[cc-frame-viewer] Add gl-matrix to third_party [redux]

tools/cc-frame-viewer/third_party/gl-matrix/tasks/test/coverage.rake

+desc "Generate JavaScript code coverage report in ./covershot"
+task :coverage => %w(
+  coverage:dependencies
+  coverage:clean
+  coverage:prepare
+  coverage:instrumentation
+  coverage:write_manifest
+  coverage:execute
+  coverage:generate
+  coverage:done
+)
+
+namespace :coverage do
+  task :dependencies do
+    unless File.exist?(base_path.join('node_modules'))
+      if %x[which npm].strip.length == 0
+        raise <<-end_error
+          Could not execute `npm`! Please make sure node.js and the Node Package
+          Manager (NPM) are available and can be executed without root
+          permissions.
+        end_error
+      else
+        cmd = "npm install && bundle exec #{$0} #{ARGV.join ' '}"
+        puts "Executing the following command:"
+        puts
+        puts "  #{cmd}"
+        puts
+        puts
+        Kernel.exec cmd
+      end
+    end
+  end
+
+  task :clean do
+    rm_rf base_path.join('covershot')
+    rm_rf base_path.join('tmp')
+  end
+
+  task :prepare do
+    manifest = sprockets['gl-matrix-manifest.js']
+    coverage_path = base_path.join('tmp/coverage')
+
+    manifest.dependencies.each do |part|
+      path = coverage_path.join('lib').join(part.pathname.basename)
+      mkdir_p(path.dirname) unless File.directory?(path.dirname)
+      File.open(path, 'w') do |f|
+        f.print part.body
+      end
+    end
+  end
+
+  task :instrumentation do
+    bin = 'jscoverage'
+    opts = [ '--no-highlight' ]
+    input = base_path.join('tmp/coverage/lib').to_s
+    output = base_path.join('tmp/coverage/lib-cov').to_s
+
+    unless system *[bin, opts, input, output].flatten
+      raise "Instrumentation failure. Please make sure `jscoverage` is installed."
+    end
+  end
+
+  task :write_manifest do
+    manifest = sprockets['gl-matrix-manifest.js']
+    coverage_path = base_path.join('tmp/coverage')
+
+    File.open(coverage_path.join('manifest.js'), 'w') do |manifest_out|
+      manifest_out.puts <<-end_script
+        var covershot = require('covershot');
+        var csrequire = covershot.require.bind(null, require);
+
+        function pull(str) {
+          var exps = csrequire(str);
+          for (var i in exps) {
+            global[i] = exps[i];
+          }
+        }
+
+        global.GLMAT_EPSILON = 0.000001;
+        global.GLMAT_ARRAY_TYPE = Float32Array;
+
+      end_script
+      manifest.dependencies.each do |part|
+        path = coverage_path.join('lib-cov').join(part.pathname.basename)
+        manifest_out.puts "pull('#{path}');"
+      end
+      manifest_out.puts <<-end_script
+        function CoverageReporter() {
+          this.reportRunnerResults = function(suite) {
+            covershot.writeCoverage();
+          };
+        };
+
+        jasmine.getEnv().addReporter(new CoverageReporter());
+      end_script
+    end
+  end
+
+  task :execute do
+    jasmine_node = base_path.join('node_modules/jasmine-node/bin/jasmine-node').to_s
+    spec = base_path.join('spec').to_s
+
+    unless system jasmine_node, spec
+      raise "jasmine-node tests failed. Coverage report not generated."
+    end
+  end
+
+  task :generate do
+    covershot = base_path.join('node_modules/covershot/bin/covershot').to_s
+    data_dir = base_path.join('covershot/data').to_s
+    format = 'html'
+
+    unless system covershot, data_dir, '-f', format
+      raise "Execution of covershot failed. Coverage report not generated."
+    end
+  end
+
+  task :done do
+    rm_rf base_path.join('tmp')
+    puts
+    puts
+    puts "Coverage report generated in: #{base_path.join("covershot/index.html")}"
+    puts
+  end
+end