#!/usr/bin/perl -w
# Program to install links if necessary (does nothing if already there)
# $Id: install-links,v 1.3 1999/12/31 06:13:17 earl Exp $

# Copyright (c) 2000 by Earl A. Killian.  All Rights Reserved.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
#
# 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; see the file COPYING.  If not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
# MA 02111-1307, USA.

package installlinks;

use strict;

use Getopt::Long;
use File::Basename;

{
  $::myname = 'install-links';

  my $nodo = 0;
  my $verbose = 1;
  die ("Usage is: $::myname [-n] files...\n")
    unless GetOptions ("n!" => \$nodo,
		       "v!" => \$verbose)
      && @ARGV > 0;

  my $to;
  foreach $to (@ARGV) {
    my ($name, $path) = fileparse($to);
    my $current = readlink($name);
    if (!defined($current) || $current ne $to) {
      if (!$nodo) {
	unlink ($name);
	symlink ($to, $name)
	  || die("$::myname: $!, symlinking $name to $to.\n");
      }
      print STDOUT ("$::myname: Info: linked $name to $to.\n")
	if $verbose;
    }
  }
}


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