FM / ExtUtils

/usr/share/perl5/vendor_perl/ExtUtils

Name	Size	Mode	Actions
CBuilder/	-	0755	rm
Command/	-	0755	rm
Liblist/	-	0755	rm
MakeMaker/	-	0755	rm
MM/	-	0755	rm
ParseXS/	-	0755	rm
Typemaps/	-	0755	rm
CBuilder.pm	8880	0644	edit dl rm
Command.pm	7802	0644	edit dl rm
Install.pm	41020	0644	edit dl rm
Installed.pm	14363	0644	edit dl rm
Liblist.pm	9743	0644	edit dl rm
MakeMaker.pm	110530	0644	edit dl rm
Manifest.pm	23439	0644	edit dl rm
MANIFEST.SKIP	971	0644	edit dl rm
Mkbootstrap.pm	3306	0644	edit dl rm
Mksymlists.pm	11002	0644	edit dl rm
MM.pm	2138	0644	edit dl rm
MM_AIX.pm	1403	0644	edit dl rm
MM_Any.pm	82753	0644	edit dl rm
MM_BeOS.pm	1044	0644	edit dl rm
MM_Cygwin.pm	4085	0644	edit dl rm
MM_Darwin.pm	936	0644	edit dl rm
MM_DOS.pm	1052	0644	edit dl rm
MM_MacOS.pm	892	0644	edit dl rm
MM_NW5.pm	5466	0644	edit dl rm
MM_OS2.pm	3217	0644	edit dl rm
MM_QNX.pm	894	0644	edit dl rm
MM_Unix.pm	111071	0644	edit dl rm
MM_UWIN.pm	981	0644	edit dl rm
MM_VMS.pm	68116	0644	edit dl rm
MM_VOS.pm	749	0644	edit dl rm
MM_Win32.pm	14402	0644	edit dl rm
MM_Win95.pm	1281	0644	edit dl rm
MY.pm	678	0644	edit dl rm
Packlist.pm	8565	0644	edit dl rm
ParseXS.pm	66572	0644	edit dl rm
ParseXS.pod	4406	0644	edit dl rm
testlib.pm	916	0644	edit dl rm
Typemaps.pm	26795	0644	edit dl rm
xsubpp	5080	0755	edit dl rm

Edit: /usr/share/perl5/vendor_perl/ExtUtils/Packlist.pm (8565B)

package ExtUtils::Packlist;

use 5.00503;
use strict;
use Carp qw();
use Config;
use vars qw($VERSION $Relocations);
$VERSION = '2.14';
$VERSION = eval $VERSION;

# Used for generating filehandle globs.  IO::File might not be available!
my $fhname = "FH1";

=begin _undocumented

=over

=item mkfh()

Make a filehandle. Same kind of idea as Symbol::gensym().

=cut

sub mkfh()
{
no strict;
local $^W;
my $fh = \*{$fhname++};
use strict;
return($fh);
}

=item __find_relocations

Works out what absolute paths in the configuration have been located at run
time relative to $^X, and generates a regexp that matches them

=back

=end _undocumented

=cut

sub __find_relocations
{
    my %paths;
    while (my ($raw_key, $raw_val) = each %Config) {
	my $exp_key = $raw_key . "exp";
	next unless exists $Config{$exp_key};
	next unless $raw_val =~ m!\.\.\./!;
	$paths{$Config{$exp_key}}++;
    }
    # Longest prefixes go first in the alternatives
    my $alternations = join "|", map {quotemeta $_}
    sort {length $b <=> length $a} keys %paths;
    qr/^($alternations)/o;
}

sub new($$)
{
my ($class, $packfile) = @_;
$class = ref($class) || $class;
my %self;
tie(%self, $class, $packfile);
return(bless(\%self, $class));
}

sub TIEHASH
{
my ($class, $packfile) = @_;
my $self = { packfile => $packfile };
bless($self, $class);
$self->read($packfile) if (defined($packfile) && -f $packfile);
return($self);
}

