* next refactoring step: made MakeInitRamFS part of boot environment

git-svn-id: http://svn.openslx.org/svn/openslx/openslx/trunk@2167 95ad53e4-c205-0410-b2fa-d234c58c8868

1 files changed, 249 insertions, 0 deletions

diff --git a/boot-env/OpenSLX/MakeInitRamFS/Engine/SlxBoot.pm b/boot-env/OpenSLX/MakeInitRamFS/Engine/SlxBoot.pm
new file mode 100644
index 00000000..a10384b8
--- /dev/null
+++ b/boot-env/OpenSLX/MakeInitRamFS/Engine/SlxBoot.pm
@@ -0,0 +1,249 @@
+# Copyright (c) 2006-2008 - 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/
+# -----------------------------------------------------------------------------
+# MakeInitialRamFS::Engine::SlxBoot.pm
+#    - provides driver engine for MakeInitialRamFS API, implementing the
+#      standard slx boot behaviour (i.e. booting a system remotely).
+# -----------------------------------------------------------------------------
+package OpenSLX::MakeInitRamFS::Engine::SlxBoot;
+
+use strict;
+use warnings;
+
+use base qw(OpenSLX::MakeInitRamFS::Engine::Base);
+
+use File::Basename;
+use File::Find;
+use File::Path;
+use POSIX qw(strftime);
+
+use OpenSLX::Basics;
+use OpenSLX::Utils;
+
+################################################################################
+### implementation methods
+################################################################################
+sub _collectCMDs
+{
+    my $self = shift;
+    
+    $self->{CMDs} = [];
+
+    $self->_setupBuildPath();
+
+    $self->_addRequiredFSMods();
+    
+    $self->_writeInitramfsSetup();
+    $self->_writeSlxSystemConf();
+
+    $self->_copyUclibcRootfs();
+    $self->_copyHwinfo();
+    $self->_copyDistroSpecificFiles();
+    $self->_copyInitramfsFiles();
+    
+    $self->_copyPreAndPostinitFiles();
+
+    $self->_calloutToPlugins();
+
+    $self->{distro}->applyChanges($self);
+
+    $self->_copyKernelModules();
+    
+    $self->_createInitRamFS();
+
+    return;
+}
+
+sub _setupBuildPath
+{
+    my $self = shift;
+    
+    my $buildPath = "$openslxConfig{'temp-path'}/slx-initramfs";
+    $self->addCMD("rm -rf $buildPath");
+
+    my @stdFolders = qw(
+        bin 
+        dev 
+        etc
+        etc/init-hooks
+        lib
+        mnt 
+        proc 
+        root 
+        sys 
+        tmp 
+        usr/share
+        var/lib
+        var/lib/nfs/state
+        var/run
+    );
+    $self->addCMD(
+        'mkdir -p ' . join(' ', map { "$buildPath/$_"; } @stdFolders)
+    );
+    $self->addCMD("ln -sfn /bin $buildPath/sbin");
+    
+    $self->{'build-path'} = $buildPath;
+    
+    return;
+}
+    
+sub _copyDistroSpecificFiles
+{
+    my $self = shift;
+
+    my $distroSpecsPath = "$openslxConfig{'base-path'}/share/distro-specs";
+
+    my $distroName = $self->{'distro-name'};
+    my $distroVer = $self->{'distro-ver'};
+    
+    # concatenate default- and distro-specific functions into one file
+    my $functions = slurpFile("$distroSpecsPath/$distroName/functions-default");
+    $functions .= "\n";
+    $functions .= slurpFile(
+        "$distroSpecsPath/$distroName/functions-$distroVer",
+        { failIfMissing => 0 }
+    );
+    $self->addCMD( {
+        file    => "$self->{'build-path'}/etc/distro-functions",
+        content => $functions,
+    } );
+    
+    return 1;
+}
+
+sub _copyUclibcRootfs
+{
+    my $self = shift;
+
+    my $uclibcRootfs = "$openslxConfig{'base-path'}/share/uclib-rootfs";
+
+    $self->addCMD("rsync -rlpt $uclibcRootfs/ $self->{'build-path'}");
+    
+    return 1;
+}
+
+sub _copyHwinfo
+{
+    my $self = shift;
+
+    my $baseDir = "$openslxConfig{'base-path'}/share/ramfstools/hwinfo";
+
+    my $version = $self->{distro}->determineMatchingHwinfoVersion(
+        $self->{'distro-ver'}
+    );
