From f6591260e26fd62464346589dc5789f01d995dd0 Mon Sep 17 00:00:00 2001
From: Ryan Toronto <ryanto@gmail.com>
Date: Tue, 3 Mar 2020 15:49:54 -0500
Subject: [PATCH] Vendor whatwg-fetch using rollup+devDep

---
 iife-wrapper.js  | 23 +++++++++-------------
 package.json     | 12 ++++++------
 rollup.config.js | 50 ++++++++++++++++++++++++++++++++----------------
 yarn.lock        |  5 +++++
 4 files changed, 54 insertions(+), 36 deletions(-)

diff --git a/iife-wrapper.js b/iife-wrapper.js
index bd3730d..47675f2 100644
--- a/iife-wrapper.js
+++ b/iife-wrapper.js
@@ -4,29 +4,24 @@ var Pretender = (function(self) {
   }
 
   var appearsBrowserified =
-    typeof self !== 'undefined' &&
-    typeof process !== 'undefined' &&
-    (Object.prototype.toString.call(process) === '[object Object]' ||
-      Object.prototype.toString.call(process) === '[object process]');
+    typeof self !== "undefined" &&
+    typeof process !== "undefined" &&
+    (Object.prototype.toString.call(process) === "[object Object]" ||
+      Object.prototype.toString.call(process) === "[object process]");
 
   var RouteRecognizer = appearsBrowserified
-    ? getModuleDefault(require('route-recognizer'))
+    ? getModuleDefault(require("route-recognizer"))
     : self.RouteRecognizer;
   var FakeXMLHttpRequest = appearsBrowserified
-    ? getModuleDefault(require('fake-xml-http-request'))
+    ? getModuleDefault(require("fake-xml-http-request"))
     : self.FakeXMLHttpRequest;
 
-  // fetch related ponyfills
-  var FakeFetch = appearsBrowserified
-    ? getModuleDefault(require('whatwg-fetch'))
-    : self.WHATWGFetch;
-
   /*==ROLLUP_CONTENT==*/
 
-  if (typeof module === 'object') {
+  if (typeof module === "object") {
     module.exports = Pretender;
-  } else if (typeof define !== 'undefined') {
-    define('pretender', [], function() {
+  } else if (typeof define !== "undefined") {
+    define("pretender", [], function() {
       return Pretender;
     });
   }
diff --git a/package.json b/package.json
index 20e25ef..b32d07d 100644
--- a/package.json
+++ b/package.json
@@ -28,9 +28,9 @@
   "devDependencies": {
     "@rollup/plugin-commonjs": "^11.0.2",
     "@rollup/plugin-node-resolve": "^7.1.1",
-    "rollup-plugin-typescript": "^1.0.0",
     "abortcontroller-polyfill": "^1.1.9",
     "coveralls": "^3.0.9",
+    "dedent": "^0.7.0",
     "es6-promise": "^4.0.5",
     "eslint": "^5.12.0",
     "jshint": "^2.8.0",
@@ -45,16 +45,17 @@
     "release-it": "^12.4.3",
     "release-it-lerna-changelog": "^1.0.3",
     "rollup": "^1.1.2",
+    "rollup-plugin-typescript": "^1.0.0",
     "sinon": "^9.0.0",
     "tslib": "^1.9.3",
     "typescript": "~3.1.1",
     "typescript-eslint-parser": "^21.0.2",
-    "url-parse": "^1.4.7"
+    "url-parse": "^1.4.7",
+    "whatwg-fetch": "^3.0.0"
   },
   "dependencies": {
     "fake-xml-http-request": "^2.1.1",
-    "route-recognizer": "^0.3.3",
-    "whatwg-fetch": "^3.0.0"
+    "route-recognizer": "^0.3.3"
   },
   "files": [
     "dist",
@@ -65,8 +66,7 @@
       "pretender": {
         "deps": [
           "route-recognizer",
-          "fake-xml-http-request",
-          "whatwg-fetch"
+          "fake-xml-http-request"
         ],
         "exports": "Pretender"
       }
diff --git a/rollup.config.js b/rollup.config.js
index 5485487..5387be2 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,34 +1,52 @@
-const commonjs = require('@rollup/plugin-commonjs');
-const resolve = require('@rollup/plugin-node-resolve');
-const typescript = require('rollup-plugin-typescript');
-const pkg = require('./package.json');
-const fs = require('fs');
+const commonjs = require("@rollup/plugin-commonjs");
+const resolve = require("@rollup/plugin-node-resolve");
+const typescript = require("rollup-plugin-typescript");
+const pkg = require("./package.json");
+const fs = require("fs");
+const dedent = require("dedent");
 const globals = {
-  'whatwg-fetch': 'FakeFetch',
-  'fake-xml-http-request': 'FakeXMLHttpRequest',
-  'route-recognizer': 'RouteRecognizer',
-  'url-parse': 'urlParse'
+  "fake-xml-http-request": "FakeXMLHttpRequest",
+  "route-recognizer": "RouteRecognizer",
+  "url-parse": "urlParse"
 };
 
-const rollupTemplate = fs.readFileSync('./iife-wrapper.js').toString();
-const [banner, footer] = rollupTemplate.split('/*==ROLLUP_CONTENT==*/');
+const rollupTemplate = fs.readFileSync("./iife-wrapper.js").toString();
+const [banner, footer] = rollupTemplate.split("/*==ROLLUP_CONTENT==*/");
+
+let importableInNode = {
+  transform(code, id) {
+    let before = dedent`
+      if (typeof global !== "undefined" && typeof global.self === 'undefined') {
+        global.self = {};
+        global.__pretenderNodePolyfill = true;
+      }`;
+
+    let after = dedent`
+      if (typeof global !== "undefined" && global.__pretenderNodePolyfill) {
+        delete global.self;
+        delete global.__pretenderNodePolyfill;
+      }`;
+
+    return id.match(/whatwg-fetch/) ? `${before}\n${code}\n${after}` : code;
+  }
+};
 
 module.exports = {
-  input: 'src/index.ts',
+  input: "src/index.ts",
   external: Object.keys(pkg.dependencies),
   output: [
     {
-      name: 'Pretender',
+      name: "Pretender",
       file: pkg.main,
-      format: 'iife',
+      format: "iife",
       globals,
       banner,
       footer
     },
     {
       file: pkg.module,
-      format: 'es'
+      format: "es"
     }
   ],
-  plugins: [commonjs(), resolve(), typescript()]
+  plugins: [commonjs(), resolve(), importableInNode, typescript()]
 };
diff --git a/yarn.lock b/yarn.lock
index 815b00f..5e2a2d2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1351,6 +1351,11 @@ decompress-response@^3.3.0:
   dependencies:
     mimic-response "^1.0.0"
 
+dedent@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
+  integrity sha1-JJXduvbrh0q7Dhvp3yLS5aVEMmw=
+
 deep-extend@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/deep-extend/-/deep-extend-0.6.0.tgz#c4fa7c95404a17a9c3e8ca7e1537312b736330ac"