# -*- perl -*-
#
# Test::AutoBuild::Repository::CVS by Daniel Berrange <dan@berrange.com>
#
# Copyright (C) 2002-2004 Daniel Berrange <dan@berrange.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# $Id: CVS.pm,v 1.15 2006/02/02 10:30:48 danpb Exp $

=pod

=head1 NAME

Test::AutoBuild::Repository::CVS - A repository for CVS

=head1 SYNOPSIS

  use Test::AutoBuild::Repository::CVS


=head1 DESCRIPTION

This module provides access to source within a CVS repository.

=head1 METHODS

=over 4

=cut

package Test::AutoBuild::Repository::CVS;

use strict;
use warnings;
use POSIX qw(strftime);
use Log::Log4perl;

use base qw(Test::AutoBuild::Repository);


sub export {
    my $self = shift; 
    my $runtime = shift;
    my $src = shift;
    my $dst = shift;

    my $log = Log::Log4perl->get_logger();

    my $branch;
    if ($src =~ /(.*):((?:\w|-)+)$/) {
	$branch = $2;
	$src = $1;
    }

    if ($branch &&
	$branch eq "HEAD") {
	$log->warn("Illegal tag HEAD - only branch tags are allowed");
	$branch = undef;
    }

    my $date = strftime("%d %b %Y %H:%M:%S +0000", gmtime $runtime->timestamp);
    
    my $output;
    if (-e $dst) {
	$output = $branch ? 
	    $self->_run("cd $dst && cvs -q update -D '$date' -r $branch -APdC") :
	    $self->_run("cd $dst && cvs -q update -D '$date' -APdC");
    } else {
	$output = $branch ? 
	    $self->_run("cvs -q checkout -D '$date' -d $dst -r $branch -P $src") :
	    $self->_run("cvs -q checkout -D '$date' -d $dst -P $src");
    }

    $log->debug($output);

    # Crude change checking - any line which doesn't
    # look like a directrory traversal message treated
    # as indicating a change
    my $changed = 0;
    foreach (split /\n/, $output) {
	next if /^cvs server:/;
	next if /^\s*\?/;
	$changed = 1;
    }

    return $changed;
}



1 # So that the require or use succeeds.

__END__

=back

=head1 AUTHORS

Daniel Berrange <dan@berrange.com>

=head1 COPYRIGHT

Copyright (C) 2002-2004 Daniel Berrange <dan@berrange.com>

=head1 SEE ALSO

C<perl(1)>, L<Test::AutoBuild::Repository>

=cut