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For /usr/local/bin/sa-learn
  Run on Sun Nov 5 02:36:06 2017
Reported on Sun Nov 5 02:56:17 2017

Filename/usr/local/lib/perl5/5.24/mach/File/Spec/Unix.pm
StatementsExecuted 3283 statements in 50.4ms
Subroutines
Calls P F Exclusive
Time		 Inclusive
Time		 Subroutine
4691123.0ms37.8msFile::Spec::Unix::::rel2absFile::Spec::Unix::rel2abs
536438.53ms12.2msFile::Spec::Unix::::file_name_is_absoluteFile::Spec::Unix::file_name_is_absolute
595214.30ms4.30msFile::Spec::Unix::::CORE:matchFile::Spec::Unix::CORE:match (opcode)
516524.04ms4.04msFile::Spec::Unix::::canonpathFile::Spec::Unix::canonpath (xsub)
59222.05ms2.66msFile::Spec::Unix::::splitpathFile::Spec::Unix::splitpath
58111.21ms1.21msFile::Spec::Unix::::catpathFile::Spec::Unix::catpath
1921589µs998µsFile::Spec::Unix::::catfileFile::Spec::Unix::catfile (xsub)
1611446µs446µsFile::Spec::Unix::::_cached_tmpdirFile::Spec::Unix::_cached_tmpdir
1611408µs1.16msFile::Spec::Unix::::tmpdirFile::Spec::Unix::tmpdir
1921253µs309µsFile::Spec::Unix::::catdirFile::Spec::Unix::catdir (xsub)
111140µs288µsFile::Spec::Unix::::_tmpdirFile::Spec::Unix::_tmpdir
11195µs95µsFile::Spec::Unix::::CORE:ftdirFile::Spec::Unix::CORE:ftdir (opcode)
11172µs83µsFile::Spec::Unix::::BEGIN@3File::Spec::Unix::BEGIN@3
11167µs67µsFile::Spec::Unix::::pathFile::Spec::Unix::path
11126µs218µsFile::Spec::Unix::::BEGIN@130File::Spec::Unix::BEGIN@130
11125µs222µsFile::Spec::Unix::::BEGIN@148File::Spec::Unix::BEGIN@148
11124µs222µsFile::Spec::Unix::::BEGIN@223File::Spec::Unix::BEGIN@223
11121µs82µsFile::Spec::Unix::::BEGIN@182File::Spec::Unix::BEGIN@182
11120µs105µsFile::Spec::Unix::::BEGIN@4File::Spec::Unix::BEGIN@4
11120µs205µsFile::Spec::Unix::::BEGIN@245File::Spec::Unix::BEGIN@245
11119µs191µsFile::Spec::Unix::::BEGIN@139File::Spec::Unix::BEGIN@139
11118µs18µsFile::Spec::Unix::::_cache_tmpdirFile::Spec::Unix::_cache_tmpdir
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
3268µs293µs
# spent 83µs (72+11) within File::Spec::Unix::BEGIN@3 which was called: # once (72µs+11µs) by Pod::Usage::BEGIN@22 at line 3
use strict;
# spent 83µs making 1 call to File::Spec::Unix::BEGIN@3 # spent 11µs making 1 call to strict::import
421.00ms2189µs
# spent 105µs (20+85) within File::Spec::Unix::BEGIN@4 which was called: # once (20µs+85µs) by Pod::Usage::BEGIN@22 at line 4
use vars qw($VERSION);
# spent 105µs making 1 call to File::Spec::Unix::BEGIN@4 # spent 85µs making 1 call to vars::import
5
612µs$VERSION = '3.63_01';
712µsmy $xs_version = $VERSION;
813µs$VERSION =~ tr/_//d;
9
10#dont try to load XSLoader and DynaLoader only to ultimately fail on miniperl
11115µsif(!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;
171396µs1381µs XSLoader::load("Cwd", $xs_version);
# spent 381µs 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 { '.' }
1302108µs2411µs
# spent 218µs (26+193) within File::Spec::Unix::BEGIN@130 which was called: # once (26µs+193µs) by Pod::Usage::BEGIN@22 at line 130
use constant _fn_curdir => ".";
# spent 218µs making 1 call to File::Spec::Unix::BEGIN@130 # spent 193µs 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' }
1392111µs2364µs
# spent 191µs (19+173) within File::Spec::Unix::BEGIN@139 which was called: # once (19µs+173µs) by Pod::Usage::BEGIN@22 at line 139
use constant _fn_devnull => "/dev/null";
# spent 191µs making 1 call to File::Spec::Unix::BEGIN@139 # spent 172µs 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 { '/' }
1482310µs2419µs
# spent 222µs (25+197) within File::Spec::Unix::BEGIN@148 which was called: # once (25µs+197µs) by Pod::Usage::BEGIN@22 at line 148
use constant _fn_rootdir => "/";
# spent 222µs making 1 call to File::Spec::Unix::BEGIN@148 # spent 197µs 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 $ENV{TMPDIR}
160is tainted, it is not used.
