Build - refactor for bundle factoring and swappable runtime (#11080)

* wip * build - breakout sentry-install bundle * deps - move new build sys deps to published versions * chore: lint fix * clean - remove unused file * clean - remove unsused package script * lavamoat - update build system policy * build - render html to all platforms * development - improve sourcemap debugger output * deps - update lavapack * lint - fix * deps - update lavapack for bugfix * deps - update lavapack for bugfix * deps - bump lavapack for line ending normalization * sourcemap explorer - disable boundary validation * ci - reset normal ci flow * build - re-enable minification on prod * build - remove noisy log about html dest * build - update terser and remove gulp wrapper for sourcemap fix * Revert "sourcemap explorer - disable boundary validation" This reverts commit 94112209ed880a6ebf4ee2ded411e59db6908162. * build - reenable react-devtools in dev mode * wip * build - breakout sentry-install bundle * deps - move new build sys deps to published versions * chore: lint fix * clean - remove unused file * clean - remove unsused package script * lavamoat - update build system policy * build - render html to all platforms * development - improve sourcemap debugger output * deps - update lavapack * lint - fix * deps - update lavapack for bugfix * deps - update lavapack for bugfix * deps - bump lavapack for line ending normalization * sourcemap explorer - disable boundary validation * ci - reset normal ci flow * build - re-enable minification on prod * build - remove noisy log about html dest * build - update terser and remove gulp wrapper for sourcemap fix * Revert "sourcemap explorer - disable boundary validation" This reverts commit 94112209ed880a6ebf4ee2ded411e59db6908162. * build - reenable react-devtools in dev mode * Updating lockfile * lint fix * build/dev - patch watchifys incompatible binary stats output * ui - add comment about conditional import * build - improve comment * Update development/stream-flat-map.js Co-authored-by: Brad Decker <git@braddecker.dev> * Outputting all bundle file links (metamaskbot) Co-authored-by: ryanml <ryanlanese@gmail.com> Co-authored-by: Brad Decker <git@braddecker.dev>
2024-11-22 01:47:00 +01:00 · 2021-07-15 10:59:34 -07:00 · 2021-07-15 10:59:34 -07:00 · 9f4820ee98
commit 9f4820ee98
parent 4aab4887d5
23 changed files with 586 additions and 472 deletions
--- a/.eslintrc.js
+++ b/.eslintrc.js
@ -154,7 +154,7 @@ module.exports = {
        'babel.config.js',
        'nyc.config.js',
        'stylelint.config.js',
-        'app/scripts/runLockdown.js',
+        'app/scripts/lockdown-run.js',
        'development/**/*.js',
        'test/e2e/**/*.js',
        'test/lib/wait-until-called.js',
--- a/app/background.html
+++ b/app/background.html
@ -5,11 +5,13 @@
  </head>
  <body>
    <script src="./globalthis.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./initSentry.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./lockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./runLockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./bg-libs.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./background.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./sentry-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-run.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./runtime-cjs.js" type="text/javascript" charset="utf-8"></script>
+    {{@each(it.jsBundles) => val}}
+    <script src="{{val}}" type="text/javascript" charset="utf-8"></script>
+    {{/each}}
    <script src="./chromereload.js" type="text/javascript" charset="utf-8"></script>
  </body>
 </html>
--- a/app/home.html
+++ b/app/home.html
@ -11,10 +11,12 @@
    <div id="app-content"></div>
    <div id="popover-content"></div>
    <script src="./globalthis.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./initSentry.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./lockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./runLockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./ui-libs.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./ui.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./sentry-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-run.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./runtime-cjs.js" type="text/javascript" charset="utf-8"></script>
+    {{@each(it.jsBundles) => val}}
+    <script src="{{val}}" type="text/javascript" charset="utf-8"></script>
+    {{/each}}
  </body>
 </html>
--- a/app/manifest/_base.json
+++ b/app/manifest/_base.json
@ -33,8 +33,8 @@
      "js": [
        "disable-console.js",
        "globalthis.js",
-        "lockdown.js",
-        "runLockdown.js",
+        "lockdown-install.js",
+        "lockdown-run.js",
        "contentscript.js"
      ],
      "run_at": "document_start",
--- a/app/notification.html
+++ b/app/notification.html
@ -34,10 +34,12 @@
    </div>
    <div id="popover-content"></div>
    <script src="./globalthis.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./initSentry.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./lockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./runLockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./ui-libs.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./ui.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./sentry-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-run.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./runtime-cjs.js" type="text/javascript" charset="utf-8"></script>
+    {{@each(it.jsBundles) => val}}
+    <script src="{{val}}" type="text/javascript" charset="utf-8"></script>
+    {{/each}}
  </body>
 </html>
--- a/app/phishing.html
+++ b/app/phishing.html
@ -3,8 +3,8 @@
  <head>
    <title>Ethereum Phishing Detection - MetaMask</title>
    <script src="./globalthis.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./lockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./runLockdown.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-run.js" type="text/javascript" charset="utf-8"></script>
    <script src="./phishing-detect.js"></script>
    <link rel="stylesheet" type="text/css" href="./index.css" title="ltr">
    <link rel="stylesheet" type="text/css" href="./index-rtl.css" title="rtl" disabled>
--- a/app/popup.html
+++ b/app/popup.html
@ -11,10 +11,12 @@
    <div id="app-content"></div>
    <div id="popover-content"></div>
    <script src="./globalthis.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./initSentry.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./lockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./runLockdown.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./ui-libs.js" type="text/javascript" charset="utf-8"></script>
-    <script src="./ui.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./sentry-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-install.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./lockdown-run.js" type="text/javascript" charset="utf-8"></script>
+    <script src="./runtime-cjs.js" type="text/javascript" charset="utf-8"></script>
+    {{@each(it.jsBundles) => val}}
+    <script src="{{val}}" type="text/javascript" charset="utf-8"></script>
+    {{/each}}
  </body>
 </html>
--- a/app/scripts/lockdown-run.js
+++ b/app/scripts/lockdown-run.js
@ -14,7 +14,7 @@ try {
  // caught and logged here so that the contentscript still gets injected.
  // This affects Firefox v56 and Waterfox Classic
  console.error('Lockdown failed:', error);
-  if (window.sentry && window.sentry.captureException) {
-    window.sentry.captureException(error);
+  if (globalThis.sentry && globalThis.sentry.captureException) {
+    globalThis.sentry.captureException(error);
  }
 }
--- a/app/scripts/sentry-install.js
+++ b/app/scripts/sentry-install.js
--- a/app/scripts/ui.js
+++ b/app/scripts/ui.js
@ -2,6 +2,9 @@
 import 'abortcontroller-polyfill/dist/polyfill-patch-fetch';
 import '@formatjs/intl-relativetimeformat/polyfill';

+// dev only, "react-devtools" import is skipped in prod builds
+import 'react-devtools';
+
 import PortStream from 'extension-port-stream';
 import extension from 'extensionizer';

--- a/development/build/scripts.js
+++ b/development/build/scripts.js
@ -1,19 +1,29 @@
+const { callbackify } = require('util');
+const path = require('path');
+const { writeFileSync, readFileSync } = require('fs');
 const EventEmitter = require('events');
 const gulp = require('gulp');
 const watch = require('gulp-watch');
 const source = require('vinyl-source-stream');
 const buffer = require('vinyl-buffer');
 const log = require('fancy-log');
-const watchify = require('watchify');
 const browserify = require('browserify');
-const envify = require('loose-envify/custom');
-const sourcemaps = require('gulp-sourcemaps');
-const terser = require('gulp-terser-js');
+const watchify = require('watchify');
 const babelify = require('babelify');
 const brfs = require('brfs');
+const envify = require('loose-envify/custom');
+const sourcemaps = require('gulp-sourcemaps');
+const applySourceMap = require('vinyl-sourcemaps-apply');
 const pify = require('pify');
+const through = require('through2');
 const endOfStream = pify(require('end-of-stream'));
 const labeledStreamSplicer = require('labeled-stream-splicer').obj;
+const wrapInStream = require('pumpify').obj;
+const Sqrl = require('squirrelly');
+const lavaPack = require('@lavamoat/lavapack');
+const terser = require('terser');
+
+const bifyModuleGroups = require('bify-module-groups');

 const metamaskrc = require('rc')('metamask', {
  INFURA_PROJECT_ID: process.env.INFURA_PROJECT_ID,
@ -25,9 +35,8 @@ const metamaskrc = require('rc')('metamask', {
    'https://f59f3dd640d2429d9d0e2445a87ea8e1@sentry.io/273496',
 });

