jruby · Dec 4, 2015 · Dec 4, 2015
diff --git a/COPYING b/COPYING
@@ -78,6 +78,10 @@ below. Also see LICENSE.RUBY for most files found in lib/ruby/stdlib.
  Some parts of the RubySL implementations of the stdlib in lib/ruby/truffle/rubysl
  are copyright (c) 2013 Brian Shirai and are licensed under the 3-clause BSD license.
 
+ pr-zlib is copyright Park Heesob and Daniel Berger. "This library is covered
+ under the same license as zlib itself. For the text of the zlib license,
+ please see http://zlib.net/zlib_license.html."
+
 The complete text of the Eclipse Public License is as follows:
 
   Eclipse Public License - v 1.0

diff --git a/lib/ruby/truffle/README.md b/lib/ruby/truffle/README.md
@@ -0,0 +1 @@
+pr-zlib is version 1.0.3, commit c1418dd1abde5c4f6bcc7073b7965eeb4c168144
diff --git a/lib/ruby/truffle/pr-zlib/CHANGES b/lib/ruby/truffle/pr-zlib/CHANGES
@@ -0,0 +1,23 @@
+= 1.0.3 - 3-Dec-2015
+* Added a license. This library is now covered under the zlib license.
+* Some performance tuning. Reads are 2-3 times faster, while writes are
+  about twenty percent faster.
+* This gem is now signed.
+* Added a pr-zlib.rb file for convenience.
+* Use require_relative internally where appropriate.
+* More stringent value and limit checking added. Thanks go to
+  Chris Seaton for the patches.
+
+= 1.0.2 - 24-Jun-2015
+* Fixed a marshalling issue.
+
+= 1.0.1 - 16-Oct-2014
+* Added benchmark and profiler scripts and rake tasks.
+* Switched profiling scripts to use ruby-prof.
+* The test-unit and ruby-prof libraries are now development dependencies.
+* Minor updates to eliminate warnings for Ruby 1.9.3 and 2.1.
+* Some minor test suite updates, mostly for 1.9.3.
+* Updated the gemspec, removed Rubyforge references.
+
+= 1.0.0 - 12-Jun-2009
+* Initial release
diff --git a/lib/ruby/truffle/pr-zlib/MANIFEST b/lib/ruby/truffle/pr-zlib/MANIFEST
@@ -0,0 +1,20 @@
+CHANGES
+MANIFEST
+README
+pr-zlib.gemspec
+bin/minizip.rb
+certs/djberg96_pub.pem
+examples/example_rbzlib.rb
+lib/pr-zlib.rb
+lib/pr/rbzlib.rb
+lib/pr/zlib.rb
+test/test_rbzlib_bytef.rb
+test/test_rbzlib_posf.rb
+test/test_rbzlib.rb
+test/test_zlib_deflate.rb
+test/test_zlib_gzip_file.rb
+test/test_zlib_gzip_reader.rb
+test/test_zlib_gzip_writer.rb
+test/test_zlib_inflate.rb
+test/test_zlib_zstream.rb
+test/test_zlib.rb
diff --git a/lib/ruby/truffle/pr-zlib/README b/lib/ruby/truffle/pr-zlib/README
@@ -0,0 +1,52 @@
+= Description
+The pr-zlib library is a pure Ruby version of the zlib compression library.
+It consists of both a port of zlib.h and the Ruby zlib library that ships as
+part of the standard library.
+
+= Synopsis
+
+# Imitating a bit of code used in rubygems
+require 'pr/zlib'
+require 'stringio'
+
+data = StringIO.new(data)
+Zlib::GzipReader.new(data).read
+
+= Motivation
+
+First, building the zlib C library on MS Windows with Visual C++ is very
+difficult. However, certain libraries depend on zlib, most notably rubygems.
+By providing a pure Ruby version we eliminate any compiler or platform
+compatability issues.
+
+Second, even some Unix distributions, such as Debian, do not ship with
+the zlib library by default. By creating a pure Ruby version of the zlib
+library we eliminate the need to install a 3rd party C library, and
+eliminate a potential weak link in the dependency chain.
+
+Third, by creating pure Ruby versions of the library and the interface we
+are more likely to receive patches, feature requests, documentation updates,
+etc, from the Ruby community since not everyone who knows Ruby also knows C.
+