161
162=cut
163
16411µsmy ($tmpdir, %tmpenv);
165# Cache and return the calculated tmpdir, recording which env vars
166# determined it.
167
# spent 18µs within File::Spec::Unix::_cache_tmpdir which was called: # once (18µs+0s) by File::Spec::Unix::tmpdir at line 213
sub _cache_tmpdir {
168112µs @tmpenv{@_[2..$#_]} = @ENV{@_[2..$#_]};
169110µs return $tmpdir = $_[1];
170}
171# Retrieve the cached tmpdir, checking first whether relevant env vars have
172# changed and invalidated the cache.
173
# spent 446µs within File::Spec::Unix::_cached_tmpdir which was called 16 times, avg 28µs/call: # 16 times (446µs+0s) by File::Spec::Unix::tmpdir at line 211, avg 28µs/call
sub _cached_tmpdir {
1741631µs shift;
17516112µs local $^W;
17616168µs return if grep $ENV{$_} ne $tmpenv{$_}, @_;
17716192µs return $tmpdir;
178}
179
# spent 288µs (140+149) within File::Spec::Unix::_tmpdir which was called: # once (140µs+149µs) by File::Spec::Unix::tmpdir at line 213
sub _tmpdir {
18012µs my $self = shift;
18115µs my @dirlist = @_;
1825603µs2142µs
# spent 82µs (21+61) within File::Spec::Unix::BEGIN@182 which was called: # once (21µs+61µs) by Pod::Usage::BEGIN@22 at line 182
my $taint = do { no strict 'refs'; ${"\cTAINT"} };
# spent 82µs making 1 call to File::Spec::Unix::BEGIN@182 # spent 61µs making 1 call to strict::unimport
18314µs if ($taint) { # Check for taint mode on perl >= 5.8.0
18415µs require Scalar::Util;
185358µs221µs @dirlist = grep { ! Scalar::Util::tainted($_) } @dirlist;
# spent 21µs making 2 calls to Scalar::Util::tainted, avg 11µs/call
186 }
187 elsif ($] < 5.007) { # No ${^TAINT} before 5.8
188 @dirlist = grep { eval { eval('1'.substr $_,0,0) } } @dirlist;
189 }
190
19114µs foreach (@dirlist) {
1922127µs2100µs next unless defined && -d && -w _;
# spent 95µs making 1 call to File::Spec::Unix::CORE:ftdir # spent 6µs making 1 call to File::Spec::Unix::CORE:ftewrite
19313µs $tmpdir = $_;
19412µs last;
195 }
19612µs $tmpdir = $self->curdir unless defined $tmpdir;
197117µs16µs $tmpdir = defined $tmpdir && $self->canonpath($tmpdir);
# spent 6µs making 1 call to File::Spec::Unix::canonpath
19819µs121µs if ( !$self->file_name_is_absolute($tmpdir) ) {
# spent 21µs 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 }
207111µs return $tmpdir;
208}
209
210
# spent 1.16ms (408µs+752µs) within File::Spec::Unix::tmpdir which was called 16 times, avg 73µs/call: # 16 times (408µs+752µs) by Mail::SpamAssassin::Util::secure_tmpfile at line 1100 of Mail/SpamAssassin/Util.pm, avg 73µs/call
sub tmpdir {
21116180µs16446µs my $cached = $_[0]->_cached_tmpdir('TMPDIR');
# spent 446µs making 16 calls to File::Spec::Unix::_cached_tmpdir, avg 28µs/call
21216151µs return $cached if defined $cached;
213146µs2307µs $_[0]->_cache_tmpdir($_[0]->_tmpdir( $ENV{TMPDIR}, "/tmp" ), 'TMPDIR');
# spent 288µs making 1 call to File::Spec::Unix::_tmpdir # spent 18µs 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 { '..' }
2232216µs2420µs
# spent 222µs (24+198) within File::Spec::Unix::BEGIN@223 which was called: # once (24µs+198µs) by Pod::Usage::BEGIN@22 at line 223
use constant _fn_updir => "..";
# spent 222µs making 1 call to File::Spec::Unix::BEGIN@223 # spent 198µs 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 $self = shift;
234 return grep(!/^\.{1,2}\z/s, @_);
235}
236
237=item case_tolerant
238
239Returns a true or false value indicating, respectively, that alphabetic
240is not or is significant when comparing file specifications.
