Remove dependency on permutation

Ruby can do this by now on her own.

Author: flori

Rakefile

@@ -87,7 +87,6 @@ if defined?(Gem) and defined?(Gem::PackageTask)
     s.files = PKG_FILES
 
     s.require_path = 'lib'
-    s.add_development_dependency 'permutation'
     s.add_development_dependency 'sdoc', '~>0.3.16'
     s.add_development_dependency 'rake', '~>0.9.2'
 
@@ -125,7 +124,6 @@ if defined?(Gem) and defined?(Gem::PackageTask)
     s.extensions = FileList['ext/**/extconf.rb']
 
     s.require_path = 'lib'
-    s.add_development_dependency 'permutation'
     s.add_development_dependency 'sdoc', '~>0.3.16'
 
     s.extra_rdoc_files << 'README.rdoc'
@@ -173,8 +171,12 @@ EOT
   end
 end
 
+task :check_env do
+  ENV.key?('JSON') or fail "JSON env var is required"
+end
+
 desc "Testing library (pure ruby)"
-task :test_pure => [ :clean, :do_test_pure ]
+task :test_pure => [ :clean, :check_env, :do_test_pure ]
 
 UndocumentedTestTask.new do |t|
   t.name = 'do_test_pure'
@@ -257,7 +259,7 @@ if defined?(RUBY_ENGINE) and RUBY_ENGINE == 'jruby'
   end
 
   desc "Testing library (jruby)"
-  task :test_ext => [ :create_jar, :do_test_ext ]
+  task :test_ext => [ :create_jar, :check_env, :do_test_ext ]
 
   UndocumentedTestTask.new do |t|
     t.name = 'do_test_ext'
@@ -331,7 +333,7 @@ else
   end
 
   desc "Testing library (extension)"
-  task :test_ext => [ :compile, :do_test_ext ]
+  task :test_ext => [ :compile, :check_env, :do_test_ext ]
 
   UndocumentedTestTask.new do |t|
     t.name = 'do_test_ext'

