1 files changed, 148 insertions, 0 deletions
diff --git a/src/installer/OpenSLX/OSExport/FileSystem/Base.pm b/src/installer/OpenSLX/OSExport/FileSystem/Base.pm
new file mode 100644
index 00000000..05f3c6a0
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+++ b/src/installer/OpenSLX/OSExport/FileSystem/Base.pm
@@ -0,0 +1,148 @@
+# 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/
+# -----------------------------------------------------------------------------
+# Base.pm
+#    - provides empty base of the OpenSLX OSExport::FileSystem API.
+# -----------------------------------------------------------------------------
+package OpenSLX::OSExport::FileSystem::Base;
+
+use strict;
+use warnings;
+
+our $VERSION = 1.01;        # API-version . implementation-version
+
+use File::Basename;
+use Scalar::Util qw( weaken );
+
+use OpenSLX::Basics;
+use OpenSLX::Utils;
+
+################################################################################
+### interface methods
+################################################################################
+sub new
+{
+    confess "Creating OpenSLX::OSExport::FileSystem::Base-objects directly makes no sense!";
+}
+
+sub initialize
+{
+    my $self = shift;
+    my $engine = shift;
+
+    $self->{'engine'} = $engine;
+    weaken($self->{'engine'});
+        # avoid circular reference between file-system and its engine
+}
+
+sub exportVendorOS
+{
+}
+
+sub purgeExport
+{
+}
+
+sub checkRequirements
+{
+    return 1;
+}
+
+sub addExportToConfigDB
+{
+    my $self = shift;
+    my $export = shift;
+    my $openslxDB = shift;
+
+    return $openslxDB->addExport($export);
+}
+
+sub generateExportURI
+{
+}
+
+sub requiredFSMods
+{
+}
+
+sub requiredFSTools
+{
+}
+
+sub showExportConfigInfo
+{
+}
+
+################################################################################
+### implementation methods
+################################################################################
+sub _pickKernelVersion
+{
+    my $self         = shift;
+    my $vendorOSPath = shift;
+    
+    my $kernel = followLink("$vendorOSPath/boot/vmlinuz");
+    if (!-e $kernel) {
+        # 'vmlinuz'-link doesn't exist, so we have to pick the kernel manually
+        my $osSetupEngine = instantiateClass("OpenSLX::OSSetup::Engine");
+        $osSetupEngine->initialize($self->{engine}->{'vendor-os-name'}, 'none');
+        $kernel = $osSetupEngine->pickKernelFile("$vendorOSPath/boot");
+    }
+    my $kernelName = basename($kernel);
+    if ($kernelName !~ m[-(.+)$]) {
+        die _tr("unable to determine version of kernel '%s'!", $kernelName);
+    }
+    return $1;
+}
+
+sub _locateKernelModule
+{
+    my $self         = shift;
+    my $vendorOSPath = shift;
+    my $moduleName   = shift;
+    my $defaultPaths = shift;
+
+    vlog(1, _tr("locating kernel-module '%s'", $moduleName));
+    # check default paths first:
+    foreach my $defPath (@$defaultPaths) {
+        vlog(2, "trying $defPath/$moduleName");
+        my $target = followLink("$defPath/$moduleName", $vendorOSPath);
+        return $target unless !-e $target;
+    }
+    # use brute force to search for the newest incarnation of the module:
+    use File::Find;
+    my $location;
+    my $locationAge = 9999999;
+    vlog(2, "searching in $vendorOSPath/lib/modules");
+    find sub {
+        return unless $_ eq $moduleName;
+        if (-M _ < $locationAge) {
+            $locationAge = -M _;
+            $location    = $File::Find::name;
+            vlog(2, "located at $location (age=$locationAge days)");
+        }
+    }, "$vendorOSPath/lib/modules";
+    if (defined $location) {
+        return followLink($location, $vendorOSPath);
+    }
+    return;
+}
+
+1;
+
+################################################################################
+
+=pod
+
+=head1 NAME
+
+OpenSLX::OSExport::FileSystem::Base - the base class for all OSExport::FileSystems
+
+=cut