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For /usr/local/bin/sa-learn
  Run on Sun Nov 5 03:09:29 2017
Reported on Mon Nov 6 13:20:45 2017

Filename/usr/local/lib/perl5/5.24/mach/File/Spec/Unix.pm
StatementsExecuted 19358 statements in 276ms
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
368411120ms256msFile::Spec::Unix::::rel2absFile::Spec::Unix::rel2abs
37514370.9ms112msFile::Spec::Unix::::file_name_is_absoluteFile::Spec::Unix::file_name_is_absolute
38102142.0ms42.0msFile::Spec::Unix::::CORE:matchFile::Spec::Unix::CORE:match (opcode)
40515226.6ms26.6msFile::Spec::Unix::::canonpathFile::Spec::Unix::canonpath (xsub)
1792118.6ms22.3msFile::Spec::Unix::::catfileFile::Spec::Unix::catfile (xsub)
59223.56ms4.16msFile::Spec::Unix::::splitpathFile::Spec::Unix::splitpath
179212.30ms2.86msFile::Spec::Unix::::catdirFile::Spec::Unix::catdir (xsub)
58111.32ms1.32msFile::Spec::Unix::::catpathFile::Spec::Unix::catpath
1611419µs1.09msFile::Spec::Unix::::tmpdirFile::Spec::Unix::tmpdir
1611401µs401µsFile::Spec::Unix::::_cached_tmpdirFile::Spec::Unix::_cached_tmpdir
111142µs253µsFile::Spec::Unix::::_tmpdirFile::Spec::Unix::_tmpdir
11171µs71µsFile::Spec::Unix::::pathFile::Spec::Unix::path
11147µs55µsFile::Spec::Unix::::BEGIN@3File::Spec::Unix::BEGIN@3
11147µs47µsFile::Spec::Unix::::CORE:ftdirFile::Spec::Unix::CORE:ftdir (opcode)
11124µs221µsFile::Spec::Unix::::BEGIN@130File::Spec::Unix::BEGIN@130
11121µs154µsFile::Spec::Unix::::BEGIN@223File::Spec::Unix::BEGIN@223
11120µs147µsFile::Spec::Unix::::BEGIN@139File::Spec::Unix::BEGIN@139
11119µs146µsFile::Spec::Unix::::BEGIN@148File::Spec::Unix::BEGIN@148
11119µs148µsFile::Spec::Unix::::BEGIN@245File::Spec::Unix::BEGIN@245
11119µs19µsFile::Spec::Unix::::_cache_tmpdirFile::Spec::Unix::_cache_tmpdir
11119µs63µsFile::Spec::Unix::::BEGIN@182File::Spec::Unix::BEGIN@182
11118µs75µsFile::Spec::Unix::::BEGIN@4File::Spec::Unix::BEGIN@4
1116µs6µsFile::Spec::Unix::::CORE:ftewriteFile::Spec::Unix::CORE:ftewrite (opcode)
0000s0sFile::Spec::Unix::::_collapseFile::Spec::Unix::_collapse
0000s0sFile::Spec::Unix::::_cwdFile::Spec::Unix::_cwd
0000s0sFile::Spec::Unix::::_pp_canonpathFile::Spec::Unix::_pp_canonpath
0000s0sFile::Spec::Unix::::_pp_catdirFile::Spec::Unix::_pp_catdir
0000s0sFile::Spec::Unix::::_pp_catfileFile::Spec::Unix::_pp_catfile
0000s0sFile::Spec::Unix::::_sameFile::Spec::Unix::_same
0000s0sFile::Spec::Unix::::abs2relFile::Spec::Unix::abs2rel
0000s0sFile::Spec::Unix::::case_tolerantFile::Spec::Unix::case_tolerant
0000s0sFile::Spec::Unix::::curdirFile::Spec::Unix::curdir
0000s0sFile::Spec::Unix::::devnullFile::Spec::Unix::devnull
0000s0sFile::Spec::Unix::::joinFile::Spec::Unix::join
0000s0sFile::Spec::Unix::::no_upwardsFile::Spec::Unix::no_upwards
0000s0sFile::Spec::Unix::::rootdirFile::Spec::Unix::rootdir
0000s0sFile::Spec::Unix::::splitdirFile::Spec::Unix::splitdir
0000s0sFile::Spec::Unix::::updirFile::Spec::Unix::updir
Call graph for these subroutines as a Graphviz dot language file.
