feat(cli): exposed synth's quiet option in cdk.json (#24793)

The `quiet` option for `synth` can now be specified in `cdk.json` as:
```
{
  "quiet": true
}
```

Closes #24251

----

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

Author: lpizzinidev

packages/@aws-cdk-testing/cli-integ/tests/cli-integ-tests/cli.integtest.ts

@@ -717,6 +717,17 @@ integTest('synthing a stage with errors can be suppressed', withDefaultFixture(a
   });
 }));
 
+integTest('synth --quiet can be specified in cdk.json', withDefaultFixture(async (fixture) => {
+  let cdkJson = JSON.parse(await fs.readFile(path.join(fixture.integTestDir, 'cdk.json'), 'utf8'));
+  cdkJson = {
+    ...cdkJson,
+    quiet: true,
+  };
+  await fs.writeFile(path.join(fixture.integTestDir, 'cdk.json'), JSON.stringify(cdkJson));
+  const synthOutput = await fixture.cdk(['synth', fixture.fullStackName('test-2')]);
+  expect(synthOutput).not.toContain('topic152D84A37');
+}));
+
 integTest('deploy stack without resource', withDefaultFixture(async (fixture) => {
   // Deploy the stack without resources
   await fixture.cdkDeploy('conditional-resource', { modEnv: { NO_RESOURCE: 'TRUE' } });

packages/aws-cdk/README.md

@@ -131,6 +131,14 @@ $ # Synthesize cloud assembly for StackName, but don't cloudFormation template o
 $ cdk synth MyStackName --quiet
 ```
 
+The `quiet` option can be set in the `cdk.json` file.
+
+```json
+{
+  "quiet": true
+}
+```
+
 See the [AWS Documentation](https://docs.aws.amazon.com/cdk/latest/guide/apps.html#apps_cloud_assembly) to learn more about cloud assemblies.
 See the [CDK reference documentation](https://docs.aws.amazon.com/cdk/api/latest/docs/cloud-assembly-schema-readme.html) for details on the cloud assembly specification
 

packages/aws-cdk/lib/cli.ts

@@ -622,10 +622,11 @@ export async function exec(args: string[], synthesizer?: Synthesizer): Promise<n
 
       case 'synthesize':
       case 'synth':
+        const quiet = configuration.settings.get(['quiet']) ?? args.quiet;
         if (args.exclusively) {
-          return cli.synth(args.STACKS, args.exclusively, args.quiet, args.validation, argv.json);
+          return cli.synth(args.STACKS, args.exclusively, quiet, args.validation, argv.json);
         } else {
-          return cli.synth(args.STACKS, true, args.quiet, args.validation, argv.json);
+          return cli.synth(args.STACKS, true, quiet, args.validation, argv.json);
         }
 
       case 'notices':

packages/aws-cdk/test/usersettings.test.ts

@@ -89,4 +89,26 @@ test('throws an error if the `build` key is specified in the user config', async
 
   // THEN
   await expect(new Configuration().load()).rejects.toEqual(new Error('The `build` key cannot be specified in the user config (~/.cdk.json), specify it in the project config (cdk.json) instead'));
+});
+
+test('Can specify the `quiet` key in the user config', async () => {
+  // GIVEN
+  const GIVEN_CONFIG: Map<string, any> = new Map([
+    [USER_CONFIG, {
+      quiet: true,
+    }],
+  ]);
+
+  // WHEN
+  mockedFs.pathExists.mockImplementation(path => {
+    return GIVEN_CONFIG.has(path);
+  });
+  mockedFs.readJSON.mockImplementation(path => {
+    return GIVEN_CONFIG.get(path);
+  });
+
+  // THEN
+  const config = await new Configuration().load();
+
+  expect(config.settings.get(['quiet'])).toBe(true);
 });