Filename | /Users/ether/perl5/perlbrew/perls/36.0/lib/5.36.0/darwin-2level/File/Spec/Unix.pm |
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1 | 1 | 1 | 3.99ms | 5.38ms | BEGIN@4 | File::Spec::Unix::
44 | 4 | 3 | 297µs | 334µs | catdir (xsub) | File::Spec::Unix::
60 | 5 | 4 | 71µs | 71µs | canonpath (xsub) | File::Spec::Unix::
2 | 2 | 2 | 48µs | 84µs | catfile (xsub) | File::Spec::Unix::
1 | 1 | 1 | 24µs | 26µs | BEGIN@3 | File::Spec::Unix::
1 | 1 | 1 | 12µs | 44µs | BEGIN@209 | File::Spec::Unix::
1 | 1 | 1 | 8µs | 61µs | BEGIN@115 | File::Spec::Unix::
1 | 1 | 1 | 8µs | 15µs | BEGIN@167 | File::Spec::Unix::
1 | 1 | 1 | 6µs | 28µs | BEGIN@133 | File::Spec::Unix::
1 | 1 | 1 | 5µs | 29µs | BEGIN@124 | File::Spec::Unix::
1 | 1 | 1 | 5µs | 31µs | BEGIN@231 | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _cache_tmpdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _cached_tmpdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _collapse | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _pp_canonpath | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _pp_catdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _pp_catfile | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _same | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | _tmpdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | abs2rel | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | case_tolerant | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | catpath | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | curdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | devnull | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | file_name_is_absolute | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | join | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | no_upwards | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | path | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | rel2abs | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | rootdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | splitdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | splitpath | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | tmpdir | File::Spec::Unix::
0 | 0 | 0 | 0s | 0s | updir | File::Spec::Unix::
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1 | package File::Spec::Unix; | ||||
2 | |||||
3 | 2 | 38µs | 2 | 28µs | # spent 26µs (24+2) within File::Spec::Unix::BEGIN@3 which was called:
# once (24µs+2µs) by Pod::Usage::BEGIN@19 at line 3 # spent 26µs making 1 call to File::Spec::Unix::BEGIN@3
# spent 2µs making 1 call to strict::import |
4 | 2 | 956µs | 1 | 5.38ms | # spent 5.38ms (3.99+1.39) within File::Spec::Unix::BEGIN@4 which was called:
# once (3.99ms+1.39ms) by Pod::Usage::BEGIN@19 at line 4 # spent 5.38ms making 1 call to File::Spec::Unix::BEGIN@4 |
5 | |||||
6 | 1 | 1µs | our $VERSION = '3.84'; | ||
7 | 1 | 2µs | $VERSION =~ tr/_//d; | ||
8 | |||||
9 | =head1 NAME | ||||
10 | |||||
11 | File::Spec::Unix - File::Spec for Unix, base for other File::Spec modules | ||||
12 | |||||
13 | =head1 SYNOPSIS | ||||
14 | |||||
15 | require File::Spec::Unix; # Done automatically by File::Spec | ||||
16 | |||||
17 | =head1 DESCRIPTION | ||||
18 | |||||
19 | Methods for manipulating file specifications. Other File::Spec | ||||
20 | modules, such as File::Spec::Mac, inherit from File::Spec::Unix and | ||||