Line State
ments		 Time
on line		 Calls Time
in subs		 Code
1package File::Spec::Unix;
2
3259µs263µs
# spent 55µs (47+8) within File::Spec::Unix::BEGIN@3 which was called: # once (47µs+8µs) by Pod::Usage::BEGIN@22 at line 3
use strict;
# spent 55µs making 1 call to File::Spec::Unix::BEGIN@3 # spent 8µs making 1 call to strict::import
42952µs2131µs
# spent 75µs (18+57) within File::Spec::Unix::BEGIN@4 which was called: # once (18µs+57µs) by Pod::Usage::BEGIN@22 at line 4
use vars qw($VERSION);
# spent 75µs making 1 call to File::Spec::Unix::BEGIN@4 # spent 57µs making 1 call to vars::import
5
612µs$VERSION = '3.63_01';
712µsmy $xs_version = $VERSION;
814µs$VERSION =~ tr/_//d;
9
10#dont try to load XSLoader and DynaLoader only to ultimately fail on miniperl
1119µsif(!defined &canonpath && defined &DynaLoader::boot_DynaLoader) {
1213µs eval {#eval is questionable since we are handling potential errors like
13 #"Cwd object version 3.48 does not match bootstrap parameter 3.50
14 #at lib/DynaLoader.pm line 216." by having this eval
1516µs if ( $] >= 5.006 ) {
1612µs require XSLoader;
171391µs1375µs XSLoader::load("Cwd", $xs_version);
# spent 375µs making 1 call to XSLoader::load
18 } else {
19 require Cwd;
20 }
21 };
22}
23
24=head1 NAME
25
26File::Spec::Unix - File::Spec for Unix, base for other File::Spec modules
27
28=head1 SYNOPSIS
29
30 require File::Spec::Unix; # Done automatically by File::Spec
31
32=head1 DESCRIPTION
33
34Methods for manipulating file specifications. Other File::Spec
35modules, such as File::Spec::Mac, inherit from File::Spec::Unix and
36override specific methods.
37
38=head1 METHODS
39
40=over 2
41
42=item canonpath()
43
44No physical check on the filesystem, but a logical cleanup of a
45path. On UNIX eliminates successive slashes and successive "/.".
46
47 $cpath = File::Spec->canonpath( $path ) ;
48
49Note that this does *not* collapse F<x/../y> sections into F<y>. This
50is by design. If F</foo> on your system is a symlink to F</bar/baz>,
51then F</foo/../quux> is actually F</bar/quux>, not F</quux> as a naive
52F<../>-removal would give you. If you want to do this kind of
53processing, you probably want C<Cwd>'s C<realpath()> function to
54actually traverse the filesystem cleaning up paths like this.
55
56=cut
57
58sub _pp_canonpath {
59 my ($self,$path) = @_;
60 return unless defined $path;
61
62 # Handle POSIX-style node names beginning with double slash (qnx, nto)
63 # (POSIX says: "a pathname that begins with two successive slashes
64 # may be interpreted in an implementation-defined manner, although
65 # more than two leading slashes shall be treated as a single slash.")
66 my $node = '';
67 my $double_slashes_special = $^O eq 'qnx' || $^O eq 'nto';
68
69
70 if ( $double_slashes_special
71 && ( $path =~ s{^(//[^/]+)/?\z}{}s || $path =~ s{^(//[^/]+)/}{/}s ) ) {
72 $node = $1;
73 }
74 # This used to be
75 # $path =~ s|/+|/|g unless ($^O eq 'cygwin');
76 # but that made tests 29, 30, 35, 46, and 213 (as of #13272) to fail
77 # (Mainly because trailing "" directories didn't get stripped).
