build: Configure rollup for crypto package build

packages/crypto/package.json

@@ -16,10 +16,11 @@
     ],
     "main": "dist/index",
     "module": "dist/index",
-    "browser": "dist/index",
+    "browser": "dist/index-browser",
     "types": "dist/index",
     "scripts": {
         "build": "yarn clean && tsc",
+        "build:rollup": "yarn clean && tsc && rollup -c",
         "build:watch": "yarn clean && yarn compile -w",
         "clean": "del dist",
         "compile": "../../node_modules/typescript/bin/tsc",
@@ -60,7 +61,12 @@
         "@types/node-forge": "^0.8.4",
         "@types/otplib": "^7.0.0",
         "@types/pluralize": "^0.0.29",
-        "@types/wif": "^2.0.1"
+        "@types/wif": "^2.0.1",
+        "rollup": "^1.17.0",
+        "rollup-plugin-terser": "^5.1.1",
+        "rollup-plugin-commonjs": "^10.0.1",
+        "rollup-plugin-json": "^4.0.0",
+        "rollup-plugin-node-resolve": "^5.2.0"
     },
     "publishConfig": {
         "access": "public"

packages/crypto/rollup.config.js

@@ -0,0 +1,47 @@
+import pkg from "./package.json";
+import { terser } from "rollup-plugin-terser";
+import commonjs from "rollup-plugin-commonjs";
+import nodeResolve from "rollup-plugin-node-resolve";
+import json from "rollup-plugin-json";
+
+export default {
+    input: "dist/index.js", // our source file
+    output: [
+        {
+            file: pkg.main,
+            format: "cjs"
+        },
+        {
+            file: pkg.module,
+            format: "es" // the preferred format
+        },
+        {
+            file: pkg.browser,
+            format: "iife",
+            name: "ArkCrypto" // the global which can be used in a browser
+        }
+    ],
+    external: [
+        ...Object.keys(pkg.dependencies || {})
+    ],
+    plugins: [
+        json({
+            // for tree-shaking, properties will be declared as
+            // variables, using either `var` or `const`
+            preferConst: true, // Default: false
+
+            // ignores indent and generates the smallest code
+            compact: true, // Default: false
+        }),
+        nodeResolve({
+            jsnext: true,
+            main: true
+        }),
+        commonjs({
+            namedExports: {
+                "dist/index.js": ["__moduleExports"]
+            }
+        }),
+        terser() // minifies generated bundles
+    ]
+};