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package VCP ;
=head1 NAME
VCP - Versioned Copy, copying hierarchies of versioned files
=head1 SYNOPSIS
see the vcp command line.
=head1 DESCRIPTION
This module copies hierarchies of versioned files between repositories, and
between repositories and RevML (.revml) files.
Stay tuned for more documentation.
=head1 METHODS
=over
=for test_scripts t/10vcp.t t/50revml.t
=cut
$VERSION = 0.9 ;
$CHANGE_ID = ( q$Change: 4232 $ =~ /(\d+)/ )[0];
$DATE = ( q$Date: 2004/03/18 $ =~ /(\d[\d[:punct:]]+\d)/ )[0];
use strict ;
use VCP::Logger qw( lg pr );
require VCP::Plugin;
require VCP::Source;
require VCP::Dest;
#use fields (
# 'PLUGINS', # The VCP::Source to pull data from
#) ;
=item new
$ex = VCP->new( $source, $dest ) ;
where
$source is an instance of VCP::Source
$dest is an instance of VCP::Dest
=cut
sub new {
my $class = shift;
my $self = bless {}, $class;
my $w = length $#_;
for ( my $i = 0; $i <= $#_; ++$i ) {
lg sprintf "plugin %${w}d is %s", $i, ref $_[$i];
}
$self->{PLUGINS} = [ @_ ];
## Make sure that plugins are DESTROY-able and can clean up any mess
## they make even if the VCP object is still referred to somewhere,
## like a global variable or a plugin.
$self->{PLUGIN_CLEANUP} = sub { @{$self->{PLUGINS}} = () };
VCP::Plugin->queue_END_sub( $self->{PLUGIN_CLEANUP} );
return $self ;
}
sub DESTROY {
my $self = shift;
VCP::Plugin->cancel_END_sub( $self->{PLUGIN_CLEANUP} );
}
=item insert_required_sort_filter
Called if a sorting filter must be inserted.
Does nothing if there's already a sort filter in place.
=cut
sub insert_required_sort_filter {
my $self = shift ;
my @sort_keys;
for ( @{$self->{PLUGINS}}[ 1 .. $#{$self->{PLUGINS}} - 1 ] ) {
@sort_keys = $_->sort_keys( @sort_keys );
}
my @sort_filters = $self->{PLUGINS}->[-1]->sort_filters( @sort_keys );
if ( @sort_filters ) {
pr "appending required ",
join( ", ", map $_->filter_name, @sort_filters ),
@sort_filters == 1 ? " filter" : " filters";
splice @{$self->{PLUGINS}}, -1, 0, @sort_filters;
}
}
=item copy_all
$vcp->copy_all( $header, $footer ) ;
Calls $source->handle_header, $source->copy_revs, and $source->handle_footer.
=cut
sub copy_all {
my $self = shift ;
my ( $header, $footer ) = @_ ;
lg "Plugins: ",
join ", ",
map $_->isa( "VCP::Filter" ) ? $_->filter_name : ref $_,
@{$self->{PLUGINS}};
{
my $dest = $self->{PLUGINS}->[-1];
for ( reverse @{$self->{PLUGINS}}[0..$#{$self->{PLUGINS}} -1] ) {
$_->dest( $dest );
$dest = $_;
}
}
local $VCP::vcp = $self; ## for debugging dumps
my $s = $self->{PLUGINS}->[0];
my $ok = eval {
$s->handle_header( $header ) ;
$s->copy_revs() ;
$s->handle_footer( $footer ) ;
1;
};
if ( ! $ok ) {
my $x = $@;
VCP::Logger::_interrupt_progress();
die $x;
}
## Removing this link allows the dest to be cleaned up earlier by perl,
## which keeps VCP::RefCountedFile from complaining about undeleted revs.
$s->dest( undef ) ;
return ;
}
=back
=head1 COPYRIGHT
Copyright 2000, Perforce Software, Inc. All Rights Reserved.
This module and the VCP package are licensed according to the terms given in
the file LICENSE accompanying this distribution, a copy of which is included in
L<vcp>.
=head1 AUTHOR
Barrie Slaymaker <barries@slaysys.com>
=cut
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