json.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.description = "This is a JSON implementation in pure Ruby."
   s.email = "flori@ping.de"
   s.extra_rdoc_files = ["README.rdoc"]
-  s.files = ["./tests/test_helper.rb", "./tests/test_json.rb", "./tests/test_json_addition.rb", "./tests/test_json_encoding.rb", "./tests/test_json_fixtures.rb", "./tests/test_json_generate.rb", "./tests/test_json_generic_object.rb", "./tests/test_json_string_matching.rb", "./tests/test_json_unicode.rb", ".gitignore", ".travis.yml", "CHANGES", "COPYING", "COPYING-json-jruby", "GPL", "Gemfile", "README-json-jruby.markdown", "README.rdoc", "Rakefile", "TODO", "VERSION", "data/example.json", "data/index.html", "data/prototype.js", "diagrams/.keep", "ext/json/ext/fbuffer/fbuffer.h", "ext/json/ext/generator/depend", "ext/json/ext/generator/extconf.rb", "ext/json/ext/generator/generator.c", "ext/json/ext/generator/generator.h", "ext/json/ext/parser/depend", "ext/json/ext/parser/extconf.rb", "ext/json/ext/parser/parser.c", "ext/json/ext/parser/parser.h", "ext/json/ext/parser/parser.rl", "ext/json/extconf.rb", "install.rb", "java/src/json/ext/ByteListTranscoder.java", "java/src/json/ext/Generator.java", "java/src/json/ext/GeneratorMethods.java", "java/src/json/ext/GeneratorService.java", "java/src/json/ext/GeneratorState.java", "java/src/json/ext/OptionsReader.java", "java/src/json/ext/Parser.java", "java/src/json/ext/Parser.rl", "java/src/json/ext/ParserService.java", "java/src/json/ext/RuntimeInfo.java", "java/src/json/ext/StringDecoder.java", "java/src/json/ext/StringEncoder.java", "java/src/json/ext/Utils.java", "json-java.gemspec", "json.gemspec", "json_pure.gemspec", "lib/json.rb", "lib/json/add/bigdecimal.rb", "lib/json/add/complex.rb", "lib/json/add/core.rb", "lib/json/add/date.rb", "lib/json/add/date_time.rb", "lib/json/add/exception.rb", "lib/json/add/ostruct.rb", "lib/json/add/range.rb", "lib/json/add/rational.rb", "lib/json/add/regexp.rb", "lib/json/add/struct.rb", "lib/json/add/symbol.rb", "lib/json/add/time.rb", "lib/json/common.rb", "lib/json/ext.rb", "lib/json/ext/.keep", "lib/json/generic_object.rb", "lib/json/pure.rb", "lib/json/pure/generator.rb", "lib/json/pure/parser.rb", "lib/json/version.rb", "tests/fixtures/fail1.json", "tests/fixtures/fail10.json", "tests/fixtures/fail11.json", "tests/fixtures/fail12.json", "tests/fixtures/fail13.json", "tests/fixtures/fail14.json", "tests/fixtures/fail18.json", "tests/fixtures/fail19.json", "tests/fixtures/fail2.json", "tests/fixtures/fail20.json", "tests/fixtures/fail21.json", "tests/fixtures/fail22.json", "tests/fixtures/fail23.json", "tests/fixtures/fail24.json", "tests/fixtures/fail25.json", "tests/fixtures/fail27.json", "tests/fixtures/fail28.json", "tests/fixtures/fail3.json", "tests/fixtures/fail4.json", "tests/fixtures/fail5.json", "tests/fixtures/fail6.json", "tests/fixtures/fail7.json", "tests/fixtures/fail8.json", "tests/fixtures/fail9.json", "tests/fixtures/pass1.json", "tests/fixtures/pass15.json", "tests/fixtures/pass16.json", "tests/fixtures/pass17.json", "tests/fixtures/pass2.json", "tests/fixtures/pass26.json", "tests/fixtures/pass3.json", "tests/setup_variant.rb", "tests/test_json.rb", "tests/test_json_addition.rb", "tests/test_json_encoding.rb", "tests/test_json_fixtures.rb", "tests/test_json_generate.rb", "tests/test_json_generic_object.rb", "tests/test_json_string_matching.rb", "tests/test_json_unicode.rb", "tools/fuzz.rb", "tools/server.rb"]
+  s.files = ["./tests/test_helper.rb", "./tests/test_json.rb", "./tests/test_json_addition.rb", "./tests/test_json_encoding.rb", "./tests/test_json_fixtures.rb", "./tests/test_json_generate.rb", "./tests/test_json_generic_object.rb", "./tests/test_json_string_matching.rb", "./tests/test_json_unicode.rb", ".gitignore", ".travis.yml", "CHANGES", "COPYING", "COPYING-json-jruby", "GPL", "Gemfile", "README-json-jruby.markdown", "README.rdoc", "Rakefile", "TODO", "VERSION", "data/example.json", "data/index.html", "data/prototype.js", "diagrams/.keep", "ext/json/ext/fbuffer/fbuffer.h", "ext/json/ext/generator/depend", "ext/json/ext/generator/extconf.rb", "ext/json/ext/generator/generator.c", "ext/json/ext/generator/generator.h", "ext/json/ext/parser/depend", "ext/json/ext/parser/extconf.rb", "ext/json/ext/parser/parser.c", "ext/json/ext/parser/parser.h", "ext/json/ext/parser/parser.rl", "ext/json/extconf.rb", "install.rb", "java/src/json/ext/ByteListTranscoder.java", "java/src/json/ext/Generator.java", "java/src/json/ext/GeneratorMethods.java", "java/src/json/ext/GeneratorService.java", "java/src/json/ext/GeneratorState.java", "java/src/json/ext/OptionsReader.java", "java/src/json/ext/Parser.java", "java/src/json/ext/Parser.rl", "java/src/json/ext/ParserService.java", "java/src/json/ext/RuntimeInfo.java", "java/src/json/ext/StringDecoder.java", "java/src/json/ext/StringEncoder.java", "java/src/json/ext/Utils.java", "json-java.gemspec", "json.gemspec", "json_pure.gemspec", "lib/json.rb", "lib/json/add/bigdecimal.rb", "lib/json/add/complex.rb", "lib/json/add/core.rb", "lib/json/add/date.rb", "lib/json/add/date_time.rb", "lib/json/add/exception.rb", "lib/json/add/ostruct.rb", "lib/json/add/range.rb", "lib/json/add/rational.rb", "lib/json/add/regexp.rb", "lib/json/add/struct.rb", "lib/json/add/symbol.rb", "lib/json/add/time.rb", "lib/json/common.rb", "lib/json/ext.rb", "lib/json/ext/.keep", "lib/json/generic_object.rb", "lib/json/pure.rb", "lib/json/pure/generator.rb", "lib/json/pure/parser.rb", "lib/json/version.rb", "tests/fixtures/fail1.json", "tests/fixtures/fail10.json", "tests/fixtures/fail11.json", "tests/fixtures/fail12.json", "tests/fixtures/fail13.json", "tests/fixtures/fail14.json", "tests/fixtures/fail18.json", "tests/fixtures/fail19.json", "tests/fixtures/fail2.json", "tests/fixtures/fail20.json", "tests/fixtures/fail21.json", "tests/fixtures/fail22.json", "tests/fixtures/fail23.json", "tests/fixtures/fail24.json", "tests/fixtures/fail25.json", "tests/fixtures/fail27.json", "tests/fixtures/fail28.json", "tests/fixtures/fail3.json", "tests/fixtures/fail4.json", "tests/fixtures/fail5.json", "tests/fixtures/fail6.json", "tests/fixtures/fail7.json", "tests/fixtures/fail8.json", "tests/fixtures/fail9.json", "tests/fixtures/pass1.json", "tests/fixtures/pass15.json", "tests/fixtures/pass16.json", "tests/fixtures/pass17.json", "tests/fixtures/pass2.json", "tests/fixtures/pass26.json", "tests/fixtures/pass3.json", "tests/test_helper.rb", "tests/test_json.rb", "tests/test_json_addition.rb", "tests/test_json_encoding.rb", "tests/test_json_fixtures.rb", "tests/test_json_generate.rb", "tests/test_json_generic_object.rb", "tests/test_json_string_matching.rb", "tests/test_json_unicode.rb", "tools/fuzz.rb", "tools/server.rb"]
   s.homepage = "http://flori.github.com/json"
   s.licenses = ["Ruby"]
   s.rdoc_options = ["--title", "JSON implemention for ruby", "--main", "README.rdoc"]
@@ -24,16 +24,13 @@ Gem::Specification.new do |s|
     s.specification_version = 4
 