241
242=cut
243
244sub case_tolerant { 0 }
24522.25ms2390µs
# spent 205µs (20+185) within File::Spec::Unix::BEGIN@245 which was called: # once (20µs+185µs) by Pod::Usage::BEGIN@22 at line 245
use constant _fn_case_tolerant => 0;
# spent 205µs making 1 call to File::Spec::Unix::BEGIN@245 # spent 185µs making 1 call to constant::import
246
247=item file_name_is_absolute
248
249Takes as argument a path and returns true if it is an absolute path.
250
251This does not consult the local filesystem on Unix, Win32, OS/2 or Mac
252OS (Classic). It does consult the working environment for VMS (see
253L<File::Spec::VMS/file_name_is_absolute>).
254
255=cut
256
257
# spent 12.2ms (8.53+3.69) within File::Spec::Unix::file_name_is_absolute which was called 536 times, avg 23µs/call: # 469 times (7.45ms+3.47ms) by File::Spec::Unix::rel2abs at line 519, avg 23µs/call # 58 times (865µs+189µs) by Mail::SpamAssassin::Conf::Parser::fix_path_relative_to_current_file at line 1501 of Mail/SpamAssassin/Conf/Parser.pm, avg 18µs/call # 8 times (198µs+23µs) by Mail::SpamAssassin::Util::clean_path_in_taint_mode at line 159 of Mail/SpamAssassin/Util.pm, avg 28µs/call # once (16µs+5µs) by File::Spec::Unix::_tmpdir at line 198
sub file_name_is_absolute {
2585361.53ms my ($self,$file) = @_;
25953611.7ms5363.69ms return scalar($file =~ m:^/:s);
# spent 3.69ms making 536 calls to File::Spec::Unix::CORE:match, avg 7µs/call
260}
261
262=item path
263
264Takes no argument, returns the environment variable PATH as an array.
265
266=cut
267
268
# spent 67µs within File::Spec::Unix::path which was called: # once (67µs+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};
270114µs my @path = split(':', $ENV{PATH});
271937µs 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 ( '', $path, '' ).
299
300The directory portion may or may not be returned with a trailing '/'.
301
302The results can be passed to L</catpath()> to get back a path equivalent to
303(usually identical to) the original path.
304
305=cut
306
307
# spent 2.66ms (2.05+609µs) within File::Spec::Unix::splitpath which was called 59 times, avg 45µs/call: # 58 times (2.00ms+590µs) by Mail::SpamAssassin::Conf::Parser::fix_path_relative_to_current_file at line 1502 of Mail/SpamAssassin/Conf/Parser.pm, avg 45µs/call # once (49µs+18µs) by main::BEGIN@41 at line 42 of /usr/local/bin/sa-learn
sub splitpath {
30859267µs my ($self,$path, $nofile) = @_;
309
31059172µs my ($volume,$directory,$file) = ('','','');
311
31259245µs if ( $nofile ) {
313 $directory = $path;
314 }
315 else {
316591.05ms59609µs $path =~ m|^ ( (?: .* / (?: \.\.?\z )? )? ) ([^/]*) |xs;
# spent 609µs making 59 calls to File::Spec::Unix::CORE:match, avg 10µs/call
31759217µs $directory = $1;
31859183µs $file = $2;
319 }
320
32159618µs return ($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, $volume is significant.
360
361=cut
362
363
# spent 1.21ms within File::Spec::Unix::catpath which was called 58 times, avg 21µs/call: # 58 times (1.21ms+0s) by Mail::SpamAssassin::Conf::Parser::fix_path_relative_to_current_file at line 1503 of Mail/SpamAssassin/Conf/Parser.pm, avg 21µs/call
sub catpath {
36458187µs my ($self,$volume,$directory,$file) = @_;
365
36658420µs if ( $directory ne '' &&
367 $file ne '' &&
368 substr( $directory, -1 ) ne '/' &&
369 substr( $file, 0, 1 ) ne '/'
370 ) {
371 $directory .= "/$file" ;
372 }
373 else {
37458178µs $directory .= $file ;
375 }
376
37758569µs 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 $path is absolute, it is cleaned up and returned using L</canonpath()>.
