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Posted to commits@arrow.apache.org by ko...@apache.org on 2018/11/09 02:09:05 UTC

[arrow] branch master updated: ARROW-3723: [Plasma][Ruby] Add Ruby bindings of Plasma

This is an automated email from the ASF dual-hosted git repository.

kou pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/arrow.git


The following commit(s) were added to refs/heads/master by this push:
     new a7df9c6  ARROW-3723: [Plasma][Ruby] Add Ruby bindings of Plasma
a7df9c6 is described below

commit a7df9c6c1e5f96d4dec71e3598028f7126032771
Author: Yosuke Shiro <ys...@gmail.com>
AuthorDate: Fri Nov 9 11:08:40 2018 +0900

    ARROW-3723: [Plasma][Ruby] Add Ruby bindings of Plasma
    
    It's Ruby bindings of Plasma.
    
    Author: Yosuke Shiro <ys...@gmail.com>
    Author: Kouhei Sutou <ko...@clear-code.com>
    
    Closes #2921 from shiro615/ruby-support-plasma and squashes the following commits:
    
    0315d9a6 <Kouhei Sutou> Add missing license header
    92d18df4 <Yosuke Shiro> Remove pathname
    501c7e18 <Yosuke Shiro> Change permissions
    f3f06f61 <Yosuke Shiro> Add .gitignore
    62729549 <Yosuke Shiro> Add Pathname support
    5f876d4d <Yosuke Shiro> Add red-plasma in Travis CI
    b71e6552 <Yosuke Shiro> Build Plasma in Travis CI
    d11bbd75 <Yosuke Shiro>  Support plasma
---
 .travis.yml                                 |   1 +
 ci/travis_script_ruby.sh                    |   9 ++
 ruby/red-plasma/.gitignore                  |  20 +++
 ruby/red-plasma/Gemfile                     |  22 +++
 ruby/red-plasma/LICENSE.txt                 | 202 ++++++++++++++++++++++++++++
 ruby/red-plasma/NOTICE.txt                  |   2 +
 ruby/red-plasma/README.md                   |  60 +++++++++
 ruby/red-plasma/Rakefile                    |  39 ++++++
 ruby/red-plasma/dependency-check/Rakefile   |  43 ++++++
 ruby/red-plasma/lib/plasma.rb               |  29 ++++
 ruby/red-plasma/lib/plasma/client.rb        |  26 ++++
 ruby/red-plasma/lib/plasma/loader.rb        |  35 +++++
 ruby/red-plasma/red-plasma.gemspec          |  49 +++++++
 ruby/red-plasma/test/helper.rb              |  27 ++++
 ruby/red-plasma/test/helper/plasma-store.rb |  50 +++++++
 ruby/red-plasma/test/run-test.rb            |  37 +++++
 ruby/red-plasma/test/test-plasma-client.rb  |  34 +++++
 ruby/red-plasma/version.rb                  |  71 ++++++++++
 18 files changed, 756 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 20bf4ae..457e656 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -252,6 +252,7 @@ matrix:
     - ARROW_TRAVIS_ORC=1
     - ARROW_TRAVIS_GANDIVA=1
     - ARROW_TRAVIS_PARQUET=1
+    - ARROW_TRAVIS_PLASMA=1
     cache:
     addons:
     rvm: 2.2
diff --git a/ci/travis_script_ruby.sh b/ci/travis_script_ruby.sh
index b01cf3a..7d69bee 100755
--- a/ci/travis_script_ruby.sh
+++ b/ci/travis_script_ruby.sh
@@ -69,3 +69,12 @@ if [ -d $ARROW_C_GLIB_INSTALL_MESON/lib/$(arch)-linux-gnu ]; then
 #   (arrow_ruby_run_test $ARROW_C_GLIB_INSTALL_MESON/lib)
 fi
 popd
+
+pushd $ARROW_RUBY_DIR/red-plasma
+(arrow_ruby_run_test $ARROW_C_GLIB_INSTALL_AUTOTOOLS/lib)
+if [ -d $ARROW_C_GLIB_INSTALL_MESON/lib/$(arch)-linux-gnu ]; then
+  (arrow_ruby_run_test $ARROW_C_GLIB_INSTALL_MESON/lib/$(arch)-linux-gnu)
+# else # TODO: Enable this
+#   (arrow_ruby_run_test $ARROW_C_GLIB_INSTALL_MESON/lib)
+fi
+popd
diff --git a/ruby/red-plasma/.gitignore b/ruby/red-plasma/.gitignore
new file mode 100644
index 0000000..bd50ff8
--- /dev/null
+++ b/ruby/red-plasma/.gitignore
@@ -0,0 +1,20 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+/lib/plasma/version.rb
+
+/pkg/
diff --git a/ruby/red-plasma/Gemfile b/ruby/red-plasma/Gemfile