+
+    $self->addCMD("cp $baseDir/bin/hwinfo-$version $self->{'build-path'}/usr/bin/hwinfo");
+    my $libHD = "libhd.so.$version";
+    $self->addCMD("cp $baseDir/lib/$libHD $self->{'build-path'}/usr/lib");
+    my $libName = $libHD;
+    while($libName =~ s{\.\d+$}{}g) {
+        $self->addCMD("ln -sf $libHD $self->{'build-path'}/usr/lib/$libName");
+    }
+    
+    return 1;
+}
+
+sub _copyInitramfsFiles
+{
+    my $self = shift;
+
+    my $initramfsPath = "$openslxConfig{'base-path'}/share/initramfs";
+
+    find(
+        {
+            wanted => sub {
+                my $len = length($initramfsPath);
+                my $file = $File::Find::name;
+                my $relName = length($file) > $len ? substr($file, $len+1) : '';
+                if (-d) {
+                    $self->addCMD("mkdir -p $self->{'build-path'}/$relName");
+                } elsif (-l $file) {
+                    my $target = readlink $file;
+                    $self->addCMD(
+                        "ln -sf $target $self->{'build-path'}/$relName"
+                    );
+                } elsif (qx{file $file} =~ m{ELF}) {
+                    $self->addCMD(
+                        "cp -p $file $self->{'build-path'}/$relName"
+                    );
+                } else {
+                    my $text = slurpFile($file, { 'io-layer' => 'bytes' } );
+
+                    # replace macros
+                    # TODO: find out what these mean and maybe find a
+                    #       different, better solution
+                    my %macro = (
+                        'COMDIRINDXS' => '/tmp/scratch /var/lib/nobody',
+                        # keep serverip as it is (it is handled by init itself)
+                        'serverip'    => '@@@serverip@@@',
+                    );
+                    $text =~ s{\@\@\@([^\@]+)\@\@\@}{
+                        if (!exists $macro{$1}) {
+                            warn _tr(
+                                'unknown macro @@@%s@@@ found in %s', 
+                                $1, $File::Find::name
+                            );
+                            '';
+                        } else {
+                            $macro{$1};
+                        }
+                    }eogms;
+                    
+                    # force shebang with ash
+                    $text =~ s{\A#!\s*/bin/.+?$}{#!/bin/ash}ms;
+                    
+                    $self->addCMD( {
+                        file    => "$self->{'build-path'}/$relName",
+                        content => $text,
+                        mode    => (-x $file ? 0755 : undef),
+                    } );
+                }
+            },
+            no_chdir => 1,
+        },
+        $initramfsPath
+    );
+
+    return;
+}
+
+sub _copyPreAndPostinitFiles
+{
+    my $self = shift;
+
+    foreach my $cfg (
+        'default/initramfs/preinit.local',
+        "$self->{'system-name'}/initramfs/preinit.local",
+        'default/initramfs/postinit.local',
+        "$self->{'system-name'}/initramfs/postinit.local"
+    ) {
+        my $cfgPath = "$openslxConfig{'private-path'}/config/$cfg";
+        next if !-f $cfgPath;
+        $self->addCMD("cp -p $cfgPath $self->{'build-path'}/bin/");
+    }
+    return;
+}
+
+sub _addRequiredFSMods
+{
+    my $self = shift;
+    
+    my $osExportEngine = instantiateClass("OpenSLX::OSExport::Engine");
+    $osExportEngine->initializeFromExisting($self->{'export-name'});
+    my $fsMods = $self->{attrs}->{ramfs_fsmods} || '';
+    foreach my $fsMod ($osExportEngine->requiredFSMods()) {
+        $fsMods .= " $fsMod" if $fsMods !~ m{$fsMod};
+    }
+    $self->{attrs}->{ramfs_fsmods} = $fsMods;
+    
+    return;
+}
+
+1;