1 files changed, 149 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/pause/frames/getLibraryFromUrl.js b/devtools/client/debugger/src/utils/pause/frames/getLibraryFromUrl.js
new file mode 100644
index 0000000000..232079e3ec
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+++ b/devtools/client/debugger/src/utils/pause/frames/getLibraryFromUrl.js
@@ -0,0 +1,149 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// @flow
+
+import type { Frame } from "../../../types";
+import { getFrameUrl } from "./getFrameUrl";
+
+const libraryMap = [
+  {
+    label: "Backbone",
+    pattern: /backbone/i,
+  },
+  {
+    label: "Babel",
+    pattern: /node_modules\/@babel/i,
+  },
+  {
+    label: "jQuery",
+    pattern: /jquery/i,
+  },
+  {
+    label: "Preact",
+    pattern: /preact/i,
+  },
+  {
+    label: "React",
+    pattern: /(node_modules\/(?:react(-dom)?(-dev)?\/))|(react(-dom)?(-dev)?(\.[a-z]+)*\.js$)/,
+  },
+  {
+    label: "Immutable",
+    pattern: /immutable/i,
+  },
+  {
+    label: "Webpack",
+    pattern: /webpack\/bootstrap/i,
+  },
+  {
+    label: "Express",
+    pattern: /node_modules\/express/,
+  },
+  {
+    label: "Pug",
+    pattern: /node_modules\/pug/,
+  },
+  {
+    label: "ExtJS",
+    pattern: /\/ext-all[\.\-]/,
+  },
+  {
+    label: "MobX",
+    pattern: /mobx/i,
+  },
+  {
+    label: "Underscore",
+    pattern: /underscore/i,
+  },
+  {
+    label: "Lodash",
+    pattern: /lodash/i,
+  },
+  {
+    label: "Ember",
+    pattern: /ember/i,
+  },
+  {
+    label: "Choo",
+    pattern: /choo/i,
+  },
+  {
+    label: "VueJS",
+    pattern: /vue(?:\.[a-z]+)*\.js/i,
+  },
+  {
+    label: "RxJS",
+    pattern: /rxjs/i,
+  },
+  {
+    label: "Angular",
+    pattern: /angular(?!.*\/app\/)/i,
+    contextPattern: /zone\.js/,
+  },
+  {
+    label: "Redux",
+    pattern: /redux/i,
+  },
+  {
+    label: "Dojo",
+    pattern: /dojo/i,
+  },
+  {
+    label: "Marko",
+    pattern: /marko/i,
+  },
+  {
+    label: "NuxtJS",
+    pattern: /[\._]nuxt/i,
+  },
+  {
+    label: "Aframe",
+    pattern: /aframe/i,
+  },
+  {
+    label: "NextJS",
+    pattern: /[\._]next/i,
+  },
+];
+
+export function getLibraryFromUrl(
+  frame: Frame,
+  callStack: Array<Frame> = []
+): ?string | void {
+  // @TODO each of these fns calls getFrameUrl, just call it once
+  // (assuming there's not more complex logic to identify a lib)
+  const frameUrl = getFrameUrl(frame);
+
+  // Let's first check if the frame match a defined pattern.
+  let match = libraryMap.find(o => o.pattern.test(frameUrl));
+  if (match) {
+    return match.label;
+  }
+
+  // If it does not, it might still be one of the case where the file is used
+  // by a library but the name has not enough specificity. In such case, we want
+  // to only return the library name if there are frames matching the library
+  // pattern in the callStack (e.g. `zone.js` is used by Angular, but the name
+  //  could be quite common and return false positive if evaluated alone. So we
+  // only return Angular if there are other frames matching Angular).
+  match = libraryMap.find(
+    o => o.contextPattern && o.contextPattern.test(frameUrl)
+  );
+  if (match) {
+    const contextMatch = callStack.some(f => {
+      const url = getFrameUrl(f);
+      if (!url) {
+        return false;
+      }
+
+      return libraryMap.some(o => o.pattern.test(url));
+    });
+
+    if (contextMatch) {
+      return match.label;
+    }
+  }
+
+  return null;
+}