#!/usr/bin/perl -w -I/opt/eprints/perl_lib

######################################################################
#
#  This file is part of GNU EPrints 2.
#  
#  Copyright (c) 2000-2004 University of Southampton, UK. SO17 1BJ.
#  
#  EPrints 2 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.
#  
#  EPrints 2 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 EPrints 2; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
######################################################################


=pod

=head1 NAME

B<force_config_reload> - Force the webserver to reload the configuration of this repository.

=head1 SYNOPSIS

B<force_config_reload> I<repository_id> [B<options>] 

=head1 DESCRIPTION

This command forces the webserver to reload the config files for the given repository.

This is very useful, but the webserver will only reload the config files in the "forked" versions of itself, but the origional. This will generate a major extra load each time the webserver forks of a process.

This command offers a B<temporary> solution to the problem only. You should still restart apache at some point.

All this file really does is create an empty file named .changed in the repositories own var/ directory. The main system, running in the webservers mod_perl, looks at the time this file was last modified. If this file has changed since the repository configuration was loaded then it forces a reload.

=head1 ARGUMENTS

=over 8

=item B<repository_id> 

The ID of the eprint repository to force a reload on.

=back

=head1 OPTIONS

=over 8

=item B<--help>

Print a brief help message and exit.

=item B<--man>

Print the full manual page and then exit.

=item B<--quiet>

Be vewwy vewwy quiet. This option will supress all output unless an error occurs.

=item B<--verbose>

Explain in detail what is going on.
May be repeated for greater effect.

=item B<--version>

Output version information and exit.

=back   

=head1 AUTHOR

This is part of this EPrints 2 system. EPrints 2 is developed by Christopher Gutteridge.

=head1 VERSION

EPrints Version: eprints-2-cvs-2006-06-27

=head1 CONTACT

For more information goto B<http://www.eprints.org/> which give information on mailing lists and the like.

Chris Gutteridge may be contacted at B<support@eprints.org>

Should you need a real world address for some reason, EPrints can be contacted in the real world at

 EPrints c/o Christopher Gutteridge
 Department of Electronics and Computer Science
 University of Southampton
 SO17 1BJ
 United Kingdom

=head1 COPYRIGHT

This file is part of GNU EPrints 2.

Copyright (c) 2000-2004 University of Southampton, UK. SO17 1BJ.

EPrints 2 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.

EPrints 2 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 EPrints 2; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


=cut

use EPrints;

use File::Copy;
use File::Find;
use strict;
use Getopt::Long;
use Pod::Usage;

my $version = 0;
my $verbose = 0;
my $quiet = 0;
my $help = 0;
my $man = 0;

GetOptions( 
	'help|?' => \$help,
	'man' => \$man,
	'version' => \$version,
	'verbose+' => \$verbose,
	'silent' => \$quiet,
	'quiet' => \$quiet
) || pod2usage( 2 );
EPrints::Utils::cmd_version( "force_config_reload" ) if $version;
pod2usage( 1 ) if $help;
pod2usage( -exitstatus => 0, -verbose => 2 ) if $man;
pod2usage( 2 ) if( scalar @ARGV != 1 ); 

our $noise = 1;
$noise = 0 if( $quiet );
$noise = 1+$verbose if( $verbose );

# Set STDOUT to auto flush (without needing a \n)
$|=1;

my $session = new EPrints::Session( 1 , $ARGV[0] , $noise );
exit( 1 ) unless( defined $session );

my $file = $session->get_repository->get_conf( "variables_path" )."/last_changed.timestamp";
unless( open( CHANGEDFILE, ">$file" ) )
{
	EPrints::Config::abort( "Cannot write to file $file" );
}
print CHANGEDFILE "This file last poked at: ".EPrints::Utils::get_timestamp()."\n";
close CHANGEDFILE;
if( $noise > 0 )
{
	print <<END;
The repository config will be reloaded, but you should still restart apache as
soon as possible.
END
}
$session->terminate();
	
exit;
