Class: Skyfall::CarArchive

Inherits:
Object
  • Object
show all
Defined in:
lib/skyfall/car_archive.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ CarArchive

Returns a new instance of CarArchive.



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# File 'lib/skyfall/car_archive.rb', line 31

def initialize(data)
  @sections = []

  buffer = StringIO.new(data)
  read_header(buffer)
  read_section(buffer) until buffer.eof?
end

Instance Attribute Details

#roots ⇒ Object (readonly)

Returns the value of attribute roots.



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# File 'lib/skyfall/car_archive.rb', line 29

def roots
  @roots
end

#sections ⇒ Object (readonly)

Returns the value of attribute sections.



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# File 'lib/skyfall/car_archive.rb', line 29

def sections
  @sections
end

Class Method Details

.convert_data(object) ⇒ Object 



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# File 'lib/skyfall/car_archive.rb', line 44

def self.convert_data(object)
  if object.is_a?(Hash)
    object.each do |k, v|
      if v.is_a?(Hash) || v.is_a?(Array)
        convert_data(v)
      elsif v.is_a?(CBOR::Tagged)
        object[k] = make_cid_link(v)
      elsif v.is_a?(String) && v.encoding == Encoding::ASCII_8BIT
        object[k] = make_bytes(v)
      end
    end
  elsif object.is_a?(Array)
    object.each_with_index do |v, i|
      if v.is_a?(Hash) || v.is_a?(Array)
        convert_data(v)
      elsif v.is_a?(CBOR::Tagged)
        object[i] = make_cid_link(v)
      elsif v.is_a?(String) && v.encoding == Encoding::ASCII_8BIT
        object[i] = make_bytes(v)
      end
    end
  else
    raise DecodeError, "Unexpected value type in record: #{object}"
  end
end

.make_bytes(data) ⇒ Object 



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# File 'lib/skyfall/car_archive.rb', line 74

def self.make_bytes(data)
  { '$bytes' => Base64.encode64(data).chomp.gsub(/=+$/, '') }
end

.make_cid_link(cid) ⇒ Object 



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# File 'lib/skyfall/car_archive.rb', line 70

def self.make_cid_link(cid)
  { '$link' => CID.from_cbor_tag(cid) }
end

Instance Method Details

#section_with_cid(cid) ⇒ Object 



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# File 'lib/skyfall/car_archive.rb', line 39

def section_with_cid(cid)
  section = @sections.detect { |s| s.cid == cid }
  section && section.body
end