Make lib more "modern"

.browserslistrc

@@ -0,0 +1,2 @@
+> 0.25%
+not dead

bin/synth.js

@@ -9,7 +9,8 @@ try {
   const args = getArgs(process.argv);
 
   if (args.help || args.input === undefined) {
-    return console.log(fs.readFileSync(`${__dirname}/../man/help.txt`, {encoding: 'utf8'}));
+    console.log(fs.readFileSync(`${__dirname}/../man/help.txt`, {encoding: 'utf8'}));
+    process.exit();
   }
 
   if (args.verbose) {
@@ -32,6 +33,8 @@ try {
         return console.log('dry run complete');
       }
 
+      if (!wav) process.exit();
+
       if (args.verbose) {
         console.log('writing buffer...');
       }

bin/utils/args.js

@@ -1,19 +1,28 @@
 'use strict';
 
-function argumentToVerboseFlag(argument) {
-  const camelCase = /^[\w]|\B[A-Z]/g;
+const camelCase = /^[\w]|\B[A-Z]/g;
+const beginning = /^(.).*$/;
 
+/**
+ * @param {string} argument
+ */
+function argumentToVerboseFlag(argument) {
   return argument.replace(camelCase, (character, index) => `-${'-'.charAt(index)}${character.toLowerCase()}`);
 }
 
+/**
+ * @param {string} argument
+ */
 function argumentToConciseFlag(argument) {
-  const beginning = /^(.).*$/;
-
-  return argument.replace(beginning, (match, character) => `-${character}`);
+  return argument.replace(beginning, (_, character) => `-${character}`);
 }
 
-// utility function to convert
-// command-line arguments to object
+/**
+ * utility function to convert
+ * command-line arguments to object
+ * @param {Array<string>} argv
+ * @returns {{ help?: boolean; input?: string; verbose?: boolean; DryRun?: boolean; output?: string; }}
+ */
 module.exports = function getArguments(argv) {
   const argumentNames = [
     'input',

gulp/tasks/default.js

@@ -1,3 +1,37 @@
+const config = require('../config.json');
+
+const { pipeline } = require("stream");
 const gulp = require('gulp');
+const browserify = require('browserify');
+const babelify = require('babelify');
+const source = require('vinyl-source-stream');
+const buffer = require('vinyl-buffer');
+const uglify = require('gulp-uglify');
+const sourcemaps = require('gulp-sourcemaps');
+const gutil = require('gulp-util');
+
+gulp.task('default', cb => {
+	// set up the browserify instance on a task basis
+  let b = browserify({
+    entries: config.paths.entry,
+    debug: true,
+    standalone: config.names.glob,
+    transform: [
+      babelify.configure({
+        presets: ['@babel/preset-env'],
+        sourceMapsAbsolute: true,
+      }),
+    ],
+  });
 
-gulp.task('default', ['browserify']);
+	return pipeline([
+		b.bundle(),
+		source(config.names.app),
+		buffer(),
+		sourcemaps.init({loadMaps: true}),
+		uglify()
+			.on('error', gutil.log),
+		sourcemaps.write('./'),
+		gulp.dest(config.paths.dest)
+	], cb);
+});

index.d.ts

@@ -0,0 +1,3 @@
+export const WAV: typeof import("./src/wav");
+export const MIDIStream: typeof import("./src/midi");
+export const midiToWav: typeof import("./src/midi2wav");