-const { version } = require('../../package.json');
-
-const packageJSON = require('../../package.json');
+const { streamFlatMap } = require('../stream-flat-map.js');
+const baseManifest = require('../../app/manifest/_base.json');
 const {
  createTask,
  composeParallel,
@ -37,17 +46,6 @@ const {

 module.exports = createScriptTasks;

-const dependencies = Object.keys(
-  (packageJSON && packageJSON.dependencies) || {},
-);
-const materialUIDependencies = ['@material-ui/core'];
-const reactDepenendencies = dependencies.filter((dep) => dep.match(/react/u));
-
-const externalDependenciesMap = {
-  background: ['3box', '@ethereumjs/common', 'unicode-confusables'],
-  ui: [...materialUIDependencies, ...reactDepenendencies],
-};
-
 function createScriptTasks({ browserPlatforms, livereload }) {
  // internal tasks
  const core = {
@ -69,72 +67,43 @@ function createScriptTasks({ browserPlatforms, livereload }) {
    // production
    prod: createTasksForBuildJsExtension({ taskPrefix: 'scripts:core:prod' }),
  };
-  const deps = {
-    background: createTasksForBuildJsDeps({
-      label: 'bg-libs',
-      key: 'background',
-    }),
-    ui: createTasksForBuildJsDeps({ label: 'ui-libs', key: 'ui' }),
-  };

  // high level tasks

-  const prod = composeParallel(deps.background, deps.ui, core.prod);
+  const { dev, test, testDev, prod } = core;
+  return { dev, test, testDev, prod };

-  const { dev, testDev } = core;
-
-  const test = composeParallel(deps.background, deps.ui, core.test);
-
-  return { prod, dev, testDev, test };
-
-  function createTasksForBuildJsDeps({ key, label }) {
-    return createTask(
-      `scripts:deps:${key}`,
-      createNormalBundle({
-        label,
-        destFilepath: `${label}.js`,
-        modulesToExpose: externalDependenciesMap[key],
-        devMode: false,
+  function createTasksForBuildJsExtension({ taskPrefix, devMode, testing }) {
+    const standardEntryPoints = ['background', 'ui', 'phishing-detect'];
+    const standardSubtask = createTask(
+      `${taskPrefix}:standardEntryPoints`,
+      createFactoredBuild({
+        entryFiles: standardEntryPoints.map(
+          (label) => `./app/scripts/${label}.js`,
+        ),
+        devMode,
+        testing,
        browserPlatforms,
      }),
    );
-  }
-
-  function createTasksForBuildJsExtension({ taskPrefix, devMode, testing }) {
-    const standardBundles = [
-      'background',
-      'ui',
-      'phishing-detect',
-      'initSentry',
-    ];
-
-    const standardSubtasks = standardBundles.map((label) => {
-      let extraEntries;
-      if (devMode && label === 'ui') {
-        extraEntries = ['./development/require-react-devtools.js'];
-      }
-      return createTask(
-        `${taskPrefix}:${label}`,
-        createBundleTaskForBuildJsExtensionNormal({
-          label,
-          devMode,
-          testing,
-          extraEntries,
-        }),
-      );
-    });

    // inpage must be built before contentscript
    // because inpage bundle result is included inside contentscript
    const contentscriptSubtask = createTask(
      `${taskPrefix}:contentscript`,
-      createTaskForBuildJsExtensionContentscript({ devMode, testing }),
+      createTaskForBundleContentscript({ devMode, testing }),
    );

    // this can run whenever
    const disableConsoleSubtask = createTask(
      `${taskPrefix}:disable-console`,
-      createTaskForBuildJsExtensionDisableConsole({ devMode }),
+      createTaskForBundleDisableConsole({ devMode }),
+    );
+
+    // this can run whenever
+    const installSentrySubtask = createTask(
+      `${taskPrefix}:sentry`,
+      createTaskForBundleSentry({ devMode }),
    );

    // task for initiating browser livereload
@ -155,36 +124,16 @@ function createScriptTasks({ browserPlatforms, livereload }) {

    // make each bundle run in a separate process
    const allSubtasks = [
-      ...standardSubtasks,
+      standardSubtask,
      contentscriptSubtask,
      disableConsoleSubtask,
+      installSentrySubtask,
    ].map((subtask) => runInChildProcess(subtask));
-    // const allSubtasks = [...standardSubtasks, contentscriptSubtask].map(subtask => (subtask))
    // make a parent task that runs each task in a child thread
    return composeParallel(initiateLiveReload, ...allSubtasks);
  }

-  function createBundleTaskForBuildJsExtensionNormal({
-    label,
-    devMode,
-    testing,
-    extraEntries,
-  }) {
-    return createNormalBundle({
-      label,
-      entryFilepath: `./app/scripts/${label}.js`,
-      destFilepath: `${label}.js`,
-      extraEntries,
-      externalDependencies: devMode
-        ? undefined
-        : externalDependenciesMap[label],
-      devMode,
-      testing,
-      browserPlatforms,
-    });
-  }
-
-  function createTaskForBuildJsExtensionDisableConsole({ devMode }) {
+  function createTaskForBundleDisableConsole({ devMode }) {
    const label = 'disable-console';
    return createNormalBundle({
      label,
@ -195,7 +144,19 @@ function createScriptTasks({ browserPlatforms, livereload }) {
    });
  }

-  function createTaskForBuildJsExtensionContentscript({ devMode, testing }) {
+  function createTaskForBundleSentry({ devMode }) {
+    const label = 'sentry-install';
+    return createNormalBundle({
+      label,
+      entryFilepath: `./app/scripts/${label}.js`,
+      destFilepath: `${label}.js`,
+      devMode,
+      browserPlatforms,
+    });
+  }
+
+  // the "contentscript" bundle contains the "inpage" bundle
+  function createTaskForBundleContentscript({ devMode, testing }) {
    const inpage = 'inpage';
    const contentscript = 'contentscript';
    return composeSeries(
@ -203,9 +164,6 @@ function createScriptTasks({ browserPlatforms, livereload }) {
        label: inpage,
        entryFilepath: `./app/scripts/${inpage}.js`,
        destFilepath: `${inpage}.js`,
-        externalDependencies: devMode
-          ? undefined
-          : externalDependenciesMap[inpage],
        devMode,
        testing,
        browserPlatforms,
@ -214,9 +172,6 @@ function createScriptTasks({ browserPlatforms, livereload }) {
        label: contentscript,
        entryFilepath: `./app/scripts/${contentscript}.js`,
        destFilepath: `${contentscript}.js`,
-        externalDependencies: devMode
-          ? undefined
-          : externalDependenciesMap[contentscript],
        devMode,
        testing,
        browserPlatforms,
@ -225,12 +180,8 @@ function createScriptTasks({ browserPlatforms, livereload }) {
  }
 }

-function createNormalBundle({
-  destFilepath,
-  entryFilepath,
-  extraEntries = [],
-  modulesToExpose,
-  externalDependencies,
+function createFactoredBuild({
+  entryFiles,
  devMode,
  testing,
  browserPlatforms,
@ -240,10 +191,126 @@ function createNormalBundle({
    const buildConfiguration = createBuildConfiguration();
    const { bundlerOpts, events } = buildConfiguration;

