SEARCH
NEW RPMS
DIRECTORIES
ABOUT
FAQ
VARIOUS
BLOG
DONATE


YUM REPOSITORY

 
 

MAN page from Fedora 6 perl-ExtUtils-MakeMaker-6.46-1.fc6.rf.noarch.rpm

inc::ExtUtils::Packlist

Section: User Contributed Perl Documentation (3)
Updated: 2008-09-07
Index 

NAME

ExtUtils::Packlist - manage .packlist files 

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' };
 

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. Inaddition, this package supports an extended format, where as well as a filenameeach line may contain a list of attributes in the form of a space separatedlist of key=value pairs. This is used by the installperl script todifferentiate between files and links, for example. 

USAGE

The hash reference returned by the new() function can be used to examine andmodify 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 ascalar, the entry written to the .packlist by any subsequent write() will be asimple filename. If the value is a hash, the entry written will be thefilename followed by the key=value pairs from the hash. Reading back the.packlist will recreate the original entries. 

FUNCTIONS

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() methodreturns 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 eachkey is undef. In the case of new-style .packlists, the value associated witheach key is a hash containing the key=value pairs following the filename in the.packlist.
read()
This takes an optional parameter, the name of the .packlist to be read. Ifno file is specified, the .packlist specified to new() will be read. If the.packlist does not exist, Carp::croak will be called.
write()
This takes an optional parameter, the name of the .packlist to be written. Ifno file is specified, the .packlist specified to new() will be overwritten.
validate()
This checks that every file listed in the .packlist actually exists. If anargument which evaluates to true is given, any missing files will be removedfrom the internal hash. The return value is a list of the missing files, whichwill be empty if they all exist.
packlist_file()
This returns the name of the associated .packlist file
 

EXAMPLE

Here's "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);             }          }       }    }
 

AUTHOR

Alan Burlison <Alan.BurlisonAATTuk.sun.com>


 

Index

NAME
SYNOPSIS
DESCRIPTION
USAGE
FUNCTIONS
EXAMPLE
AUTHOR

This document was created byman2html,using the manual pages.