Module: Uprb::RequireReplacer

Defined in:
lib/uprb/require_replacer.rb

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.mapping ⇒ Object (readonly)

Returns the value of attribute mapping.



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# File 'lib/uprb/require_replacer.rb', line 10

def mapping
  @mapping
end

Class Method Details

.pack(source_path, dest_path: nil, requires: [], dynamic: false, script_argv: [], skip_disable_gems: false, skip_ruby_path_replace: false) ⇒ Object 



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# File 'lib/uprb/require_replacer.rb', line 12

def pack(source_path, dest_path: nil, requires: [], dynamic: false, script_argv: [], skip_disable_gems: false, skip_ruby_path_replace: false)
  source = File.read(source_path)
  mapping = build_mapping(source_path, requires, dynamic, script_argv)
  embedded, external = build_payload(mapping)
  ruby_source = source_with_require_hook(source, requires)
  main_iseq = RubyVM::InstructionSequence.compile(ruby_source, source_path, source_path)
  payload = Marshal.dump({
    embedded: embedded,
    external: external,
    main: main_iseq.to_binary
  })

  shebang = resolve_shebang(source, skip_ruby_path_replace: skip_ruby_path_replace, skip_disable_gems: skip_disable_gems)
  body = <<~RUBY
    DATA.binmode
    data = Marshal.load(DATA)

    EMBEDDED_ISEQ = data.fetch(:embedded)
    REQUIRE_MAP = data.fetch(:external)

    iseq = RubyVM::InstructionSequence.load_from_binary(data.fetch(:main))
    iseq.eval
    __END__
  RUBY

  if shebang
    program = "#{shebang}\n#{body}#{payload}"
    return program unless dest_path
    File.write(dest_path, program)
    FileUtils.chmod("+x", dest_path)
  else
    program = body + payload
    return program unless dest_path
    File.write(dest_path, program)
  end
end