package Cvs::Command::Diff;
use strict;
use Cvs::Result::DiffList;
use Cvs::Result::DiffItem;
use base qw(Cvs::Command::Base);
sub init
{
my($self, @file_list) = @_;
$self->SUPER::init(@_) or return;
$self->default_params
(
multiple => 0,
recursive => 1,
from_date => undef,
to_date => undef,
from_revision => undef,
to_revision => undef,
);
my $param = pop @file_list
if ref $file_list[-1] eq 'HASH';
$param = $self->param($param||{});
return
$self->error('can\'t have more than one source type')
if((defined $self->param->{from_date}
and defined $self->param->{from_revision}));
return
$self->error('can\'t have more than one destination type')
if((defined $self->param->{to_date}
and defined $self->param->{to_revision}));
return
$self->error('can\'t have a destination without a source')
if((defined $self->param->{to_revision}
or defined $self->param->{to_date})
and
(not defined $self->param->{from_revision}
and not defined $self->param->{from_revision}));
$self->command('diff');
$self->push_arg('-u2', '-N');
$self->push_arg('-r', $self->param->{from_revision})
if defined $self->param->{from_revision};
$self->push_arg('-D', $self->param->{from_date})
if defined $self->param->{from_date};
$self->push_arg('-r', $self->param->{to_revision})
if defined $self->param->{to_revision};
$self->push_arg('-D', $self->param->{to_date})
if defined $self->param->{to_date};
$self->push_arg(@file_list);
my $main = $self->new_context();
$self->initial_context($main);
my $resultlist;
my $result = $self->err_result('No file in response');
$self->result($result);
$main->push_handler
(
qr/^Index: (.*)\n$/, sub
{
my($match) = @_;
if($self->param->{multiple})
{
unless(defined $resultlist)
{
$resultlist = new Cvs::Result::DiffList;
$self->result($resultlist);
}
$result = new Cvs::Result::DiffItem;
$resultlist->push($result);
}
else
{
if($result->isa('Cvs::Result::DiffItem'))
{
# first item is complete, don't continue
return $main->finish()
}
else
{
$result = new Cvs::Result::DiffItem;
$self->result($result);
}
}
$result->success(1);
$result->filename($match->[1]);
$result->push_diff($match->[0]);
}
);
$main->push_handler
(
qr/^=+$/, sub
{
$result->push_diff(shift->[0]);
}
);
$main->push_handler
(
qr/^RCS file: (.*)\n$/, sub
{
my($match) = @_;
$result->rcs_file($match->[1]);
$result->push_diff($match->[0]);
}
);
$main->push_handler
(
qr/^retrieving revision .*$/, sub
{
$result->push_diff(shift->[0]);
}
);
$main->push_handler
(
qr/^diff .*(?:-r([.\d]+)).*(?: -r([.\d]+))?.*$/, sub
{
my($match) = @_;
$result->from_revision($match->[1]);
$result->to_revision($match->[2]);
$result->push_diff($match->[0]);
}
);
$main->push_handler
(
qr/^cvs server: .*$/, sub
{
# do nothing
}
);
$main->push_handler
(
qr/^\? /, sub
{
# do nothing
}
);
$main->push_handler
(
qr/^[\-\+@ ]/, sub
{
my $line = shift->[0];
if(index($line, '--- /dev/null') == 0)
{
warn "new";
$result->is_added(1);
}
elsif(index($line, '+++ /dev/null') == 0)
{
$result->is_removed(1);
}
$result->push_diff($line);
}
);
return $self;
}
1;
=pod
=head1 LICENCE
This library is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This library is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA
=head1 COPYRIGHT
Copyright (C) 2003 - Olivier Poitrey