GH-48287: [Ruby] Add minimum pure Ruby Apache Arrow reader implementation

This includes the followings:

* Prepare package
  * We use red-arrow-format as package ID
  * We use Red Arrow Format as package name
* Auto generated FlatBuffers code
  * It's generated by red-flatbuffers
* Add minimum file format reader
  * It can read only UInt8 array
* CI configuration

Author: kou

.dockerignore

@@ -40,6 +40,9 @@
 !ruby/red-arrow-cuda/Gemfile
 !ruby/red-arrow-cuda/lib/arrow-cuda/version.rb
 !ruby/red-arrow-cuda/red-arrow-cuda.gemspec
+!ruby/red-arrow-format/Gemfile
+!ruby/red-arrow-format/lib/arrow-format/version.rb
+!ruby/red-arrow-format/red-arrow-format.gemspec
 !ruby/red-gandiva/Gemfile
 !ruby/red-gandiva/lib/gandiva/version.rb
 !ruby/red-gandiva/red-gandiva.gemspec

.pre-commit-config.yaml

@@ -251,6 +251,7 @@ repos:
         exclude: >-
           (
           ?^dev/tasks/homebrew-formulae/.*\.rb$|
+          ?^ruby/red-arrow-format/lib/arrow-format/org/.*\.rb$|
           )
   - repo: https://github.com/cheshirekow/cmake-format-precommit
     rev: v0.6.13

dev/release/rat_exclude_files.txt

@@ -99,4 +99,5 @@ r/inst/include/cpp11/*.hpp
 r/tools/nixlibs-allowlist.txt
 .gitattributes
 ruby/red-arrow/.yardopts
+ruby/red-arrow-format/lib/arrow-format/org/*
 .github/pull_request_template.md

ruby/Rakefile

@@ -24,8 +24,12 @@ base_dir = File.join(__dir__)
 packages = []
 Dir.glob("#{base_dir}/*/*.gemspec") do |gemspec|
   package = File.basename(File.dirname(gemspec))
-  glib_package_name = package.gsub(/\Ared-/, "") + "-glib"
-  next unless PKGConfig.exist?(glib_package_name)
+  if package == "red-arrow-format"
+    next if RUBY_VERSION < "3.1.0"
+  else
+    glib_package_name = package.gsub(/\Ared-/, "") + "-glib"
+    next unless PKGConfig.exist?(glib_package_name)
+  end
   packages << package
 end
 

ruby/red-arrow-cuda/red-arrow-cuda.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   ]
   spec.version = version_components.compact.join(".")
   spec.homepage = "https://arrow.apache.org/"
-  spec.authors = ["Apache Arrow Developers"]
+  spec.authors = ["The Apache Software Foundation"]
   spec.email = ["[email protected]"]
 
   spec.summary = "Red Arrow CUDA is the Ruby bindings of Apache Arrow CUDA"

ruby/red-arrow-dataset/red-arrow-dataset.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   ]
   spec.version = version_components.compact.join(".")
   spec.homepage = "https://arrow.apache.org/"
-  spec.authors = ["Apache Arrow Developers"]
+  spec.authors = ["The Apache Software Foundation"]
   spec.email = ["[email protected]"]
 
   spec.summary = "Red Arrow Dataset is the Ruby bindings of Apache Arrow Dataset"

ruby/red-arrow-flight-sql/red-arrow-flight-sql.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   ]
   spec.version = version_components.compact.join(".")
   spec.homepage = "https://arrow.apache.org/"
-  spec.authors = ["Apache Arrow Developers"]
+  spec.authors = ["The Apache Software Foundation"]
   spec.email = ["[email protected]"]
 
   spec.summary =

ruby/red-arrow-flight/red-arrow-flight.gemspec

@@ -29,7 +29,7 @@ Gem::Specification.new do |spec|
   ]
   spec.version = version_components.compact.join(".")
   spec.homepage = "https://arrow.apache.org/"
-  spec.authors = ["Apache Arrow Developers"]
+  spec.authors = ["The Apache Software Foundation"]
   spec.email = ["[email protected]"]
 
   spec.summary = "Red Arrow Flight is the Ruby bindings of Apache Arrow Flight"

ruby/red-arrow-format/.gitignore

@@ -0,0 +1,19 @@
+# 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.
+
+/Gemfile.lock
+/pkg/

ruby/red-arrow-format/Gemfile

@@ -0,0 +1,26 @@
+# -*- 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
+
+gem "rake"
+gem "red-arrow", path: "../red-arrow"
+gem "test-unit"