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FileCache.pm	5.44 KB	-rwxrwxrwx	2020-06-20 19:33
FileHandle.pm	2.06 KB	-rwxrwxrwx	2020-06-20 19:33
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bigrat.pm	15.28 KB	-rwxrwxrwx	2020-06-20 19:33
blib.pm	2.04 KB	-rwxrwxrwx	2020-06-20 19:33
bytes.pm	447 B	-rwxrwxrwx	2020-06-20 19:33
bytes_heavy.pl	758 B	-rwxrwxrwx	2020-06-20 19:33
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constant.pm	5.6 KB	-rwxrwxrwx	2020-06-20 19:33
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diagnostics.pm	18.26 KB	-rwxrwxrwx	2020-06-20 19:33
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feature.pm	4.21 KB	-rwxrwxrwx	2020-06-20 19:33
fields.pm	4.9 KB	-rwxrwxrwx	2020-06-20 19:33
filetest.pm	3.91 KB	-rwxrwxrwx	2020-06-20 19:33
if.pm	3.26 KB	-rwxrwxrwx	2020-06-20 19:33
integer.pm	172 B	-rwxrwxrwx	2020-06-20 19:33
less.pm	3.13 KB	-rwxrwxrwx	2020-06-20 19:33
locale.pm	3.34 KB	-rwxrwxrwx	2020-06-20 19:33
meta_notation.pm	2.07 KB	-rwxrwxrwx	2020-06-20 19:33
ok.pm	968 B	-rwxrwxrwx	2020-06-20 19:33
open.pm	7.83 KB	-rwxrwxrwx	2020-06-20 19:33
overload.pm	4.36 KB	-rwxrwxrwx	2020-06-20 19:33
overloading.pm	964 B	-rwxrwxrwx	2020-06-20 19:33
parent.pm	479 B	-rwxrwxrwx	2020-06-20 19:33
perl5db.pl	308.8 KB	-rwxrwxrwx	2020-06-20 19:33
perlfaq.pm	78 B	-rwxrwxrwx	2020-06-20 19:33
sigtrap.pm	7.43 KB	-rwxrwxrwx	2020-06-20 19:33
sort.pm	5.94 KB	-rwxrwxrwx	2020-06-20 19:33
strict.pm	1.57 KB	-rwxrwxrwx	2020-06-20 19:33
subs.pm	848 B	-rwxrwxrwx	2020-06-20 19:33
utf8.pm	342 B	-rwxrwxrwx	2020-06-20 19:33
utf8_heavy.pl	30.87 KB	-rwxrwxrwx	2020-06-20 19:33
vars.pm	1.12 KB	-rwxrwxrwx	2020-06-20 19:33
version.pm	1.67 KB	-rwxrwxrwx	2020-06-20 19:33
version.pod	9.63 KB	-rwxrwxrwx	2020-06-20 19:33
vmsish.pm	4.21 KB	-rwxrwxrwx	2020-06-20 19:33
warnings.pm	21.13 KB	-rwxrwxrwx	2020-06-20 19:33

Rename

package blib;

=head1 NAME

blib - Use MakeMaker's uninstalled version of a package

=head1 SYNOPSIS

perl -Mblib script [args...]

perl -Mblib=dir script [args...]

=head1 DESCRIPTION

Looks for MakeMaker-like I<'blib'> directory structure starting in
I<dir> (or current directory) and working back up to five levels of '..'.

Intended for use on command line with B<-M> option as a way of testing
arbitrary scripts against an uninstalled version of a package.

However it is possible to :

use blib;
 or
 use blib '..';

etc. if you really must.

=head1 BUGS

Pollutes global name space for development only task.

=head1 AUTHOR

Nick Ing-Simmons nik@tiuk.ti.com

=cut

use Cwd;
use File::Spec;

use vars qw($VERSION $Verbose);
$VERSION = '1.06';
$Verbose = 0;

sub import
{
 my $package = shift;
 my $dir;
 if ($^O eq "MSWin32" && -f "Win32.xs") {
     # We don't use getcwd() on Windows because it will internally
     # call Win32::GetCwd(), which will get the Win32 module loaded.
     # That means that it would not be possible to run `make test`
     # for the Win32 module because blib.pm would always load the
     # installed version before @INC gets updated with the blib path.
     chomp($dir = `cd`);
 }
 else {
     $dir = getcwd;
 }
 if ($^O eq 'VMS') { ($dir = VMS::Filespec::unixify($dir)) =~ s-/\z--; }
 if (@_)
  {
   $dir = shift;
   $dir =~ s/blib\z//;
   $dir =~ s,/+\z,,;
   $dir = File::Spec->curdir unless ($dir);
   die "$dir is not a directory\n" unless (-d $dir);
  }

# detaint: if the user asked for blib, s/he presumably knew
 # what s/he wanted
 $dir = $1 if $dir =~ /^(.*)$/;

my $i = 5;
 my($blib, $blib_lib, $blib_arch);
 while ($i--)
  {
   $blib = File::Spec->catdir($dir, "blib");
   $blib_lib = File::Spec->catdir($blib, "lib");
   $blib_arch = File::Spec->catdir($blib, "arch");

if (-d $blib && -d $blib_arch && -d $blib_lib)
    {
     unshift(@INC,$blib_arch,$blib_lib);
     warn "Using $blib\n" if $Verbose;
     return;
    }
   $dir = File::Spec->catdir($dir, File::Spec->updir);
  }
 die "Cannot find blib even in $dir\n";
}