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|
use strict;
use warnings;
package App::ClusterSSH::Helper;
# ABSTRACT: ClusterSSH::Helper - Object representing helper script
=head1 SYNOPSIS
=head1 DESCRIPTION
Object representing application configuration
=cut
use Carp;
use Try::Tiny;
use base qw/ App::ClusterSSH::Base /;
sub new {
my ( $class, %args ) = @_;
my $self = $class->SUPER::new(%args);
return $self;
}
sub script {
my ( $self, $config ) = @_;
if ( !defined $config
|| !ref $config
|| ref $config ne "App::ClusterSSH::Config" )
{
croak(
App::ClusterSSH::Exception::Helper->throw(
error => 'No configuration provided or in wrong format',
),
);
}
foreach my $arg ( "comms", $config->{comms}, $config->{comms} . '_args',
'command', 'auto_close' )
{
if ( !defined $config->{$arg} ) {
croak(
App::ClusterSSH::Exception::Helper->throw(
error => "Config '$arg' not provided",
),
);
}
}
my $command_pre = $config->{command_pre} || q{};
my $command_post = $config->{command_post} || q{};
my $comms = $config->{ $config->{comms} };
my $comms_args = $config->{ $config->{comms} . '_args' };
my $config_command = $config->{command};
my $autoclose = $config->{auto_close};
my $postcommand
= $autoclose
? "echo Sleeping for $autoclose seconds; sleep $autoclose"
: "echo Press RETURN to continue; read IGNORE"
; # : "sleep $autoclose";
my $script = <<" HERE";
my \$pipe=shift;
my \$svr=shift;
my \$user=shift;
my \$port=shift;
my \$mstr=shift;
my \$command="$command_pre $comms $comms_args ";
open(PIPE, ">", \$pipe) or die("Failed to open pipe: \$!\\n");
print PIPE "\$\$:\$ENV{WINDOWID}"
or die("Failed to write to pipe: $!\\n");
close(PIPE) or die("Failed to close pipe: $!\\n");
if(\$svr =~ m/==\$/)
{
\$svr =~ s/==\$//;
warn("\\nWARNING: failed to resolve IP address for \$svr.\\n\\n"
);
sleep 5;
}
if(\$mstr) {
unless("$comms" ne "console") {
\$mstr = \$mstr ? "-M \$mstr " : "";
\$command .= \$mstr;
}
}
if(\$user) {
unless("$comms" eq "telnet") {
\$user = \$user ? "-l \$user " : "";
\$command .= \$user;
}
}
if("$comms" eq "telnet") {
\$command .= "\$svr \$port";
} else {
if (\$port) {
\$command .= "-p \$port \$svr";
} else {
\$command .= "\$svr";
}
}
if("$config_command") {
\$command .= " \\\"$config_command\\\"";
}
\$command .= "$command_post";
\$command .= " ; $postcommand";
# provide some info for debugging purposes
warn("Running: \$command\\n");
exec(\$command);
HERE
$self->debug( 4, $script );
$self->debug( 2, 'Helper script done' );
return $script;
}
#use overload (
# q{""} => sub {
# my ($self) = @_;
# return $self->{hostname};
# },
# fallback => 1,
#);
1;
=head1 METHODS
=over 4
=item $host=ClusterSSH::Helper->new ({ })
Create a new helper object.
=item $host=ClusterSSH::Helper->script ({ })
Return the helper script
=back
|
