133 | sub wanted { |
134 | /^\.nfs.*$/ && |
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135 | (($dev, $ino, $mode, $nlink, $uid, $gid) = lstat($_)) && |
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136 | int(-M _) > 7 && |
137 | unlink($_) |
138 | || |
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139 | ($nlink || (($dev, $ino, $mode, $nlink, $uid, $gid) = lstat($_))) && |
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140 | $dev < 0 && |
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141 | ($File::Find::prune = 1); |
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142 | } |
143 | |
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144 | Set the variable C<$File::Find::dont_use_nlink> if you're using AFS, |
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145 | since AFS cheats. |
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146 | |
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147 | |
148 | Here's another interesting wanted function. It will find all symlinks |
149 | that don't resolve: |
150 | |
151 | sub wanted { |
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152 | -l && !-e && print "bogus link: $File::Find::name\n"; |
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153 | } |
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154 | |
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155 | See also the script C<pfind> on CPAN for a nice application of this |
156 | module. |
157 | |
158 | =head1 CAVEAT |
159 | |
160 | Be aware that the option to follow symblic links can be dangerous. |
161 | Depending on the structure of the directory tree (including symbolic |
162 | links to directories) you might traverse a given (physical) directory |
163 | more than once (only if C<follow_fast> is in effect). |
164 | Furthermore, deleting or changing files in a symbolically linked directory |
165 | might cause very unpleasant surprises, since you delete or change files |
166 | in an unknown directory. |
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167 | |
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168 | |
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169 | =cut |
170 | |
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171 | @ISA = qw(Exporter); |
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172 | @EXPORT = qw(find finddepth); |
173 | |
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174 | |
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175 | use strict; |
176 | my $Is_VMS; |
177 | |
178 | require File::Basename; |
179 | |
180 | my %SLnkSeen; |
181 | my ($wanted_callback, $avoid_nlink, $bydepth, $no_chdir, $follow, |
182 | $follow_skip, $full_check, $untaint, $untaint_skip, $untaint_pat); |
183 | |
184 | sub contract_name { |
185 | my ($cdir,$fn) = @_; |
186 | |
187 | return substr($cdir,0,rindex($cdir,'/')) if $fn eq '.'; |
188 | |
189 | $cdir = substr($cdir,0,rindex($cdir,'/')+1); |
190 | |
191 | $fn =~ s|^\./||; |
192 | |
193 | my $abs_name= $cdir . $fn; |
194 | |
195 | if (substr($fn,0,3) eq '../') { |
196 | do 1 while ($abs_name=~ s|/(?>[^/]+)/\.\./|/|); |
197 | } |
198 | |
199 | return $abs_name; |
200 | } |
201 | |
202 | |
203 | sub PathCombine($$) { |
204 | my ($Base,$Name) = @_; |
205 | my $AbsName; |
206 | |
207 | if (substr($Name,0,1) eq '/') { |
208 | $AbsName= $Name; |
209 | } |
210 | else { |
211 | $AbsName= contract_name($Base,$Name); |
212 | } |
213 | |
214 | # (simple) check for recursion |
215 | my $newlen= length($AbsName); |
216 | if ($newlen <= length($Base)) { |
217 | if (($newlen == length($Base) || substr($Base,$newlen,1) eq '/') |
218 | && $AbsName eq substr($Base,0,$newlen)) |
219 | { |
220 | return undef; |
221 | } |
222 | } |
223 | return $AbsName; |
224 | } |
225 | |
226 | sub Follow_SymLink($) { |
227 | my ($AbsName) = @_; |
