package Cwd;
-
-=head1 NAME
-
-Cwd - get pathname of current working directory
-
-=head1 SYNOPSIS
-
- use Cwd;
- my $dir = getcwd;
-
- use Cwd 'abs_path';
- my $abs_path = abs_path($file);
-
-=head1 DESCRIPTION
-
-This module provides functions for determining the pathname of the
-current working directory. It is recommended that getcwd (or another
-*cwd() function) be used in I<all> code to ensure portability.
-
-By default, it exports the functions cwd(), getcwd(), fastcwd(), and
-fastgetcwd() (and, on Win32, getdcwd()) into the caller's namespace.
-
-
-=head2 getcwd and friends
-
-Each of these functions are called without arguments and return the
-absolute path of the current working directory.
-
-=over 4
-
-=item getcwd
-
- my $cwd = getcwd();
-
-Returns the current working directory.
-
-Exposes the POSIX function getcwd(3) or re-implements it if it's not
-available.
-
-=item cwd
-
- my $cwd = cwd();
-
-The cwd() is the most natural form for the current architecture. For
-most systems it is identical to `pwd` (but without the trailing line
-terminator).
-
-=item fastcwd
-
- my $cwd = fastcwd();
-
-A more dangerous version of getcwd(), but potentially faster.
-
-It might conceivably chdir() you out of a directory that it can't
-chdir() you back into. If fastcwd encounters a problem it will return
-undef but will probably leave you in a different directory. For a
-measure of extra security, if everything appears to have worked, the
-fastcwd() function will check that it leaves you in the same directory
-that it started in. If it has changed it will C<die> with the message
-"Unstable directory path, current directory changed
-unexpectedly". That should never happen.
-
-=item fastgetcwd
-
- my $cwd = fastgetcwd();
-
-The fastgetcwd() function is provided as a synonym for cwd().
-
-=item getdcwd
-
- my $cwd = getdcwd();
- my $cwd = getdcwd('C:');
-
-The getdcwd() function is also provided on Win32 to get the current working
-directory on the specified drive, since Windows maintains a separate current
-working directory for each drive. If no drive is specified then the current
-drive is assumed.
-
-This function simply calls the Microsoft C library _getdcwd() function.
-
-=back
-
-
-=head2 abs_path and friends
-
-These functions are exported only on request. They each take a single
-argument and return the absolute pathname for it. If no argument is
-given they'll use the current working directory.
-
-=over 4
-
-=item abs_path
-
- my $abs_path = abs_path($file);
-
-Uses the same algorithm as getcwd(). Symbolic links and relative-path
-components ("." and "..") are resolved to return the canonical
-pathname, just like realpath(3).
-
-=item realpath
-
- my $abs_path = realpath($file);
-
-A synonym for abs_path().
-
-=item fast_abs_path
-
- my $abs_path = fast_abs_path($file);
-
-A more dangerous, but potentially faster version of abs_path.
-
-=back
-
-=head2 $ENV{PWD}
-
-If you ask to override your chdir() built-in function,
-
- use Cwd qw(chdir);
-
-then your PWD environment variable will be kept up to date. Note that
-it will only be kept up to date if all packages which use chdir import
-it from Cwd.
-
-
-=head1 NOTES
-
-=over 4
-
-=item *
-
-Since the path separators are different on some operating systems ('/'
-on Unix, ':' on MacPerl, etc...) we recommend you use the File::Spec
-modules wherever portability is a concern.
-
-=item *
-
-Actually, on Mac OS, the C<getcwd()>, C<fastgetcwd()> and C<fastcwd()>
-functions are all aliases for the C<cwd()> function, which, on Mac OS,
-calls `pwd`. Likewise, the C<abs_path()> function is an alias for
-C<fast_abs_path()>.
-
-=back
-
-=head1 AUTHOR
-
-Originally by the perl5-porters.
-
-Maintained by Ken Williams <KWILLIAMS@cpan.org>
-
-=head1 COPYRIGHT
-
-Copyright (c) 2004 by the Perl 5 Porters. All rights reserved.
