I am writing a program that does the same thing with Net::OpenSSH. I've created a OO role written in Moose that wraps Net::OpenSSH and I send commands through the objects that use the role. I call it with: WebServerRemote->new({ssh => 'me@198.168.1.2'}); Then I execute commands like this: $self->grab('ls -l') where "grab" is a wrapper for the capture command. Here's a rough skeleton of it:

package MyOpenSSH 0.000001;

use Carp;
use Moose::Role;
use Modern::Perl;
use Net::OpenSSH;
use Params::Validate;

has 'ssh' => (is => 'rw', isa => 'Net::OpenSSH', required => 1, lazy =
+> 0, handles => qr/.*/, );

sub BUILD {
  # do object validation stuff here
}

sub exec {
  my $self = shift;
  my $opts = shift;

  if (ref $opts eq 'HASH') {
    my $cmd = shift;
    $self->ssh->system($opts, $cmd) || croak 'Command failed: ' . $sel
+f->ssh->error;
  } else {
    my $cmd = $opts;
    $self->ssh->system($cmd, @_) || croak 'Command failed: ' . $self->
+ssh->error;
  }
}

# wrapper for capture method
# this has been edited to simplify and fix a bug since last post.
sub grab {
  my $self = shift;

  return $self->ssh->capture(@_) if !$self->ssh->error;
  croak ('ssh command failed');
}

[download]

DISCLAIMER: this code is still a work in progress and was written mostly as an experiment as a way for me to get more proficient with Moose and I haven't worked out some details with it. But maybe this will inspire some ideas for you.

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In reply to Re: How best to validate the keys of hashref arguments? by nysus
in thread How best to validate the keys of hashref arguments? by cbeckley

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