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# ABSTRACT: Role for actions that commit changes to the repository
package Pinto::Role::Committable;
use Moose::Role;
use MooseX::Types::Moose qw(Bool Str);
use MooseX::MarkAsMethods ( autoclean => 1 );
use Try::Tiny;
use List::MoreUtils qw(uniq);
use Pinto::Constants qw($PINTO_LOCK_TYPE_EXCLUSIVE);
use Pinto::Types qw(StackName StackDefault StackObject);
use Pinto::Util qw(is_interactive throw is_blank is_not_blank);
#------------------------------------------------------------------------------
our $VERSION = '0.097'; # VERSION
#------------------------------------------------------------------------------
with qw(Pinto::Role::Plated);
#------------------------------------------------------------------------------
has stack => (
is => 'ro',
isa => StackName | StackDefault | StackObject,
writer => '_set_stack',
default => undef,
);
has dry_run => (
is => 'ro',
isa => Bool,
default => 0,
);
has message => (
is => 'ro',
isa => Str,
predicate => 'has_message',
);
has use_default_message => (
is => 'ro',
isa => Bool,
default => 0,
);
has lock_type => (
is => 'ro',
isa => Str,
default => $PINTO_LOCK_TYPE_EXCLUSIVE,
init_arg => undef,
);
#------------------------------------------------------------------------------
requires qw( execute repo );
#------------------------------------------------------------------------------
around BUILD => sub {
my ( $orig, $self ) = @_;
# Inflate the stack into a real object. As a side
# effect, this also verifies that the stack exists.
my $stack = $self->repo->get_stack( $self->stack );
$self->_set_stack($stack);
return $self->$orig;
};
#------------------------------------------------------------------------------
around execute => sub {
my ( $orig, $self, @args ) = @_;
$self->repo->txn_begin;
my $stack = $self->stack->start_revision;
my @ok = try { $self->$orig(@args) } catch { $self->repo->txn_rollback; throw $_ };
if ( $self->dry_run ) {
$self->notice('Dry run -- rolling back database');
$self->repo->txn_rollback;
$self->repo->clean_files;
}
elsif ( $stack->refresh->has_not_changed ) {
$self->warning('No index changes were made');
$self->repo->txn_rollback;
}
else {
my $msg_title = $self->generate_message_title(@ok);
my $msg = $self->compose_message( title => $msg_title, stack => $stack );
$stack->commit_revision( message => $msg );
$self->result->changed;
$self->repo->txn_commit;
}
return $self->result;
};
#------------------------------------------------------------------------------
sub compose_message {
my ( $self, %args ) = @_;
my $title = $args{title} || '';
my $stack = $args{stack} || throw 'Must specify a stack';
my $diff = $args{diff} || $stack->diff;
return $self->message
if $self->has_message and is_not_blank( $self->message );
return $title
if $self->has_message and is_blank( $self->message );
return $title
if $self->use_default_message;
return $title
if not is_interactive;
my $cm = $self->generate_message_template($title, $stack, $diff);
my $message = $self->chrome->edit( $cm );
$message =~ s/^ [#] .* $//gmsx; # Strip comments
throw 'Aborting due to empty commit message' if is_blank($message);
return $message;
}
#------------------------------------------------------------------------------
sub generate_message_title {
my ( $self, @items, $extra ) = @_;
my $class = ref $self;
my ($action) = $class =~ m/ ( [^:]* ) $/x;
my $title = "$action " . join( ', ', uniq(sort @items) ) . ( $extra ? " $extra" : '' );
return $title;
}
#------------------------------------------------------------------------------
sub generate_message_template {
my ( $self, $title, $stack, $diff ) = @_;
# Prepend "#" to each line of the diff,
# so they are treated as comments.
$diff =~ s/^/# /gm;
my $msg = <<"END_MESSAGE";
$title
#-------------------------------------------------------------------------------
# Please edit or amend the message above as you see fit. The first line of the
# message will be used as the title. Any line that starts with a "#" will be
# ignored. To abort the commit, delete the entire message above, save the file,
# and close the editor.
#
# Changes to be committed to stack $stack:
#
$diff
END_MESSAGE
chomp $msg;
return $msg;
}
#------------------------------------------------------------------------------
1;
__END__
=pod
=encoding UTF-8
=for :stopwords Jeffrey Ryan Thalhammer
=head1 NAME
Pinto::Role::Committable - Role for actions that commit changes to the repository
=head1 VERSION
version 0.097
=head1 AUTHOR
Jeffrey Ryan Thalhammer <jeff@stratopan.com>
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2013 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
|
