def manifest
    if File.exists?(manifest_file) && File.readable?(manifest_file) then
      MultiJson.load(File.read(manifest_file))
    else
      {}
    end
  end
def manifest
    if File.exists?(manifest_file) && File.readable?(manifest_file) then
      MultiJson.load(File.read(manifest_file))
    else
      {}
    end
  end
def manifest if File . exists? ( manifest_file ) && File . readable? ( manifest_file ) then MultiJson . load ( File . read ( manifest_file ) ) else { } end end
Retrieve the command's Manifest, loading it from disk if necessary
 If no Manifest is available, returns an empty hash

 @return [Hash]
Retrieve the command s Manifest loading it from disk if necessary If no Manifest is available returns an empty hash