506
507No checks against the filesystem are made. On VMS, there is
508interaction with the working environment, as logicals and
509macros are expanded.
510
511Based on code written by Shigio Yamaguchi.
512
513=cut
514
515
# spent 37.8ms (23.0+14.8) within File::Spec::Unix::rel2abs which was called 469 times, avg 81µs/call: # 469 times (23.0ms+14.8ms) by DB_File::tie_hash_or_array at line 265 of DB_File.pm, avg 81µs/call
sub rel2abs {
5164691.53ms my ($self,$path,$base ) = @_;
517
518 # Clean up $path
5194693.98ms46910.9ms if ( ! $self->file_name_is_absolute( $path ) ) {
# spent 10.9ms making 469 calls to File::Spec::Unix::file_name_is_absolute, avg 23µs/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
53546921.2ms4693.84ms return $self->canonpath( $path ) ;
# spent 3.84ms making 469 calls to File::Spec::Unix::canonpath, avg 8µs/call
536}
537
538=back
539
540=head1 COPYRIGHT
541
542Copyright (c) 2004 by the Perl 5 Porters. All rights reserved.
543
544This program is free software; you can redistribute it and/or modify
545it under the same terms as Perl itself.
546
547Please submit bug reports and patches to perlbug@perl.org.
548
549=head1 SEE ALSO
550
551L<File::Spec>
552
553=cut
554
555# Internal routine to File::Spec, no point in making this public since
556# it is the standard Cwd interface. Most of the platform-specific
557# File::Spec subclasses use this.
558sub _cwd {
559 require Cwd;
560 Cwd::getcwd();
561}
562
563
564# Internal method to reduce xx\..\yy -> yy
565sub _collapse {
566 my($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
598144µs1;
 
# spent 95µs within File::Spec::Unix::CORE:ftdir which was called: # once (95µs+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 4.30ms within File::Spec::Unix::CORE:match which was called 595 times, avg 7µs/call: # 536 times (3.69ms+0s) by File::Spec::Unix::file_name_is_absolute at line 259, avg 7µs/call # 59 times (609µs+0s) by File::Spec::Unix::splitpath at line 316, avg 10µs/call
sub File::Spec::Unix::CORE:match; # opcode
# spent 4.04ms within File::Spec::Unix::canonpath which was called 516 times, avg 8µs/call: # 469 times (3.84ms+0s) by File::Spec::Unix::rel2abs at line 535, avg 8µs/call # 32 times (134µs+0s) by File::Spec::Unix::catdir or File::Spec::Unix::catfile at line 1114 of Mail/SpamAssassin/Util.pm, avg 4µs/call # 8 times (44µs+0s) by Mail::SpamAssassin::Util::clean_path_in_taint_mode at line 157 of Mail/SpamAssassin/Util.pm, avg 6µs/call # 6 times (21µs+0s) by File::Spec::Unix::catdir or File::Spec::Unix::catfile at line 1746 of Mail/SpamAssassin/Util.pm, avg 4µs/call # once (6µs+0s) by File::Spec::Unix::_tmpdir at line 197
sub File::Spec::Unix::canonpath; # xsub
# spent 309µs (253+56) within File::Spec::Unix::catdir which was called 19 times, avg 16µs/call: # 16 times (199µs+47µs) by File::Spec::Unix::catfile at line 1114 of Mail/SpamAssassin/Util.pm, avg 15µs/call # 3 times (54µs+9µs) by File::Spec::Unix::catfile at line 1746 of Mail/SpamAssassin/Util.pm, avg 21µs/call
sub File::Spec::Unix::catdir; # xsub
# spent 998µs (589+408) within File::Spec::Unix::catfile which was called 19 times, avg 53µs/call: # 16 times (500µs+333µs) by Mail::SpamAssassin::Util::secure_tmpfile at line 1114 of Mail/SpamAssassin/Util.pm, avg 52µs/call # 3 times (89µs+75µs) by Mail::SpamAssassin::Util::avoid_db_file_locking_bug at line 1746 of Mail/SpamAssassin/Util.pm, avg 55µs/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.