# Copyright (C) 2011-2012 Rocky Bernstein <rocky@cpan.org>
# Code adapted from Perl 5's perl5db.pl
# -*- coding: utf-8 -*-
use warnings; no warnings 'redefine';
use rlib '../../../..';

package Devel::Trepan::CmdProcessor::Command::Restart;
use English qw( -no_match_vars );

use if !@ISA, Devel::Trepan::CmdProcessor::Command ;
unless (@ISA) {
    eval <<'EOE';
use constant ALIASES    => ('R');
use constant CATEGORY   => 'running';;
use constant SHORT_HELP => '(Hard) restart of program via exec()';
use constant MIN_ARGS   => 0;     # Need at least this many
use constant MAX_ARGS   => undef; # Need at most this many - undef -> unlimited.
EOE
}

use strict;
use vars qw(@ISA);
@ISA = @CMD_ISA;
use vars @CMD_VARS;  # Value inherited from parent

our $NAME = set_name();
our $HELP = <<"HELP";
=pod

B<restart>

Restart debugger and program via an I<exec()> call.

See also C<show args> for the exact invocation that will be used.
=cut
HELP

# This method runs the command
sub run($$) {
    my ($self, $args) = @_;
    my $proc = $self->{proc};
    my $dbgr = $proc->{dbgr};

    # I may not be able to resurrect you, but here goes ...
    $self->msg("Warning: some settings and command-line options may be lost!");

    my @script = $proc->restart_args();

    # $self->msg( "Running: " . join(' ', @script));

    # And run Perl again.  We use exec() to keep the
    # PID stable (and that way $ini_pids is still valid).
    exec(@script) || $self->errmsg("exec failed: $!");

}

unless (caller()) {
    require Devel::Trepan::CmdProcessor::Mock;
    my $proc = Devel::Trepan::CmdProcessor::Mock::setup();
    my $cmd = Devel::Trepan::CmdProcessor::Command::Restart->new($proc);
}

1;