Support es modules

index.esm.js

@@ -0,0 +1,21 @@
+/**
+ * cuid.js
+ * Collision-resistant UID generator for browsers and node.
+ * Sequential for fast db lookups and recency sorting.
+ * Safe for element IDs and server-side lookups.
+ *
+ * Extracted from CLCTR
+ *
+ * Copyright (c) Eric Elliott 2012
+ * MIT License
+ */
+
+import fingerprint from '#fingerprint';
+import createCuid from './lib/cuid';
+import isCuid from './lib/is-cuid';
+
+const cuid = createCuid(fingerprint);
+
+export { fingerprint, isCuid };
+
+export default cuid;

index.js

@@ -10,52 +10,9 @@
  * MIT License
  */
 
-var fingerprint = require('./lib/fingerprint.js');
-var isCuid = require('./lib/is-cuid.js');
-var pad = require('./lib/pad.js');
+import fingerprint from './lib/fingerprint';
+import createCuid from './lib/cuid';
 
-var c = 0,
-  blockSize = 4,
-  base = 36,
-  discreteValues = Math.pow(base, blockSize);
+const cuid = createCuid(fingerprint);
 
-function randomBlock () {
-  return pad((Math.random() *
-    discreteValues << 0)
-    .toString(base), blockSize);
-}
-
-function safeCounter () {
-  c = c < discreteValues ? c : 0;
-  c++; // this is not subliminal
-  return c - 1;
-}
-
-function cuid () {
-  // Starting with a lowercase letter makes
-  // it HTML element ID friendly.
-  var letter = 'c', // hard-coded allows for sequential access
-
-    // timestamp
-    // warning: this exposes the exact date and time
-    // that the uid was created.
-    timestamp = new Date().getTime().toString(base),
-
-    // Prevent same-machine collisions.
-    counter = pad(safeCounter().toString(base), blockSize),
-
-    // A few chars to generate distinct ids for different
-    // clients (so different computers are far less
-    // likely to generate the same id)
-    print = fingerprint(),
-
-    // Grab some more chars from Math.random()
-    random = randomBlock() + randomBlock();
-
-  return letter + timestamp + counter + print + random;
-}
-
-cuid.fingerprint = fingerprint;
-cuid.isCuid = isCuid;
-
-module.exports = cuid;
+export default cuid;

lib/cuid.js

@@ -0,0 +1,64 @@
+/**
+ * cuid.js
+ * Collision-resistant UID generator for browsers and node.
+ * Sequential for fast db lookups and recency sorting.
+ * Safe for element IDs and server-side lookups.
+ *
+ * Extracted from CLCTR
+ *
+ * Copyright (c) Eric Elliott 2012
+ * MIT License
+ */
+
+import isCuid from './is-cuid';
+import pad from './pad';
+
+export default function createCuid (fingerprint) {
+    const blockSize = 4,
+    base = 36,
+    discreteValues = Math.pow(base, blockSize);
+
+    let c = 0;
+
+    function randomBlock () {
+        return pad((Math.random() *
+        discreteValues << 0)
+        .toString(base), blockSize);
+    }
+
+    function safeCounter () {
+        c = c < discreteValues ? c : 0;
+        c++; // this is not subliminal
+        return c - 1;
+    }
+
+    function cuid () {
+        // Starting with a lowercase letter makes
+        // it HTML element ID friendly.
+        var letter = 'c', // hard-coded allows for sequential access
+
+        // timestamp
+        // warning: this exposes the exact date and time
+        // that the uid was created.
+        timestamp = new Date().getTime().toString(base),
+
+        // Prevent same-machine collisions.
+        counter = pad(safeCounter().toString(base), blockSize),
+
+        // A few chars to generate distinct ids for different
+        // clients (so different computers are far less
+        // likely to generate the same id)
+        print = fingerprint(),
+
+        // Grab some more chars from Math.random()
+        random = randomBlock() + randomBlock();
+
+        return letter + timestamp + counter + print + random;
+    }
+
+    cuid.fingerprint = fingerprint;
+    cuid.isCuid = isCuid;
+
+    return cuid;
+}
+

lib/fingerprint.browser.js

@@ -1,4 +1,4 @@
-var pad = require('./pad.js');
+import pad from './pad';
 
 var env = typeof window === 'object' ? window : self;
 var globalCount = 0;
@@ -10,6 +10,6 @@ var clientId = pad((mimeTypesLength +
   navigator.userAgent.length).toString(36) +
   globalCount.toString(36), 4);
 