sub STORE
{
$_[0]->{data}->{$_[1]} = $_[2];
}

sub FETCH
{
return($_[0]->{data}->{$_[1]});
}

sub FIRSTKEY
{
my $reset = scalar(keys(%{$_[0]->{data}}));
return(each(%{$_[0]->{data}}));
}

sub NEXTKEY
{
return(each(%{$_[0]->{data}}));
}

sub EXISTS
{
return(exists($_[0]->{data}->{$_[1]}));
}

sub DELETE
{
return(delete($_[0]->{data}->{$_[1]}));
}

sub CLEAR
{
%{$_[0]->{data}} = ();
}

sub DESTROY
{
}

sub read($;$)
{
my ($self, $packfile) = @_;
$self = tied(%$self) || $self;

if (defined($packfile)) { $self->{packfile} = $packfile; }
else { $packfile = $self->{packfile}; }
Carp::croak("No packlist filename specified") if (! defined($packfile));
my $fh = mkfh();
open($fh, "<$packfile") || Carp::croak("Can't open file $packfile: $!");
$self->{data} = {};
my ($line);
while (defined($line = <$fh>))
   {
   chomp $line;
   my ($key, $data) = $line;
   if ($key =~ /^(.*?)( \w+=.*)$/)
      {
      $key = $1;
      $data = { map { split('=', $_) } split(' ', $2)};

if ($Config{userelocatableinc} && $data->{relocate_as})
      {
	  require File::Spec;
	  require Cwd;
	  my ($vol, $dir) = File::Spec->splitpath($packfile);
	  my $newpath = File::Spec->catpath($vol, $dir, $data->{relocate_as});
	  $key = Cwd::realpath($newpath);
      }
         }
   $key =~ s!/\./!/!g;   # Some .packlists have spurious '/./' bits in the paths
      $self->{data}->{$key} = $data;
      }
close($fh);
}

sub write($;$)
{
my ($self, $packfile) = @_;
$self = tied(%$self) || $self;
if (defined($packfile)) { $self->{packfile} = $packfile; }
else { $packfile = $self->{packfile}; }
Carp::croak("No packlist filename specified") if (! defined($packfile));
my $fh = mkfh();
open($fh, ">$packfile") || Carp::croak("Can't open file $packfile: $!");
foreach my $key (sort(keys(%{$self->{data}})))
   {
       my $data = $self->{data}->{$key};
       if ($Config{userelocatableinc}) {
	   $Relocations ||= __find_relocations();
	   if ($packfile =~ $Relocations) {
	       # We are writing into a subdirectory of a run-time relocated
	       # path. Figure out if the this file is also within a subdir.
	       my $prefix = $1;
	       if (File::Spec->no_upwards(File::Spec->abs2rel($key, $prefix)))
	       {
		   # The relocated path is within the found prefix
		   my $packfile_prefix;
		   (undef, $packfile_prefix)
		       = File::Spec->splitpath($packfile);

my $relocate_as
		       = File::Spec->abs2rel($key, $packfile_prefix);

if (!ref $data) {
		       $data = {};
		   }
		   $data->{relocate_as} = $relocate_as;
	       }
	   }
       }
   print $fh ("$key");
   if (ref($data))
      {
      foreach my $k (sort(keys(%$data)))
         {
         print $fh (" $k=$data->{$k}");
         }
      }
   print $fh ("\n");
   }
close($fh);
}

sub validate($;$)
{
my ($self, $remove) = @_;
$self = tied(%$self) || $self;
my @missing;
foreach my $key (sort(keys(%{$self->{data}})))
   {
   if (! -e $key)
      {
      push(@missing, $key);
      delete($self->{data}{$key}) if ($remove);
      }
   }
return(@missing);
}

sub packlist_file($)
{
my ($self) = @_;
$self = tied(%$self) || $self;
return($self->{packfile});
}

