diff -r 820b22e13ff1 -r 39c28ec933dd cross-plat-dev-utils/get_upstream.pl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cross-plat-dev-utils/get_upstream.pl	Mon May 10 19:54:49 2010 +0100
@@ -0,0 +1,57 @@
+#!/usr/bin/perl
+# Copyright (c) 2010 Symbian Foundation Ltd
+# This component and the accompanying materials are made available
+# under the terms of the License "Eclipse Public License v1.0"
+# which accompanies this distribution, and is available
+# at the URL "http://www.eclipse.org/legal/epl-v10.html".
+#
+# Initial Contributors:
+# Mike Kinghan, mikek@symbian.org for Symbian Foundation Ltd - initial contribution.
+
+# Script to clone the upstream package at the baseline revision.
+
+use strict;
+use Cwd;
+use get_baseline;
+use File::Spec;
+
+if (!@ARGV or @ARGV > 1 or grep(/$ARGV[0]/,("-h","--help"))) {
+    print "This script clones or updates the upstream package at the baseline revision " .
+		"from http://developer.symbian.org/oss/MCL/sftools/dev/build\n";
+    print "Valid arguments are -h, --help, or CLONEDIR, where CLONEDIR is the" .
+		" name of the existing directory into which the upstream package will " .
+		"be cloned if this does not seem to have been already done Otherwise " .
+		"CLONEDIR/build will be updated.\n";
+	exit 0;
+}         
+my $clonedir = $ARGV[0];
+unless ( -d "$clonedir") {
+	die "*** Error: directory \"$clonedir\" does not exist ***";
+}
+my $baseline_rev = get_baseline();
+print ">>> Baseline revision is $baseline_rev\n"; 
+my $cwd = cwd;
+my $cmd;
+chdir $clonedir or die $!;
+print ">>> Changed to dir \"$clonedir\"\n";
+my $hg_dir = File::Spec->catfile("build",".hg");
+if ( -d $hg_dir) {
+	print ">>> There seems to a repo of the build package in \"$clonedir\"\n";
+	print ">>> Will try to update it\n";
+	chdir "build" or die $!;
+	print ">>> Changed to dir \"build\"\n";
+	$cmd = "hg update -c -r $baseline_rev ";
+
+}
+else {
+	print ">>> There is no existing repo in \"$clonedir\"\n";
+	print ">>> Will clone fresh\n";
+ 	$cmd = "hg clone -r $baseline_rev " .
+	"http://developer.symbian.org/oss/MCL/sftools/dev/build";
+} 
+print ">>> Executing: $cmd\n";
+my $rc = system($cmd) >> 8;
+chdir $cwd or die $!;
+print ">>> Changed to dir \"$cwd\"\n";
+exit $rc;
+