78 # Why would cygwin avoid collapsing multiple slashes into one? --jhi
79 $path =~ s|/{2,}|/|g; # xx////xx -> xx/xx
80 $path =~ s{(?:/\.)+(?:/|\z)}{/}g; # xx/././xx -> xx/xx
81 $path =~ s|^(?:\./)+||s unless $path eq "./"; # ./xx -> xx
82 $path =~ s|^/(?:\.\./)+|/|; # /../../xx -> xx
83 $path =~ s|^/\.\.$|/|; # /.. -> /
84 $path =~ s|/\z|| unless $path eq "/"; # xx/ -> xx
85 return "$node$path";
86}
8712µs*canonpath = \&_pp_canonpath unless defined &canonpath;
88
89=item catdir()
90
91Concatenate two or more directory names to form a complete path ending
92with a directory. But remove the trailing slash from the resulting
93string, because it doesn't look good, isn't necessary and confuses
94OS2. Of course, if this is the root directory, don't cut off the
95trailing slash :-)
96
97=cut
98
99sub _pp_catdir {
100 my $self = shift;
101
102 $self->canonpath(join('/', @_, '')); # '' because need a trailing '/'
103}
10412µs*catdir = \&_pp_catdir unless defined &catdir;
105
106=item catfile
107
108Concatenate one or more directory names and a filename to form a
109complete path ending with a filename
110
111=cut
112
113sub _pp_catfile {
114 my $self = shift;
115 my $file = $self->canonpath(pop @_);
116 return $file unless @_;
117 my $dir = $self->catdir(@_);
118 $dir .= "/" unless substr($dir,-1) eq "/";
119 return $dir.$file;
120}
12112µs*catfile = \&_pp_catfile unless defined &catfile;
122
123=item curdir
124
125Returns a string representation of the current directory. "." on UNIX.
126
127=cut
128
129sub curdir { '.' }
1302106µs2417µs
# spent 221µs (24+196) within File::Spec::Unix::BEGIN@130 which was called: # once (24µs+196µs) by Pod::Usage::BEGIN@22 at line 130
use constant _fn_curdir => ".";
# spent 221µs making 1 call to File::Spec::Unix::BEGIN@130 # spent 196µs making 1 call to constant::import
131
132=item devnull
133
134Returns a string representation of the null device. "/dev/null" on UNIX.
135
136=cut
137
138sub devnull { '/dev/null' }
1392103µs2273µs
# spent 147µs (20+127) within File::Spec::Unix::BEGIN@139 which was called: # once (20µs+127µs) by Pod::Usage::BEGIN@22 at line 139
use constant _fn_devnull => "/dev/null";
# spent 147µs making 1 call to File::Spec::Unix::BEGIN@139 # spent 127µs making 1 call to constant::import
140
141=item rootdir
142
143Returns a string representation of the root directory. "/" on UNIX.
144
145=cut
146
147sub rootdir { '/' }
1482282µs2273µs
# spent 146µs (19+127) within File::Spec::Unix::BEGIN@148 which was called: # once (19µs+127µs) by Pod::Usage::BEGIN@22 at line 148
use constant _fn_rootdir => "/";
# spent 146µs making 1 call to File::Spec::Unix::BEGIN@148 # spent 127µs making 1 call to constant::import
149
150=item tmpdir
151
152Returns a string representation of the first writable directory from
153the following list or the current directory if none from the list are
154writable:
155
156 $ENV{TMPDIR}
157 /tmp
158
159If running under taint mode, and if $ENV{TMPDIR}
160is tainted, it is not used.
161
162=cut
163
16412µsmy ($tmpdir, %tmpenv);
165# Cache and return the calculated tmpdir, recording which env vars
166# determined it.
167
# spent 19µs within File::Spec::Unix::_cache_tmpdir which was called: # once (19µs+0s) by File::Spec::Unix::tmpdir at line 213
sub _cache_tmpdir {
168112µs @tmpenv{@_[2..$#_]} = @ENV{@_[2..$#_]};
169111µs return $tmpdir = $_[1];
170}
171# Retrieve the cached tmpdir, checking first whether relevant env vars have
172# changed and invalidated the cache.