+Last, the zlib interface that ships as part of the stdlib is a little on the
+clunky side. By providing a pure Ruby version, authors can create their own
+interface as they see fit.
+
+= TODO
+
+More tests, and better tests, are needed for both Rbzlib and Zlib.
+
+= Caveats
+You cannot use both this library and the zlib standard library at the same
+time. If you try to use both there is a good chance you will get an allocation
+error of some sort. If you already have zlib, you do not need this library.
+
+= License
+
+This library is covered under the same license as zlib itself. For the text
+of the zlib license, please see http://zlib.net/zlib_license.html.
+
+= Authors
+
+* Park Heesob (C translation)
+* Daniel Berger (Testing, packaging, deployment)
diff --git a/lib/ruby/truffle/pr-zlib/Rakefile b/lib/ruby/truffle/pr-zlib/Rakefile
@@ -0,0 +1,116 @@
+require 'rake'
+require 'rake/clean'
+require 'rake/testtask'
+require 'rbconfig'
+
+CLEAN.include("**/*.rbc", "**/*.gem", "**/*.txt", "**/*.gz")
+
+desc 'Install the pr-zlib library as zlib'
+task :install_as_zlib do
+  install_dir = File.join(RbConfig::CONFIG['sitelibdir'], 'pr')
+  Dir.mkdir(install_dir) unless File.exists?(install_dir)
+
+  cp('lib/pr/zlib.rb', RbConfig::CONFIG['sitelibdir'], :verbose => true)
+  cp('lib/pr/rbzlib.rb', install_dir, :verbose => true)
+end
+
+namespace :gem do
+  desc 'Create the pr-zlib gem'
+  task :create do
+    require 'rubygems/package'
+    spec = eval(IO.read('pr-zlib.gemspec'))
+    spec.signing_key = File.join(Dir.home, '.ssh', 'gem-private_key.pem')
+    Gem::Package.build(spec, true)
+  end
+
+  desc 'Install the pr-zlib gem'
+  task :install => [:create] do
+    file = Dir["*.gem"].first
+    sh "gem install -l #{file}"
+  end
+end
+
+namespace :bench do
+  desc "Run the zlib benchmark"
+  task :zlib do
+    Dir.chdir('profile'){ ruby "bench_zlib.rb" }
+  end
+
+  desc "Run the pr-zlib benchmark"
+  task :przlib do
+    sh "ruby -Ilib profile/bench_pr_zlib.rb"
+  end
+end
+
+namespace :profile do
+  desc "Run the profiler on the write operation"
+  task :write do
+    sh "ruby -Ilib profile/profile_pr_zlib_write.rb"
+  end
+
+  desc "Run the profiler on the read operation"
+  task :read do
+    sh "ruby -Ilib profile/profile_pr_zlib_read.rb"
+  end
+end
+
+Rake::TestTask.new do |t|
+  t.warning = true
+  t.verbose = true
+end
+
+Rake::TestTask.new('test_zlib') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_zlib.rb']
+end
+
+Rake::TestTask.new('test_gzip_file') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_zlib_gzip_file.rb']
+end
+
+Rake::TestTask.new('test_gzip_reader') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_zlib_gzip_reader.rb']
+end
+
+Rake::TestTask.new('test_gzip_writer') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_zlib_gzip_writer.rb']
+end
+
+Rake::TestTask.new('test_deflate') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_zlib_deflate.rb']
+end
+
+Rake::TestTask.new('test_inflate') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_zlib_inflate.rb']
+end
+
+Rake::TestTask.new('test_rbzlib') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_rbzlib.rb']
+end
+
+Rake::TestTask.new('test_rbzlib_bytef') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_rbzlib_bytef.rb']
+end
+
+Rake::TestTask.new('test_rbzlib_posf') do |t|
+  t.warning = true
+  t.verbose = true
+  t.test_files = FileList['test/test_rbzlib_posf.rb']
+end
+
+task :default => :test
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		pr-zlib is version 1.0.3, commit c1418dd1abde5c4f6bcc7073b7965eeb4c168144