21 | override specific methods. | ||||
22 | |||||
23 | =head1 METHODS | ||||
24 | |||||
25 | =over 2 | ||||
26 | |||||
27 | =item canonpath() | ||||
28 | |||||
29 | No physical check on the filesystem, but a logical cleanup of a | ||||
30 | path. On UNIX eliminates successive slashes and successive "/.". | ||||
31 | |||||
32 | $cpath = File::Spec->canonpath( $path ) ; | ||||
33 | |||||
34 | Note that this does *not* collapse F<x/../y> sections into F<y>. This | ||||
35 | is by design. If F</foo> on your system is a symlink to F</bar/baz>, | ||||
36 | then F</foo/../quux> is actually F</bar/quux>, not F</quux> as a naive | ||||
37 | F<../>-removal would give you. If you want to do this kind of | ||||
38 | processing, you probably want C<Cwd>'s C<realpath()> function to | ||||
39 | actually traverse the filesystem cleaning up paths like this. | ||||
40 | |||||
41 | =cut | ||||
42 | |||||
43 | sub _pp_canonpath { | ||||
44 | my ($self,$path) = @_; | ||||
45 | return unless defined $path; | ||||
46 | |||||
47 | # Handle POSIX-style node names beginning with double slash (qnx, nto) | ||||
48 | # (POSIX says: "a pathname that begins with two successive slashes | ||||
49 | # may be interpreted in an implementation-defined manner, although | ||||
50 | # more than two leading slashes shall be treated as a single slash.") | ||||
51 | my $node = ''; | ||||
52 | my $double_slashes_special = $^O eq 'qnx' || $^O eq 'nto'; | ||||
53 | |||||
54 | |||||
55 | if ( $double_slashes_special | ||||
56 | && ( $path =~ s{^(//[^/]+)/?\z}{}s || $path =~ s{^(//[^/]+)/}{/}s ) ) { | ||||
57 | $node = $1; | ||||
58 | } | ||||
59 | # This used to be | ||||
60 | # $path =~ s|/+|/|g unless ($^O eq 'cygwin'); | ||||
61 | # but that made tests 29, 30, 35, 46, and 213 (as of #13272) to fail | ||||
62 | # (Mainly because trailing "" directories didn't get stripped). | ||||
63 | # Why would cygwin avoid collapsing multiple slashes into one? --jhi | ||||
64 | $path =~ s|/{2,}|/|g; # xx////xx -> xx/xx | ||||
65 | $path =~ s{(?:/\.)+(?:/|\z)}{/}g; # xx/././xx -> xx/xx | ||||
66 | $path =~ s|^(?:\./)+||s unless $path eq "./"; # ./xx -> xx | ||||
67 | $path =~ s|^/(?:\.\./)+|/|; # /../../xx -> xx | ||||
68 | $path =~ s|^/\.\.$|/|; # /.. -> / | ||||
69 | $path =~ s|/\z|| unless $path eq "/"; # xx/ -> xx | ||||
70 | return "$node$path"; | ||||
71 | } | ||||
72 | 1 | 0s | *canonpath = \&_pp_canonpath unless defined &canonpath; | ||
73 | |||||
74 | =item catdir() | ||||
75 | |||||
76 | Concatenate two or more directory names to form a complete path ending | ||||
77 | with a directory. But remove the trailing slash from the resulting | ||||
78 | string, because it doesn't look good, isn't necessary and confuses | ||||
79 | OS2. Of course, if this is the root directory, don't cut off the | ||||
80 | trailing slash :-) | ||||
81 | |||||
82 | =cut | ||||
83 | |||||
84 | sub _pp_catdir { | ||||
85 | my $self = shift; | ||||
86 | |||||
87 | $self->canonpath(join('/', @_, '')); # '' because need a trailing '/' | ||||
88 | } | ||||
89 | 1 | 0s | *catdir = \&_pp_catdir unless defined &catdir; | ||
90 | |||||
91 | =item catfile | ||||
92 | |||||
93 | Concatenate one or more directory names and a filename to form a | ||||
94 | complete path ending with a filename | ||||
95 | |||||
96 | =cut | ||||
97 | |||||
98 | sub _pp_catfile { | ||||