new file mode 100644
index 0000000..3907918
--- /dev/null
+++ b/ruby/red-plasma/Gemfile
@@ -0,0 +1,22 @@
+# -*- ruby -*-
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+source "https://rubygems.org/"
+
+gemspec
diff --git a/ruby/red-plasma/LICENSE.txt b/ruby/red-plasma/LICENSE.txt
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/ruby/red-plasma/LICENSE.txt
@@ -0,0 +1,202 @@
+
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+      the terms of any separate license agreement you may have executed
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diff --git a/ruby/red-plasma/NOTICE.txt b/ruby/red-plasma/NOTICE.txt
new file mode 100644
index 0000000..e08aeda
--- /dev/null
+++ b/ruby/red-plasma/NOTICE.txt
@@ -0,0 +1,2 @@
+Apache Arrow
+Copyright 2016 The Apache Software Foundation
diff --git a/ruby/red-plasma/README.md b/ruby/red-plasma/README.md
new file mode 100644
index 0000000..19038af
--- /dev/null
+++ b/ruby/red-plasma/README.md
@@ -0,0 +1,60 @@
+<!---
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+
+# Red Plasma - Plasma Ruby
+
+Red Plasma is the Ruby bindings of Plasma. Red Plasma is based on GObject Introspection.
+
+Plasma is an in-memory object store and cache for big data.
+
+[GObject Introspection](https://wiki.gnome.org/action/show/Projects/GObjectIntrospection) is a middleware for language bindings of C library. GObject Introspection can generate language bindings automatically at runtime.
+
+Red Plasma uses [Plasma GLib](https://github.com/apache/arrow/tree/master/c_glib/plasma-glib) and [gobject-introspection gem](https://rubygems.org/gems/gobject-introspection) to generate Ruby bindings of Plasma.
+
+Plasma GLib is a C wrapper for [Plasma C++](https://github.com/apache/arrow/tree/master/cpp/plasma). GObject Introspection can't use Plasma C++ directly. Plasma GLib is a bridge between Plasma C++ and GObject Introspection.
+
+gobject-introspection gem is a Ruby bindings of GObject Introspection. Red Plasma uses GObject Introspection via gobject-introspection gem.
+
+## Install
+
+Install Plasma GLib before install Red Plasma. Use [packages.red-data-tools.org](https://github.com/red-data-tools/packages.red-data-tools.org) for installing Plasma GLib.
+
+Note that the Plasma GLib packages are "unofficial". "Official" packages will be released in the future.
+
+Install Red Plasma after you install Plasma GLib:
+
+```text
+% gem install red-plasma
+```
+
+## Usage
+
+Starting the Plasma store
+
+```console
+plasma_store_server -m 1000000000 -s /tmp/plasma
+```
+
+Creating a Plasma client
+
+```ruby
+require "plasma"
+
+client = Plasma::Client.new("/tmp/plasma")
+```
diff --git a/ruby/red-plasma/Rakefile b/ruby/red-plasma/Rakefile
new file mode 100644
index 0000000..96851af
--- /dev/null
+++ b/ruby/red-plasma/Rakefile
@@ -0,0 +1,39 @@
+# -*- ruby -*-
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require "rubygems"
+require "bundler/gem_helper"
+
+base_dir = File.join(__dir__)
+
+helper = Bundler::GemHelper.new(base_dir)
+helper.install
+
+release_task = Rake::Task["release"]
+release_task.prerequisites.replace(["build", "release:rubygem_push"])
+
+desc "Run tests"
+task :test do
+  cd("dependency-check") do
+    ruby("-S", "rake")
+  end
+  ruby("test/run-test.rb")
+end
+
+task default: :test
diff --git a/ruby/red-plasma/dependency-check/Rakefile b/ruby/red-plasma/dependency-check/Rakefile
new file mode 100644
index 0000000..d5c728e
--- /dev/null
+++ b/ruby/red-plasma/dependency-check/Rakefile
@@ -0,0 +1,43 @@
+# -*- ruby -*-
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require "pkg-config"
+require "native-package-installer"
+
