fix(cli-hooks): silence node warnings that can break @slack/cli-hooks (#2096)

Author: mwbrooks

packages/cli-hooks/README.md

@@ -76,7 +76,7 @@ Below is an example `slack.json` file that overrides the default `start` hook:
 ```json
 {
   "hooks": {
-    "get-hooks": "npx -q --no-install -p @slack/cli-hooks slack-cli-get-hooks",
+    "get-hooks": "NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-get-hooks",
     "start": "npm run dev"
   }
 }

packages/cli-hooks/src/get-hooks.js

@@ -43,11 +43,13 @@ if (fs.realpathSync(process.argv[1]) === fileURLToPath(import.meta.url)) {
  * @returns {SDKInterface} Information about the hooks currently supported.
  */
 export default function getHooks() {
+  // NODE_NO_WARNINGS=1 silences node process warnings. These warnings can occur
+  // on some node version (e.g. v23.2.0) and cause invalid JSON hook responses.
   return {
     hooks: {
-      doctor: 'npx -q --no-install -p @slack/cli-hooks slack-cli-doctor',
-      'check-update': 'npx -q --no-install -p @slack/cli-hooks slack-cli-check-update',
-      'get-manifest': 'npx -q --no-install -p @slack/cli-hooks slack-cli-get-manifest',
+      doctor: 'NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-doctor',
+      'check-update': 'NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-check-update',
+      'get-manifest': 'NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-get-manifest',
       start: 'npx -q --no-install -p @slack/cli-hooks slack-cli-start',
     },
     config: {

packages/cli-hooks/src/get-hooks.spec.js

@@ -6,9 +6,13 @@ import getHooks from './get-hooks.js';
 describe('get-hooks implementation', async () => {
   it('should return scripts for required hooks', async () => {
     const { hooks } = getHooks();
-    assert(hooks.doctor === 'npx -q --no-install -p @slack/cli-hooks slack-cli-doctor');
-    assert(hooks['check-update'] === 'npx -q --no-install -p @slack/cli-hooks slack-cli-check-update');
-    assert(hooks['get-manifest'] === 'npx -q --no-install -p @slack/cli-hooks slack-cli-get-manifest');
+    assert(hooks.doctor === 'NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-doctor');
+    assert(
+      hooks['check-update'] === 'NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-check-update',
+    );
+    assert(
+      hooks['get-manifest'] === 'NODE_NO_WARNINGS=1 npx -q --no-install -p @slack/cli-hooks slack-cli-get-manifest',
+    );
     assert(hooks.start === 'npx -q --no-install -p @slack/cli-hooks slack-cli-start');
   });
 

packages/cli-hooks/src/protocols.js

@@ -42,7 +42,7 @@ export function DefaultProtocol(args) {
   // If the particular hook invocation is requesting manifest generation we
   // ensure any logging is a no-op to prevent littering stdout with logging
   // and confusing the CLI's manifest JSON payload parsing.
-  const loggerMethod = manifestOnly ? () => { } : console.log;
+  const loggerMethod = manifestOnly ? () => {} : console.log;
   return {
     name: DEFAULT_PROTOCOL,
     log: loggerMethod,