99 | my $self = shift; | ||||
100 | my $file = $self->canonpath(pop @_); | ||||
101 | return $file unless @_; | ||||
102 | my $dir = $self->catdir(@_); | ||||
103 | $dir .= "/" unless substr($dir,-1) eq "/"; | ||||
104 | return $dir.$file; | ||||
105 | } | ||||
106 | 1 | 0s | *catfile = \&_pp_catfile unless defined &catfile; | ||
107 | |||||
108 | =item curdir | ||||
109 | |||||
110 | Returns a string representation of the current directory. "." on UNIX. | ||||
111 | |||||
112 | =cut | ||||
113 | |||||
114 | sub curdir { '.' } | ||||
115 | 2 | 39µs | 2 | 114µs | # spent 61µs (8+53) within File::Spec::Unix::BEGIN@115 which was called:
# once (8µs+53µs) by Pod::Usage::BEGIN@19 at line 115 # spent 61µs making 1 call to File::Spec::Unix::BEGIN@115
# spent 53µs making 1 call to constant::import |
116 | |||||
117 | =item devnull | ||||
118 | |||||
119 | Returns a string representation of the null device. "/dev/null" on UNIX. | ||||
120 | |||||
121 | =cut | ||||
122 | |||||
123 | sub devnull { '/dev/null' } | ||||
124 | 2 | 32µs | 2 | 53µs | # spent 29µs (5+24) within File::Spec::Unix::BEGIN@124 which was called:
# once (5µs+24µs) by Pod::Usage::BEGIN@19 at line 124 # spent 29µs making 1 call to File::Spec::Unix::BEGIN@124
# spent 24µs making 1 call to constant::import |
125 | |||||
126 | =item rootdir | ||||
127 | |||||
128 | Returns a string representation of the root directory. "/" on UNIX. | ||||
129 | |||||
130 | =cut | ||||
131 | |||||
132 | sub rootdir { '/' } | ||||
133 | 2 | 121µs | 2 | 50µs | # spent 28µs (6+22) within File::Spec::Unix::BEGIN@133 which was called:
# once (6µs+22µs) by Pod::Usage::BEGIN@19 at line 133 # spent 28µs making 1 call to File::Spec::Unix::BEGIN@133
# spent 22µs making 1 call to constant::import |
134 | |||||
135 | =item tmpdir | ||||
136 | |||||
137 | Returns a string representation of the first writable directory from | ||||
138 | the following list or the current directory if none from the list are | ||||
139 | writable: | ||||
140 | |||||
141 | $ENV{TMPDIR} | ||||
142 | /tmp | ||||
143 | |||||
144 | If running under taint mode, and if $ENV{TMPDIR} | ||||
145 | is tainted, it is not used. | ||||
146 | |||||
147 | =cut | ||||
148 | |||||
149 | 1 | 0s | my ($tmpdir, %tmpenv); | ||
150 | # Cache and return the calculated tmpdir, recording which env vars | ||||
151 | # determined it. | ||||
152 | sub _cache_tmpdir { | ||||
153 | @tmpenv{@_[2..$#_]} = @ENV{@_[2..$#_]}; | ||||
154 | return $tmpdir = $_[1]; | ||||
155 | } | ||||
156 | # Retrieve the cached tmpdir, checking first whether relevant env vars have | ||||
157 | # changed and invalidated the cache. | ||||
158 | sub _cached_tmpdir { | ||||
159 | shift; | ||||
160 | local $^W; | ||||
161 | return if grep $ENV{$_} ne $tmpenv{$_}, @_; | ||||
162 | return $tmpdir; | ||||
163 | } | ||||
164 | sub _tmpdir { | ||||
165 | my $self = shift; | ||||
166 | my @dirlist = @_; | ||||
167 | 2 | 239µs | 2 | 22µs | # spent 15µs (8+7) within File::Spec::Unix::BEGIN@167 which was called:
# once (8µs+7µs) by Pod::Usage::BEGIN@19 at line 167 # spent 15µs making 1 call to File::Spec::Unix::BEGIN@167
# spent 7µs making 1 call to strict::unimport |
168 | if ($taint) { # Check for taint mode on perl >= 5.8.0 | ||||
169 | require Scalar::Util; | ||||
170 | @dirlist = grep { ! Scalar::Util::tainted($_) } @dirlist; | ||||
