--- /dev/null
+#!/usr/bin/perl
+
+# This file is part of Koha.
+#
+# Koha 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.
+#
+# Koha 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
+# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
+# Suite 330, Boston, MA 02111-1307 USA
+
+=head1 NAME
+
+syspref-diff.pl <syspref-file-1> <syspref-file-2>
+
+For example:
+
+ cd <koharoot>/installer/data/mysql
+ syspref-diff.pl en/mandatory.sql fr-FR/1-Obligatoire/unimarcsp.sql
+
+=head1 DESCRIPTION
+
+Make a diff between two Koha syspref files.
+'en' syspref file beeing authoritative, this script identifies
+variables to be added/deleted in another language syspref file.
+
+=cut
+
+use strict;
+
+
+my $file1 = shift @ARGV;
+my $file2 = shift @ARGV;
+
+open FILE1, "<$file1" or die "Unable to open $file1\n";
+open FILE2, "<$file2" or die "Unable to open $file2\n";
+
+my (%syspref1, %syspref2);
+my $variable;
+
+while ( <FILE1> ) {
+ /VALUES.*\(\'([\w-:]+)\'/;
+ $variable = lc $1;
+ $syspref1{$variable} = 1 unless $syspref1{$variable};
+}
+while ( <FILE2> ) {
+ /VALUES.*\(\'([\w-:]+)\'/;
+ $variable = lc $1;
+ $syspref2{$variable} = 1 unless $syspref2{$variable};
+}
+
+print "Variables present in $file1 but unavailable in $file2\n";
+for ( sort keys %syspref1 ) {
+ print $_, "\n" unless $syspref2{$_};
+}
+print "\nVariables present in $file2 but unavailable in $file2\n";
+for ( sort keys %syspref2 ) {
+ print $_, "\n" unless $syspref1{$_};
+}
+
+