Class: VMMount

Inherits:
Object
  • Object
show all
Defined in:
lib/metadata/VMMount/VMMount.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, ost = nil) ⇒ VMMount

Returns a new instance of VMMount.



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# File 'lib/metadata/VMMount/VMMount.rb', line 10

def initialize(filename, ost = nil)
  $log.debug "Initializing VMMount, filename: #{filename}" if $log
  @mountDrive = nil
  @diskInfo = OpenStruct.new
  @ost = OpenStruct.new unless ost
  @disk = nil
  @fs = nil

  # Use the MIQ functions to load virtual disk image
  # Check if there is a flat file and redirect to the proper name
  # TODO: This function should be improved to open the current file and check for the
  #       redirection.  Right now it just looks for the expected flat filename.
  $log.debug "vmmount called for disk image: [#{filename}]"
  @diskInfo.fileName = getMountFile(filename)

  @platMount = VMPlatformMount.new(@diskInfo, @ost)
  @platMount.preMount
  begin
    @disk = MiqDisk.getDisk(@diskInfo)
    raise "Failed to open disk: #{@diskInfo.fileName}" if @disk.nil?

    @parts = @disk.getPartitions
    raise "No Partitions found on disk: #{@diskInfo.fileName}" if @parts.nil?

    $log.debug "VMMount mounting partitions of #{filename}" if $log
    @parts.each do |p|
      fsPartitions = MiqFS.getFS(p)
      unless fsPartitions.nil?
        # Always set the fs pointer to the first partition so we return something.
        @fs = fsPartitions if @fs.nil?

        # If the systemRoot does not throw an error then we found it
        # and should return this fs.  Otherwise, continue looking.
        begin
          Win32::SystemPath.systemRoot(fsPartitions)
          @fs = fsPartitions
          break
        rescue
          # $log.warn "No Windows partition here."
        end
      end
    end
    $log.debug "vmmount complete for: [#{filename}]"
  rescue => err
    @platMount.postMount
    raise err
  end
end

Instance Attribute Details

#disk ⇒ Object (readonly)

Returns the value of attribute disk.



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# File 'lib/metadata/VMMount/VMMount.rb', line 8

def disk
  @disk
end

Instance Method Details

#getMountDrive ⇒ Object 



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# File 'lib/metadata/VMMount/VMMount.rb', line 72

def getMountDrive
  return @fs if @fs
  @mountDrive
end

#getMountFile(fn) ⇒ Object 



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# File 'lib/metadata/VMMount/VMMount.rb', line 59

def getMountFile(fn)
  file_miq = File.join(File.dirname(fn), File.basename(fn, ".*") + ".miq")
  return file_miq if File.exist?(file_miq)
  fn
end

#mounted? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/metadata/VMMount/VMMount.rb', line 77

def mounted?
  return true unless getMountDrive.nil?
  false
end

#unMountImage ⇒ Object 



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# File 'lib/metadata/VMMount/VMMount.rb', line 65

def unMountImage
  if @disk
    @disk.close
    @platMount.postMount
  end
end