171 | } | ||||
172 | elsif ($] < 5.007) { # No ${^TAINT} before 5.8 | ||||
173 | @dirlist = grep { !defined($_) || eval { eval('1'.substr $_,0,0) } } | ||||
174 | @dirlist; | ||||
175 | } | ||||
176 | |||||
177 | foreach (@dirlist) { | ||||
178 | next unless defined && -d && -w _; | ||||
179 | $tmpdir = $_; | ||||
180 | last; | ||||
181 | } | ||||
182 | $tmpdir = $self->curdir unless defined $tmpdir; | ||||
183 | $tmpdir = defined $tmpdir && $self->canonpath($tmpdir); | ||||
184 | if ( !$self->file_name_is_absolute($tmpdir) ) { | ||||
185 | # See [perl #120593] for the full details | ||||
186 | # If possible, return a full path, rather than '.' or 'lib', but | ||||
187 | # jump through some hoops to avoid returning a tainted value. | ||||
188 | ($tmpdir) = grep { | ||||
189 | $taint ? ! Scalar::Util::tainted($_) : | ||||
190 | $] < 5.007 ? eval { eval('1'.substr $_,0,0) } : 1 | ||||
191 | } $self->rel2abs($tmpdir), $tmpdir; | ||||
192 | } | ||||
193 | return $tmpdir; | ||||
194 | } | ||||
195 | |||||
196 | sub tmpdir { | ||||
197 | my $cached = $_[0]->_cached_tmpdir('TMPDIR'); | ||||
198 | return $cached if defined $cached; | ||||
199 | $_[0]->_cache_tmpdir($_[0]->_tmpdir( $ENV{TMPDIR}, "/tmp" ), 'TMPDIR'); | ||||
200 | } | ||||
201 | |||||
202 | =item updir | ||||
203 | |||||
204 | Returns a string representation of the parent directory. ".." on UNIX. | ||||
205 | |||||
206 | =cut | ||||
207 | |||||
208 | sub updir { '..' } | ||||
209 | 2 | 75µs | 2 | 76µs | # spent 44µs (12+32) within File::Spec::Unix::BEGIN@209 which was called:
# once (12µs+32µs) by Pod::Usage::BEGIN@19 at line 209 # spent 44µs making 1 call to File::Spec::Unix::BEGIN@209
# spent 32µs making 1 call to constant::import |
210 | |||||
211 | =item no_upwards | ||||
212 | |||||
213 | Given a list of file names, strip out those that refer to a parent | ||||
214 | directory. (Does not strip symlinks, only '.', '..', and equivalents.) | ||||
215 | |||||
216 | =cut | ||||
217 | |||||
218 | sub no_upwards { | ||||
219 | my $self = shift; | ||||
220 | return grep(!/^\.{1,2}\z/s, @_); | ||||
221 | } | ||||
222 | |||||
223 | =item case_tolerant | ||||
224 | |||||
225 | Returns a true or false value indicating, respectively, that alphabetic | ||||
226 | is not or is significant when comparing file specifications. | ||||
227 | |||||
228 | =cut | ||||
229 | |||||
230 | sub case_tolerant { 0 } | ||||
231 | 2 | 1.30ms | 2 | 57µs | # spent 31µs (5+26) within File::Spec::Unix::BEGIN@231 which was called:
# once (5µs+26µs) by Pod::Usage::BEGIN@19 at line 231 # spent 31µs making 1 call to File::Spec::Unix::BEGIN@231
# spent 26µs making 1 call to constant::import |
232 | |||||
233 | =item file_name_is_absolute | ||||
234 | |||||
235 | Takes as argument a path and returns true if it is an absolute path. | ||||
236 | |||||
237 | This does not consult the local filesystem on Unix, Win32, OS/2 or Mac | ||||
238 | OS (Classic). It does consult the working environment for VMS (see | ||||
239 | L<File::Spec::VMS/file_name_is_absolute>). | ||||
240 | |||||
241 | =cut | ||||
242 | |||||
243 | sub file_name_is_absolute { | ||||
244 | my ($self,$file) = @_; | ||||
245 | return scalar($file =~ m:^/:s); | ||||
246 | } | ||||
247 | |||||
248 | =item path | ||||
249 | |||||
250 | Takes no argument, returns the environment variable PATH as an array. | ||||
251 | |||||
