From 28ff1e4fa1855bbedf5fd9ea9e44eb74ae32ccfc Mon Sep 17 00:00:00 2001
From: Oliver Tappe
Date: Fri, 20 Jul 2007 17:08:15 +0000
Subject: * added support for automatic selection of most appropriate (newest)
 kernel   if the kernel file specified by DB (in most cases: vmlinuz) does not
 exist.   A warning will be printed by slxconfig-demuxer if the kernel had to
 be   picked this way.

This should allow slxconfig-demuxer to work for ubuntu & debian, as those
do not always provide a vmlinuz-link (and in general this change makes
the system more robust).

git-svn-id: http://svn.openslx.org/svn/openslx/trunk@1265 95ad53e4-c205-0410-b2fa-d234c58c8868
---
 installer/OpenSLX/OSSetup/Distro/Base.pm | 25 +++++++++++++++++++++++++
 installer/OpenSLX/OSSetup/Engine.pm      |  7 +++++++
 2 files changed, 32 insertions(+)

(limited to 'installer')

diff --git a/installer/OpenSLX/OSSetup/Distro/Base.pm b/installer/OpenSLX/OSSetup/Distro/Base.pm
index 09323b52..9b59a828 100644
--- a/installer/OpenSLX/OSSetup/Distro/Base.pm
+++ b/installer/OpenSLX/OSSetup/Distro/Base.pm
@@ -134,6 +134,31 @@ sub finishSession
 {
 }
 
+sub pickKernelFile
+{
+	my $self       = shift;
+	my $kernelPath = shift;
+
+	my $newestKernelFile;
+	my $newestKernelFileSortKey = '';
+	foreach my $kernelFile (glob("$kernelPath/vmlinuz-*")) {
+		next unless $kernelFile =~ m{
+			vmlinuz-(\d+)\.(\d+)\.(\d+)(?:\.(\d+))?-(\d+(?:\.\d+)?)
+		}x;
+		my $sortKey 
+			= sprintf("%02d.%02d.%02d.%02d-%2.1f", $1, $2, $3, $4||0, $5);
+		if ($newestKernelFileSortKey lt $sortKey) {
+			$newestKernelFile        = $kernelFile;
+			$newestKernelFileSortKey = $sortKey;
+		}
+	}
+
+	if (!defined $newestKernelFile) {
+		die _tr("unable to pick a kernel-file from path '%s'!", $kernelPath);
+	}
+	return $newestKernelFile;
+}
+
 1;
 ################################################################################
 
diff --git a/installer/OpenSLX/OSSetup/Engine.pm b/installer/OpenSLX/OSSetup/Engine.pm
index 5737814b..233ba33c 100644
--- a/installer/OpenSLX/OSSetup/Engine.pm
+++ b/installer/OpenSLX/OSSetup/Engine.pm
@@ -596,6 +596,13 @@ sub removeVendorOSFromConfigDB
 	return;
 }
 
+sub pickKernelFile
+{
+	my $self = shift;
+
+	return $self->{distro}->pickKernelFile(@_);
+}
+
 ################################################################################
 ### implementation methods
 ################################################################################
-- 
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