feat(bundle): bundling the module similar to js-bson

BREAKING CHANGE: The default exported name for the module is now
EJSON, mirroring the js-bson module's exported BSON name.

Author: mbroadst

package-lock.json

@@ -2,20 +2,6 @@
   "name": "mongodb-extjson",
   "version": "4.0.0-rc1",
   "description": "MongoDB Extended JSON library",
-  "main": "index.js",
-  "browser": "dist/mongodb-extjson.js",
-  "scripts": {
-    "test": "npm run-script test-node && npm run-script test-browser",
-    "test-node": "mocha test/",
-    "test-browser": "karma start",
-    "docs": "jsdoc2md --heading-depth 3 --template etc/README.hbs --plugin dmd-clear --files lib/ext_json.js > README.md",
-    "coverage": "istanbul cover _mocha -- --recursive -t --ui tdd test/",
-    "lint": "eslint lib test",
-    "format": "prettier --print-width 100 --tab-width 2 --single-quote --write 'test/**/*.js' 'lib/**/*.js'",
-    "build": "rollup -c",
-    "prepublishOnly": "npm run build",
-    "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s"
-  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/mongodb-js/mongodb-extjson.git"
@@ -35,9 +21,28 @@
     "url": "https://github.com/mongodb-js/mongodb-extjson/issues"
   },
   "homepage": "https://github.com/mongodb-js/mongodb-extjson#readme",
+  "main": "lib/ext_json.js",
+  "module": "dist/mongodb-extjson.esm.js",
+  "browser": {
+    "./index.js": "./dist/mongodb-extjson.browser.umd.js",
+    "./dist/mongodb-extjson.esm.js": "./dist/mongodb-extjson.browser.esm.js"
+  },
+  "scripts": {
+    "test": "npm run-script test-node && npm run-script test-browser",
+    "test-node": "mocha test/",
+    "test-browser": "karma start",
+    "docs": "jsdoc2md --heading-depth 3 --template etc/README.hbs --plugin dmd-clear --files lib/ext_json.js > README.md",
+    "coverage": "istanbul cover _mocha -- --recursive -t --ui tdd test/",
+    "lint": "eslint lib test",
+    "format": "prettier --print-width 100 --tab-width 2 --single-quote --write 'test/**/*.js' 'lib/**/*.js'",
+    "build": "rollup -c",
+    "prepublishOnly": "npm run build",
+    "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s"
+  },
   "devDependencies": {
     "babel-core": "^6.26.0",
     "babel-preset-env": "^1.6.1",
+    "babel-plugin-external-helpers": "^6.22.0",
     "chai": "^4.1.2",
     "conventional-changelog-cli": "^1.3.5",
     "dmd-clear": "^0.1.2",

package.json

@@ -1,27 +1,97 @@
-import commonjs from 'rollup-plugin-commonjs';
-import nodeResolve from 'rollup-plugin-node-resolve';
-import babel from 'rollup-plugin-babel';
+'use strict';
 
-export default {
-  input: 'index.js',
-  output: {
-    file: 'dist/mongodb-extjson.js',
-    format: 'umd',
-    name: 'mongodb-extjson',
-  },
-  plugins: [
-    nodeResolve(),
-    commonjs(),
-    babel({
-      presets: [
-        [
-          'env',
-          {
-            modules: false
-          }
-        ]
+const pkg = require('./package.json');
+const commonjs = require('rollup-plugin-commonjs');
+const nodeBuiltins = require('rollup-plugin-node-builtins');
+const nodeResolve = require('rollup-plugin-node-resolve');
+const babel = require('rollup-plugin-babel');
+
+const input = 'lib/ext_json.js';
+const plugins = [
+  nodeResolve(),
+  commonjs(),
+  nodeBuiltins(),
+  babel({
+    plugins: ['external-helpers'],
+    presets: [
+      [
+        'env',
+        {
+          modules: false
+        }
       ]
-    })
-  ],
-  external: ['bson'],
-}
+    ]
+  })
+];
+
+const browserPlugins = [
+  nodeResolve({
+    browser: true,
+    preferBuiltins: false
+  }),
+  commonjs(),
+  nodeBuiltins(),
+  babel({
+    plugins: ['external-helpers'],
+    presets: [
+      [
+        'env',
+        {
+          modules: false
+        }
+      ]
+    ]
+  })
+];
+
+const external = Object.keys(pkg.dependencies || {});
+const defaultName = 'EJSON';
+
+module.exports = [
+  {
+    input,
+    output: {
+      file: 'dist/mongodb-extjson.esm.js',
+      format: 'es',
+      name: defaultName,
+      exports: 'named'
+    },
+    plugins,
+    external
+  },
+  {
+    input,
+    output: {
+      file: 'dist/mongodb-extjson.browser.umd.js',
+      format: 'umd',
+      name: defaultName,
+      exports: 'named',
+      globals: {
+        buffer: 'Buffer'
+      }
+    },
+    plugins: browserPlugins,
+    external
+  },
+  {
+    input,
+    output: {
+      file: 'dist/mongodb-extjson.browser.esm.js',
+      format: 'es',
+      name: defaultName,
+      exports: 'named'
+    },
+    plugins: browserPlugins,
+    external
+  },
+  {
+    input,
+    output: {
+      file: 'dist/mongodb-extjson.bundle.js',
+      format: 'iife',
+      name: defaultName,
+      exports: 'named'
+    },
+    plugins: browserPlugins
+  }
+];