252 | =cut | ||||
253 | |||||
254 | sub path { | ||||
255 | return () unless exists $ENV{PATH}; | ||||
256 | my @path = split(':', $ENV{PATH}); | ||||
257 | foreach (@path) { $_ = '.' if $_ eq '' } | ||||
258 | return @path; | ||||
259 | } | ||||
260 | |||||
261 | =item join | ||||
262 | |||||
263 | join is the same as catfile. | ||||
264 | |||||
265 | =cut | ||||
266 | |||||
267 | sub join { | ||||
268 | my $self = shift; | ||||
269 | return $self->catfile(@_); | ||||
270 | } | ||||
271 | |||||
272 | =item splitpath | ||||
273 | |||||
274 | ($volume,$directories,$file) = File::Spec->splitpath( $path ); | ||||
275 | ($volume,$directories,$file) = File::Spec->splitpath( $path, | ||||
276 | $no_file ); | ||||
277 | |||||
278 | Splits a path into volume, directory, and filename portions. On systems | ||||
279 | with no concept of volume, returns '' for volume. | ||||
280 | |||||
281 | For systems with no syntax differentiating filenames from directories, | ||||
282 | assumes that the last file is a path unless $no_file is true or a | ||||
283 | trailing separator or /. or /.. is present. On Unix this means that $no_file | ||||
284 | true makes this return ( '', $path, '' ). | ||||
285 | |||||
286 | The directory portion may or may not be returned with a trailing '/'. | ||||
287 | |||||
288 | The results can be passed to L</catpath()> to get back a path equivalent to | ||||
289 | (usually identical to) the original path. | ||||
290 | |||||
291 | =cut | ||||
292 | |||||
293 | sub splitpath { | ||||
294 | my ($self,$path, $nofile) = @_; | ||||
295 | |||||
296 | my ($volume,$directory,$file) = ('','',''); | ||||
297 | |||||
298 | if ( $nofile ) { | ||||
299 | $directory = $path; | ||||
300 | } | ||||
301 | else { | ||||
302 | $path =~ m|^ ( (?: .* / (?: \.\.?\z )? )? ) ([^/]*) |xs; | ||||
303 | $directory = $1; | ||||
304 | $file = $2; | ||||
305 | } | ||||
306 | |||||
307 | return ($volume,$directory,$file); | ||||
308 | } | ||||
309 | |||||
310 | |||||
311 | =item splitdir | ||||
312 | |||||
313 | The opposite of L</catdir()>. | ||||
314 | |||||
315 | @dirs = File::Spec->splitdir( $directories ); | ||||
316 | |||||
317 | $directories must be only the directory portion of the path on systems | ||||
318 | that have the concept of a volume or that have path syntax that differentiates | ||||
319 | files from directories. | ||||
320 | |||||
321 | Unlike just splitting the directories on the separator, empty | ||||
322 | directory names (C<''>) can be returned, because these are significant | ||||
323 | on some OSs. | ||||
324 | |||||
325 | On Unix, | ||||
326 | |||||
327 | File::Spec->splitdir( "/a/b//c/" ); | ||||
328 | |||||
329 | Yields: | ||||
330 | |||||
331 | ( '', 'a', 'b', '', 'c', '' ) | ||||
332 | |||||
333 | =cut | ||||
334 | |||||
335 | sub splitdir { | ||||
336 | return split m|/|, $_[1], -1; # Preserve trailing fields | ||||
337 | } | ||||
338 | |||||
339 | |||||
340 | =item catpath() | ||||
341 | |||||
342 | Takes volume, directory and file portions and returns an entire path. Under | ||||
343 | Unix, $volume is ignored, and directory and file are concatenated. A '/' is | ||||
344 | inserted if needed (though if the directory portion doesn't start with | ||||
345 | '/' it is not added). On other OSs, $volume is significant. | ||||
346 | |||||
347 | =cut | ||||
348 | |||||
349 | sub catpath { | ||||
