Define OptionParser::Version

Author: nobu

lib/optparse.rb

@@ -419,6 +419,8 @@
 # have any questions, file a ticket at http://bugs.ruby-lang.org.
 #
 class OptionParser
+ OptionParser::Version = "0.1.0"
+
  # :stopdoc:
  NoArgument = [NO_ARGUMENT = :NONE, nil].freeze
  RequiredArgument = [REQUIRED_ARGUMENT = :REQUIRED, true].freeze

optparse.gemspec

@@ -1,6 +1,14 @@
+name = File.basename(__FILE__, ".gemspec")
+version = nil
+["lib", ".."].find do |dir|
+ version = File.foreach(File.join(__dir__, dir, "#{name}.rb")) do |line|
+ /^\s*OptionParser::Version\s*=\s*"(.*)"/ =~ line and break $1
+ end rescue nil
+end
+
 Gem::Specification.new do |spec|
- spec.name = "optparse"
- spec.version = "0.1.0"
+ spec.name = name
+ spec.version = version
  spec.authors = ["Nobu Nakada"]
  spec.email = ["nobu@ruby-lang.org"]