Add argument-supported rake task boilerplate

lib/rake_option_parser_boilerplate.rb

@@ -0,0 +1,14 @@
+module RakeOptionParserBoilerplate
+  module_function
+
+  def process_args(options:, banner:, hash: {})
+    o = OptionParser.new
+    o.banner = banner
+    hash.each do |command_line_argument, setup_value|
+      o.on(*setup_value) { |result| options[command_line_argument] = result }
+    end
+    args = o.order!(ARGV) {}
+    o.parse!(args)
+    options
+  end
+end