-
-This program is free software; you can redistribute it and/or modify
-it under the same terms as Perl itself.
-
-Portions of the C code in this library are copyright (c) 1994 by the
-Regents of the University of California. All rights reserved. The
-license on this code is compatible with the licensing of the rest of
-the distribution - please see the source code in F<Cwd.xs> for the
-details.
-
-=head1 SEE ALSO
-
-L<File::chdir>
-
-=cut
-
use strict;
use Exporter;
use vars qw(@ISA @EXPORT @EXPORT_OK $VERSION);
-$VERSION = '3.45';
+$VERSION = '3.54';
my $xs_version = $VERSION;
$VERSION =~ tr/_//;
# If loading the XS stuff doesn't work, we can fall back to pure perl
-unless (defined &getcwd) {
- eval {
+if(! defined &getcwd && defined &DynaLoader::boot_DynaLoader) {
+ eval {#eval is questionable since we are handling potential errors like
+ #"Cwd object version 3.48 does not match bootstrap parameter 3.50
+ #at lib/DynaLoader.pm line 216." by having this eval
if ( $] >= 5.006 ) {
require XSLoader;
XSLoader::load( __PACKAGE__, $xs_version);
# are safe. This prevents _backtick_pwd() consulting $ENV{PATH}
# so everything works under taint mode.
my $pwd_cmd;
-foreach my $try ('/bin/pwd',
- '/usr/bin/pwd',
- '/QOpenSys/bin/pwd', # OS/400 PASE.
- ) {
+if($^O ne 'MSWin32') {
+ foreach my $try ('/bin/pwd',
+ '/usr/bin/pwd',
+ '/QOpenSys/bin/pwd', # OS/400 PASE.
+ ) {
+ if( -x $try ) {
+ $pwd_cmd = $try;
+ last;
+ }
+ }
+}
- if( -x $try ) {
- $pwd_cmd = $try;
- last;
+# Android has a built-in pwd. Using $pwd_cmd will DTRT if
+# this perl was compiled with -Dd_useshellcmds, which is the
+# default for Android, but the block below is needed for the
+# miniperl running on the host when cross-compiling, and
+# potentially for native builds with -Ud_useshellcmds.
+if ($^O =~ /android/) {
+ # If targetsh is executable, then we're either a full
+ # perl, or a miniperl for a native build.
+ if (-x $Config::Config{targetsh}) {
+ $pwd_cmd = "$Config::Config{targetsh} -c pwd"
+ }
+ else {
+ my $sh = $Config::Config{sh} || (-x '/system/bin/sh' ? '/system/bin/sh' : 'sh');
+ $pwd_cmd = "$sh -c pwd"
}
}
+
my $found_pwd_cmd = defined($pwd_cmd);
unless ($pwd_cmd) {
# Isn't this wrong? _backtick_pwd() will fail if someone has
sub chdir {
my $newdir = @_ ? shift : ''; # allow for no arg (chdir to HOME dir)
- $newdir =~ s|///*|/|g unless $^O eq 'MSWin32';
+ if ($^O eq "cygwin") {
+ $newdir =~ s|\A///+|//|;
+ $newdir =~ s|(?<=[^/])//+|/|g;
+ }
+ elsif ($^O ne 'MSWin32') {
+ $newdir =~ s|///*|/|g;
+ }
chdir_init() unless $chdir_init;
my $newpwd;
if ($^O eq 'MSWin32') {
*realpath = \&abs_path;
1;
+__END__
+
+=head1 NAME
+
+Cwd - get pathname of current working directory
+
+=head1 SYNOPSIS
+
+ use Cwd;
+ my $dir = getcwd;
+
+ use Cwd 'abs_path';
+ my $abs_path = abs_path($file);
+
+=head1 DESCRIPTION
+
+This module provides functions for determining the pathname of the
+current working directory. It is recommended that getcwd (or another
+*cwd() function) be used in I<all> code to ensure portability.
