Class: Gel::GemspecParser

Inherits:
Object
  • Object
show all
Defined in:
lib/gel/gemspec_parser.rb

Defined Under Namespace

Modules: Context Classes: Result

Class Method Summary collapse

Class Method Details

.parse(content, filename, lineno = 1, root: File.dirname(filename), isolate: true) ⇒ Object 



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# File 'lib/gel/gemspec_parser.rb', line 55

def self.parse(content, filename, lineno = 1, root: File.dirname(filename), isolate: true)
  filename = File.expand_path(filename)
  root = File.expand_path(root)

  if isolate
    in_read, in_write = IO.pipe
    out_read, out_write = IO.pipe

    pid = spawn({ "RUBYLIB" => Gel::Environment.modified_rubylib, "GEL_GEMFILE" => "", "GEL_LOCKFILE" => "" },
                RbConfig.ruby,
                "-r", File.expand_path("compatibility", __dir__),
                "-r", File.expand_path("gemspec_parser", __dir__),
                "-e", "puts Marshal.dump(Gel::GemspecParser.parse($stdin.read, ARGV.shift, ARGV.shift.to_i, root: ARGV.shift, isolate: false))",
                filename, lineno.to_s, root,
                in: in_read, out: out_write)

    in_read.close
    out_write.close

    write_thread = Thread.new do
      in_write.write content
      in_write.close
    end

    read_thread = Thread.new do
      out_read.read
    end

    _, status = Process.waitpid2(pid)
    raise Gel::Error::ParsedGemspecError unless status.success?

    write_thread.join
    Marshal.load read_thread.value

  else
    Dir.chdir(root) do
      Context.context.eval(content, filename, lineno)
    end
  end
end