Add and configure Webpack as build tool

.babelrc

@@ -0,0 +1,3 @@
+{
+  "plugins": ["@babel/plugin-proposal-class-properties"]
+}

.gitignore

@@ -8,3 +8,7 @@ lib/
 # bolt
 .bolt-work/
 
+# webpack
+/build/
+/dist/
+

package.json

@@ -4,10 +4,11 @@
   "description": "A programming language for rapid prototyping",
   "main": "lib/index.js",
   "bin": {
-    "bolt": "lib/bin/bolt.js",
+    "bolt": "build/bin/bolt.js"
-    "bolt-treegen": "lib/bin/bolt-treegen.js"
   },
   "scripts": {
+    "watch": "webpack --watch --config webpack.dev.js",
+    "prepare": "webpack --config webpack.dev.js",
     "test": "mocha lib/test"
   },
   "author": "Sam Vervaeck <vervaeck.sam@skynet.be>",
@@ -36,9 +37,17 @@
     "yargs": "^15.3.1"
   },
   "devDependencies": {
+    "@babel/core": "^7.10.1",
+    "@babel/plugin-proposal-class-properties": "^7.10.1",
     "@types/chai": "^4.2.11",
     "@types/mocha": "^7.0.2",
+    "babel-loader": "^8.1.0",
     "chai": "^4.2.0",
-    "mocha": "^7.2.0"
+    "concurrently": "^5.2.0",
+    "mocha": "^7.2.0",
+    "ts-loader": "^7.0.5",
+    "typescript": "^3.9.3",
+    "webpack": "^4.43.0",
+    "webpack-cli": "^3.3.11"
   }
 }

src/bin/bolt.ts

@@ -1,4 +1,3 @@
-#!/usr/bin/env node
 
 import "reflect-metadata"
 import "source-map-support/register"

webpack.dev.js

@@ -0,0 +1,27 @@
+
+const webpack = require("webpack");
+const path = require("path");
+
+module.exports = {
+  target: 'node',
+  mode: 'development',
+  entry: './src/bin/bolt.ts',
+  output: {
+    filename: 'bin/bolt.js',
+    path: path.resolve(__dirname, 'build'),
+  },
+  resolve: {
+    extensions: [".ts", ".js"],
+  },
+  plugins: [
+    new webpack.BannerPlugin({ banner: '#!/usr/bin/env node', raw: true }),
+  ],
+  devtool: 'source-map',
+  module: {
+    rules: [
+      { test: /\.ts$/, loader: "ts-loader", options: { transpileOnly: true } },
+      { test: /\.m?js$/, exclude: /node_modules/, loader: 'babel-loader' },
+    ]
+  }
+};
+