+    // devMode options
+    const reloadOnChange = Boolean(devMode);
+    const minify = Boolean(devMode) === false;
+
    const envVars = getEnvironmentVariables({ devMode, testing });
    setupBundlerDefaults(buildConfiguration, {
      devMode,
      envVars,
+      reloadOnChange,
+      minify,
+    });
+
+    // set bundle entries
+    bundlerOpts.entries = [...entryFiles];
+
+    // setup bundle factoring with bify-module-groups plugin
+    Object.assign(bundlerOpts, bifyModuleGroups.plugin.args);
+    bundlerOpts.plugin = [...bundlerOpts.plugin, [bifyModuleGroups.plugin]];
+
+    // instrument pipeline
+    let sizeGroupMap;
+    events.on('configurePipeline', ({ pipeline }) => {
+      // to be populated by the group-by-size transform
+      sizeGroupMap = new Map();
+      pipeline.get('groups').unshift(
+        // factor modules
+        bifyModuleGroups.groupByFactor({
+          entryFileToLabel(filepath) {
+            return path.parse(filepath).name;
+          },
+        }),
+        // cap files at 2 mb
+        bifyModuleGroups.groupBySize({
+          sizeLimit: 2e6,
+          groupingMap: sizeGroupMap,
+        }),
+      );
+      pipeline.get('vinyl').unshift(
+        // convert each module group into a stream with a single vinyl file
+        streamFlatMap((moduleGroup) => {
+          const filename = `${moduleGroup.label}.js`;
+          const childStream = wrapInStream(
+            moduleGroup.stream,
+            lavaPack({ raw: true, hasExports: true, includePrelude: false }),
+            source(filename),
+          );
+          return childStream;
+        }),
+        buffer(),
+      );
+      // setup bundle destination
+      browserPlatforms.forEach((platform) => {
+        const dest = `./dist/${platform}/`;
+        pipeline.get('dest').push(gulp.dest(dest));
+      });
+    });
+
+    // wait for bundle completion for postprocessing
+    events.on('bundleDone', () => {
+      const commonSet = sizeGroupMap.get('common');
+      // create entry points for each file
+      for (const [groupLabel, groupSet] of sizeGroupMap.entries()) {
+        // skip "common" group, they are added tp all other groups
+        if (groupSet === commonSet) continue;
+
+        switch (groupLabel) {
+          case 'ui': {
+            renderHtmlFile('popup', groupSet, commonSet, browserPlatforms);
+            renderHtmlFile(
+              'notification',
+              groupSet,
+              commonSet,
+              browserPlatforms,
+            );
+            renderHtmlFile('home', groupSet, commonSet, browserPlatforms);
+            break;
+          }
+          case 'phishing-detect': {
+            renderHtmlFile('phishing', groupSet, commonSet, browserPlatforms);
+            break;
+          }
+          case 'background': {
+            renderHtmlFile('background', groupSet, commonSet, browserPlatforms);
+            break;
+          }
+          default: {
+            throw new Error(`buildsys - unknown groupLabel "${groupLabel}"`);
+          }
+        }
+      }
+    });
+
+    await bundleIt(buildConfiguration);
+  };
+}
+
+function createNormalBundle({
+  destFilepath,
+  entryFilepath,
+  extraEntries = [],
+  modulesToExpose,
+  devMode,
+  testing,
+  browserPlatforms,
+}) {
+  return async function () {
+    // create bundler setup and apply defaults
+    const buildConfiguration = createBuildConfiguration();
+    const { bundlerOpts, events } = buildConfiguration;
+
+    // devMode options
+    const reloadOnChange = Boolean(devMode);
+    const minify = Boolean(devMode) === false;
+
+    const envVars = getEnvironmentVariables({ devMode, testing });
+    setupBundlerDefaults(buildConfiguration, {
+      devMode,
+      envVars,
+      reloadOnChange,
+      minify,
    });

    // set bundle entries
@ -256,14 +323,6 @@ function createNormalBundle({
      bundlerOpts.require = bundlerOpts.require.concat(modulesToExpose);
    }

-    if (externalDependencies) {
-      // there doesnt seem to be a standard bify option for this
-      // so we'll put it here but manually call it after bundle
-      bundlerOpts.manualExternal = bundlerOpts.manualExternal.concat(
-        externalDependencies,
-      );
-    }
-
    // instrument pipeline
    events.on('configurePipeline', ({ pipeline }) => {
      // convert bundle stream to gulp vinyl stream
@ -288,17 +347,18 @@ function createBuildConfiguration() {
    transform: [],
    plugin: [],
    require: [],
-    // not a standard bify option
+    // non-standard bify options
    manualExternal: [],
+    manualIgnore: [],
  };
  return { bundlerOpts, events };
 }

-function setupBundlerDefaults(buildConfiguration, { devMode, envVars }) {
+function setupBundlerDefaults(
+  buildConfiguration,
+  { devMode, envVars, reloadOnChange, minify },
+) {
  const { bundlerOpts } = buildConfiguration;
-  // devMode options
-  const reloadOnChange = Boolean(devMode);
-  const minify = Boolean(devMode) === false;

  Object.assign(bundlerOpts, {
    // source transforms
@ -314,6 +374,11 @@ function setupBundlerDefaults(buildConfiguration, { devMode, envVars }) {
    debug: true,
  });

+  // ensure react-devtools are not included in non-dev builds
+  if (!devMode) {
+    bundlerOpts.manualIgnore.push('react-devtools');
+  }
+
  // inject environment variables via node-style `process.env`
  if (envVars) {
    bundlerOpts.transform.push([envify(envVars), { global: true }]);
@ -351,17 +416,33 @@ function setupReloadOnChange({ bundlerOpts, events }) {
 }

 function setupMinification(buildConfiguration) {
+  const minifyOpts = {
+    mangle: {
+      reserved: ['MetamaskInpageProvider'],
+    },
+  };
  const { events } = buildConfiguration;
  events.on('configurePipeline', ({ pipeline }) => {
    pipeline.get('minify').push(
-      terser({
-        mangle: {
-          reserved: ['MetamaskInpageProvider'],
-        },
-        sourceMap: {
-          content: true,
-        },
-      }),
+      // this is the "gulp-terser-js" wrapper around the latest version of terser
+      through.obj(
+        callbackify(async (file, _enc) => {
+          const input = {
+            [file.sourceMap.file]: file.contents.toString(),
+          };
+          const opts = {
+            sourceMap: {
+              filename: file.sourceMap.file,
+              content: file.sourceMap,
+            },
+            ...minifyOpts,
+          };
+          const res = await terser.minify(input, opts);
+          file.contents = Buffer.from(res.code);
+          applySourceMap(file, res.map);
+          return file;
+        }),
+      ),
    );
  });
 }
@ -385,18 +466,22 @@ function setupSourcemaps(buildConfiguration, { devMode }) {
 async function bundleIt(buildConfiguration) {
  const { bundlerOpts, events } = buildConfiguration;
  const bundler = browserify(bundlerOpts);
-  // manually apply non-standard option
+  // manually apply non-standard options
  bundler.external(bundlerOpts.manualExternal);
+  bundler.ignore(bundlerOpts.manualIgnore);
  // output build logs to terminal
  bundler.on('log', log);
  // forward update event (used by watchify)
  bundler.on('update', () => performBundle());
+
  await performBundle();

  async function performBundle() {
    // this pipeline is created for every bundle
    // the labels are all the steps you can hook into
    const pipeline = labeledStreamSplicer([
+      'groups',
+      [],
      'vinyl',
      [],
      'sourcemaps:init',
@ -415,7 +500,11 @@ async function bundleIt(buildConfiguration) {
    bundleStream.pipe(pipeline);
    // nothing will consume pipeline, so let it flow
    pipeline.resume();
+
    await endOfStream(pipeline);
+
+    // call the completion event to handle any post-processing
+    events.emit('bundleDone');
  }
 }

@ -427,7 +516,7 @@ function getEnvironmentVariables({ devMode, testing }) {
  return {
    METAMASK_DEBUG: devMode,
    METAMASK_ENVIRONMENT: environment,
-    METAMASK_VERSION: version,
+    METAMASK_VERSION: baseManifest.version,
    NODE_ENV: devMode ? 'development' : 'production',
    IN_TEST: testing ? 'true' : false,
    PUBNUB_SUB_KEY: process.env.PUBNUB_SUB_KEY || '',
@ -478,6 +567,20 @@ function getEnvironment({ devMode, testing }) {
  return 'other';
 }

+function renderHtmlFile(htmlName, groupSet, commonSet, browserPlatforms) {
+  const htmlFilePath = `./app/${htmlName}.html`;
+  const htmlTemplate = readFileSync(htmlFilePath, 'utf8');
+  const jsBundles = [...commonSet.values(), ...groupSet.values()].map(
+    (label) => `./${label}.js`,
+  );
+  const htmlOutput = Sqrl.render(htmlTemplate, { jsBundles });
+  browserPlatforms.forEach((platform) => {
+    const dest = `./dist/${platform}/${htmlName}.html`;
+    // we dont have a way of creating async events atm
+    writeFileSync(dest, htmlOutput);
+  });
+}
+
 function beep() {
  process.stdout.write('\x07');
 }
--- a/development/build/static.js
+++ b/development/build/static.js
@ -40,9 +40,8 @@ const copyTargets = [
    dest: ``,
  },
  {
-    src: `./app/`,
-    pattern: `*.html`,
-    dest: ``,
+    src: `./app/loading.html`,
+    dest: `loading.html`,
  },
  {
    src: `./node_modules/globalthis/dist/browser.js`,
@ -50,12 +49,16 @@ const copyTargets = [
  },
  {
    src: `./node_modules/ses/dist/lockdown.cjs`,
-    dest: `lockdown.js`,
+    dest: `lockdown-install.js`,
  },
  {
-    src: `./app/scripts/`,
-    pattern: `runLockdown.js`,
-    dest: ``,
+    src: `./app/scripts/lockdown-run.js`,
+    dest: `lockdown-run.js`,
+  },
+  {
+    // eslint-disable-next-line node/no-extraneous-require
+    src: require.resolve('@lavamoat/lavapack/src/runtime-cjs.js'),
+    dest: `runtime-cjs.js`,
  },
 ];