+case RUBY_PLATFORM
+when /mingw|mswin/
+  task :default => "nothing"
+else
+  task :default => "dependency:check"
+end
+
+task :nothing do
+end
+
+namespace :dependency do
+  desc "Check dependency"
+  task :check do
+    unless PKGConfig.check_version?("plasma-glib")
+      unless NativePackageInstaller.install(:debian => "libplasma-glib-dev",
+                                            :redhat => "plasma-glib-devel")
+        exit(false)
+      end
+    end
+  end
+end
diff --git a/ruby/red-plasma/lib/plasma.rb b/ruby/red-plasma/lib/plasma.rb
new file mode 100644
index 0000000..c8b4aa8
--- /dev/null
+++ b/ruby/red-plasma/lib/plasma.rb
@@ -0,0 +1,29 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require "arrow"
+
+require "plasma/version"
+
+require "plasma/loader"
+
+module Plasma
+  class Error < StandardError
+  end
+
+  Loader.load
+end
diff --git a/ruby/red-plasma/lib/plasma/client.rb b/ruby/red-plasma/lib/plasma/client.rb
new file mode 100644
index 0000000..464ef8c
--- /dev/null
+++ b/ruby/red-plasma/lib/plasma/client.rb
@@ -0,0 +1,26 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+module Plasma
+  class Client
+    alias_method :initialize_raw, :initialize
+    def initialize(socket_path)
+      socket_path = socket_path.to_path if socket_path.respond_to?(:to_path)
+      initialize_raw(socket_path)
+    end
+  end
+end
diff --git a/ruby/red-plasma/lib/plasma/loader.rb b/ruby/red-plasma/lib/plasma/loader.rb
new file mode 100644
index 0000000..f9125a6
--- /dev/null
+++ b/ruby/red-plasma/lib/plasma/loader.rb
@@ -0,0 +1,35 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+module Plasma
+  class Loader < GObjectIntrospection::Loader
+    class << self
+      def load
+        super("Plasma", Plasma)
+      end
+    end
+
+    private
+    def post_load(repository, namespace)
+      require_libraries
+    end
+
+    def require_libraries
+      require "plasma/client"
+    end
+  end
+end
diff --git a/ruby/red-plasma/red-plasma.gemspec b/ruby/red-plasma/red-plasma.gemspec
new file mode 100644
index 0000000..53b4d1e
--- /dev/null
+++ b/ruby/red-plasma/red-plasma.gemspec
@@ -0,0 +1,49 @@
+# -*- ruby -*-
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require_relative "version"
+
+Gem::Specification.new do |spec|
+  spec.name = "red-plasma"
+  version_components = [
+    Plasma::Version::MAJOR.to_s,
+    Plasma::Version::MINOR.to_s,
+    Plasma::Version::MICRO.to_s,
+    # "beta1",
+  ]
+  spec.version = version_components.join(".")
+  spec.homepage = "https://arrow.apache.org/"
+  spec.authors = ["Apache Arrow Developers"]
+  spec.email = ["dev@arrow.apache.org"]
+
+  spec.summary = "Red Plasma is the Ruby bindings of Plasma"
+  spec.description = "Plasma is an in-memory object store and cache for big data."
+  spec.license = "Apache-2.0"
+  spec.files = ["README.md", "Rakefile", "Gemfile", "#{spec.name}.gemspec"]
+  spec.files += ["LICENSE.txt", "NOTICE.txt"]
+  spec.files += Dir.glob("lib/**/*.rb")
+  spec.test_files += Dir.glob("test/**/*")
+  spec.extensions = ["dependency-check/Rakefile"]
+
+  spec.add_runtime_dependency("red-arrow")
+
+  spec.add_development_dependency("bundler")
+  spec.add_development_dependency("rake")
+  spec.add_development_dependency("test-unit")
+end
diff --git a/ruby/red-plasma/test/helper.rb b/ruby/red-plasma/test/helper.rb
new file mode 100644
index 0000000..d66d43e
--- /dev/null
+++ b/ruby/red-plasma/test/helper.rb
@@ -0,0 +1,27 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require_relative "../../red-arrow/version"
+require_relative "../version"
+
+require "plasma"
+
+require "tempfile"
+
+require "test-unit"
+
+require_relative "helper/plasma-store"