228 | |
229 | my ($NewName,$DEV, $INO); |
230 | ($DEV, $INO)= lstat $AbsName; |
231 | |
232 | while (-l _) { |
233 | if ($SLnkSeen{$DEV, $INO}++) { |
234 | if ($follow_skip < 2) { |
235 | die "$AbsName is encountered a second time"; |
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236 | } |
237 | else { |
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238 | return undef; |
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239 | } |
240 | } |
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241 | $NewName= PathCombine($AbsName, readlink($AbsName)); |
242 | unless(defined $NewName) { |
243 | if ($follow_skip < 2) { |
244 | die "$AbsName is a recursive symbolic link"; |
245 | } |
246 | else { |
247 | return undef; |
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248 | } |
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249 | } |
250 | else { |
251 | $AbsName= $NewName; |
252 | } |
253 | ($DEV, $INO) = lstat($AbsName); |
254 | return undef unless defined $DEV; # dangling symbolic link |
255 | } |
256 | |
257 | if ($full_check && $SLnkSeen{$DEV, $INO}++) { |
258 | if ($follow_skip < 1) { |
259 | die "$AbsName encountered a second time"; |
260 | } |
261 | else { |
262 | return undef; |
263 | } |
264 | } |
265 | |
266 | return $AbsName; |
267 | } |
268 | |
269 | use vars qw/ $dir $name $fullname $prune /; |
270 | sub _find_dir_symlnk($$$); |
271 | sub _find_dir($$$); |
272 | |
273 | sub _find_opt { |
274 | my $wanted = shift; |
275 | die "invalid top directory" unless defined $_[0]; |
276 | |
277 | my $cwd = $wanted->{bydepth} ? Cwd::fastcwd() : Cwd::cwd(); |
278 | my $cwd_untainted = $cwd; |
279 | $wanted_callback = $wanted->{wanted}; |
280 | $bydepth = $wanted->{bydepth}; |
281 | $no_chdir = $wanted->{no_chdir}; |
282 | $full_check = $wanted->{follow}; |
283 | $follow = $full_check || $wanted->{follow_fast}; |
284 | $follow_skip = $wanted->{follow_skip}; |
285 | $untaint = $wanted->{untaint}; |
286 | $untaint_pat = $wanted->{untaint_pattern}; |
287 | $untaint_skip = $wanted->{untaint_skip}; |
288 | |
289 | |
290 | # a symbolic link to a directory doesn't increase the link count |
291 | $avoid_nlink = $follow || $File::Find::dont_use_nlink; |
292 | |
293 | if ( $untaint ) { |
294 | $cwd_untainted= $1 if $cwd_untainted =~ m|$untaint_pat|; |
295 | die "insecure cwd in find(depth)" unless defined($cwd_untainted); |
296 | } |
297 | |
298 | my ($abs_dir, $nlink, $Is_Dir); |
299 | |
300 | Proc_Top_Item: |
301 | foreach my $TOP (@_) { |
302 | my $top_item = $TOP; |
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303 | $top_item =~ s|/$|| unless $top_item eq '/'; |
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304 | $Is_Dir= 0; |
305 | |
306 | if ($follow) { |
307 | if (substr($top_item,0,1) eq '/') { |
308 | $abs_dir = $top_item; |
309 | } |
310 | elsif ($top_item eq '.') { |
311 | $abs_dir = $cwd; |
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312 | } |
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313 | else { # care about any ../ |
314 | $abs_dir = contract_name("$cwd/",$top_item); |
315 | } |
316 | $abs_dir= Follow_SymLink($abs_dir); |
317 | unless (defined $abs_dir) { |
318 | warn "$top_item is a dangling symbolic link\n"; |
319 | next Proc_Top_Item; |
320 | } |
321 | if (-d _) { |
322 | _find_dir_symlnk($wanted, $abs_dir, $top_item); |
323 | $Is_Dir= 1; |
324 | } |
325 | } |
326 | else { # no follow |
327 | $nlink = (lstat $top_item)[3]; |
328 | unless (defined $nlink) { |
329 | warn "Can't stat $top_item: $!\n"; |
330 | next Proc_Top_Item; |
331 | } |
332 | if (-d _) { |
333 | $top_item =~ s/\.dir$// if $Is_VMS; |
334 | _find_dir($wanted, $top_item, $nlink); |
335 | $Is_Dir= 1; |
336 | } |
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337 | else { |
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338 | $abs_dir= $top_item; |
