Gem::Specification.new do |spec| spec.name = "embulk-output-ftp" spec.version = "0.1.0" spec.authors = ["Satoshi Akama"] spec.summary = %[FTP file output plugin for Embulk] spec.description = %[Stores files on FTP.] spec.email = ["satoshiakama@gmail.com"] spec.licenses = ["Apache 2.0"] set this: spec.homepage = "https://github.com/sakama/embulk-output-ftp" spec.files = `git ls-files`.split("\n") + Dir["classpath/*.jar"] spec.test_files = spec.files.grep(%r"^(test|spec)/") spec.require_paths = ["lib"] spec.add_development_dependency 'bundler', ['~> 1.0'] spec.add_development_dependency 'rake', ['>= 10.0'] end