File cpio_old_format.rb has 352 lines of code (exceeds 250 allowed). Consider refactoring.

Open

require 'stringio'

module CPIO
  class ArchiveFormatError < IOError; end

Class Archive has 27 methods (exceeds 20 allowed). Consider refactoring.

Open

  class Archive
    INVALID_MEMORY_MESSAGE =
      "invalid memory read at address=0x0000000000000000".freeze

    TYPES = { "cab" => Extractors::CabExtractor,

Method validate has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.

Open

  def validate
    raise "Invalid magic #{magic.inspect}" if magic != 0x070701
    raise "Invalid ino #{ino.inspect}" if ino < 0
    raise "Invalid mode #{mode.inspect}" if mode < 0
    raise "Invalid uid #{uid.inspect}" if uid < 0

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Method each has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.

Open

  def each(&block)
    while true
      entry = read
      break if entry.nil?
      # The CPIO format has the end-of-stream marker as a file called "TRAILER!!!"

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Method to_data has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

    def to_data
      Fields.collect do |(width,name)|
        raise ArchiveFormatError, "Expected header to have key #{name}" unless @attrs.has_key?(name)
        val = @attrs[name].respond_to?(:to_proc) ? @attrs[name].call : @attrs[name]
        raise ArchiveFormatError, "Header value for #{name} exceeds max length of #{FieldMaxValues[name]}" if val > FieldMaxValues[name]

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Method verify_correct_read has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.

Open

  def verify_correct_read(entry)
    # Read and throw away the whole file if not read at all.
    entry.file.tap do |file|
      if file.nil? ||  file.remaining == 0
        # All OK! :)

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Method extract_once has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.

Open

    def extract_once(archive, target)
      extension = normalized_extension(archive)
      extractor_class = TYPES[extension]
      unless extractor_class
        raise(UnknownArchiveError, "Could not unarchive `#{archive}`.")

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