173
# spent 401µs within File::Spec::Unix::_cached_tmpdir which was called 16 times, avg 25µs/call: # 16 times (401µs+0s) by File::Spec::Unix::tmpdir at line 211, avg 25µs/call
sub _cached_tmpdir {
1741631µs shift;
17516119µs local $^W;
17616126µs return if grep $ENV{$_} ne $tmpenv{$_}, @_;
17716181µs return $tmpdir;
178}
179
# spent 253µs (142+112) within File::Spec::Unix::_tmpdir which was called: # once (142µs+112µs) by File::Spec::Unix::tmpdir at line 213
sub _tmpdir {
18012µs my $self = shift;
18116µs my @dirlist = @_;
1825564µs2107µs
# spent 63µs (19+44) within File::Spec::Unix::BEGIN@182 which was called: # once (19µs+44µs) by Pod::Usage::BEGIN@22 at line 182
my $taint = do { no strict 'refs'; ${"\cTAINT"} };
# spent 63µs making 1 call to File::Spec::Unix::BEGIN@182 # spent 44µs making 1 call to strict::unimport
18314µs if ($taint) { # Check for taint mode on perl >= 5.8.0
18414µs require Scalar::Util;
185368µs231µs @dirlist = grep { ! Scalar::Util::tainted($_) } @dirlist;
# spent 31µs making 2 calls to Scalar::Util::tainted, avg 16µs/call
186 }
187 elsif ($] < 5.007) { # No ${^TAINT} before 5.8
188 @dirlist = grep { eval { eval('1'.substr $_,0,0) } } @dirlist;
189 }
190
19115µs foreach (@dirlist) {
192279µs252µs next unless defined && -d && -w _;
# spent 47µs making 1 call to File::Spec::Unix::CORE:ftdir # spent 6µs making 1 call to File::Spec::Unix::CORE:ftewrite
19312µs $tmpdir = $_;
19412µs last;
195 }
19612µs $tmpdir = $self->curdir unless defined $tmpdir;
197118µs16µs $tmpdir = defined $tmpdir && $self->canonpath($tmpdir);
# spent 6µs making 1 call to File::Spec::Unix::canonpath
198110µs122µs if ( !$self->file_name_is_absolute($tmpdir) ) {
# spent 22µs making 1 call to File::Spec::Unix::file_name_is_absolute
199 # See [perl #120593] for the full details
200 # If possible, return a full path, rather than '.' or 'lib', but
201 # jump through some hoops to avoid returning a tainted value.
202 ($tmpdir) = grep {
203 $taint ? ! Scalar::Util::tainted($_) :
204 $] < 5.007 ? eval { eval('1'.substr $_,0,0) } : 1
205 } $self->rel2abs($tmpdir), $tmpdir;
206 }
207112µs return $tmpdir;
208}
209
210
# spent 1.09ms (419µs+674µs) within File::Spec::Unix::tmpdir which was called 16 times, avg 68µs/call: # 16 times (419µs+674µs) by Mail::SpamAssassin::Util::secure_tmpfile at line 1100 of Mail/SpamAssassin/Util.pm, avg 68µs/call
sub tmpdir {
21116194µs16401µs my $cached = $_[0]->_cached_tmpdir('TMPDIR');
# spent 401µs making 16 calls to File::Spec::Unix::_cached_tmpdir, avg 25µs/call
21216139µs return $cached if defined $cached;
213138µs2272µs $_[0]->_cache_tmpdir($_[0]->_tmpdir( $ENV{TMPDIR}, "/tmp" ), 'TMPDIR');
# spent 253µs making 1 call to File::Spec::Unix::_tmpdir # spent 19µs making 1 call to File::Spec::Unix::_cache_tmpdir
214}
215
216=item updir
217
218Returns a string representation of the parent directory. ".." on UNIX.
219
220=cut
221
222sub updir { '..' }
2232193µs2288µs
# spent 154µs (21+133) within File::Spec::Unix::BEGIN@223 which was called: # once (21µs+133µs) by Pod::Usage::BEGIN@22 at line 223
use constant _fn_updir => "..";
# spent 154µs making 1 call to File::Spec::Unix::BEGIN@223 # spent 133µs making 1 call to constant::import
224
225=item no_upwards
226
227Given a list of file names, strip out those that refer to a parent
228directory. (Does not strip symlinks, only '.', '..', and equivalents.)
229
230=cut
231
232sub no_upwards {
233 my $self = shift;
234 return grep(!/^\.{1,2}\z/s, @_);
235}
236
237=item case_tolerant
238
239Returns a true or false value indicating, respectively, that alphabetic
240is not or is significant when comparing file specifications.