--- a/development/build/task.js
+++ b/development/build/task.js
@ -71,8 +71,9 @@ function runInChildProcess(task) {
    let childProcess;
    // don't run subprocesses in lavamoat for dev mode if main process not run in lavamoat
    if (
-      taskName.includes('scripts:core:dev') &&
-      !process.argv[0].includes('lavamoat')
+      process.env.npm_lifecycle_event === 'build:dev' ||
+      (taskName.includes('scripts:core:dev') &&
+        !process.argv[0].includes('lavamoat'))
    ) {
      childProcess = spawn('yarn', ['build:dev', taskName, '--skip-stats'], {
        env: process.env,
--- a/development/metamaskbot-build-announce.js
+++ b/development/metamaskbot-build-announce.js
@ -2,6 +2,7 @@
 const { promises: fs } = require('fs');
 const path = require('path');
 const fetch = require('node-fetch');
+const glob = require('fast-glob');
 const VERSION = require('../dist/chrome/manifest.json').version; // eslint-disable-line import/no-unresolved

 start().catch(console.error);
@ -39,19 +40,15 @@ async function start() {
    .join(', ');

  // links to bundle browser builds
-  const bundles = [
-    'background',
-    'ui',
-    'inpage',
-    'contentscript',
-    'ui-libs',
-    'bg-libs',
-    'phishing-detect',
-  ];
-  const bundleLinks = bundles
-    .map((bundle) => {
-      const url = `${BUILD_LINK_BASE}/build-artifacts/source-map-explorer/${bundle}.html`;
-      return `<a href="${url}">${bundle}</a>`;
+  const fileType = '.html';
+  const sourceMapRoot = '/build-artifacts/source-map-explorer/';
+  const bundleFiles = await glob(`.${sourceMapRoot}*${fileType}`);
+  const bundleLinks = bundleFiles
+    .map((bundleFile) => {
+      const fileName = bundleFile.split(sourceMapRoot)[1];
+      const bundleName = fileName.split(fileType)[0];
+      const url = `${BUILD_LINK_BASE}${sourceMapRoot}${fileName}`;
+      return `<a href="${url}">${bundleName}</a>`;
    })
    .join(', ');

--- a/development/require-react-devtools.js
+++ b/development/require-react-devtools.js
@ -1 +0,0 @@
-require('react-devtools');
--- a/development/sourcemap-validator.js
+++ b/development/sourcemap-validator.js
@ -2,6 +2,7 @@ const fs = require('fs');
 const path = require('path');
 const { SourceMapConsumer } = require('source-map');
 const pify = require('pify');
+const { codeFrameColumns } = require('@babel/code-frame');

 const fsAsync = pify(fs);

@ -20,13 +21,12 @@ start().catch((error) => {

 async function start() {
  const targetFiles = [
-    `background.js`,
-    // `bg-libs`, skipped because source maps are invalid due to browserify bug: https://github.com/browserify/browserify/issues/1971
+    `common-0.js`,
+    `background-0.js`,
+    `ui-0.js`,
+    'phishing-detect-0.js',
    // `contentscript.js`, skipped because the validator is erroneously sampling the inlined `inpage.js` script
    `inpage.js`,
-    'phishing-detect.js',
-    `ui.js`,
-    // `ui-libs.js`, skipped because source maps are invalid due to browserify bug: https://github.com/browserify/browserify/issues/1971
  ];
  let valid = true;

@ -102,7 +102,6 @@ async function validateSourcemapForFile({ buildName }) {

  const buildLines = rawBuild.split('\n');
  const targetString = 'new Error';
-  // const targetString = 'null'
  const matchesPerLine = buildLines.map((line) =>
    indicesOf(targetString, line),
  );
@ -114,26 +113,35 @@ async function validateSourcemapForFile({ buildName }) {
      // warn if source content is missing
      if (!result.source) {
        valid = false;
-        console.warn(
-          `!! missing source for position: ${JSON.stringify(position)}`,
+        const location = {
+          start: { line: position.line, column: position.column + 1 },
+        };
+        const codeSample = codeFrameColumns(rawBuild, location, {
+          message: `missing source for position`,
+          highlightCode: true,
+        });
+        console.error(
+          `missing source for position, in bundle "${buildName}"\n${codeSample}`,
        );
-        // const buildLine = buildLines[position.line - 1]
-        console.warn(`   origin in build:`);
-        console.warn(`   ${buildLines[position.line - 2]}`);
-        console.warn(`-> ${buildLines[position.line - 1]}`);
-        console.warn(`   ${buildLines[position.line - 0]}`);
        return;
      }
      const sourceContent = consumer.sourceContentFor(result.source);
      const sourceLines = sourceContent.split('\n');
-      const line = sourceLines[result.line - 1];
+      const sourceLine = sourceLines[result.line - 1];
      // this sometimes includes the whole line though we tried to match somewhere in the middle
-      const portion = line.slice(result.column);
-      const isMaybeValid = portion.includes(targetString);
-      if (!isMaybeValid) {
+      const portion = sourceLine.slice(result.column);
+      const foundValidSource = portion.includes(targetString);
+      if (!foundValidSource) {
        valid = false;
+        const location = {
+          start: { line: result.line + 1, column: result.column + 1 },
+        };
+        const codeSample = codeFrameColumns(sourceContent, location, {
+          message: `expected to see ${JSON.stringify(targetString)}`,
+          highlightCode: true,
+        });
        console.error(
-          `Sourcemap seems invalid:\n${getFencedCode(result.source, line)}`,
+          `Sourcemap seems invalid, ${result.source}\n${codeSample}`,
        );
      }
    });
@ -142,27 +150,6 @@ async function validateSourcemapForFile({ buildName }) {
  return valid;
 }