350 | my ($self,$volume,$directory,$file) = @_; | ||||
351 | |||||
352 | if ( $directory ne '' && | ||||
353 | $file ne '' && | ||||
354 | substr( $directory, -1 ) ne '/' && | ||||
355 | substr( $file, 0, 1 ) ne '/' | ||||
356 | ) { | ||||
357 | $directory .= "/$file" ; | ||||
358 | } | ||||
359 | else { | ||||
360 | $directory .= $file ; | ||||
361 | } | ||||
362 | |||||
363 | return $directory ; | ||||
364 | } | ||||
365 | |||||
366 | =item abs2rel | ||||
367 | |||||
368 | Takes a destination path and an optional base path returns a relative path | ||||
369 | from the base path to the destination path: | ||||
370 | |||||
371 | $rel_path = File::Spec->abs2rel( $path ) ; | ||||
372 | $rel_path = File::Spec->abs2rel( $path, $base ) ; | ||||
373 | |||||
374 | If $base is not present or '', then L<cwd()|Cwd> is used. If $base is | ||||
375 | relative, then it is converted to absolute form using | ||||
376 | L</rel2abs()>. This means that it is taken to be relative to | ||||
377 | L<cwd()|Cwd>. | ||||
378 | |||||
379 | On systems that have a grammar that indicates filenames, this ignores the | ||||
380 | $base filename. Otherwise all path components are assumed to be | ||||
381 | directories. | ||||
382 | |||||
383 | If $path is relative, it is converted to absolute form using L</rel2abs()>. | ||||
384 | This means that it is taken to be relative to L<cwd()|Cwd>. | ||||
385 | |||||
386 | No checks against the filesystem are made, so the result may not be correct if | ||||
387 | C<$base> contains symbolic links. (Apply | ||||
388 | L<Cwd::abs_path()|Cwd/abs_path> beforehand if that | ||||
389 | is a concern.) On VMS, there is interaction with the working environment, as | ||||
390 | logicals and macros are expanded. | ||||
391 | |||||
392 | Based on code written by Shigio Yamaguchi. | ||||
393 | |||||
394 | =cut | ||||
395 | |||||
396 | sub abs2rel { | ||||
397 | my($self,$path,$base) = @_; | ||||
398 | $base = Cwd::getcwd() unless defined $base and length $base; | ||||
399 | |||||
400 | ($path, $base) = map $self->canonpath($_), $path, $base; | ||||
401 | |||||
402 | my $path_directories; | ||||
403 | my $base_directories; | ||||
404 | |||||
405 | if (grep $self->file_name_is_absolute($_), $path, $base) { | ||||
406 | ($path, $base) = map $self->rel2abs($_), $path, $base; | ||||
407 | |||||
408 | my ($path_volume) = $self->splitpath($path, 1); | ||||
409 | my ($base_volume) = $self->splitpath($base, 1); | ||||
410 | |||||
411 | # Can't relativize across volumes | ||||
412 | return $path unless $path_volume eq $base_volume; | ||||
413 | |||||
414 | $path_directories = ($self->splitpath($path, 1))[1]; | ||||
415 | $base_directories = ($self->splitpath($base, 1))[1]; | ||||
416 | |||||
417 | # For UNC paths, the user might give a volume like //foo/bar that | ||||
418 | # strictly speaking has no directory portion. Treat it as if it | ||||
419 | # had the root directory for that volume. | ||||
420 | if (!length($base_directories) and $self->file_name_is_absolute($base)) { | ||||
421 | $base_directories = $self->rootdir; | ||||
422 | } | ||||
423 | } | ||||
424 | else { | ||||
425 | my $wd= ($self->splitpath(Cwd::getcwd(), 1))[1]; | ||||
426 | $path_directories = $self->catdir($wd, $path); | ||||
427 | $base_directories = $self->catdir($wd, $base); | ||||
428 | } | ||||
429 | |||||
