ostruct.gemspec in ostruct-0.1.0 vs ostruct.gemspec in ostruct-0.3.0

@@ -1,18 +1,26 @@
 # frozen_string_literal: true
 
+name = File.basename(__FILE__, ".gemspec")
+version = ["lib", Array.new(name.count("-")+1, "..").join("/")].find do |dir|
+  break File.foreach(File.join(__dir__, dir, "#{name.tr('-', '/')}.rb")) do |line|
+    /^\s*VERSION\s*=\s*"(.*)"/ =~ line and break $1
+  end rescue nil
+end
+
 Gem::Specification.new do |spec|
-  spec.name          = "ostruct"
-  spec.version       = "0.1.0"
+  spec.name          = name
+  spec.version       = version
   spec.authors       = ["Marc-Andre Lafortune"]
   spec.email         = ["[e-mail]"]
 
   spec.summary       = %q{Class to build custom data structures, similar to a Hash.}
   spec.description   = %q{Class to build custom data structures, similar to a Hash.}
   spec.homepage      = "https://github.com/ruby/ostruct"
   spec.license       = "BSD-2-Clause"
+  spec.required_ruby_version = ">= 2.5.0"
 
-  spec.files         = [".gitignore", ".travis.yml", "Gemfile", "LICENSE.txt", "README.md", "Rakefile", "bin/console", "bin/setup", "lib/ostruct.rb", "ostruct.gemspec"]
+  spec.files         = [".gitignore", "Gemfile", "LICENSE.txt", "README.md", "Rakefile", "bin/console", "bin/setup", "lib/ostruct.rb", "ostruct.gemspec"]
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ["lib"]
 
   spec.add_development_dependency "bundler"