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#-*- perl -*-
#
# Copyright (C) 2004 Ken'ichi Fukamachi
# All rights reserved. This program is free software; you can
# redistribute it and/or modify it under the same terms as Perl itself.
#
# $FML: @template.pm,v 1.8 2004/01/01 07:29:27 fukachan Exp $
#
package FML::Merge;
use strict;
use vars qw(@ISA @EXPORT @EXPORT_OK $AUTOLOAD);
use Carp;
use FML::Merge::Utils;
push(@INC, qw(FML::Merge::Utils));
=head1 NAME
FML::Merge - merge other system configurations to fml8 ones.
=head1 SYNOPSIS
=head1 DESCRIPTION
=cut
# Descriptions: constructor.
# Arguments: OBJ($self) OBJ($curproc) HASH_REF($params)
# Side Effects: none
# Return Value: OBJ
sub new
{
my ($self, $curproc, $params) = @_;
my ($type) = ref($self) || $self;
my $me = {
_curproc => $curproc,
_params => $params,
};
# import variables: ml_* ...
for my $x (keys %$params) {
$me->{ "_$x" } = $params->{ $x } if defined $params->{ $x };
};
# back up to $ml_home_dir/.fml4rc/ directory.
use File::Spec;
my $ml_home_dir = $params->{ ml_home_dir } || '';
if ($ml_home_dir) {
my $x_dir = File::Spec->catfile($ml_home_dir, ".fml4rc");
$me->{ _backup_dir } = $x_dir;
$curproc->mkdir($x_dir, "mode=private") unless -d $x_dir;
}
else {
croak("specify \$ml_home_dir");
}
return bless $me, $type;
}
# Descriptions: specify target system.
# Arguments: OBJ($self) STR($system)
# Side Effects: none
# Return Value: none
sub set_target_system
{
my ($self, $system) = @_;
# dummy yet.
}
=head1 BACK UP CONFIGURATION FILES
=cut
# Descriptions: back up old configuration files.
# Arguments: OBJ($self)
# Side Effects: move or copy files.
# Return Value: none
sub backup_old_config_files
{
my ($self) = @_;
use FML::Merge::FML4::Config;
my $config = new FML::Merge::FML4::Config;
my $files = $config->get_old_config_files();
for my $f (@$files) {
my $mode = $self->_need_copy() ? "copy" : $config->backup_mode($f);
my $src = $self->old_file_path($f);
my $dst = $self->backup_file_path($f);
if ($mode eq 'move') {
printf STDERR "mv %-30s %-30s\n", $src, $dst;
}
elsif ($mode eq 'copy') {
printf STDERR "cp %-30s %-30s\n", $src, $dst;
}
else {
print STDERR "unknown mode (DO NOTHING).\n";
}
}
}
# Descriptions: check if we always need copy files to back up dir.
# Arguments: OBJ($self)
# Side Effects: none
# Return Value: NUM(1 or 0)
sub _need_copy
{
my ($self) = @_;
my $old_home_dir = $self->{ _src_dir };
my $ml_home_dir = $self->{ _ml_home_dir };
if ($old_home_dir ne $ml_home_dir) {
return 1;
}
else {
return 0;
}
}
=head1 DISABLE INCLUDE FILES
To cause temporary failure, disable old include* files by changing it
to "exit 75".
Code 75 depends on the value of EX_TEMPFAIL of your system. See
/usr/include/sysexit.h for more details.
For example, the value of NetBSD follows.
EX_TEMPFAIL -- temporary failure, indicating something that
is not really an error. In sendmail, this means
that a mailer (e.g.) could not create a connection,
and the request should be reattempted later.
=cut
sub disable_include_files
{
my ($self) = @_;
use FML::Merge::FML4::Config;
my $config = new FML::Merge::FML4::Config;
my $files = $config->get_old_include_files();
for my $f (@$files) {
my $file = $self->old_file_path($f);
print STDERR "disable $file\n";
}
}
=head1
=cut
sub convert_list_files
{
my ($self) = @_;
my $curproc = $self->{ _curproc };
my $params = $self->{ _params } || {};
use FML::Merge::FML4::List;
my $list = new FML::Merge::FML4::List $curproc, $params;
$list->convert();
}
=head1 UTILITIES
=cut
sub old_file_path
{
my ($self, $file) = @_;
my $old_home_dir = $self->{ _src_dir };
use File::Spec;
return File::Spec->catfile($old_home_dir, $file);
}
sub new_file_path
{
my ($self, $file) = @_;
my $ml_home_dir = $self->{ _ml_home_dir };
use File::Spec;
return File::Spec->catfile($ml_home_dir, $file);
}
sub backup_file_path
{
my ($self, $file) = @_;
my $back_up_dir = $self->{ _backup_dir };
use File::Spec;
return File::Spec->catfile($back_up_dir, $file);
}
=head1 CODING STYLE
See C<http://www.fml.org/software/FNF/> on fml coding style guide.
=head1 AUTHOR
Ken'ichi Fukamachi
=head1 COPYRIGHT
Copyright (C) 2004 Ken'ichi Fukamachi
All rights reserved. This program is free software; you can
redistribute it and/or modify it under the same terms as Perl itself.
=head1 HISTORY
FML::Merge appeared in fml8 mailing list driver package.
See C<http://www.fml.org/> for more details.
=cut
1;
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