339 | } |
340 | } |
341 | |
342 | unless ($Is_Dir) { |
343 | unless (($_,$dir) = File::Basename::fileparse($abs_dir)) { |
344 | ($dir,$_) = ('.', $top_item); |
345 | } |
346 | |
347 | $abs_dir = $dir; |
348 | if ($untaint) { |
349 | my $abs_dir_save = $abs_dir; |
350 | $abs_dir = $1 if $abs_dir =~ m|$untaint_pat|; |
351 | unless (defined $abs_dir) { |
352 | if ($untaint_skip == 0) { |
353 | die "directory $abs_dir_save is still tainted"; |
354 | } |
355 | else { |
356 | next Proc_Top_Item; |
357 | } |
358 | } |
359 | } |
360 | |
361 | unless ($no_chdir or chdir $abs_dir) { |
362 | warn "Couldn't chdir $abs_dir: $!\n"; |
363 | next Proc_Top_Item; |
364 | } |
365 | |
366 | $name = $abs_dir; |
367 | |
368 | &$wanted_callback; |
369 | |
370 | } |
371 | |
372 | $no_chdir or chdir $cwd_untainted; |
373 | } |
374 | } |
375 | |
376 | # API: |
377 | # $wanted |
378 | # $p_dir : "parent directory" |
379 | # $nlink : what came back from the stat |
380 | # preconditions: |
381 | # chdir (if not no_chdir) to dir |
382 | |
383 | sub _find_dir($$$) { |
384 | my ($wanted, $p_dir, $nlink) = @_; |
385 | my ($CdLvl,$Level) = (0,0); |
386 | my @Stack; |
387 | my @filenames; |
388 | my ($subcount,$sub_nlink); |
389 | my $SE= []; |
390 | my $dir_name= $p_dir; |
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391 | my $dir_pref= ( $p_dir eq '/' ? '/' : "$p_dir/" ); |
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392 | my $dir_rel= '.'; # directory name relative to current directory |
393 | |
394 | local ($dir, $name, $prune, *DIR); |
395 | |
396 | unless ($no_chdir or $p_dir eq '.') { |
397 | my $udir = $p_dir; |
398 | if ($untaint) { |
399 | $udir = $1 if $p_dir =~ m|$untaint_pat|; |
400 | unless (defined $udir) { |
401 | if ($untaint_skip == 0) { |
402 | die "directory $p_dir is still tainted"; |
403 | } |
404 | else { |
405 | return; |
406 | } |
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407 | } |
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408 | } |
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409 | unless (chdir $udir) { |
410 | warn "Can't cd to $udir: $!\n"; |
411 | return; |
412 | } |
413 | } |
414 | |
415 | while (defined $SE) { |
416 | unless ($bydepth) { |
417 | $dir= $p_dir; |
418 | $name= $dir_name; |
419 | $_= ($no_chdir ? $dir_name : $dir_rel ); |
420 | # prune may happen here |
421 | $prune= 0; |
422 | &$wanted_callback; |
423 | next if $prune; |
424 | } |
425 | |
426 | # change to that directory |
427 | unless ($no_chdir or $dir_rel eq '.') { |
428 | my $udir= $dir_rel; |
429 | if ($untaint) { |
430 | $udir = $1 if $dir_rel =~ m|$untaint_pat|; |
431 | unless (defined $udir) { |
432 | if ($untaint_skip == 0) { |
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433 | die "directory (" |
434 | . ($p_dir ne '/' ? $p_dir : '') |
435 | . "/) $dir_rel is still tainted"; |
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436 | } |
437 | } |
438 | } |
439 | unless (chdir $udir) { |
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440 | warn "Can't cd to (" |
441 | . ($p_dir ne '/' ? $p_dir : '') |
442 | . "/) $udir : $!\n"; |
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443 | next; |
444 | } |
445 | $CdLvl++; |
446 | } |
447 | |
448 | $dir= $dir_name; |
449 | |
450 | # Get the list of files in the current directory. |
451 | unless (opendir DIR, ($no_chdir ? $dir_name : '.')) { |
452 | warn "Can't opendir($dir_name): $!\n"; |
453 | next; |
454 | } |
455 | @filenames = readdir DIR; |
456 | closedir(DIR); |
457 | |
458 | if ($nlink == 2 && !$avoid_nlink) { |
459 | # This dir has no subdirectories. |
460 | for my $FN (@filenames) { |
461 | next if $FN =~ /^\.{1,2}$/; |
462 | |
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463 | $name = $dir_pref . $FN; |
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464 | $_ = ($no_chdir ? $name : $FN); |
