Gem::Specification.new do |s| s.name = 'tarwriter' s.version = '2.0.5' s.date = '2019-12-18' s.summary = 'a pure-ruby class to build/read tar archive' s.description = 'a pure-ruby class to build/read ustar tar archive. You can append to exiting archive.' s.authors = ['TOYODA Eizi' ] s.email = 'toyoda.eizi@gmail.com' s.files = ["lib/tarwriter.rb", "lib/tarreader.rb"] s.homepage = "https://github.com/etoyoda/tarwriter" s.license = "GPL-3.0-or-later" s.required_ruby_version = '~> 2.3' s.metadata = { "source_code_uri" => "https://github.com/etoyoda/tarwriter" } end