feat: improve error reporting on aarch64 (#5167)

* feat: support aarch64 architecture

This patch provides architecture check for aarch64 to use local chromium binary.

Fixes #5147

install.js

@@ -25,6 +25,7 @@
  */
 
 const compileTypeScriptIfRequired = require('./typescript-if-required');
+const os = require('os');
 
 const firefoxVersions =
   'https://product-details.mozilla.org/1.0/firefox_versions.json';
@@ -99,9 +100,11 @@ async function download() {
      * @return {!Promise}
      */
     function onSuccess(localRevisions) {
-      logPolitely(
+      if (os.arch() !== 'arm64') {
-        `${supportedProducts[product]} (${revisionInfo.revision}) downloaded to ${revisionInfo.folderPath}`
+        logPolitely(
-      );
+          `${supportedProducts[product]} (${revisionInfo.revision}) downloaded to ${revisionInfo.folderPath}`
+        );
+      }
       localRevisions = localRevisions.filter(
         (revision) => revision !== revisionInfo.revision
       );

src/BrowserFetcher.ts

@@ -101,6 +101,16 @@ function downloadURL(
   return url;
 }
 
+function handleArm64() {
+  fs.stat('/usr/bin/chromium-browser', function (err, stats) {
+    if (stats === undefined) {
+      console.error(`The chromium binary is not available for arm64: `);
+      console.error(`If you are on Ubuntu, you can install with: `);
+      console.error(`\n apt-get install chromium-browser\n`);
+      throw new Error();
+    }
+  });
+}
 const readdirAsync = helper.promisify(fs.readdir.bind(fs));
 const mkdirAsync = helper.promisify(fs.mkdir.bind(fs));
 const unlinkAsync = helper.promisify(fs.unlink.bind(fs));
@@ -219,6 +229,10 @@ export class BrowserFetcher {
     if (await existsAsync(outputPath)) return this.revisionInfo(revision);
     if (!(await existsAsync(this._downloadsFolder)))
       await mkdirAsync(this._downloadsFolder);
+    if (os.arch() === 'arm64') {
+      handleArm64();
+      return;
+    }
     try {
       await downloadFile(url, archivePath, progressCallback);
       await install(archivePath, outputPath);

src/Launcher.ts

@@ -106,7 +106,9 @@ class ChromeLauncher implements ProductLauncher {
     }
 
     let chromeExecutable = executablePath;
-    if (!executablePath) {
+    if (os.arch() === 'arm64') {
+      chromeExecutable = '/usr/bin/chromium-browser';
+    } else if (!executablePath) {
       const { missingText, executablePath } = resolveExecutablePath(this);
       if (missingText) throw new Error(missingText);
       chromeExecutable = executablePath;