-const CODE_FENCE_LENGTH = 80;
-const TITLE_PADDING_LENGTH = 1;
-
-function getFencedCode(filename, code) {
-  const title = `${' '.repeat(TITLE_PADDING_LENGTH)}${filename}${' '.repeat(
-    TITLE_PADDING_LENGTH,
-  )}`;
-  const openingFenceLength = Math.max(
-    CODE_FENCE_LENGTH - (filename.length + TITLE_PADDING_LENGTH * 2),
-    0,
-  );
-  const startOpeningFenceLength = Math.floor(openingFenceLength / 2);
-  const endOpeningFenceLength = Math.ceil(openingFenceLength / 2);
-  const openingFence = `${'='.repeat(
-    startOpeningFenceLength,
-  )}${title}${'='.repeat(endOpeningFenceLength)}`;
-  const closingFence = '='.repeat(CODE_FENCE_LENGTH);
-
-  return `${openingFence}\n${code}\n${closingFence}\n`;
-}
-
 function indicesOf(substring, string) {
  const a = [];
  let i = -1;
--- a/development/stream-flat-map.js
+++ b/development/stream-flat-map.js
@ -0,0 +1,43 @@
+const { PassThrough: ThroughStream } = require('stream');
+// eslint-ignore-next-line node/no-extraneous-require
+const duplexify = require('duplexify').obj;
+
+module.exports = {
+  streamFlatMap,
+  asyncGeneratorToStream,
+};
+
+// returns an async generator that maps each chunk to a stream with the specified
+// "entryToStream" mapping fn, and forwards child streams out
+// useable with streams.pipeline
+function streamFlatMap(entryToStream) {
+  const duplex = asyncGeneratorToStream(flatMapGenerator);
+  return duplex;
+
+  async function* flatMapGenerator(source) {
+    for await (const entry of source) {
+      const subStream = entryToStream(entry);
+      yield* subStream;
+    }
+  }
+}
+
+// this stupid utility turns an async iterator factory into a duplex stream
+function asyncGeneratorToStream(factoryFn) {
+  const writableStream = new ThroughStream({ objectMode: true });
+  const readableStream = new ThroughStream({ objectMode: true });
+  const duplex = duplexify(writableStream, readableStream);
+  const asyncIter = factoryFn(writableStream);
+  // drain iterator into readable stream
+  process.nextTick(async () => {
+    try {
+      for await (const item of asyncIter) {
+        readableStream.write(item);
+      }
+      readableStream.end();
+    } catch (err) {
+      readableStream.destroy(err);
+    }
+  });
+  return duplex;
+}
--- a/lavamoat/node/policy.json
+++ b/lavamoat/node/policy.json
@ -223,11 +223,6 @@
        "js-tokens": true
      }
    },
-    "@babel/parser": {
-      "globals": {
-        "BigInt": true
-      }
-    },
    "@babel/plugin-proposal-async-generator-functions": {
      "packages": {
        "@babel/core": true,
@ -805,6 +800,26 @@
        "through2": true
      }
    },
+    "@lavamoat/lavapack": {
+      "builtin": {
+        "assert": true,
+        "buffer.Buffer.from": true,
+        "path.join": true,
+        "path.relative": true
+      },
+      "globals": {
+        "__dirname": true,
+        "process.cwd": true
+      },
+      "packages": {
+        "JSONStream": true,
+        "combine-source-map": true,
+        "convert-source-map": true,
+        "json-stable-stringify": true,
+        "through2": true,
+        "umd": true
+      }
+    },
    "@nodelib/fs.scandir": {
      "builtin": {
        "fs.lstat": true,
@ -874,7 +889,6 @@
    },
    "acorn": {
      "globals": {
-        "BigInt": true,
        "define": true
      }
    },
@ -884,9 +898,6 @@
      }
    },
    "acorn-node": {
-      "globals": {
-        "BigInt": true
-      },
      "packages": {
        "acorn": true,
        "acorn-dynamic-import": true,
@ -959,16 +970,6 @@
        "buffer-equal": true
      }
    },
-    "are-we-there-yet": {
-      "builtin": {
-        "events.EventEmitter": true,
-        "util.inherits": true
-      },
-      "packages": {
-        "delegates": true,
-        "readable-stream": true
-      }
-    },
    "arr-diff": {
      "packages": {
        "arr-flatten": true,
@ -1091,6 +1092,13 @@
        "pascalcase": true
      }
    },
+    "bify-module-groups": {
+      "packages": {
+        "pify": true,
+        "pump": true,
+        "through2": true
+      }
+    },
    "bl": {
      "builtin": {
        "util.inherits": true
@ -1321,7 +1329,6 @@
        "anymatch": true,
        "async-each": true,
        "braces": true,
-        "fsevents": true,
        "glob-parent": true,
        "inherits": true,
        "is-binary-path": true,
@ -1573,16 +1580,6 @@
        "through2": true
      }
    },
-    "detect-libc": {
-      "builtin": {
-        "child_process.spawnSync": true,
-        "fs.readdirSync": true,
-        "os.platform": true
-      },
-      "globals": {
-        "process.env": true
-      }
-    },
    "detective": {
      "packages": {
        "acorn-node": true,
@ -1670,10 +1667,7 @@
    "es-abstract": {
      "globals": {
        "AggregateError": true,
-        "Atomics": true,
-        "BigInt": true,
        "FinalizationRegistry": true,
-        "SharedArrayBuffer": true,
        "WeakRef": true
      },
      "packages": {
@ -2026,45 +2020,6 @@
        "process.version": true
      }
    },
-    "fsevents": {
-      "builtin": {
-        "events.EventEmitter": true,
-        "fs.stat": true,
-        "path.join": true,
-        "util.inherits": true
-      },
-      "globals": {
-        "__dirname": true,
-        "process.nextTick": true,
-        "process.platform": true,
-        "setImmediate": true
-      },
-      "native": true,
-      "packages": {
-        "node-pre-gyp": true
-      }
-    },
-    "gauge": {
-      "builtin": {
-        "util.format": true
-      },
-      "globals": {
-        "clearInterval": true,
-        "process": true,
-        "setImmediate": true,
-        "setInterval": true
-      },
-      "packages": {
-        "aproba": true,
-        "console-control-strings": true,
-        "has-unicode": true,
-        "object-assign": true,
-        "signal-exit": true,
-        "string-width": true,
-        "strip-ansi": true,
-        "wide-align": true
-      }
-    },
    "get-assigned-identifiers": {
      "builtin": {
        "assert.equal": true
@ -2375,26 +2330,6 @@
        "through2": true
      }
    },
-    "gulp-terser-js": {
-      "builtin": {
-        "fs.readFileSync": true,
-        "path.basename": true,
-        "path.resolve": true
-      },
-      "globals": {
-        "Buffer.from": true,
-        "console.error": true,
-        "console.log": true,
-        "process.stdout.columns": true
-      },
-      "packages": {
-        "plugin-error": true,
-        "source-map": true,
-        "terser": true,
-        "through2": true,
-        "vinyl-sourcemaps-apply": true
-      }
-    },
    "gulp-watch": {
      "builtin": {
        "path.dirname": true,
@ -2445,16 +2380,6 @@
        "process.argv": true
      }
    },
-    "has-unicode": {
-      "builtin": {
-        "os.type": true
-      },
-      "globals": {
-        "process.env.LANG": true,
-        "process.env.LC_ALL": true,
-        "process.env.LC_CTYPE": true
-      }
-    },
    "has-value": {
      "packages": {
        "get-value": true,
@ -2608,11 +2533,6 @@
        "is-plain-object": true
      }
    },
-    "is-fullwidth-code-point": {
-      "packages": {
-        "number-is-nan": true
-      }
-    },
    "is-glob": {
      "packages": {
        "is-extglob": true
@ -2997,56 +2917,6 @@
        "setTimeout": true
      }
    },
-    "node-pre-gyp": {
-      "builtin": {
-        "events.EventEmitter": true,
-        "fs.existsSync": true,
-        "fs.readFileSync": true,
-        "fs.renameSync": true,
-        "path.dirname": true,
-        "path.existsSync": true,
-        "path.join": true,
-        "path.resolve": true,
-        "url.parse": true,
-        "url.resolve": true,
-        "util.inherits": true
-      },
-      "globals": {
-        "__dirname": true,
-        "console.log": true,
-        "process.arch": true,
-        "process.cwd": true,
-        "process.env": true,
-        "process.platform": true,
-        "process.version.substr": true,
-        "process.versions": true
-      },
-      "packages": {
-        "detect-libc": true,
-        "nopt": true,
-        "npmlog": true,
-        "rimraf": true,
-        "semver": true
-      }
-    },
-    "nopt": {
-      "builtin": {
-        "path": true,
-        "stream.Stream": true,
-        "url": true
-      },
-      "globals": {
-        "console": true,
-        "process.argv": true,
-        "process.env.DEBUG_NOPT": true,
-        "process.env.NOPT_DEBUG": true,
-        "process.platform": true
-      },
-      "packages": {
-        "abbrev": true,
-        "osenv": true
-      }
-    },
    "normalize-path": {
      "packages": {
        "remove-trailing-separator": true
@ -3062,22 +2932,6 @@