-module.exports = function fingerprint () {
+export default function fingerprint () {
   return clientId;
-};
+}

lib/fingerprint.js

@@ -1,5 +1,5 @@
-var pad = require('./pad.js');
-var os = require('os');
+import pad from './pad';
+import os from 'os';
 
 function getHostname () {
   try {
@@ -30,6 +30,6 @@ var padding = 2,
       .toString(36),
     padding);
 
-module.exports = function fingerprint () {
+export default function fingerprint () {
   return pid + hostId;
-};
+}

lib/fingerprint.react-native.js

@@ -1,8 +1,8 @@
-var pad = require('./pad.js');
+import pad from './pad';
 
 var globalCount = Object.keys(global);
 var clientId = pad(globalCount.toString(36), 4);
 
-module.exports = function fingerprint () {
+export default function fingerprint () {
   return clientId;
-};
+}

lib/is-cuid.js

@@ -3,6 +3,6 @@
  * @param {unknown} value
  * @returns
  */
-module.exports = function isCuid (value) {
+export default function isCuid (value) {
     return typeof value === 'string' && (/^c[a-z0-9]{20,32}$/).test(value);
-};
+}

lib/pad.js

@@ -1,4 +1,4 @@
-module.exports = function pad (num, size) {
+export default function pad (num, size) {
   var s = '000000000' + num;
   return s.substr(s.length - size);
-};
+}

package.json

@@ -6,13 +6,29 @@
     "name": "Bugsnag",
     "url": "https://bugsnag.com"
   },
-  "main": "index.js",
+  "main": "dist/index.js",
   "types": "cuid.d.ts",
+  "exports": {
+    ".": {
+      "import": "./index.esm.js",
+      "require": "./dist/index.js"
+    },
+    "./lib/fingerprint": {
+      "browser": "./lib/fingerprint.browser.js",
+      "node": "./lib/fingerprint.js"
+    }
+  },
+  "imports": {
+    "#fingerprint": {
+      "browser": "./lib/fingerprint.browser.js",
+      "node": "./lib/fingerprint.js"
+    }
+  },
   "browser": {
-    "./lib/fingerprint.js": "./lib/fingerprint.browser.js"
+    "./dist/lib/fingerprint.js": "./dist/lib/fingerprint.browser.js"
   },
   "react-native": {
-    "./lib/fingerprint.js": "./lib/fingerprint.react-native.js"
+    "./dist/lib/fingerprint.js": "./dist/lib/fingerprint.react-native.js"
   },
   "keywords": [
     "id",
@@ -27,12 +43,13 @@
   },
   "files": [
     "lib",
+    "dist",
     "cuid.d.ts",
-    "index.js"
+    "index.esm.js"
   ],
   "license": "MIT",
   "devDependencies": {
-    "browserify": "17.0.0",
+    "@rollup/plugin-alias": "^5.1.1",
     "eslint": "^8.49",
     "jasmine": "^2.5.0",
     "jasmine-core": "^2.8.0",
@@ -41,12 +58,13 @@
     "karma-chrome-launcher": "^2.2.0",
     "karma-jasmine": "^1.1.1",
     "mkdirp": "^0.5.1",
-    "uglify-js": "^2.7.4",
+    "rollup": "^2.76.0",
     "watchify": "^4.0.0",
     "webworkify": "^1.4.0"
   },
   "scripts": {
-    "build": "mkdirp dist && browserify index.js -s cuid -o dist/cuid.js && uglifyjs dist/cuid.js -c -m -o dist/cuid.min.js",
+    "prebuild": "rm -rf dist",
+    "build": "rollup -c",
     "lint": "eslint index.js lib test",
     "test": "npm run lint && npm run test:server && npm run test:browser",
     "test:browser": "karma start test/karma.conf.js",

rollup.config.mjs

@@ -0,0 +1,31 @@
+const sharedOutput = {
+    format: 'cjs',
+    dir: 'dist',
+    preserveModules: true,
+    exports: 'default',
+    generatedCode: {
+        preset: 'es2015'
+    }
+};
+
+export default [
+    {
+        external: ['os'],
+        input: 'index.js',
+        output: sharedOutput
+    },
+    {
+        input: 'lib/fingerprint.browser.js',
+        output: {
+            ...sharedOutput,
+            dir: 'dist/lib'
+        }
+    },
+    {
+        input: 'lib/fingerprint.react-native.js',
+        output: {
+            ...sharedOutput,
+            dir: 'dist/lib'
+        }
+    }
+];