Beginning export/type format changes.

History.txt

@@ -1,3 +1,11 @@
+== MIME::Types 2.0
+* Actually plugged in the data_version for the MIME::Types list.
+* Added a build-time mechanism to export the data to separate files, mostly as
+  a tool to design the new data format, but it will also be an excellent tool
+  for being able to update the data moving forward.
+* PLANNED: Make it so that the data files are not "executable" code.
+* PLANNED: Move the import mechanism to a method or methods on the Types class.
+
 == MIME::Types 1.16
 * Made compatible with Ruby 1.8.6, 1.8.7, and 1.9.1.
 * Switched to the 'hoe' gem system and added a lot of build-time tools.

Rakefile

@@ -135,6 +135,28 @@ task :build_manifest do |t|
   puts paths
 end
 
+desc "Validate the RubyGem spec for GitHub."
+task :github_validate_spec do |t|
+  require 'yaml'
+
+  require 'rubygems/specification'
+  data = File.read("#{PKG_NAME}.gemspec")
+  spec = nil
+
+  if data !~ %r{!ruby/object:Gem::Specification}
+    code = "$SAFE = 3\n#{data}"
+    p code.split($/)[44]
+    Thread.new { spec = eval("$SAFE = 3\n#{data}") }.join
+  else
+    spec = YAML.load(data)
+  end
+
+  spec.validate
+
+  puts spec
+  puts "OK"
+end
+
 desc "Download the current MIME type registrations from IANA."
 task :iana, :save, :destination do |t, args|
   save_type = args.save || :text
@@ -293,24 +315,65 @@ http://www.iana.org/assignments/media-types/
   EOS
 end
 
-desc "Validate the RubyGem spec for GitHub."
-task :github_validate_spec do |t|
-  require 'yaml'
+desc "Exports the current MIME types to files."
+task :export_types, :destination do |t, args|
+  destination = args.destination || "type-lists"
 
-  require 'rubygems/specification'
-  data = File.read("#{PKG_NAME}.gemspec")
-  spec = nil
+  class << MIME::Types
+    def internal
+      @__types__
+    end
+  end
+  class MIME::Types
+    def variants
+      @type_variants
+    end
 
-  if data !~ %r{!ruby/object:Gem::Specification}
-    code = "$SAFE = 3\n#{data}"
-    p code.split($/)[44]
-    Thread.new { spec = eval("$SAFE = 3\n#{data}") }.join
-  else
-    spec = YAML.load(data)
+    def extensions
+      @extension_index
+    end
   end
 
-  spec.validate
+  internal = MIME::Types.internal
 
-  puts spec
-  puts "OK"
+  arr_hash = lambda { |h, k| h[k] = [] }
+
+  mime_types = Hash.new &arr_hash
+
+  internal.variants.keys.sort.each do |key|
+    internal.variants[key].each do |variant|
+      mime_types[variant.raw_media_type] << variant
+    end
+  end
+
+  ref = Hash.new &arr_hash
+  ext = Hash.new &arr_hash
+  enc = Hash.new &arr_hash
+  use = Hash.new &arr_hash
+  doc = Hash.new &arr_hash
+  url = Hash.new &arr_hash
+
+  mime_types.each do |media, types|
+    types.each do |type|
+      refline = [ type.content_type ]
+      refline << "OBSOLETE" if type.obsolete?
+      refline << "UNREGISTERED" unless type.registered?
+      refline << "REF:#{type.url.join(',')}" unless type.url.nil? or type.url.empty?
+      ref[media] << refline.join(" ")
+    end
+  end
+
+  require 'fileutils'
+  FileUtils.mkdir_p destination
+  Dir.chdir destination do
+    ref.each do |media, types|
+      File.open("#{media}.ref.text", "wb") do |f|
+        types.each do |type|
+          f.puts type
+        end
+      end
+    end
+  end
+
+# p mime_types.size, mime_types.keys.sort.map { |e| [e, mime_types[e].size] }
 end

lib/mime-types.rb

@@ -0,0 +1,14 @@
+# vim: ft=ruby encoding=utf-8
+#--
+# MIME::Types
+# A Ruby implementation of a MIME Types information library. Based in spirit
+# on the Perl MIME::Types information library by Mark Overmeer.
+# http://rubyforge.org/projects/mime-types/
+#
+# Licensed under the Ruby disjunctive licence with the GNU GPL or the Perl
+# Artistic licence. See Licence.txt for more information.
+#
+# Copyright 2003 - 2009 Austin Ziegler
+#++
+
+require 'mime/types'

lib/mime/types.rb

@@ -596,6 +596,7 @@ module MIME
     def initialize(data_version = nil)
       @type_variants    = Hash.new { |h, k| h[k] = [] }
       @extension_index  = Hash.new { |h, k| h[k] = [] }
+      @data_version     = data_version
     end
 
     def add_type_variant(mime_type) #:nodoc: