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#!/usr/bin/perl

=head1 NAME

ebug-client - Debugger client for remote debugging Perl script

=head1 SYNOPSIS

ebug-client -key <secret> -port <port>

=head1 DESCRIPTION

ebug-client is an debugger front end for attaching to
remotely executing perl script, running on ebug-server.

To invoke ebug-client, you must first invoke ebug-server to
run debuggee and generate "key" and "port" needed for connection.
When ebug-server is invoked, it will show exact command-line to
invoke ebug-client.

=head1 EXAMPLE

 # Attach to ebug-server running on port 4023, with key "begripra"
 $ ebug-client -key begripra -port 4023

=head1 NOTE

Currently, you cannot "restart" debuggee. You'll need to
restart one manually by re-invoking both ebug-server and
ebug-client.

Since Devel::ebug::Backend listens to "localhost" socket,
you will need to relay I/O using tool like socat for true
remote debugging.

Internally, thanks for it being free software, it is almost
a complete ripoff of Devel::ebug source.

=head1 SEE ALSO

L<Devel::debug>, L<ebug>, L<ebug-server>

=head1 AUTHOR

Taisuke Yamada, <tyamadajp!list!rakugaki!org>

=cut

package Devel::ebug;

use Devel::ebug;
use IO::Socket::INET;
use strict;
use warnings;

our $VERSION = $Devel::ebug::VERSION;
our $ARG     = {};

# Replace 'load' with one that just attaches
sub load {
    my $self    = shift;
    $self->attach($ARG->{port}, $ARG->{key});
}

package main;

use Devel::ebug::Console;
use Getopt::Long;
use strict;
use warnings;

GetOptions( my $OPT = {}, 'help', 'port=i', 'key=s' ) || help();
help() if $OPT->{help};

$Devel::ebug::ARG = $OPT;
my $console = Devel::ebug::Console->new();
$console->run();
exit(0);

sub help {
    print STDERR <<EOF;
Usage: $0 -key <secret> -port <port> -- debuggee args...
EOF
    exit(1);
}