adding the possibility of local file cache specify file://path_to_file_cache within localmirrors file to add new local file cache

SVN-Revision: 10617

scripts/download.pl

@@ -20,8 +20,8 @@ my @mirrors;
 my $ok;
 
 sub localmirrors {
-    my @mlist;
-    open LM, "$scriptdir/localmirrors" and do {
+	my @mlist;
+	open LM, "$scriptdir/localmirrors" and do {
 	    while (<LM>) {
 			chomp $_;
 			push @mlist, $_;
@@ -38,8 +38,7 @@ sub localmirrors {
 		close CONFIG;
 	};
 
-
-    return @mlist;
+	return @mlist;
 }
 
 sub which($) {
@@ -63,22 +62,31 @@ sub download
 	$options or $options = "";
 
 	$mirror =~ s/\/$//;
-	open WGET, "wget -t5 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
-	open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
-	open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
-	my $buffer;
-	while (read WGET, $buffer, 1048576) {
-		print MD5SUM $buffer;
-		print OUTPUT $buffer;
-	}
-	close MD5SUM;
-	close WGET;
-	close OUTPUT;
-	
-	if (($? >> 8) != 0 ) {
-		print STDERR "Download failed.\n";
-		cleanup();
-		return;
+	if( $mirror =~ /^file:\/\// ) {
+		my $cache = $mirror;
+		$cache =~ s/file:\/\///g;
+		print "Checking local cache: $cache\n";
+		system("mkdir -p $target/");
+		system("cp -f $cache/$filename $target/$filename.dl") == 0 or return;
+		system("$md5cmd $target/$filename.dl > \"$target/$filename.md5sum\" ") == 0 or return;
+	} else {
+		open WGET, "wget -t5 --timeout=20 $options -O- \"$mirror/$filename\" |" or die "Cannot launch wget.\n";
+		open MD5SUM, "| $md5cmd > \"$target/$filename.md5sum\"" or die "Cannot launch md5sum.\n";
+		open OUTPUT, "> $target/$filename.dl" or die "Cannot create file $target/$filename.dl: $!\n";
+		my $buffer;
+		while (read WGET, $buffer, 1048576) {
+			print MD5SUM $buffer;
+			print OUTPUT $buffer;
+		}
+		close MD5SUM;
+		close WGET;
+		close OUTPUT;
+
+		if (($? >> 8) != 0 ) {
+			print STDERR "Download failed.\n";
+			cleanup();
+			return;
+		}
 	}
 
 	my $sum = `cat "$target/$filename.md5sum"`;