__END__

=head1 NAME

ExtUtils::Packlist - manage .packlist files

=head1 SYNOPSIS

use ExtUtils::Packlist;
   my ($pl) = ExtUtils::Packlist->new('.packlist');
   $pl->read('/an/old/.packlist');
   my @missing_files = $pl->validate();
   $pl->write('/a/new/.packlist');

$pl->{'/some/file/name'}++;
      or
   $pl->{'/some/other/file/name'} = { type => 'file',
                                      from => '/some/file' };

=head1 DESCRIPTION

ExtUtils::Packlist provides a standard way to manage .packlist files.
Functions are provided to read and write .packlist files.  The original
.packlist format is a simple list of absolute pathnames, one per line.  In
addition, this package supports an extended format, where as well as a filename
each line may contain a list of attributes in the form of a space separated
list of key=value pairs.  This is used by the installperl script to
differentiate between files and links, for example.

=head1 USAGE

The hash reference returned by the new() function can be used to examine and
modify the contents of the .packlist.  Items may be added/deleted from the
.packlist by modifying the hash.  If the value associated with a hash key is a
scalar, the entry written to the .packlist by any subsequent write() will be a
simple filename.  If the value is a hash, the entry written will be the
filename followed by the key=value pairs from the hash.  Reading back the
.packlist will recreate the original entries.

=head1 FUNCTIONS

=over 4

=item new()

This takes an optional parameter, the name of a .packlist.  If the file exists,
it will be opened and the contents of the file will be read.  The new() method
returns a reference to a hash.  This hash holds an entry for each line in the
.packlist.  In the case of old-style .packlists, the value associated with each
key is undef.  In the case of new-style .packlists, the value associated with
each key is a hash containing the key=value pairs following the filename in the
.packlist.

=item read()

This takes an optional parameter, the name of the .packlist to be read.  If
no file is specified, the .packlist specified to new() will be read.  If the
.packlist does not exist, Carp::croak will be called.

=item write()

This takes an optional parameter, the name of the .packlist to be written.  If
no file is specified, the .packlist specified to new() will be overwritten.

=item validate()

This checks that every file listed in the .packlist actually exists.  If an
argument which evaluates to true is given, any missing files will be removed
from the internal hash.  The return value is a list of the missing files, which
will be empty if they all exist.

=item packlist_file()

This returns the name of the associated .packlist file

=back

=head1 EXAMPLE

Here's C<modrm>, a little utility to cleanly remove an installed module.

#!/usr/local/bin/perl -w

use strict;
    use IO::Dir;
    use ExtUtils::Packlist;
    use ExtUtils::Installed;

sub emptydir($) {
	my ($dir) = @_;
	my $dh = IO::Dir->new($dir) || return(0);
	my @count = $dh->read();
	$dh->close();
	return(@count == 2 ? 1 : 0);
    }

# Find all the installed packages
    print("Finding all installed modules...\n");
    my $installed = ExtUtils::Installed->new();

foreach my $module (grep(!/^Perl$/, $installed->modules())) {
       my $version = $installed->version($module) || "???";
       print("Found module $module Version $version\n");
       print("Do you want to delete $module? [n] ");
       my $r = <STDIN>; chomp($r);
       if ($r && $r =~ /^y/i) {
	  # Remove all the files
	  foreach my $file (sort($installed->files($module))) {
	     print("rm $file\n");
	     unlink($file);
	  }
	  my $pf = $installed->packlist($module)->packlist_file();
	  print("rm $pf\n");
	  unlink($pf);
	  foreach my $dir (sort($installed->directory_tree($module))) {
	     if (emptydir($dir)) {
		print("rmdir $dir\n");
		rmdir($dir);
	     }
	  }
       }
    }

=head1 AUTHOR

Alan Burlison <Alan.Burlison@uk.sun.com>

=cut

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