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

params hdrs: proc ex: proc { have_header(“vm_core.h”) and have_header(“iseq.h”) } name: string (config name for makefile)



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# File 'lib/ruby_core_source.rb', line 18

def create_makefile_with_core(hdrs, name)
  #
  # First, see if the needed headers already exist somewhere
  #
  if hdrs.call
    create_makefile(name)
    return true
  end

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

.download_headers(hdrs, dest_dir = nil, just_headers = true, existing_pre_unpacked_dir = nil) ⇒ Object

returns the location of headers downloaded and extracted from source you can pass it a specific dest_dir if you don’t want it at the default location and can specify just_headers = false if you want all the source files to be downloaded there, not just *.inc



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# File 'lib/ruby_core_source.rb', line 45

def download_headers hdrs, dest_dir = nil, just_headers = true, existing_pre_unpacked_dir = nil

  ruby_dir = ""
  ruby_version = RUBY_VERSION[0..-3]
  if RUBY_VERSION >= '1.9'
    ruby_version = '1.8' # for the latest 1.8.7 patch, for now [see below]
  end

  if RUBY_PATCHLEVEL < 0
    # some type of svn checkout
    # try to use mark's lookup
    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

    version = RUBY_VERSION.to_s
    patch_level = RUBY_PATCHLEVEL.to_s
    if RUBY_VERSION >= '1.9'
      $stderr.puts 'WARNING: installing the 1.8.7 source, since ri doesn\'t work on 1.9 core source quite yet'
      version = '1.8.7'
      patch_level = '160'
    end
      
    ruby_dir = "ruby-" + version + "-p" + patch_level
  end


  #
  # Download the source headers
  #
  uri_path = "http://ftp.ruby-lang.org/pub/ruby/" + ruby_version + "/" + ruby_dir + ".tar.gz"
  Tempfile.open("ruby-src") { |temp|
    temp.binmode
    uri = URI.parse(uri_path)
    unless existing_pre_unpacked_dir
      uri.download(temp)
      tgz = Zlib::GzipReader.new(File.open(temp.path, 'rb'))
    end

    FileUtils.mkdir_p(dest_dir)
    require File.dirname(__FILE__) + "/dir_mktmpdir" unless Dir.respond_to? :mktmpdir
    Dir.mktmpdir { |dir|
      dir = existing_pre_unpacked_dir if existing_pre_unpacked_dir
      Archive::Tar::Minitar.unpack(tgz, dir) unless existing_pre_unpacked_dir
      if just_headers
        inc_dir = dir + "/" + ruby_dir + "/*.inc"
        hdr_dir = dir + "/" + ruby_dir + "/*.h"
        glob = [inc_dir, hdr_dir]
        FileUtils.cp(Dir.glob(glob), dest_dir)
      else
        FileUtils.cp_r(Dir.glob(dir + "/" + ruby_dir + "/*"), dest_dir)
      end
      
    }
  }
  dest_dir
end