Clarify caching

Author: mcecode

docs/05-command-line.md

@@ -218,7 +218,7 @@ When running a file with and without line numbers, line numbers take precedence.
 
 ## Resetting AVA's cache
 
-AVA may cache certain files, especially when you use our [`@ava/babel`](https://github.com/avajs/babel) provider. If it seems like your latest changes aren't being picked up by AVA you can reset the cache by running:
+AVA itself does not cache files unless used with our [`@ava/babel`](https://github.com/avajs/babel) provider. If it seems like your latest changes aren't being picked up by AVA you can try resetting the cache by running:
 
 ```console
 npx ava reset-cache

docs/06-configuration.md

@@ -45,7 +45,7 @@ Arguments passed to the CLI will always take precedence over the CLI options con
 - `files`: an array of glob patterns to select test files. Files with an underscore prefix are ignored. By default only selects files with `cjs`, `mjs` & `js` extensions, even if the pattern matches other files. Specify `extensions` to allow other file extensions
 - `ignoredByWatcher`: an array of glob patterns to match files that, even if changed, are ignored by the watcher. See the [watch mode recipe for details](https://github.com/avajs/ava/blob/main/docs/recipes/watch-mode.md)
 - `match`: not typically useful in the `package.json` configuration, but equivalent to [specifying `--match` on the CLI](./05-command-line.md#running-tests-with-matching-titles)
-- `cache`: cache compiled files under `node_modules/.cache/ava`. If `false`, files are cached in a temporary directory instead
+- `cache`: defaults to `true` to cache compiled files under `node_modules/.cache/ava`. If `false`, files are cached in a temporary directory instead
 - `concurrency`: max number of test files running at the same time (default: CPU cores)
 - `workerThreads`: use worker threads to run tests (requires AVA 4, enabled by default). If `false`, tests will run in child processes (how AVA 3 behaves)
 - `failFast`: stop running further tests once a test fails

lib/cli.js

@@ -244,18 +244,20 @@ export default async () => { // eslint-disable-line complexity
 	const {nonSemVerExperiments: experiments, projectDir} = conf;
 	if (resetCache) {
 		const cacheDir = path.join(projectDir, 'node_modules', '.cache', 'ava');
+
 		try {
-			await del('*', {
-				cwd: cacheDir,
-				nodir: true
-			});
-			console.error(`\n${chalk.green(figures.tick)} Removed AVA cache files in ${cacheDir}`);
+			const deletedFilePaths = await del('*', {cwd: cacheDir});
+
+			if (deletedFilePaths.length === 0) {
+				console.log(`\n${chalk.green(figures.tick)} No cache files to remove`);
+			} else {
+				console.log(`\n${chalk.green(figures.tick)} Removed AVA cache files in ${cacheDir}`);
+			}
+
 			process.exit(0); // eslint-disable-line unicorn/no-process-exit
 		} catch (error) {
 			exit(`Error removing AVA cache files in ${cacheDir}\n\n${chalk.gray((error && error.stack) || error)}`);
 		}
-
-		return;
 	}
 
 	if (argv.watch) {