241
242=cut
243
244sub case_tolerant { 0 }
24522.14ms2277µs
# spent 148µs (19+129) within File::Spec::Unix::BEGIN@245 which was called: # once (19µs+129µs) by Pod::Usage::BEGIN@22 at line 245
use constant _fn_case_tolerant => 0;
# spent 148µs making 1 call to File::Spec::Unix::BEGIN@245 # spent 129µs making 1 call to constant::import
246
247=item file_name_is_absolute
248
249Takes as argument a path and returns true if it is an absolute path.
250
251This does not consult the local filesystem on Unix, Win32, OS/2 or Mac
252OS (Classic). It does consult the working environment for VMS (see
253L<File::Spec::VMS/file_name_is_absolute>).
254
255=cut
256
257
# spent 112ms (70.9+41.4) within File::Spec::Unix::file_name_is_absolute which was called 3751 times, avg 30µs/call: # 3684 times (69.8ms+41.2ms) by File::Spec::Unix::rel2abs at line 519, avg 30µs/call # 58 times (1.05ms+181µs) by Mail::SpamAssassin::Conf::Parser::fix_path_relative_to_current_file at line 1501 of Mail/SpamAssassin/Conf/Parser.pm, avg 21µs/call # 8 times (95µs+23µs) by Mail::SpamAssassin::Util::clean_path_in_taint_mode at line 159 of Mail/SpamAssassin/Util.pm, avg 15µs/call # once (17µs+5µs) by File::Spec::Unix::_tmpdir at line 198
sub file_name_is_absolute {
258375110.9ms my ($self,$file) = @_;
2593751127ms375141.4ms return scalar($file =~ m:^/:s);
# spent 41.4ms making 3751 calls to File::Spec::Unix::CORE:match, avg 11µs/call
260}
261
262=item path
263
264Takes no argument, returns the environment variable PATH as an array.
265
266=cut
267
268
# spent 71µs within File::Spec::Unix::path which was called: # once (71µs+0s) by Mail::SpamAssassin::Util::clean_path_in_taint_mode at line 150 of Mail/SpamAssassin/Util.pm
sub path {
26913µs return () unless exists $ENV{PATH};
270123µs my @path = split(':', $ENV{PATH});
271931µs foreach (@path) { $_ = '.' if $_ eq '' }
272117µs return @path;
273}
274
275=item join
276
277join is the same as catfile.
278
279=cut
280
281sub join {
282 my $self = shift;
283 return $self->catfile(@_);
284}
285
286=item splitpath
287
288 ($volume,$directories,$file) = File::Spec->splitpath( $path );
289 ($volume,$directories,$file) = File::Spec->splitpath( $path,
290 $no_file );
291
292Splits a path into volume, directory, and filename portions. On systems
293with no concept of volume, returns '' for volume.
294
295For systems with no syntax differentiating filenames from directories,
296assumes that the last file is a path unless $no_file is true or a
297trailing separator or /. or /.. is present. On Unix this means that $no_file
298true makes this return ( '', $path, '' ).
299
300The directory portion may or may not be returned with a trailing '/'.
301
302The results can be passed to L</catpath()> to get back a path equivalent to
303(usually identical to) the original path.
304
305=cut
306
307
# spent 4.16ms (3.56+597µs) within File::Spec::Unix::splitpath which was called 59 times, avg 70µs/call: # 58 times (3.51ms+584µs) by Mail::SpamAssassin::Conf::Parser::fix_path_relative_to_current_file at line 1502 of Mail/SpamAssassin/Conf/Parser.pm, avg 71µs/call # once (49µs+13µs) by main::BEGIN@41 at line 42 of /usr/local/bin/sa-learn
sub splitpath {
30859311µs my ($self,$path, $nofile) = @_;
309
31059211µs my ($volume,$directory,$file) = ('','','');
311
31259211µs if ( $nofile ) {
313 $directory = $path;
314 }
315 else {
31659994µs59597µs $path =~ m|^ ( (?: .* / (?: \.\.?\z )? )? ) ([^/]*) |xs;
# spent 597µs making 59 calls to File::Spec::Unix::CORE:match, avg 10µs/call
31759213µs $directory = $1;
31859201µs $file = $2;
319 }
320
321592.10ms return ($volume,$directory,$file);
322}
323
324
325=item splitdir
326
327The opposite of L</catdir()>.
