# ABSTRACT: mark the default stack

package App::Pinto::Command::default;

use strict;
use warnings;

#-----------------------------------------------------------------------------

use base 'App::Pinto::Command';

#------------------------------------------------------------------------------

our $VERSION = '0.0998'; # VERSION

#------------------------------------------------------------------------------

sub opt_spec {
    my ( $self, $app ) = @_;

    return ( [ 'none' => 'Unmark the default stack' ] );
}

#-----------------------------------------------------------------------------

sub validate_args {
    my ( $self, $opts, $args ) = @_;

    $self->usage_error('Cannot specify multiple stacks')
        if @{$args} > 1;

    $self->usage_error('Must specify a STACK or --none')
        if !( @{$args} xor $opts->{none} );

    return 1;
}

#------------------------------------------------------------------------------

sub execute {
    my ( $self, $opts, $args ) = @_;

    $opts->{stack} = $args->[0] if $args->[0];

    my $result = $self->pinto->run( $self->action_name, %{$opts} );

    return $result->exit_status;
}

#------------------------------------------------------------------------------
1;

__END__

=pod

=encoding UTF-8

=for :stopwords Jeffrey Ryan Thalhammer unmark unmarks

=head1 NAME

App::Pinto::Command::default - mark the default stack

=head1 VERSION

version 0.0998

=head1 SYNOPSIS

  pinto --root=REPOSITORY_ROOT default [OPTIONS] [STACK]

=head1 DESCRIPTION

This command marks the given C<STACK> as the default stack for the
repository.  The existing default stack (if one exists) is thereby
unmarked.  The default stack is used by most L<pinto> commands where a
stack is not explicitly specified either by option or argument.

If the C<--none> option is given instead of a C<STACK> argument, then
the default stack is unmarked (if one exists).  When a repository has
no default stack, you will have to explicitly specify the stack
as option or argument for most L<pinto> commands.

Use the L<stacks|App::Pinto::Command::stacks> command to list the
stacks that currently exist in the repository and show which one is
the default.

=head1 BEWARE

Think carefully before changing the default stack.  This will
dramatically affect all users of the repository, so it is wise to
notify them well in advance.

=head1 COMMAND ARGUMENTS

The argument is the name of the stack you wish to mark as the default.
The stack must already exist.  A stack argument cannot be used when the
C<--none> option is specified.

=head1 COMMAND OPTIONS

=over 4

=item --none

Unmarks the default stack (if one exists).  This option cannot be used
when the C<STACK> argument is specified.

=back

=head1 AUTHOR

Jeffrey Ryan Thalhammer <jeff@stratopan.com>

=head1 COPYRIGHT AND LICENSE

This software is copyright (c) 2014 by Jeffrey Ryan Thalhammer.

This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.

=cut