usage: Print metavariables in SHOUTY letters.
[sw-tools] / perl / SWConfig.pm.in
1 # -*-perl-*-
2 #
3 # $Id: SWConfig.pm.in,v 1.2 2004/04/08 01:52:19 mdw Exp $
4 #
5 # Exports configuration variables
6 #
7 # (c) 1999 EBI
8 #
9
10 #----- Licensing notice -----------------------------------------------------
11 #
12 # This file is part of sw-tools.
13 #
14 # sw-tools is free software; you can redistribute it and/or modify
15 # it under the terms of the GNU General Public License as published by
16 # the Free Software Foundation; either version 2 of the License, or
17 # (at your option) any later version.
18 #
19 # sw-tools is distributed in the hope that it will be useful,
20 # but WITHOUT ANY WARRANTY; without even the implied warranty of
21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 # GNU General Public License for more details.
23 #
24 # You should have received a copy of the GNU General Public License
25 # along with sw-tools; if not, write to the Free Software Foundation,
26 # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27
28 #----- Package preamble -----------------------------------------------------
29
30 package SWConfig;
31 use IO;
32 use Exporter;
33 @ISA = qw(Exporter);
34 @EXPORT = qw(%C);
35
36 #----- Configuration variables ----------------------------------------------
37
38 %C = ();
39 $C{pkg} = '@PACKAGE@';
40 $C{version} = '@VERSION@';
41 $C{prefix} = '@prefix@';
42 $C{datadir} = '@datadir@';
43 $C{index} = '${prefix}/sw-index';
44 $C{doc} = '${prefix}/doc';
45
46 foreach my $k (qw(datadir index doc)) {
47 $C{$k} =~ s/\$\{(\w+)\}/$C{$1}/eg;
48 }
49
50 #----- Read a configuration file --------------------------------------------
51
52 if (my $fh = IO::File->new("$C{datadir}/sw.conf")) {
53 LINE: while (my $line = $fh->getline()) {
54 chomp($line);
55 next LINE if $line =~ /^\s*\#/ || $line =~ /^\s*$/;
56 my ($k, $v) = split(/\s*=\s*|\s+/, $line, 2);
57 $v =~ s/\$\{(\w+)\}/$C{$1}/eg;
58 $C{$k} = $v;
59 }
60 }
61
62 #----- That's all, folks ----------------------------------------------------
63
64 1;