chore(proxy-state-tree): create release build and test for bundle size similar to overmind

Similar to overmind build testing bundle size and removed dev warnings from build

Author: FWeinb

packages/node_modules/proxy-state-tree/package.json

@@ -1,40 +1,53 @@
 {
-	"name": "proxy-state-tree",
-	"version": "1.0.0-beta4",
-	"description": "An implementation of the Mobx/Vue state tracking approach, for library authors",
-	"main": "lib/index.js",
-	"module": "es/index.js",
-	"types": "lib/index.d.ts",
-	"scripts": {
-		"build": "npm run build:lib & npm run build:es",
-		"build:lib": "tsc --outDir lib --module commonjs",
-		"build:es": "tsc --outDir es --module es2015",
-		"clean": "rimraf es lib coverage",
-		"typecheck": "tsc --noEmit",
-    "test": "jest --runInBand",
+  "name": "proxy-state-tree",
+  "version": "1.0.0-beta4",
+  "description": "An implementation of the Mobx/Vue state tracking approach, for library authors",
+  "main": "lib/index.js",
+  "module": "es/index.js",
+  "types": "lib/index.d.ts",
+  "scripts": {
+    "build": "(npm run build:lib & npm run build:es) && npm run build:dist",
+    "build:lib": "tsc --outDir lib --module commonjs",
+    "build:es": "tsc --outDir es --module es2015",
+    "build:dist": "webpack --config webpack.config.js",
+    "clean": "rimraf es lib coverage",
+    "typecheck": "tsc --noEmit",
+    "test": "jest --runInBand && npm run test:size",
     "test:watch": "jest --watch --updateSnapshot --coverage false",
-		"prebuild": "npm run clean",
-		"postbuild": "rimraf {lib,es}/**/__tests__",
+    "test:size": "bundlesize",
+    "prebuild": "npm run clean",
+    "postbuild": "rimraf {lib,es}/**/__tests__",
     "posttest": "npm run typecheck"
-	},
-	"repository": {
-		"type": "git",
-		"url": "git+https://github.com/christianalfoni/proxy-state-tree.git"
-	},
-	"keywords": [
-		"state",
-		"proxy",
-		"mobx",
-		"vue",
-		"store"
-	],
-	"author": "Christian Alfoni",
-	"license": "MIT",
-	"bugs": {
-		"url": "https://github.com/christianalfoni/proxy-state-tree/issues"
-	},
-	"homepage": "https://github.com/christianalfoni/proxy-state-tree#readme",
-	"dependencies": {
-		"is-plain-obj": "^1.1.0"
-	}
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/christianalfoni/proxy-state-tree.git"
+  },
+  "keywords": [
+    "state",
+    "proxy",
+    "mobx",
+    "vue",
+    "store"
+  ],
+  "author": "Christian Alfoni",
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/christianalfoni/proxy-state-tree/issues"
+  },
+  "homepage": "https://github.com/christianalfoni/proxy-state-tree#readme",
+  "dependencies": {
+    "is-plain-obj": "^1.1.0"
+  },
+  "devDependencies": {
+    "bundlesize": "^0.17.2",
+    "terser-webpack-plugin": "^1.3.0",
+    "webpack": "^4.35.0"
+  },
+  "bundlesize": [
+    {
+      "path": "./dist/proxy-state-tree.min.js",
+      "maxSize": "3 kB"
+    }
+  ]
 }

packages/node_modules/proxy-state-tree/webpack.config.js

@@ -0,0 +1,35 @@
+const path = require('path')
+const TerserPlugin = require('terser-webpack-plugin')
+
+module.exports = {
+  mode: 'production',
+  entry: path.resolve('./es/index.js'),
+  output: {
+    path: path.resolve('dist'),
+    filename: 'proxy-state-tree.min.js',
+  },
+  optimization: {
+    minimizer: [
+      new TerserPlugin({
+        test: /\.js(\?.*)?$/i,
+        parallel: true,
+        sourceMap: true,
+        terserOptions: {
+          module: true,
+        },
+      }),
+    ],
+  },
+  module: {
+    rules: [
+      {
+        test: /\.js$/,
+        loader: 'babel-loader',
+        include: path.resolve('src'),
+        options: {
+          presets: ['@babel/preset-env'],
+        },
+      },
+    ],
+  },
+}