* split export type into filesystem and (optional) blockdevice, closing

  ticket#139
* code-reformatting with perltidy

git-svn-id: http://svn.openslx.org/svn/openslx/trunk@1176 95ad53e4-c205-0410-b2fa-d234c58c8868

1 files changed, 150 insertions, 0 deletions

diff --git a/installer/OpenSLX/OSExport/FileSystem/NFS.pm b/installer/OpenSLX/OSExport/FileSystem/NFS.pm
new file mode 100644
index 00000000..36926d61
--- /dev/null
+++ b/installer/OpenSLX/OSExport/FileSystem/NFS.pm
@@ -0,0 +1,150 @@
+# Copyright (c) 2006, 2007 - OpenSLX GmbH
+#
+# This program is free software distributed under the GPL version 2.
+# See http://openslx.org/COPYING
+#
+# If you have any feedback please consult http://openslx.org/feedback and
+# send your suggestions, praise, or complaints to feedback@openslx.org
+#
+# General information about OpenSLX can be found at http://openslx.org/
+# -----------------------------------------------------------------------------
+# NFS.pm
+#	- provides NFS-specific overrides of the OpenSLX::OSExport::FileSystem API.
+# -----------------------------------------------------------------------------
+package OpenSLX::OSExport::FileSystem::NFS;
+
+use vars qw($VERSION);
+use base qw(OpenSLX::OSExport::FileSystem::Base);
+$VERSION = 1.01;		# API-version . implementation-version
+
+use strict;
+use Carp;
+use File::Basename;
+use OpenSLX::Basics;
+use OpenSLX::ConfigDB qw(:support);
+use OpenSLX::Utils;
+use OpenSLX::OSExport::FileSystem::Base 1;
+
+################################################################################
+### interface methods
+################################################################################
+sub new
+{
+	my $class = shift;
+	my $self = {
+		'name' => 'nfs',
+	};
+	return bless $self, $class;
+}
+
+sub initialize
+{
+	my $self = shift;
+	my $engine = shift;
+
+	$self->{'engine'} = $engine;
+	my $exportBasePath = "$openslxConfig{'public-path'}/export";
+	$self->{'export-path'} = "$exportBasePath/nfs/$engine->{'vendor-os-name'}";
+}
+
+sub exportVendorOS
+{
+	my $self = shift;
+	my $source = shift;
+
+	my $target = $self->{'export-path'};
+	$self->_copyViaRsync($source, $target);
+}
+
+sub purgeExport
+{
+	my $self = shift;
+
+	my $target = $self->{'export-path'};
+	if (system("rm -r $target")) {
+		vlog(0, _tr("unable to remove export '%s'!", $target));
+		return 0;
+	}
+	return 1;
+}
+
+sub generateExportURI
+{
+	my $self = shift;
+	my $export = shift;
+	my $vendorOS = shift;
+
+	my $server
+		= length($export->{server_ip})
+			? $export->{server_ip}
+			: generatePlaceholderFor('serverip');
+	$server .= ":$export->{port}"		if length($export->{port});
+
+	my $exportPath = "$openslxConfig{'public-path'}/export";
+	return "nfs://$server/$exportPath/nfs/$vendorOS->{name}";
+}
+
+sub requiredFSMods
+{
+	my $self = shift;
+
+	return 'nfs';
+}
+
+sub showExportConfigInfo
+{
+	my $self = shift;
+	my $export = shift;
+
+	print (('#' x 80)."\n");
+	print _tr("Please make sure the following line is contained in /etc/exports\nin order to activate the NFS-export of this vendor-OS:\n\t%s\n",
+			  "$self->{engine}->{'export-path'}\t*(ro,no_root_squash,async,no_subtree_check)");
+	print (('#' x 80)."\n");
+
+# TODO : add something a bit more clever here...
+#	my $exports = slurpFile("/etc/exports");
+}
+
+################################################################################
+### implementation methods
+################################################################################
+sub _copyViaRsync
+{
+	my $self = shift;
+	my $source = shift;
+	my $target = shift;
+
+	if (system("mkdir -p $target")) {
+		die _tr("unable to create directory '%s', giving up! (%s)\n",
+				$target, $!);
+	}
+	my $includeExcludeList = $self->_determineIncludeExcludeList();
+	vlog(1, _tr("using include-exclude-filter:\n%s\n", $includeExcludeList));
+	open(RSYNC, "| rsync -av --delete --exclude-from=- $source/ $target")
+		or die _tr("unable to start rsync for source '%s', giving up! (%s)",
+				   $source, $!);
+	print RSYNC $includeExcludeList;
+	if (!close(RSYNC)) {
+		die _tr("unable to export to target '%s', giving up! (%s)",
+				$target, $!);
+	}
+}
+
+sub _determineIncludeExcludeList
+{
+	my $self = shift;
+
+	# Rsync uses a first match strategy, so we mix the local specifications
+	# in front of the filterset given by the package (as the local filters
+	# should always overrule the vendor filters):
+	my $distroName = $self->{engine}->{'distro-name'};
+	my $localFilterFile 
+		= "$openslxConfig{'config-path'}/distro-info/$distroName/export-filter";
+	my $includeExcludeList = slurpFile($localFilterFile, 1);
+	$includeExcludeList .= $self->{engine}->{distro}->{'export-filter'};
+	$includeExcludeList =~ s[^\s+][]igms;
+		# remove any leading whitespace, as rsync doesn't like it
+	return $includeExcludeList;
+}
+
+1;