430 | # Now, remove all leading components that are the same | ||||
431 | my @pathchunks = $self->splitdir( $path_directories ); | ||||
432 | my @basechunks = $self->splitdir( $base_directories ); | ||||
433 | |||||
434 | if ($base_directories eq $self->rootdir) { | ||||
435 | return $self->curdir if $path_directories eq $self->rootdir; | ||||
436 | shift @pathchunks; | ||||
437 | return $self->canonpath( $self->catpath('', $self->catdir( @pathchunks ), '') ); | ||||
438 | } | ||||
439 | |||||
440 | my @common; | ||||
441 | while (@pathchunks && @basechunks && $self->_same($pathchunks[0], $basechunks[0])) { | ||||
442 | push @common, shift @pathchunks ; | ||||
443 | shift @basechunks ; | ||||
444 | } | ||||
445 | return $self->curdir unless @pathchunks || @basechunks; | ||||
446 | |||||
447 | # @basechunks now contains the directories the resulting relative path | ||||
448 | # must ascend out of before it can descend to $path_directory. If there | ||||
449 | # are updir components, we must descend into the corresponding directories | ||||
450 | # (this only works if they are no symlinks). | ||||
451 | my @reverse_base; | ||||
452 | while( defined(my $dir= shift @basechunks) ) { | ||||
453 | if( $dir ne $self->updir ) { | ||||
454 | unshift @reverse_base, $self->updir; | ||||
455 | push @common, $dir; | ||||
456 | } | ||||
457 | elsif( @common ) { | ||||
458 | if( @reverse_base && $reverse_base[0] eq $self->updir ) { | ||||
459 | shift @reverse_base; | ||||
460 | pop @common; | ||||
461 | } | ||||
462 | else { | ||||
463 | unshift @reverse_base, pop @common; | ||||
464 | } | ||||
465 | } | ||||
466 | } | ||||
467 | my $result_dirs = $self->catdir( @reverse_base, @pathchunks ); | ||||
468 | return $self->canonpath( $self->catpath('', $result_dirs, '') ); | ||||
469 | } | ||||
470 | |||||
471 | sub _same { | ||||
472 | $_[1] eq $_[2]; | ||||
473 | } | ||||
474 | |||||
475 | =item rel2abs() | ||||
476 | |||||
477 | Converts a relative path to an absolute path. | ||||
478 | |||||
479 | $abs_path = File::Spec->rel2abs( $path ) ; | ||||
480 | $abs_path = File::Spec->rel2abs( $path, $base ) ; | ||||
481 | |||||
482 | If $base is not present or '', then L<cwd()|Cwd> is used. If $base is | ||||
483 | relative, then it is converted to absolute form using | ||||
484 | L</rel2abs()>. This means that it is taken to be relative to | ||||
485 | L<cwd()|Cwd>. | ||||
486 | |||||
487 | On systems that have a grammar that indicates filenames, this ignores | ||||
488 | the $base filename. Otherwise all path components are assumed to be | ||||
489 | directories. | ||||
490 | |||||
491 | If $path is absolute, it is cleaned up and returned using L</canonpath()>. | ||||
492 | |||||
493 | No checks against the filesystem are made. On VMS, there is | ||||
494 | interaction with the working environment, as logicals and | ||||
495 | macros are expanded. | ||||
496 | |||||
497 | Based on code written by Shigio Yamaguchi. | ||||
498 | |||||
499 | =cut | ||||
500 | |||||
501 | sub rel2abs { | ||||
502 | my ($self,$path,$base ) = @_; | ||||
503 | |||||
504 | # Clean up $path | ||||
505 | if ( ! $self->file_name_is_absolute( $path ) ) { | ||||
506 | # Figure out the effective $base and clean it up. | ||||
507 | if ( !defined( $base ) || $base eq '' ) { | ||||
508 | $base = Cwd::getcwd(); | ||||
509 | } | ||||
