Introduce processor

src/parse-opt.ts

@@ -0,0 +1,17 @@
+const nopt = require('nopt');
+
+export default (vector, index) => {
+	const parsed = nopt({
+		'only-processor': Boolean,
+		'only-server': Boolean
+	}, {
+		p: ['--only-processor'],
+		s: ['--only-server']
+	}, vector, index);
+
+	if (parsed['only-processor'] && parsed['only-server']) {
+		throw 'only-processor option and only-server option cannot be set at the same time';
+	}
+
+	return parsed;
+};