+
+By default, it exports the functions cwd(), getcwd(), fastcwd(), and
+fastgetcwd() (and, on Win32, getdcwd()) into the caller's namespace.
+
+
+=head2 getcwd and friends
+
+Each of these functions are called without arguments and return the
+absolute path of the current working directory.
+
+=over 4
+
+=item getcwd
+
+ my $cwd = getcwd();
+
+Returns the current working directory.
+
+Exposes the POSIX function getcwd(3) or re-implements it if it's not
+available.
+
+=item cwd
+
+ my $cwd = cwd();
+
+The cwd() is the most natural form for the current architecture. For
+most systems it is identical to `pwd` (but without the trailing line
+terminator).
+
+=item fastcwd
+
+ my $cwd = fastcwd();
+
+A more dangerous version of getcwd(), but potentially faster.
+
+It might conceivably chdir() you out of a directory that it can't
+chdir() you back into. If fastcwd encounters a problem it will return
+undef but will probably leave you in a different directory. For a
+measure of extra security, if everything appears to have worked, the
+fastcwd() function will check that it leaves you in the same directory
+that it started in. If it has changed it will C<die> with the message
+"Unstable directory path, current directory changed
+unexpectedly". That should never happen.
+
+=item fastgetcwd
+
+ my $cwd = fastgetcwd();
+
+The fastgetcwd() function is provided as a synonym for cwd().
+
+=item getdcwd
+
+ my $cwd = getdcwd();
+ my $cwd = getdcwd('C:');
+
+The getdcwd() function is also provided on Win32 to get the current working
+directory on the specified drive, since Windows maintains a separate current
+working directory for each drive. If no drive is specified then the current
+drive is assumed.
+
+This function simply calls the Microsoft C library _getdcwd() function.
+
+=back
+
+
+=head2 abs_path and friends
+
+These functions are exported only on request. They each take a single
+argument and return the absolute pathname for it. If no argument is
+given they'll use the current working directory.
+
+=over 4
+
+=item abs_path
+
+ my $abs_path = abs_path($file);
+
+Uses the same algorithm as getcwd(). Symbolic links and relative-path
+components ("." and "..") are resolved to return the canonical
+pathname, just like realpath(3).
+
+=item realpath
+
+ my $abs_path = realpath($file);
+
+A synonym for abs_path().
+
+=item fast_abs_path
+
+ my $abs_path = fast_abs_path($file);
+
+A more dangerous, but potentially faster version of abs_path.
+
+=back
+
+=head2 $ENV{PWD}
+
+If you ask to override your chdir() built-in function,
+
+ use Cwd qw(chdir);
+
+then your PWD environment variable will be kept up to date. Note that
+it will only be kept up to date if all packages which use chdir import
+it from Cwd.
+
+
+=head1 NOTES
+
+=over 4
+
+=item *
+
+Since the path separators are different on some operating systems ('/'
+on Unix, ':' on MacPerl, etc...) we recommend you use the File::Spec
+modules wherever portability is a concern.
+
+=item *
+
+Actually, on Mac OS, the C<getcwd()>, C<fastgetcwd()> and C<fastcwd()>
+functions are all aliases for the C<cwd()> function, which, on Mac OS,
+calls `pwd`. Likewise, the C<abs_path()> function is an alias for
+C<fast_abs_path()>.
+
+=back
+
+=head1 AUTHOR
+
+Originally by the perl5-porters.
+
+Maintained by Ken Williams <KWILLIAMS@cpan.org>
+
+=head1 COPYRIGHT
+
+Copyright (c) 2004 by the Perl 5 Porters. All rights reserved.
+
+This program is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
+Portions of the C code in this library are copyright (c) 1994 by the
+Regents of the University of California. All rights reserved. The
+license on this code is compatible with the licensing of the rest of
+the distribution - please see the source code in F<Cwd.xs> for the
+details.
+
+=head1 SEE ALSO
+
+L<File::chdir>
+
+=cut
https://perl5.git.perl.org / perl5.git / blobdiff