328
329 @dirs = File::Spec->splitdir( $directories );
330
331$directories must be only the directory portion of the path on systems
332that have the concept of a volume or that have path syntax that differentiates
333files from directories.
334
335Unlike just splitting the directories on the separator, empty
336directory names (C<''>) can be returned, because these are significant
337on some OSs.
338
339On Unix,
340
341 File::Spec->splitdir( "/a/b//c/" );
342
343Yields:
344
345 ( '', 'a', 'b', '', 'c', '' )
346
347=cut
348
349sub splitdir {
350 return split m|/|, $_[1], -1; # Preserve trailing fields
351}
352
353
354=item catpath()
355
356Takes volume, directory and file portions and returns an entire path. Under
357Unix, $volume is ignored, and directory and file are concatenated. A '/' is
358inserted if needed (though if the directory portion doesn't start with
359'/' it is not added). On other OSs, $volume is significant.
360
361=cut
362
363
# spent 1.32ms within File::Spec::Unix::catpath which was called 58 times, avg 23µs/call: # 58 times (1.32ms+0s) by Mail::SpamAssassin::Conf::Parser::fix_path_relative_to_current_file at line 1503 of Mail/SpamAssassin/Conf/Parser.pm, avg 23µs/call
sub catpath {
36458248µs my ($self,$volume,$directory,$file) = @_;
365
36658464µs if ( $directory ne '' &&
367 $file ne '' &&
368 substr( $directory, -1 ) ne '/' &&
369 substr( $file, 0, 1 ) ne '/'
370 ) {
371 $directory .= "/$file" ;
372 }
373 else {
37458201µs $directory .= $file ;
375 }
376
37758544µs return $directory ;
378}
379
380=item abs2rel
381
382Takes a destination path and an optional base path returns a relative path
383from the base path to the destination path:
384
385 $rel_path = File::Spec->abs2rel( $path ) ;
386 $rel_path = File::Spec->abs2rel( $path, $base ) ;
387
388If $base is not present or '', then L<cwd()|Cwd> is used. If $base is
389relative, then it is converted to absolute form using
390L</rel2abs()>. This means that it is taken to be relative to
391L<cwd()|Cwd>.
392
393On systems that have a grammar that indicates filenames, this ignores the
394$base filename. Otherwise all path components are assumed to be
395directories.
396
397If $path is relative, it is converted to absolute form using L</rel2abs()>.
398This means that it is taken to be relative to L<cwd()|Cwd>.
399
400No checks against the filesystem are made, so the result may not be correct if
401C<$base> contains symbolic links. (Apply
402L<Cwd::abs_path()|Cwd/abs_path> beforehand if that
403is a concern.) On VMS, there is interaction with the working environment, as
404logicals and macros are expanded.
405
406Based on code written by Shigio Yamaguchi.
407
408=cut
409
410sub abs2rel {
411 my($self,$path,$base) = @_;
412 $base = $self->_cwd() unless defined $base and length $base;
413
414 ($path, $base) = map $self->canonpath($_), $path, $base;
415
416 my $path_directories;
417 my $base_directories;
418
419 if (grep $self->file_name_is_absolute($_), $path, $base) {
420 ($path, $base) = map $self->rel2abs($_), $path, $base;
421
422 my ($path_volume) = $self->splitpath($path, 1);
423 my ($base_volume) = $self->splitpath($base, 1);
424
425 # Can't relativize across volumes
426 return $path unless $path_volume eq $base_volume;
427
428 $path_directories = ($self->splitpath($path, 1))[1];
429 $base_directories = ($self->splitpath($base, 1))[1];
430
431 # For UNC paths, the user might give a volume like //foo/bar that
432 # strictly speaking has no directory portion. Treat it as if it
433 # had the root directory for that volume.