510 | elsif ( ! $self->file_name_is_absolute( $base ) ) { | ||||
511 | $base = $self->rel2abs( $base ) ; | ||||
512 | } | ||||
513 | else { | ||||
514 | $base = $self->canonpath( $base ) ; | ||||
515 | } | ||||
516 | |||||
517 | # Glom them together | ||||
518 | $path = $self->catdir( $base, $path ) ; | ||||
519 | } | ||||
520 | |||||
521 | return $self->canonpath( $path ) ; | ||||
522 | } | ||||
523 | |||||
524 | =back | ||||
525 | |||||
526 | =head1 COPYRIGHT | ||||
527 | |||||
528 | Copyright (c) 2004 by the Perl 5 Porters. All rights reserved. | ||||
529 | |||||
530 | This program is free software; you can redistribute it and/or modify | ||||
531 | it under the same terms as Perl itself. | ||||
532 | |||||
533 | Please submit bug reports at L<https://github.com/Perl/perl5/issues>. | ||||
534 | |||||
535 | =head1 SEE ALSO | ||||
536 | |||||
537 | L<File::Spec> | ||||
538 | |||||
539 | =cut | ||||
540 | |||||
541 | # Internal method to reduce xx\..\yy -> yy | ||||
542 | sub _collapse { | ||||
543 | my($fs, $path) = @_; | ||||
544 | |||||
545 | my $updir = $fs->updir; | ||||
546 | my $curdir = $fs->curdir; | ||||
547 | |||||
548 | my($vol, $dirs, $file) = $fs->splitpath($path); | ||||
549 | my @dirs = $fs->splitdir($dirs); | ||||
550 | pop @dirs if @dirs && $dirs[-1] eq ''; | ||||
551 | |||||
552 | my @collapsed; | ||||
553 | foreach my $dir (@dirs) { | ||||
554 | if( $dir eq $updir and # if we have an updir | ||||
555 | @collapsed and # and something to collapse | ||||
556 | length $collapsed[-1] and # and its not the rootdir | ||||
557 | $collapsed[-1] ne $updir and # nor another updir | ||||
558 | $collapsed[-1] ne $curdir # nor the curdir | ||||
559 | ) | ||||
560 | { # then | ||||
561 | pop @collapsed; # collapse | ||||
562 | } | ||||
563 | else { # else | ||||
564 | push @collapsed, $dir; # just hang onto it | ||||
565 | } | ||||
566 | } | ||||
567 | |||||
568 | return $fs->catpath($vol, | ||||
569 | $fs->catdir(@collapsed), | ||||
570 | $file | ||||
571 | ); | ||||
572 | } | ||||
573 | |||||
574 | |||||
575 | 1 | 8µs | 1; | ||
# spent 71µs within File::Spec::Unix::canonpath which was called 60 times, avg 1µs/call:
# 28 times (23µs+0s) by File::Spec::Unix::catdir at line 462 of File/ShareDir.pm, avg 821ns/call
# 14 times (15µs+0s) by Path::Tiny::_pathify at line 288 of Path/Tiny.pm, avg 1µs/call
# 14 times (13µs+0s) by File::Spec::Unix::catdir at line 190 of File/ShareDir.pm, avg 929ns/call
# 2 times (18µs+0s) by File::Spec::Unix::catdir or File::Spec::Unix::catfile at line 43 of Mojo/Util.pm, avg 9µs/call
# 2 times (2µs+0s) by File::Spec::Unix::catdir or File::Spec::Unix::catfile at line 113 of Module/Load.pm, avg 1µs/call | |||||
# spent 334µs (297+37) within File::Spec::Unix::catdir which was called 44 times, avg 8µs/call:
# 28 times (182µs+23µs) by List::MoreUtils::XS::firstres at line 462 of File/ShareDir.pm, avg 7µs/call
# 14 times (99µs+13µs) by File::ShareDir::_dist_dir_new at line 190 of File/ShareDir.pm, avg 8µs/call
# once (11µs+1µs) by File::Spec::Unix::catfile at line 43 of Mojo/Util.pm
# once (5µs+0s) by File::Spec::Unix::catfile at line 113 of Module/Load.pm | |||||
# spent 84µs (48+36) within File::Spec::Unix::catfile which was called 2 times, avg 42µs/call:
# once (39µs+29µs) by Mojo::URL::BEGIN@2 at line 43 of Mojo/Util.pm
# once (9µs+7µs) by Module::Load::_to_file at line 113 of Module/Load.pm |