     if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
-      s.add_development_dependency(%q<permutation>, [">= 0"])
       s.add_development_dependency(%q<sdoc>, ["~> 0.3.16"]) if RUBY_VERSION > "1.8.6"
       s.add_development_dependency(%q<rake>, ["~> 0.9.2"])
     else
-      s.add_dependency(%q<permutation>, [">= 0"])
       s.add_dependency(%q<sdoc>, ["~> 0.3.16"]) if RUBY_VERSION > "1.8.6"
       s.add_dependency(%q<rake>, ["~> 0.9.2"])
     end
   else
-    s.add_dependency(%q<permutation>, [">= 0"])
     s.add_dependency(%q<sdoc>, ["~> 0.3.16"]) if RUBY_VERSION > "1.8.6"
     s.add_dependency(%q<rake>, ["~> 0.9.2"])
   end

json_pure.gemspec

@@ -6,20 +6,6 @@
 require 'tempfile'
 require 'ostruct'
 
-unless Array.method_defined?(:permutation)
-  begin
-    require 'enumerator'
-    require 'permutation'
-    class Array
-      def permutation
-        Permutation.for(self).to_enum.map { |x| x.project }
-      end
-    end
-  rescue LoadError
-    warn "Skipping permutation tests."
-  end
-end
-
 class TestJSON < Test::Unit::TestCase
   include JSON