chore(ruby): Use rubygems-requirements-system

Author: kou

dev/release/verify-release-candidate.sh

@@ -19,7 +19,7 @@
 #
 
 # Requirements
-# - Ruby >= 2.3
+# - Ruby >= 3.2
 # - Maven >= 3.3.9
 # - JDK >= 11
 # - gcc >= 4.8

ruby/README.md

@@ -23,7 +23,20 @@ Red ADBC is the Ruby bindings of ADBC GLib.
 
 ## How to install
 
+If you want to install Red ADBC by Bundler, you can add the following
+to your `Gemfile`:
+
+```ruby
+plugin "rubygems-requirements-system"
+
+gem "red-adbc"
+```
+
+If you want to install Red ADBC by RubyGems, you can use the following
+command line:
+
 ```console
+$ gem install rubygems-requirements-system
 $ gem install red-adbc
 ```
 

ruby/dependency-check/Rakefile

@@ -50,7 +50,6 @@ Gem::Specification.new do |spec|
     spec.files += [file]
   end
   spec.files += Dir.glob("lib/**/*.rb")
-  spec.extensions = ["dependency-check/Rakefile"]
 
   # For CI: sometimes we can't use the latest red-arrow due to
   # conda-forge arrow-c-glib lagging behind
@@ -60,5 +59,16 @@ Gem::Specification.new do |spec|
     spec.add_runtime_dependency("red-arrow")
   end
 
-  # spec.metadata["msys2_mingw_dependencies"] = "adbc>=#{spec.version}"
+  required_adbc_arrow_glib_version = version_components[0, 3].join(".")
+  [
+    ["debian", "libadbc-arrow-glib-dev"],
+    ["rhel", "adbc-arrow-glib-devel"],
+  ].each do |platform, package|
+    spec.requirements <<
+      "system: adbc-arrow-glib>=#{required_adbc_arrow_glib_version}: " +
+      "#{platform}: #{package}"
+  end
+
+  # spec.metadata["msys2_mingw_dependencies"] = \
+  #   "adbc>=#{required_adbc_arrow_glib_version}"
 end