Merge branch '33886-resolve-fsevents-issues' into 'master'

Resolve "100% CPU for webpack-dev-server running in GDK"

Closes #33886

See merge request gitlab-org/gitlab-ce!20113

.nvmrc

-9.0.0
+8.11.3

package.json

@@ -9,6 +9,7 @@
     "karma": "BABEL_ENV=${BABEL_ENV:=karma} karma start --single-run true config/karma.config.js",
     "karma-coverage": "BABEL_ENV=coverage karma start --single-run true config/karma.config.js",
     "karma-start": "BABEL_ENV=karma karma start config/karma.config.js",
+    "postinstall": "node ./scripts/frontend/postinstall.js",
     "prettier-staged": "node ./scripts/frontend/prettier.js",
     "prettier-staged-save": "node ./scripts/frontend/prettier.js save",
     "prettier-all": "node ./scripts/frontend/prettier.js check-all",

scripts/frontend/postinstall.js

+const chalk = require('chalk');
+
+// check that fsevents is available if we're on macOS
+if (process.platform === 'darwin') {
+  try {
+    require.resolve('fsevents');
+  } catch (e) {
+    console.error(`${chalk.red('error')} Dependency postinstall check failed.`);
+    console.error(
+      chalk.red(`
+        The fsevents driver is not installed properly.
+        If you are running a new version of Node, please
+        ensure that it is supported by the fsevents library.
+
+        You can try installing again with \`${chalk.cyan('yarn install --force')}\`
+      `)
+    );
+    process.exit(1);
+  }
+}
+
+console.log(`${chalk.green('success')} Dependency postinstall check passed.`);