        "once": true
      }
    },
-    "npmlog": {
-      "builtin": {
-        "events.EventEmitter": true,
-        "util": true
-      },
-      "globals": {
-        "process.nextTick": true,
-        "process.stderr": true
-      },
-      "packages": {
-        "are-we-there-yet": true,
-        "console-control-strings": true,
-        "gauge": true,
-        "set-blocking": true
-      }
-    },
    "object-copy": {
      "packages": {
        "copy-descriptor": true,
@ -3090,7 +2944,6 @@
        "util.inspect": true
      },
      "globals": {
-        "BigInt": true,
        "HTMLElement": true
      }
    },
@ -3145,54 +2998,6 @@
        "readable-stream": true
      }
    },
-    "os-homedir": {
-      "builtin": {
-        "os.homedir": true
-      },
-      "globals": {
-        "process.env": true,
-        "process.getuid": true,
-        "process.platform": true
-      }
-    },
-    "os-tmpdir": {
-      "globals": {
-        "process.env.SystemRoot": true,
-        "process.env.TEMP": true,
-        "process.env.TMP": true,
-        "process.env.TMPDIR": true,
-        "process.env.windir": true,
-        "process.platform": true
-      }
-    },
-    "osenv": {
-      "builtin": {
-        "child_process.exec": true,
-        "path": true
-      },
-      "globals": {
-        "process.env.COMPUTERNAME": true,
-        "process.env.ComSpec": true,
-        "process.env.EDITOR": true,
-        "process.env.HOSTNAME": true,
-        "process.env.PATH": true,
-        "process.env.PROMPT": true,
-        "process.env.PS1": true,
-        "process.env.Path": true,
-        "process.env.SHELL": true,
-        "process.env.USER": true,
-        "process.env.USERDOMAIN": true,
-        "process.env.USERNAME": true,
-        "process.env.VISUAL": true,
-        "process.env.path": true,
-        "process.nextTick": true,
-        "process.platform": true
-      },
-      "packages": {
-        "os-homedir": true,
-        "os-tmpdir": true
-      }
-    },
    "parent-module": {
      "packages": {
        "callsites": true
@ -3775,12 +3580,6 @@
        "process": true
      }
    },
-    "set-blocking": {
-      "globals": {
-        "process.stderr": true,
-        "process.stdout": true
-      }
-    },
    "set-value": {
      "packages": {
        "extend-shallow": true,
@ -3910,6 +3709,15 @@
        "extend-shallow": true
      }
    },
+    "squirrelly": {
+      "builtin": {
+        "fs.existsSync": true,
+        "fs.readFileSync": true,
+        "path.dirname": true,
+        "path.extname": true,
+        "path.resolve": true
+      }
+    },
    "static-eval": {
      "packages": {
        "escodegen": true
@ -3974,7 +3782,6 @@
    },
    "string-width": {
      "packages": {
-        "code-point-at": true,
        "emoji-regex": true,
        "is-fullwidth-code-point": true,
        "strip-ansi": true
@ -4130,9 +3937,19 @@
        "Buffer.from": true,
        "atob": true,
        "btoa": true,
-        "define": true
+        "console.log": true,
+        "console.warn": true,
+        "define": true,
+        "process.argv": true,
+        "process.exit": true,
+        "process.platform": true,
+        "process.stderr.write": true,
+        "process.stdin.on": true,
+        "process.stdin.resume": true,
+        "process.stdin.setEncoding": true
      },
      "packages": {
+        "acorn": true,
        "source-map": true
      }
    },
@ -4531,11 +4348,6 @@
        "isexe": true
      }
    },
-    "wide-align": {
-      "packages": {
-        "string-width": true
-      }
-    },
    "write": {
      "builtin": {
        "fs.createWriteStream": true,
--- a/package.json
+++ b/package.json
@ -9,7 +9,7 @@
  "scripts": {
    "setup": "yarn install && yarn setup:postinstall",
    "setup:postinstall": "yarn patch-package && yarn allow-scripts",
-    "start": "node development/build/index.js dev",
+    "start": "yarn build:dev dev",
    "start:lavamoat": "yarn build dev",
    "dist": "yarn build prod",
    "build": "lavamoat development/build/index.js",
@ -191,6 +191,7 @@
    "readable-stream": "^2.3.3",
    "redux": "^4.0.5",
    "redux-thunk": "^2.3.0",
+    "requirejs": "^2.3.6",
    "reselect": "^3.0.1",
    "rpc-cap": "^3.2.1",
    "safe-event-emitter": "^1.0.1",
@ -204,6 +205,7 @@
    "web3-stream-provider": "^4.0.0"
  },
  "devDependencies": {
+    "@babel/code-frame": "^7.12.13",
    "@babel/core": "^7.12.1",
    "@babel/eslint-parser": "^7.13.14",
    "@babel/eslint-plugin": "^7.12.1",
@ -216,6 +218,7 @@
    "@babel/preset-react": "^7.0.0",
    "@babel/register": "^7.5.5",
    "@lavamoat/allow-scripts": "^1.0.6",
+    "@lavamoat/lavapack": "^1.0.4",
    "@metamask/auto-changelog": "^2.1.0",
    "@metamask/eslint-config": "^6.0.0",
    "@metamask/eslint-config-jest": "^6.0.0",
@ -237,7 +240,10 @@
    "@types/react": "^16.9.53",
    "addons-linter": "1.14.0",
    "babelify": "^10.0.0",
+    "bify-module-groups": "^1.0.0",
+    "bify-vinyl-gator": "^1.0.0",
    "brfs": "^2.0.2",
+    "browser-pack": "^6.1.0",
    "browserify": "^16.5.1",
    "chalk": "^3.0.0",
    "chromedriver": "^79.0.0",
@ -247,6 +253,7 @@
    "css-loader": "^2.1.1",
    "css-to-xpath": "^0.1.0",
    "del": "^3.0.0",
+    "duplexify": "^4.1.1",
    "enzyme": "^3.10.0",
    "enzyme-adapter-react-16": "^1.15.1",
    "eslint": "^7.23.0",
@ -273,7 +280,6 @@
    "gulp-rtlcss": "^1.4.0",
    "gulp-sourcemaps": "^2.6.0",
    "gulp-stylelint": "^13.0.0",
-    "gulp-terser-js": "^5.2.2",
    "gulp-watch": "^5.0.1",
    "gulp-zip": "^4.0.0",
    "history": "^5.0.0",
@ -293,6 +299,7 @@
    "prettier": "^2.2.1",
    "prettier-plugin-sort-json": "^0.0.1",
    "proxyquire": "^2.1.3",
+    "pumpify": "^2.0.1",
    "randomcolor": "^0.5.4",
    "rc": "^1.2.8",
    "react-devtools": "^4.10.1",
@ -308,13 +315,16 @@
    "sinon": "^9.0.0",
    "source-map": "^0.7.2",
    "source-map-explorer": "^2.4.2",
+    "squirrelly": "^8.0.8",
    "string.prototype.matchall": "^4.0.2",
    "style-loader": "^0.21.0",
    "stylelint": "^13.6.1",
-    "through2": "^2.0.3",
+    "terser": "^5.7.0",
+    "through2": "^4.0.2",
    "ttest": "^2.1.1",
    "vinyl-buffer": "^1.0.1",
    "vinyl-source-stream": "^2.0.0",
+    "vinyl-sourcemaps-apply": "^0.2.1",
    "watchify": "^3.11.1",
    "webpack": "^4.41.6",
    "yargs": "^17.0.1"
--- a/patches/squirrelly+8.0.8.patch
+++ b/patches/squirrelly+8.0.8.patch
@ -0,0 +1,13 @@
+diff --git a/node_modules/squirrelly/dist/squirrelly.cjs.js b/node_modules/squirrelly/dist/squirrelly.cjs.js
+index 7908a34..044e348 100644
+--- a/node_modules/squirrelly/dist/squirrelly.cjs.js
+++ b/node_modules/squirrelly/dist/squirrelly.cjs.js
+@@ -5,7 +5,7 @@ Object.defineProperty(exports, '__esModule', { value: true });
+ // TODO: allow '-' to trim up until newline. Use [^\S\n\r] instead of \s
+ // TODO: only include trimLeft polyfill if not in ES6
+ /* END TYPES */
+-var promiseImpl = new Function('return this')().Promise;
+var promiseImpl = globalThis.Promise;
+ var asyncFunc = false;
+ try {
+     asyncFunc = new Function('return (async function(){}).constructor')();
--- a/patches/watchify+3.11.1.patch
+++ b/patches/watchify+3.11.1.patch
@ -0,0 +1,38 @@
+diff --git a/node_modules/watchify/index.js b/node_modules/watchify/index.js
+index 0753b9f..4fea9e1 100644
+--- a/node_modules/watchify/index.js
+++ b/node_modules/watchify/index.js
+@@ -58,33 +58,6 @@ function watchify (b, opts) {
+         if (pkgcache) pkgcache[file] = pkg;
+     });
+ 
+-    b.on('reset', reset);
+-    reset();
+-    
+-    function reset () {
+-        var time = null;
+-        var bytes = 0;
+-        b.pipeline.get('record').on('end', function () {
+-            time = Date.now();
+-        });
+-        
+-        b.pipeline.get('wrap').push(through(write, end));
+-        function write (buf, enc, next) {
+-            bytes += buf.length;
+-            this.push(buf);
+-            next();
+-        }
+-        function end () {
+-            var delta = Date.now() - time;
+-            b.emit('time', delta);
+-            b.emit('bytes', bytes);
+-            b.emit('log', bytes + ' bytes written ('
+-                + (delta / 1000).toFixed(2) + ' seconds)'
+-            );
+-            this.push(null);
+-        }
+-    }
+-    
+     var fwatchers = {};
+     var fwatcherFiles = {};
+     var ignoredFiles = {};
--- a/test/unit-global/frozenPromise.test.js
+++ b/test/unit-global/frozenPromise.test.js
@ -1,7 +1,7 @@
 // Should occur before anything else
 import './globalPatch';
 import 'ses/lockdown';
-import '../../app/scripts/runLockdown';
+import '../../app/scripts/lockdown-run';
 import { strict as assert } from 'assert'; /* eslint-disable-line import/first,import/order */

