class ClosureCompiler < Formula desc "JavaScript optimizing compiler" homepage "https://github.com/google/closure-compiler" url "https://search.maven.org/remotecontent?filepath=com/google/javascript/closure-compiler/v20170626/closure-compiler-v20170626.jar" sha256 "20f17575d90d00be6ee444447ac893129778110acb7db9080ecd5b0ae8cc4aeb" bottle :unneeded depends_on :java => "1.7+" def install libexec.install Dir["*"] bin.write_jar_script libexec.children.first, "closure-compiler" end test do (testpath/"test.js").write <<-EOS.undent (function(){ var t = true; return t; })(); EOS system bin/"closure-compiler", "--js", testpath/"test.js", "--js_output_file", testpath/"out.js" assert_equal (testpath/"out.js").read.chomp, "(function(){return!0})();" end end