Module: Ruby_core_source

Defined in:
lib/ruby_core_source.rb

Class Method Summary collapse

Class Method Details

.create_makefile_with_core(hdrs, name) ⇒ Object 



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# File 'lib/ruby_core_source.rb', line 12

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 = ""
  svn_version = nil
  if RUBY_PATCHLEVEL < 0 # -1 means from trunk
    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]
      if ruby_dir.nil?
        if RUBY_DESCRIPTION =~ /dev.*trunk (\d+)/
          #svn_version = 'svn-r' + $1 # TODO rdp
          svn_version = $1
        else
          return false
        end
      end
    }
  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 || svn_version )
  puts dest_dir
  with_cppflags("-I" + dest_dir) {
    if hdrs.call
      create_makefile(name)
      return true
    end
  }


  #
  # Download the headers
  #
  Tempfile.open("ruby-src") { |temp|

    if !svn_version
      # download it
      uri_path = "http://ftp.ruby-lang.org/pub/ruby/1.9/" + ruby_dir + ".tar.gz"
      temp.binmode
      uri = URI.parse(uri_path)
      uri.download(temp) # download it to temp
      tgz = Zlib::GzipReader.new(File.open(temp, "rb"))
    else
      ruby_dir = svn_version
    end

    FileUtils.mkdir_p(dest_dir)
    Dir.mktmpdir { |dir|
      inc_dir = dir + "/" + ruby_dir + "/*.inc"
      hdr_dir = dir + "/" + ruby_dir + "/*.h"
      if svn_version
        Dir.rmdir dir
        # recreate it
        svn_dir = dir + '/' + svn_version
        system("svn co -r#{svn_version} http://svn.ruby-lang.org/repos/ruby/trunk #{svn_dir}")
        Dir.chdir(svn_dir) do
          # create id.h (needed and must be created for some reason)
          system("sh -c 'autoconf'")
          system("sh -c './configure --disable-doc'")
          system("sh -c 'make'") # todo only build version.h id.h
        end
      else
        Archive::Tar::Minitar.unpack(tgz, dir)
      end
      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