434 if (!length($base_directories) and $self->file_name_is_absolute($base)) {
435 $base_directories = $self->rootdir;
436 }
437 }
438 else {
439 my $wd= ($self->splitpath($self->_cwd(), 1))[1];
440 $path_directories = $self->catdir($wd, $path);
441 $base_directories = $self->catdir($wd, $base);
442 }
443
444 # Now, remove all leading components that are the same
445 my @pathchunks = $self->splitdir( $path_directories );
446 my @basechunks = $self->splitdir( $base_directories );
447
448 if ($base_directories eq $self->rootdir) {
449 return $self->curdir if $path_directories eq $self->rootdir;
450 shift @pathchunks;
451 return $self->canonpath( $self->catpath('', $self->catdir( @pathchunks ), '') );
452 }
453
454 my @common;
455 while (@pathchunks && @basechunks && $self->_same($pathchunks[0], $basechunks[0])) {
456 push @common, shift @pathchunks ;
457 shift @basechunks ;
458 }
459 return $self->curdir unless @pathchunks || @basechunks;
460
461 # @basechunks now contains the directories the resulting relative path
462 # must ascend out of before it can descend to $path_directory. If there
463 # are updir components, we must descend into the corresponding directories
464 # (this only works if they are no symlinks).
465 my @reverse_base;
466 while( defined(my $dir= shift @basechunks) ) {
467 if( $dir ne $self->updir ) {
468 unshift @reverse_base, $self->updir;
469 push @common, $dir;
470 }
471 elsif( @common ) {
472 if( @reverse_base && $reverse_base[0] eq $self->updir ) {
473 shift @reverse_base;
474 pop @common;
475 }
476 else {
477 unshift @reverse_base, pop @common;
478 }
479 }
480 }
481 my $result_dirs = $self->catdir( @reverse_base, @pathchunks );
482 return $self->canonpath( $self->catpath('', $result_dirs, '') );
483}
484
485sub _same {
486 $_[1] eq $_[2];
487}
488
489=item rel2abs()
490
491Converts a relative path to an absolute path.
492
493 $abs_path = File::Spec->rel2abs( $path ) ;
494 $abs_path = File::Spec->rel2abs( $path, $base ) ;
495
496If $base is not present or '', then L<cwd()|Cwd> is used. If $base is
497relative, then it is converted to absolute form using
498L</rel2abs()>. This means that it is taken to be relative to
499L<cwd()|Cwd>.
500
501On systems that have a grammar that indicates filenames, this ignores
502the $base filename. Otherwise all path components are assumed to be
503directories.
504
505If $path is absolute, it is cleaned up and returned using L</canonpath()>.
506
507No checks against the filesystem are made. On VMS, there is
508interaction with the working environment, as logicals and
509macros are expanded.
510
511Based on code written by Shigio Yamaguchi.
512
513=cut
514
515
# spent 256ms (120+136) within File::Spec::Unix::rel2abs which was called 3684 times, avg 70µs/call: # 3684 times (120ms+136ms) by DB_File::tie_hash_or_array at line 265 of DB_File.pm, avg 70µs/call
sub rel2abs {
516368411.3ms my ($self,$path,$base ) = @_;
517
518 # Clean up $path
519368436.3ms3684111ms if ( ! $self->file_name_is_absolute( $path ) ) {
# spent 111ms making 3684 calls to File::Spec::Unix::file_name_is_absolute, avg 30µs/call
520 # Figure out the effective $base and clean it up.
521 if ( !defined( $base ) || $base eq '' ) {
522 $base = $self->_cwd();
523 }
524 elsif ( ! $self->file_name_is_absolute( $base ) ) {
525 $base = $self->rel2abs( $base ) ;
526 }
527 else {
528 $base = $self->canonpath( $base ) ;
529 }
530
531 # Glom them together
532 $path = $self->catdir( $base, $path ) ;
533 }
534
535368479.1ms368425.1ms return $self->canonpath( $path ) ;
# spent 25.1ms making 3684 calls to File::Spec::Unix::canonpath, avg 7µs/call
536}
537
538=back
539
540=head1 COPYRIGHT
541
542Copyright (c) 2004 by the Perl 5 Porters. All rights reserved.
543
544This program is free software; you can redistribute it and/or modify
545it under the same terms as Perl itself.
546
547Please submit bug reports and patches to perlbug@perl.org.
548
549=head1 SEE ALSO
550
551L<File::Spec>
552
553=cut
554
555# Internal routine to File::Spec, no point in making this public since
556# it is the standard Cwd interface. Most of the platform-specific
557# File::Spec subclasses use this.
