Edit: /usr/share/perl5/FindBin.pm (4561B)
# FindBin.pm
#
# Copyright (c) 1995 Graham Barr & Nick Ing-Simmons. All rights reserved.
# This program is free software; you can redistribute it and/or modify it
# under the same terms as Perl itself.
=head1 NAME
FindBin - Locate directory of original perl script
=head1 SYNOPSIS
use FindBin;
use lib "$FindBin::Bin/../lib";
or
use FindBin qw($Bin);
use lib "$Bin/../lib";
=head1 DESCRIPTION
Locates the full path to the script bin directory to allow the use
of paths relative to the bin directory.
This allows a user to setup a directory tree for some software with
directories C<<
/bin >> and C<< /lib >>, and then the above
example will allow the use of modules in the lib directory without knowing
where the software tree is installed.
If perl is invoked using the B<-e> option or the perl script is read from
C then FindBin sets both C<$Bin> and C<$RealBin> to the current
directory.
=head1 EXPORTABLE VARIABLES
$Bin - path to bin directory from where script was invoked
$Script - basename of script from which perl was invoked
$RealBin - $Bin with all links resolved
$RealScript - $Script with all links resolved
=head1 KNOWN ISSUES
If there are two modules using C from different directories
under the same interpreter, this won't work. Since C uses a
C block, it'll be executed only once, and only the first caller
will get it right. This is a problem under mod_perl and other persistent
Perl environments, where you shouldn't use this module. Which also means
that you should avoid using C in modules that you plan to put
on CPAN. To make sure that C will work is to call the C
function:
use FindBin;
FindBin::again(); # or FindBin->again;
In former versions of FindBin there was no C function. The
workaround was to force the C block to be executed again:
delete $INC{'FindBin.pm'};
require FindBin;
=head1 AUTHORS
FindBin is supported as part of the core perl distribution. Please send bug
reports to EFE using the perlbug program
included with perl.
Graham Barr EFE
Nick Ing-Simmons EFE
=head1 COPYRIGHT
Copyright (c) 1995 Graham Barr & Nick Ing-Simmons. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut
package FindBin;
use Carp;
require 5.000;
require Exporter;
use Cwd qw(getcwd cwd abs_path);
use File::Basename;
use File::Spec;
@EXPORT_OK = qw($Bin $Script $RealBin $RealScript $Dir $RealDir);
%EXPORT_TAGS = (ALL => [qw($Bin $Script $RealBin $RealScript $Dir $RealDir)]);
@ISA = qw(Exporter);
$VERSION = "1.51";
# needed for VMS-specific filename translation
if( $^O eq 'VMS' ) {
require VMS::Filespec;
VMS::Filespec->import;
}
sub cwd2 {
my $cwd = getcwd();
# getcwd might fail if it hasn't access to the current directory.
# try harder.
defined $cwd or $cwd = cwd();
$cwd;
}
sub init
{
*Dir = \$Bin;
*RealDir = \$RealBin;
if($0 eq '-e' || $0 eq '-')
{
# perl invoked with -e or script is on C
$Script = $RealScript = $0;
$Bin = $RealBin = cwd2();
$Bin = VMS::Filespec::unixify($Bin) if $^O eq 'VMS';
}
else
{
my $script = $0;
if ($^O eq 'VMS')
{
($Bin,$Script) = VMS::Filespec::rmsexpand($0) =~ /(.*[\]>\/]+)(.*)/s;
# C