module Ruby_core_source

# File lib/ruby_core_source.rb, line 13
def create_makefile_with_core(hdrs, name)

  #
  # First, see if the gem already has the needed headers
  #
  if hdrs.call
    create_makefile(name)
    return true
  end

  ruby_dir = ""
  if RUBY_PATCHLEVEL < 0
    Tempfile.open("preview-revision") { |temp|
      uri = URI.parse("http://cloud.github.com/downloads/mark-moseley/ruby_core_source/preview_revision.yml")
      uri.download(temp)
      revision_map = YAML::load(File.open(temp.path))
      ruby_dir = revision_map[RUBY_REVISION]
      return false if ruby_dir.nil?
    }
  else
    ruby_dir = "ruby-" + RUBY_VERSION.to_s + "-p" + RUBY_PATCHLEVEL.to_s
  end

  #
  # Check if core headers were already downloaded; if so, use them
  #
  dest_dir = Config::CONFIG["rubyhdrdir"] + "/" + ruby_dir
  with_cppflags("-I" + dest_dir) {
    if hdrs.call
      create_makefile(name)
      return true
    end
  }

  #
  # Download the headers
  #
  uri_path = "http://ftp.ruby-lang.org/pub/ruby/1.9/" + ruby_dir + ".tar.gz"
  Tempfile.open("ruby-src") { |temp|

    temp.binmode
    uri = URI.parse(uri_path)
    uri.download(temp)

    tgz = Zlib::GzipReader.new(File.open(temp, "rb"))

    FileUtils.mkdir_p(dest_dir)
    Dir.mktmpdir { |dir|
      inc_dir = dir + "/" + ruby_dir + "/*.inc"
      hdr_dir = dir + "/" + ruby_dir + "/*.h"
      Archive::Tar::Minitar.unpack(tgz, dir)
      FileUtils.cp(Dir.glob([ inc_dir, hdr_dir ]), dest_dir)
    }
  }

  with_cppflags("-I" + dest_dir) {
    if hdrs.call
      create_makefile(name)
      return true
    end
  }
  return false
end

# File lib/ruby_core_source.rb, line 13
def create_makefile_with_core(hdrs, name)

  #
  # First, see if the gem already has the needed headers
  #
  if hdrs.call
    create_makefile(name)
    return true
  end

  ruby_dir = ""
  if RUBY_PATCHLEVEL < 0
    Tempfile.open("preview-revision") { |temp|
      uri = URI.parse("http://cloud.github.com/downloads/mark-moseley/ruby_core_source/preview_revision.yml")
      uri.download(temp)
      revision_map = YAML::load(File.open(temp.path))
      ruby_dir = revision_map[RUBY_REVISION]
      return false if ruby_dir.nil?
    }
  else
    ruby_dir = "ruby-" + RUBY_VERSION.to_s + "-p" + RUBY_PATCHLEVEL.to_s
  end

  #
  # Check if core headers were already downloaded; if so, use them
  #
  dest_dir = Config::CONFIG["rubyhdrdir"] + "/" + ruby_dir
  with_cppflags("-I" + dest_dir) {
    if hdrs.call
      create_makefile(name)
      return true
    end
  }

  #
  # Download the headers
  #
  uri_path = "http://ftp.ruby-lang.org/pub/ruby/1.9/" + ruby_dir + ".tar.gz"
  Tempfile.open("ruby-src") { |temp|

    temp.binmode
    uri = URI.parse(uri_path)
    uri.download(temp)

    tgz = Zlib::GzipReader.new(File.open(temp, "rb"))

    FileUtils.mkdir_p(dest_dir)
    Dir.mktmpdir { |dir|
      inc_dir = dir + "/" + ruby_dir + "/*.inc"
      hdr_dir = dir + "/" + ruby_dir + "/*.h"
      Archive::Tar::Minitar.unpack(tgz, dir)
      FileUtils.cp(Dir.glob([ inc_dir, hdr_dir ]), dest_dir)
    }
  }

  with_cppflags("-I" + dest_dir) {
    if hdrs.call
      create_makefile(name)
      return true
    end
  }
  return false
end