465 | &$wanted_callback; |
466 | } |
467 | |
468 | } |
469 | else { |
470 | # This dir has subdirectories. |
471 | $subcount = $nlink - 2; |
472 | |
473 | for my $FN (@filenames) { |
474 | next if $FN =~ /^\.{1,2}$/; |
475 | if ($subcount > 0 || $avoid_nlink) { |
476 | # Seen all the subdirs? |
477 | # check for directoriness. |
478 | # stat is faster for a file in the current directory |
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479 | $sub_nlink = (lstat ($no_chdir ? $dir_pref . $FN : $FN))[3]; |
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480 | |
481 | if (-d _) { |
482 | --$subcount; |
483 | $FN =~ s/\.dir$// if $Is_VMS; |
484 | push @Stack,[$CdLvl,$dir_name,$FN,$sub_nlink]; |
485 | } |
486 | else { |
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487 | $name = $dir_pref . $FN; |
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488 | $_= ($no_chdir ? $name : $FN); |
489 | &$wanted_callback; |
490 | } |
491 | } |
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492 | else { |
493 | $name = $dir_pref . $FN; |
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494 | $_= ($no_chdir ? $name : $FN); |
495 | &$wanted_callback; |
496 | } |
497 | } |
498 | } |
499 | if ($bydepth) { |
500 | $name = $dir_name; |
501 | $dir = $p_dir; |
502 | $_ = ($no_chdir ? $dir_name : $dir_rel ); |
503 | &$wanted_callback; |
504 | } |
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505 | } |
506 | continue { |
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507 | if ( defined ($SE = pop @Stack) ) { |
508 | ($Level, $p_dir, $dir_rel, $nlink) = @$SE; |
509 | if ($CdLvl > $Level && !$no_chdir) { |
510 | die "Can't cd to $dir_name" . '../' x ($CdLvl-$Level) |
511 | unless chdir '../' x ($CdLvl-$Level); |
512 | $CdLvl = $Level; |
513 | } |
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514 | $dir_name = ($p_dir eq '/' ? "/$dir_rel" : "$p_dir/$dir_rel"); |
515 | $dir_pref = "$dir_name/"; |
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516 | } |
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517 | } |
518 | } |
519 | |
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520 | |
521 | # API: |
522 | # $wanted |
523 | # $dir_loc : absolute location of a dir |
524 | # $p_dir : "parent directory" |
525 | # preconditions: |
526 | # chdir (if not no_chdir) to dir |
527 | |
528 | sub _find_dir_symlnk($$$) { |
529 | my ($wanted, $dir_loc, $p_dir) = @_; |
530 | my @Stack; |
531 | my @filenames; |
532 | my $new_loc; |
533 | my $SE = []; |
534 | my $dir_name = $p_dir; |
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535 | my $dir_pref = ( $p_dir eq '/' ? '/' : "$p_dir/" ); |
536 | my $loc_pref = ( $dir_loc eq '/' ? '/' : "$dir_loc/" ); |
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537 | my $dir_rel = '.'; # directory name relative to current directory |
538 | |
539 | local ($dir, $name, $fullname, $prune, *DIR); |
540 | |
541 | unless ($no_chdir or $p_dir eq '.') { |
542 | my $udir = $dir_loc; |
543 | if ($untaint) { |
544 | $udir = $1 if $dir_loc =~ m|$untaint_pat|; |
545 | unless (defined $udir) { |
546 | if ($untaint_skip == 0) { |
547 | die "directory $dir_loc is still tainted"; |
548 | } |
549 | else { |
550 | return; |
551 | } |
552 | } |
553 | } |
554 | unless (chdir $udir) { |
555 | warn "Can't cd to $udir: $!\n"; |
556 | return; |
557 | } |
558 | } |
559 | |
560 | while (defined $SE) { |
561 | |
562 | unless ($bydepth) { |
563 | $dir= $p_dir; |
564 | $name= $dir_name; |
565 | $_= ($no_chdir ? $dir_name : $dir_rel ); |
566 | $fullname= $dir_loc; |
567 | # prune may happen here |
568 | $prune= 0; |
569 | &$wanted_callback; |
570 | next if $prune; |
571 | } |
572 | |
573 | # change to that directory |
574 | unless ($no_chdir or $dir_rel eq '.') { |
575 | my $udir = $dir_loc; |
