I just inherited a bunch of code and noticed an interesting way to automatically delete a specified set of directories when the program terminates. I am posting it here to get confirmation that it is using a sound technique. Plus, I'm interested in seeing alternative and better ways to do it.

Here is the file MyTemp.pm: 

package MyTemp;
use strict;
use warnings;

my $On_close = _Knob->new();

sub delete_on_close { $On_close->add(@_) }

package _Knob;

use File::Path ();

sub new {
    my $class = shift;
    bless([], $class);
}

sub add {
    my $self = shift;
    push(@{$self}, @_);
}

sub DESTROY {
    my $self = shift;
    print "Deleting dirs:\n";
    print "   $_\n" for @{$self};
    File::Path::rmtree(\@{$self});
}

1;

[download]
and here is an example program that uses it: 
use strict;
use warnings;

use MyTemp;

MyTemp::delete_on_close('this-dir-tmp');
MyTemp::delete_on_close('that-dir-1-tmp', 'that-dir-2-tmp');

# do stuff...

# Directories this-dir-tmp, that-dir-1-tmp, that-dir-2-tmp are
# automatically deleted on program exit.

[download]

In reply to Automatically deleting selected directories on program exit by eyepopslikeamosquito

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