558sub _cwd {
559 require Cwd;
560 Cwd::getcwd();
561}
562
563
564# Internal method to reduce xx\..\yy -> yy
565sub _collapse {
566 my($fs, $path) = @_;
567
568 my $updir = $fs->updir;
569 my $curdir = $fs->curdir;
570
571 my($vol, $dirs, $file) = $fs->splitpath($path);
572 my @dirs = $fs->splitdir($dirs);
573 pop @dirs if @dirs && $dirs[-1] eq '';
574
575 my @collapsed;
576 foreach my $dir (@dirs) {
577 if( $dir eq $updir and # if we have an updir
578 @collapsed and # and something to collapse
579 length $collapsed[-1] and # and its not the rootdir
580 $collapsed[-1] ne $updir and # nor another updir
581 $collapsed[-1] ne $curdir # nor the curdir
582 )
583 { # then
584 pop @collapsed; # collapse
585 }
586 else { # else
587 push @collapsed, $dir; # just hang onto it
588 }
589 }
590
591 return $fs->catpath($vol,
592 $fs->catdir(@collapsed),
593 $file
594 );
595}
596
597
598124µs1;
 
# spent 47µs within File::Spec::Unix::CORE:ftdir which was called: # once (47µs+0s) by File::Spec::Unix::_tmpdir at line 192
sub File::Spec::Unix::CORE:ftdir; # opcode
# spent 6µs within File::Spec::Unix::CORE:ftewrite which was called: # once (6µs+0s) by File::Spec::Unix::_tmpdir at line 192
sub File::Spec::Unix::CORE:ftewrite; # opcode
# spent 42.0ms within File::Spec::Unix::CORE:match which was called 3810 times, avg 11µs/call: # 3751 times (41.4ms+0s) by File::Spec::Unix::file_name_is_absolute at line 259, avg 11µs/call # 59 times (597µs+0s) by File::Spec::Unix::splitpath at line 316, avg 10µs/call
sub File::Spec::Unix::CORE:match; # opcode
# spent 26.6ms within File::Spec::Unix::canonpath which was called 4051 times, avg 7µs/call: # 3684 times (25.1ms+0s) by File::Spec::Unix::rel2abs at line 535, avg 7µs/call # 326 times (1.31ms+0s) by File::Spec::Unix::catdir or File::Spec::Unix::catfile at line 1746 of Mail/SpamAssassin/Util.pm, avg 4µs/call # 32 times (130µs+0s) by File::Spec::Unix::catdir or File::Spec::Unix::catfile at line 1114 of Mail/SpamAssassin/Util.pm, avg 4µs/call # 8 times (52µs+0s) by Mail::SpamAssassin::Util::clean_path_in_taint_mode at line 157 of Mail/SpamAssassin/Util.pm, avg 7µs/call # once (6µs+0s) by File::Spec::Unix::_tmpdir at line 197
sub File::Spec::Unix::canonpath; # xsub
# spent 2.86ms (2.30+553µs) within File::Spec::Unix::catdir which was called 179 times, avg 16µs/call: # 163 times (2.10ms+509µs) by File::Spec::Unix::catfile at line 1746 of Mail/SpamAssassin/Util.pm, avg 16µs/call # 16 times (198µs+44µs) by File::Spec::Unix::catfile at line 1114 of Mail/SpamAssassin/Util.pm, avg 15µs/call
sub File::Spec::Unix::catdir; # xsub
# spent 22.3ms (18.6+3.74) within File::Spec::Unix::catfile which was called 179 times, avg 125µs/call: # 163 times (18.1ms+3.42ms) by Mail::SpamAssassin::Util::avoid_db_file_locking_bug at line 1746 of Mail/SpamAssassin/Util.pm, avg 132µs/call # 16 times (441µs+327µs) by Mail::SpamAssassin::Util::secure_tmpfile at line 1114 of Mail/SpamAssassin/Util.pm, avg 48µs/call
sub File::Spec::Unix::catfile; # xsub
Report produced by the NYTProf 6.04 Perl profiler, developed by Tim Bunce based on work by Adam Kaplan and Salvador Fandiño García.