 describe('Promise global is immutable', function () {
--- a/yarn.lock
+++ b/yarn.lock
@ -2567,6 +2567,18 @@
    semver "^7.3.4"
    yargs "^16.2.0"

+"@lavamoat/lavapack@^1.0.4":
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/@lavamoat/lavapack/-/lavapack-1.0.4.tgz#e72d6b29fa70da8236a127c1d95cb581cda6941e"
+  integrity sha512-Zhcn+eJyHIS4AAmN9IIjs8WCh12Q7NpFXXz0pI3Y54uknTdx5TPlwr3ARKf0jEXDOWNok/TuK2uPld54BSG/FQ==
+  dependencies:
+    JSONStream "^1.3.5"
+    combine-source-map "^0.8.0"
+    convert-source-map "^1.7.0"
+    json-stable-stringify "^1.0.1"
+    through2 "^4.0.2"
+    umd "^3.0.3"
+
 "@lavamoat/preinstall-always-fail@^1.0.0":
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/@lavamoat/preinstall-always-fail/-/preinstall-always-fail-1.0.0.tgz#e78a6e3d9e212a4fef869ec37d4f5fb498dea373"
@ -4299,7 +4311,7 @@
  optionalDependencies:
    text-encoding "^0.6.4"

-JSONStream@^1.0.3:
+JSONStream@^1.0.3, JSONStream@^1.3.5:
  version "1.3.5"
  resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.5.tgz#3208c1f08d3a4d99261ab64f92302bc15e111ca0"
  integrity sha512-E+iruNOY8VV9s4JEbe1aNEm6MiszPRr/UfcHMz0TQh1BXSxHK+ASV1R6W4HpjBhSeS+54PIsAMCBmwD06LLsqQ==
@ -6435,6 +6447,33 @@ better-opn@^2.0.0:
  dependencies:
    open "^7.0.3"

+bify-module-groups@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/bify-module-groups/-/bify-module-groups-1.0.0.tgz#6fba8f96a8b0f9e8f0b04035650fd56249b6119d"
+  integrity sha512-JAAkE9L5vZoALCEqawXipQNlDn3D0nUyjt0cHgRXj0Kce2RNLQsBxA6wTmnYpQDna6g6VVyC8IUi3n02ppmbhA==
+  dependencies:
+    bify-packagedata-stream "1.0.0"
+    pump "^3.0.0"
+    through2 "^3.0.1"
+
+bify-packagedata-stream@1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/bify-packagedata-stream/-/bify-packagedata-stream-1.0.0.tgz#a6dbdcba64f9bf1c87bdc02ba9586fff7b94ccb3"
+  integrity sha512-ckOCceDpAOySFrt89saOShpVbP/iQbmZeWlYSxZV2e3HPTPhcd3JSudMJZhpsihQTyZut39efDo4+8aOb4vo2w==
+  dependencies:
+    module-name-from-path "git+https://git@github.com/kumavis/module-name-from-path.git"
+    resolve-package-path "^1.2.7"
+    through2 "^3.0.0"
+
+bify-vinyl-gator@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/bify-vinyl-gator/-/bify-vinyl-gator-1.0.0.tgz#aa1ce5c6a5829c75250fea6b04ec6a45c558efde"
+  integrity sha512-mGR/U+veqIrMWRWV1TUayNEmSIhaGDggYLwIBwDA7v2bTSHrEZcyyLs6FN3cF2cuyCzvpV1w4eH6P/So0nhCbA==
+  dependencies:
+    requirejs "^2.3.6"
+    through2 "^4.0.2"
+    vinyl "^2.2.1"
+
 big-integer@1.6.36:
  version "1.6.36"
  resolved "https://registry.yarnpkg.com/big-integer/-/big-integer-1.6.36.tgz#78631076265d4ae3555c04f85e7d9d2f3a071a36"
@ -6792,7 +6831,7 @@ brorand@^1.0.1, brorand@^1.0.5, brorand@^1.1.0:
  resolved "https://registry.yarnpkg.com/brorand/-/brorand-1.1.0.tgz#12c25efe40a45e3c323eb8675a0a0ce57b22371f"
  integrity sha1-EsJe/kCkXjwyPrhnWgoM5XsiNx8=

-browser-pack@^6.0.1:
+browser-pack@^6.0.1, browser-pack@^6.1.0:
  version "6.1.0"
  resolved "https://registry.yarnpkg.com/browser-pack/-/browser-pack-6.1.0.tgz#c34ba10d0b9ce162b5af227c7131c92c2ecd5774"
  integrity sha512-erYug8XoqzU3IfcU8fUgyHqyOXqIE4tUTTQ+7mqUjQlvnXkOO6OlT9c/ZoJVHYoAaqGxr09CN53G7XIsO4KtWA==
@ -9556,6 +9595,16 @@ duplexify@^3.1.2, duplexify@^3.4.2:
    readable-stream "^2.0.0"
    stream-shift "^1.0.0"

+duplexify@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/duplexify/-/duplexify-4.1.1.tgz#7027dc374f157b122a8ae08c2d3ea4d2d953aa61"
+  integrity sha512-DY3xVEmVHTv1wSzKNbwoU6nVjzI369Y6sPoqfYr0/xlx3IdX2n94xIszTcjPO8W8ZIv0Wb0PXNcjuZyT4wiICA==
+  dependencies:
+    end-of-stream "^1.4.1"
+    inherits "^2.0.3"
+    readable-stream "^3.1.1"
+    stream-shift "^1.0.0"
+
 each-props@^1.3.0:
  version "1.3.2"
  resolved "https://registry.yarnpkg.com/each-props/-/each-props-1.3.2.tgz#ea45a414d16dd5cfa419b1a81720d5ca06892333"
@ -13225,17 +13274,6 @@ gulp-stylelint@^13.0.0:
    strip-ansi "^6.0.0"
    through2 "^3.0.1"

-gulp-terser-js@^5.2.2:
-  version "5.2.2"
-  resolved "https://registry.yarnpkg.com/gulp-terser-js/-/gulp-terser-js-5.2.2.tgz#3d93db9b2b83f35dfcc5b209af6b1762756eb6a3"
-  integrity sha512-4ull0HzTWeWjRPiGmAFmdhRcEDOG+r7aXivNHOBQzElLzMaeVKQwmCPDi2juBzUUkjAkPkKb1jHVoJN/PKTvcA==
-  dependencies:
-    plugin-error "^1.0.1"
-    source-map "^0.7.3"
-    terser "^4.6.12"
-    through2 "^3.0.1"
-    vinyl-sourcemaps-apply "^0.2.1"
-
 gulp-watch@^5.0.1:
  version "5.0.1"
  resolved "https://registry.yarnpkg.com/gulp-watch/-/gulp-watch-5.0.1.tgz#83d378752f5bfb46da023e73c17ed1da7066215d"
@ -18548,6 +18586,10 @@ module-deps@^6.0.0:
    through2 "^2.0.0"
    xtend "^4.0.0"

+"module-name-from-path@git+https://git@github.com/kumavis/module-name-from-path.git":
+  version "1.0.4"
+  resolved "git+https://git@github.com/kumavis/module-name-from-path.git#fd9c592663a1af6cc48b1be7b8045ea547fca79a"
+
 module-not-found-error@^1.0.1:
  version "1.0.1"
  resolved "https://registry.yarnpkg.com/module-not-found-error/-/module-not-found-error-1.0.1.tgz#cf8b4ff4f29640674d6cdd02b0e3bc523c2bbdc0"
@ -21605,6 +21647,15 @@ pumpify@^1.3.3, pumpify@^1.3.5:
    inherits "^2.0.1"
    pump "^1.0.0"

+pumpify@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/pumpify/-/pumpify-2.0.1.tgz#abfc7b5a621307c728b551decbbefb51f0e4aa1e"
+  integrity sha512-m7KOje7jZxrmutanlkS1daj1dS6z6BgslzOXmcSEpIlCxM3VJH7lG5QLeck/6hgF6F4crFf01UtQmNsJfweTAw==
+  dependencies:
+    duplexify "^4.1.1"
+    inherits "^2.0.3"
+    pump "^3.0.0"
+
 punycode@1.3.2:
  version "1.3.2"
  resolved "https://registry.yarnpkg.com/punycode/-/punycode-1.3.2.tgz#9653a036fb7c1ee42342f2325cceefea3926c48d"
@ -22354,7 +22405,7 @@ readable-stream@1.1.x, readable-stream@^1.0.33:
    isarray "0.0.1"
    string_decoder "~0.10.x"

-"readable-stream@2 || 3", readable-stream@^3.0.0, readable-stream@^3.0.1, readable-stream@^3.0.2, readable-stream@^3.0.5, readable-stream@^3.0.6, readable-stream@^3.1.1, readable-stream@^3.4.0, readable-stream@^3.5.0, readable-stream@^3.6.0:
+"readable-stream@2 || 3", readable-stream@3, readable-stream@^3.0.0, readable-stream@^3.0.1, readable-stream@^3.0.2, readable-stream@^3.0.5, readable-stream@^3.0.6, readable-stream@^3.1.1, readable-stream@^3.4.0, readable-stream@^3.5.0, readable-stream@^3.6.0:
  version "3.6.0"
  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
  integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
@ -22919,6 +22970,11 @@ require-uncached@^1.0.2:
    caller-path "^0.1.0"
    resolve-from "^1.0.0"

