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THALJEF / Pinto-0.0998 / lib / Pinto / Action / Merge.pm 

            

              
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# ABSTRACT: Join two stack histories together
package Pinto::Action::Merge;
use Moose;
use MooseX::StrictConstructor;
use MooseX::Types::Moose qw(Bool);
use MooseX::MarkAsMethods ( autoclean => 1 );
use Pinto::Util qw(throw);
use Pinto::Types qw(StackName StackObject StackDefault);
#------------------------------------------------------------------------------
our $VERSION = '0.0998'; # VERSION
#------------------------------------------------------------------------------
extends qw( Pinto::Action );
#------------------------------------------------------------------------------
with qw( Pinto::Role::Transactional );
#------------------------------------------------------------------------------
has from_stack => (
    is       => 'ro',
    isa      => StackName | StackObject,
    required => 1,
);
has into_stack => (
    is       => 'ro',
    isa      => StackName | StackObject | StackDefault,
    default  => undef,
);
#------------------------------------------------------------------------------
sub execute {
    my ($self) = @_;
    my $from_stack = $self->repo->get_stack($self->from_stack);
    my $from_head  = $from_stack->head;
    my $into_stack = $self->repo->get_stack($self->into_stack);
    my $into_head  = $into_stack->head;
    return 1 && $self->warning("Both stacks are the same ($into_head)")
        if $into_head->id == $from_head->id;
    throw "Recursive merge is not supported yet"
        unless $from_head->is_descendant_of($into_head);
    $into_stack->update({head => $from_head->id});
    $into_stack->write_index;
    my $format = '%i: %{40}T';
    $self->diag("Fast-forward...");
    $self->diag("Stack $into_stack was " . $into_head->to_string($format));
    $self->diag("Stack $into_stack now " . $from_head->to_string($format));
    return 1;
}
#------------------------------------------------------------------------------
__PACKAGE__->meta->make_immutable;
#------------------------------------------------------------------------------
1;
__END__
=pod
=encoding UTF-8
=for :stopwords Jeffrey Ryan Thalhammer
=head1 NAME
Pinto::Action::Merge - Join two stack histories together
=head1 VERSION
version 0.0998
=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