576 | if ($untaint) { |
577 | $udir = $1 if $dir_loc =~ m|$untaint_pat|; |
578 | unless (defined $udir ) { |
579 | if ($untaint_skip == 0) { |
580 | die "directory $dir_loc is still tainted"; |
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581 | } |
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582 | else { |
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583 | next; |
237437d0 |
584 | } |
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585 | } |
586 | } |
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587 | unless (chdir $udir) { |
588 | warn "Can't cd to $udir: $!\n"; |
589 | next; |
590 | } |
591 | } |
592 | |
593 | $dir = $dir_name; |
594 | |
595 | # Get the list of files in the current directory. |
596 | unless (opendir DIR, ($no_chdir ? $dir_loc : '.')) { |
597 | warn "Can't opendir($dir_loc): $!\n"; |
598 | next; |
599 | } |
600 | @filenames = readdir DIR; |
601 | closedir(DIR); |
602 | |
603 | for my $FN (@filenames) { |
604 | next if $FN =~ /^\.{1,2}$/; |
605 | |
606 | # follow symbolic links / do an lstat |
07867069 |
607 | $new_loc = Follow_SymLink($loc_pref.$FN); |
81793b90 |
608 | |
609 | # ignore if invalid symlink |
610 | next unless defined $new_loc; |
611 | |
612 | if (-d _) { |
613 | push @Stack,[$new_loc,$dir_name,$FN]; |
614 | } |
615 | else { |
616 | $fullname = $new_loc; |
07867069 |
617 | $name = $dir_pref . $FN; |
81793b90 |
618 | $_ = ($no_chdir ? $name : $FN); |
619 | &$wanted_callback; |
620 | } |
621 | } |
622 | |
623 | if ($bydepth) { |
624 | $fullname = $dir_loc; |
625 | $name = $dir_name; |
626 | $_ = ($no_chdir ? $dir_name : $dir_rel); |
627 | &$wanted_callback; |
628 | } |
629 | } |
630 | continue { |
631 | if (defined($SE = pop @Stack)) { |
632 | ($dir_loc, $p_dir, $dir_rel) = @$SE; |
07867069 |
633 | $dir_name = ($p_dir eq '/' ? "/$dir_rel" : "$p_dir/$dir_rel"); |
634 | $dir_pref = "$dir_name/"; |
635 | $loc_pref = "$dir_loc/"; |
a0d0e21e |
636 | } |
637 | } |
638 | } |
639 | |
81793b90 |
640 | |
20408e3c |
641 | sub wrap_wanted { |
81793b90 |
642 | my $wanted = shift; |
643 | if ( ref($wanted) eq 'HASH' ) { |
644 | if ( $wanted->{follow} || $wanted->{follow_fast}) { |
645 | $wanted->{follow_skip} = 1 unless defined $wanted->{follow_skip}; |
646 | } |
647 | if ( $wanted->{untaint} ) { |
648 | $wanted->{untaint_pattern} = qr|^([-+@\w./]+)$| |
649 | unless defined $wanted->{untaint_pattern}; |
650 | $wanted->{untaint_skip} = 0 unless defined $wanted->{untaint_skip}; |
651 | } |
652 | return $wanted; |
653 | } |
654 | else { |
655 | return { wanted => $wanted }; |
656 | } |
a0d0e21e |
657 | } |
658 | |
20408e3c |
659 | sub find { |
81793b90 |
660 | my $wanted = shift; |
661 | _find_opt(wrap_wanted($wanted), @_); |
662 | %SLnkSeen= (); # free memory |
a0d0e21e |
663 | } |
664 | |
55d729e4 |
665 | sub finddepth { |
81793b90 |
666 | my $wanted = wrap_wanted(shift); |
667 | $wanted->{bydepth} = 1; |
668 | _find_opt($wanted, @_); |
669 | %SLnkSeen= (); # free memory |
20408e3c |
670 | } |
6280b799 |
671 | |
672 | # These are hard-coded for now, but may move to hint files. |
10eba763 |
673 | if ($^O eq 'VMS') { |
81793b90 |
674 | $Is_VMS = 1; |
675 | $File::Find::dont_use_nlink = 1; |
748a9306 |
676 | } |
677 | |
81793b90 |
678 | $File::Find::dont_use_nlink = 1 |
3e8584ad |
679 | if $^O eq 'os2' || $^O eq 'dos' || $^O eq 'amigaos' || $^O eq 'MSWin32'; |
6280b799 |
680 | |
20408e3c |
681 | # Set dont_use_nlink in your hint file if your system's stat doesn't |
682 | # report the number of links in a directory as an indication |
683 | # of the number of files. |
684 | # See, e.g. hints/machten.sh for MachTen 2.2. |
81793b90 |
685 | unless ($File::Find::dont_use_nlink) { |
686 | require Config; |
687 | $File::Find::dont_use_nlink = 1 if ($Config::Config{'dont_use_nlink'}); |
20408e3c |
688 | } |
689 | |
a0d0e21e |
690 | 1; |