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ExtUtils::Packlist(3pm)Perl Programmers Reference GuideExtUtils::Packlist(3pm)

       ExtUtils::Packlist - manage .packlist files

          use ExtUtils::Packlist;
          my ($pl) = ExtUtils::Packlist->new('.packlist');
          my @missing_files = $pl->validate();

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

       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

       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.

           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.

           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

           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.

           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.

           This returns the name of the associated .packlist file

       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();
               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");
                 my $pf = $installed->packlist($module)->packlist_file();
                 print("rm $pf\n");
                 foreach my $dir (sort($installed->directory_tree($module))) {
                    if (emptydir($dir)) {
                       print("rmdir $dir\n");

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

       Hey! The above document had some coding errors, which are explained

       Around line 39:
           =back without =over

perl v5.12.1                      2011-11-22           ExtUtils::Packlist(3pm)

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Gedruckt am: 28.06.2017 05:42 GMT+0200 (2017-06-28T05:42:07+02:00)