+requirejs@^2.3.6:
+  version "2.3.6"
+  resolved "https://registry.yarnpkg.com/requirejs/-/requirejs-2.3.6.tgz#e5093d9601c2829251258c0b9445d4d19fa9e7c9"
+  integrity sha512-ipEzlWQe6RK3jkzikgCupiTbTvm4S0/CAU5GlgptkN5SO6F3u0UD0K18wy6ErDqiCyP4J4YYe1HuAShvsxePLg==
+
 reselect@^3.0.1:
  version "3.0.1"
  resolved "https://registry.yarnpkg.com/reselect/-/reselect-3.0.1.tgz#efdaa98ea7451324d092b2b2163a6a1d7a9a2147"
@ -22971,6 +23027,14 @@ resolve-options@^1.1.0:
  dependencies:
    value-or-function "^3.0.0"

+resolve-package-path@^1.2.7:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/resolve-package-path/-/resolve-package-path-1.2.7.tgz#2a7bc37ad96865e239330e3102c31322847e652e"
+  integrity sha512-fVEKHGeK85bGbVFuwO9o1aU0n3vqQGrezPc51JGu9UTXpFQfWq5qCeKxyaRUSvephs+06c5j5rPq/dzHGEo8+Q==
+  dependencies:
+    path-root "^0.1.1"
+    resolve "^1.10.0"
+
 resolve-pathname@^3.0.0:
  version "3.0.0"
  resolved "https://registry.yarnpkg.com/resolve-pathname/-/resolve-pathname-3.0.0.tgz#99d02224d3cf263689becbb393bc560313025dcd"
@ -24188,7 +24252,7 @@ source-map-support@^0.4.15:
  dependencies:
    source-map "^0.5.6"

-source-map-support@^0.5.11, source-map-support@^0.5.16, source-map-support@^0.5.6, source-map-support@~0.5.12, source-map-support@~0.5.4:
+source-map-support@^0.5.11, source-map-support@^0.5.16, source-map-support@^0.5.6, source-map-support@~0.5.12, source-map-support@~0.5.19, source-map-support@~0.5.4:
  version "0.5.19"
  resolved "https://registry.yarnpkg.com/source-map-support/-/source-map-support-0.5.19.tgz#a98b62f86dcaf4f67399648c085291ab9e8fed61"
  integrity sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==
@ -24206,7 +24270,7 @@ source-map@0.6.1, source-map@^0.6.0, source-map@^0.6.1, source-map@~0.6.0, sourc
  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.6.1.tgz#74722af32e9614e9c287a8d0bbde48b5e2f1a263"
  integrity sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==

-source-map@0.X, source-map@^0.7.2, source-map@^0.7.3:
+source-map@0.X, source-map@^0.7.2, source-map@^0.7.3, source-map@~0.7.2:
  version "0.7.3"
  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.7.3.tgz#5302f8169031735226544092e64981f751750383"
  integrity sha512-CkCj6giN3S+n9qrYiBTX5gystlENnRW5jZeNLHpe6aue+SrHcG5VYwujhW9s4dY31mEGsxBDrHR6oI69fTXsaQ==
@ -24313,6 +24377,11 @@ sprintf-js@~1.0.2:
  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
  integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=

+squirrelly@^8.0.8:
+  version "8.0.8"
+  resolved "https://registry.yarnpkg.com/squirrelly/-/squirrelly-8.0.8.tgz#d6704650b2170b8040d5de5bff9fa69cb62b5e0f"
+  integrity sha512-7dyZJ9Gw86MmH0dYLiESsjGOTj6KG8IWToTaqBuB6LwPI+hyNb6mbQaZwrfnAQ4cMDnSWMUvX/zAYDLTSWLk/w==
+
 sshpk@^1.7.0:
  version "1.16.1"
  resolved "https://registry.yarnpkg.com/sshpk/-/sshpk-1.16.1.tgz#fb661c0bef29b39db40769ee39fa70093d6f6877"
@ -25257,7 +25326,7 @@ terser-webpack-plugin@^3.0.0:
    terser "^4.8.0"
    webpack-sources "^1.4.3"

-terser@^4.1.2, terser@^4.6.12, terser@^4.6.3, terser@^4.8.0:
+terser@^4.1.2, terser@^4.6.3, terser@^4.8.0:
  version "4.8.0"
  resolved "https://registry.yarnpkg.com/terser/-/terser-4.8.0.tgz#63056343d7c70bb29f3af665865a46fe03a0df17"
  integrity sha512-EAPipTNeWsb/3wLPeup1tVPaXfIaU68xMnVdPafIL1TV05OhASArYyIfFvnvJCNrR2NIOvDVNNTFRa+Re2MWyw==
@ -25266,6 +25335,15 @@ terser@^4.1.2, terser@^4.6.12, terser@^4.6.3, terser@^4.8.0:
    source-map "~0.6.1"
    source-map-support "~0.5.12"

+terser@^5.7.0:
+  version "5.7.0"
+  resolved "https://registry.yarnpkg.com/terser/-/terser-5.7.0.tgz#a761eeec206bc87b605ab13029876ead938ae693"
+  integrity sha512-HP5/9hp2UaZt5fYkuhNBR8YyRcT8juw8+uFbAme53iN9hblvKnLUTKkmwJG6ocWpIKf8UK4DoeWG4ty0J6S6/g==
+  dependencies:
+    commander "^2.20.0"
+    source-map "~0.7.2"
+    source-map-support "~0.5.19"
+
 test-exclude@^6.0.0:
  version "6.0.0"
  resolved "https://registry.yarnpkg.com/test-exclude/-/test-exclude-6.0.0.tgz#04a8698661d805ea6fa293b6cb9e63ac044ef15e"
@ -25323,6 +25401,13 @@ through2@^3.0.0, through2@^3.0.1:
  dependencies:
    readable-stream "2 || 3"

+through2@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/through2/-/through2-4.0.2.tgz#a7ce3ac2a7a8b0b966c80e7c49f0484c3b239764"
+  integrity sha512-iOqSav00cVxEEICeD7TjLB1sueEL+81Wpzp2bY17uZjZN0pWZPuo4suZ/61VujxmqSGFfgOcNuTZ85QJwNZQpw==
+  dependencies:
+    readable-stream "3"
+
 through@2, "through@>=2.2.7 <3", through@^2.3.6, through@~2.3, through@~2.3.1, through@~2.3.4, through@~2.3.8:
  version "2.3.8"
  resolved "https://registry.yarnpkg.com/through/-/through-2.3.8.tgz#0dd4c9ffaabc357960b1b724115d7e0e86a2e1f5"
@ -25868,7 +25953,7 @@ typical@^5.0.0:
  resolved "https://registry.yarnpkg.com/typical/-/typical-5.1.0.tgz#7116ca103caf2574985fc84fbaa8fd0ee5ea1684"
  integrity sha512-t5Ik8UAwBal1P1XzuVE4dc+RYQZicLUGJdvqr/vdqsED7SQECgsGBylldSsfWZL7RQjxT3xhQcKHWhLaVSR6YQ==

-umd@^3.0.0:
+umd@^3.0.0, umd@^3.0.3:
  version "3.0.3"
  resolved "https://registry.yarnpkg.com/umd/-/umd-3.0.3.tgz#aa9fe653c42b9097678489c01000acb69f0b26cf"
  integrity sha512-4IcGSufhFshvLNcMCV80UnQVlZ5pMOC8mvNPForqwA4+lzYQuetTESLDQkeLmihq8bRcnpbQa48Wb8Lh16/xow==
@ -26566,6 +26651,18 @@ vinyl@^2.0.0, vinyl@^2.1.0, vinyl@^2.2.0:
    remove-trailing-separator "^1.0.1"
    replace-ext "^1.0.0"

+vinyl@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/vinyl/-/vinyl-2.2.1.tgz#23cfb8bbab5ece3803aa2c0a1eb28af7cbba1974"
+  integrity sha512-LII3bXRFBZLlezoG5FfZVcXflZgWP/4dCwKtxd5ky9+LOtM4CS3bIRQsmR1KMnMW07jpE8fqR2lcxPZ+8sJIcw==
+  dependencies:
+    clone "^2.1.1"
+    clone-buffer "^1.0.0"
+    clone-stats "^1.0.0"
+    cloneable-readable "^1.0.0"
+    remove-trailing-separator "^1.0.1"
+    replace-ext "^1.0.0"
+
 vm-browserify@^1.0.0, vm-browserify@^1.0.1:
  version "1.1.2"
  resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-1.1.2.tgz#78641c488b8e6ca91a75f511e7a3b32a86e5dda0"