diff --git a/ruby/red-plasma/test/helper/plasma-store.rb b/ruby/red-plasma/test/helper/plasma-store.rb
new file mode 100644
index 0000000..30504fb
--- /dev/null
+++ b/ruby/red-plasma/test/helper/plasma-store.rb
@@ -0,0 +1,50 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+module Helper
+  class PlasmaStore
+    def initialize(options={})
+      @path = `pkg-config --variable=executable plasma`.chomp
+      @memory_size = options[:memory_size] || 1024 * 1024
+      @socket_file = Tempfile.new(["plasma-store", ".sock"])
+      @socket_file.close
+      @pid = nil
+      FileUtils.rm_f(socket_path)
+    end
+
+    def socket_path
+      @socket_file.path
+    end
+
+    def start
+      @pid = spawn(@path,
+                   "-m", @memory_size.to_s,
+                   "-s", socket_path)
+      until File.exist?(socket_path)
+        if Process.waitpid(@pid, Process::WNOHANG)
+          raise "Failed to run plasma_store_server: #{@path}"
+        end
+      end
+    end
+
+    def stop
+      return if @pid.nil?
+      Process.kill(:TERM, @pid)
+      Process.waitpid(@pid)
+    end
+  end
+end
diff --git a/ruby/red-plasma/test/run-test.rb b/ruby/red-plasma/test/run-test.rb
new file mode 100755
index 0000000..b826f3e
--- /dev/null
+++ b/ruby/red-plasma/test/run-test.rb
@@ -0,0 +1,37 @@
+#!/usr/bin/env ruby
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+$VERBOSE = true
+
+require "pathname"
+
+base_dir = Pathname.new(__dir__).parent.expand_path
+arrow_base_dir = base_dir.parent + "red-arrow"
+
+lib_dir = base_dir + "lib"
+test_dir = base_dir + "test"
+
+arrow_lib_dir = arrow_base_dir + "lib"
+
+$LOAD_PATH.unshift(arrow_lib_dir.to_s)
+$LOAD_PATH.unshift(lib_dir.to_s)
+
+require_relative "helper"
+
+exit(Test::Unit::AutoRunner.run(true, test_dir.to_s))
diff --git a/ruby/red-plasma/test/test-plasma-client.rb b/ruby/red-plasma/test/test-plasma-client.rb
new file mode 100644
index 0000000..e7f8dbd
--- /dev/null
+++ b/ruby/red-plasma/test/test-plasma-client.rb
@@ -0,0 +1,34 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+class TestPlasmaClient < Test::Unit::TestCase
+  def setup
+    @store = nil
+    @store = Helper::PlasmaStore.new
+    @store.start
+  end
+
+  def teardown
+    @store.stop if @store
+  end
+
+  def test_new
+    assert_nothing_raised do
+      Plasma::Client.new(Pathname(@store.socket_path))
+    end
+  end
+end
diff --git a/ruby/red-plasma/version.rb b/ruby/red-plasma/version.rb
new file mode 100644
index 0000000..015aac9
--- /dev/null
+++ b/ruby/red-plasma/version.rb
@@ -0,0 +1,71 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+require "pathname"
+
+version_rb_path = Pathname.new(__FILE__)
+base_dir = version_rb_path.dirname
+pom_xml_path = base_dir.join("..", "..", "java", "pom.xml")
+lib_version_rb_path = base_dir.join("lib", "plasma", "version.rb")
+
+need_update = false
+if not lib_version_rb_path.exist?
+  need_update = true
+elsif version_rb_path.mtime > lib_version_rb_path.mtime
+  need_update = true
+elsif pom_xml_path.exist? and pom_xml_path.mtime > lib_version_rb_path.mtime
+  need_update = true
+end
+
+if need_update
+  version = pom_xml_path.read.scan(/^  <version>(.+?)<\/version>/)[0][0]
+  major, minor, micro, tag = version.split(/[.-]/)
+  lib_version_rb_path.open("w") do |lib_version_rb|
+    lib_version_rb.puts(<<-RUBY)
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+module Plasma
+  module Version
+    MAJOR = #{major}
+    MINOR = #{minor}
+    MICRO = #{micro}
+    TAG = #{tag ? tag.dump : nil}
+    STRING = #{version.dump}
+  end
+
+  VERSION = Version::STRING
+end
+    RUBY
+  end
+end
+
+require_relative "lib/plasma/version"