Make cache directory be relative to cwd (#582)

Co-authored-by: Sindre Sorhus <[email protected]>

Author: spence-s

lib/options-manager.js

@@ -49,12 +49,12 @@ resolveFrom.silent = (moduleId, fromDirectory) => {
 const resolveLocalConfig = name => resolveModule(normalizePackageName(name, 'eslint-config'), import.meta.url);
 
 const nodeVersion = process && process.version;
-const cacheLocation = findCacheDir({name: CACHE_DIR_NAME}) || path.join(os.homedir() || os.tmpdir(), '.xo-cache/');
+const cacheLocation = cwd => findCacheDir({name: CACHE_DIR_NAME, cwd}) || path.join(os.homedir() || os.tmpdir(), '.xo-cache/');
 
 const DEFAULT_CONFIG = {
 	useEslintrc: false,
 	cache: true,
-	cacheLocation: path.join(cacheLocation, 'xo-cache.json'),
+	cacheLocation: path.join(cacheLocation(), 'xo-cache.json'),
 	globInputPaths: false,
 	baseConfig: {
 		extends: [
@@ -131,7 +131,7 @@ const mergeWithFileConfig = options => {
 		const tsConfigExplorer = cosmiconfigSync([], {searchPlaces: ['tsconfig.json'], loaders: {'.json': (_, content) => JSON5.parse(content)}});
 		const {config: tsConfig, filepath: tsConfigPath} = tsConfigExplorer.search(options.filePath) || {};
 
-		options.tsConfigPath = getTsConfigCachePath([options.filePath], options.tsConfigPath);
+		options.tsConfigPath = getTsConfigCachePath([options.filePath], options.tsConfigPath, options.cwd);
 		options.ts = true;
 		outputJsonSync(options.tsConfigPath, makeTSConfig(tsConfig, tsConfigPath, [options.filePath]));
 	}
@@ -187,7 +187,7 @@ const mergeWithFileConfigs = async (files, options, configFiles) => {
 	await Promise.all(Object.entries(groupBy(groups.filter(({options}) => Boolean(options.ts)), group => group.options.tsConfigPath || '')).map(
 		([tsConfigPath, groups]) => {
 			const files = groups.flatMap(group => group.files);
-			const cachePath = getTsConfigCachePath(files, tsConfigPath);
+			const cachePath = getTsConfigCachePath(files, tsConfigPath, options.cwd);
 
 			for (const group of groups) {
 				group.options.tsConfigPath = cachePath;
@@ -206,8 +206,8 @@ const findApplicableConfig = (file, configFiles) => configFiles.find(({filepath}
 Generate a unique and consistent path for the temporary `tsconfig.json`.
 Hashing based on https://github.com/eslint/eslint/blob/cf38d0d939b62f3670cdd59f0143fd896fccd771/lib/cli-engine/lint-result-cache.js#L30
 */
-const getTsConfigCachePath = (files, tsConfigPath) => path.join(
-	cacheLocation,
+const getTsConfigCachePath = (files, tsConfigPath, cwd) => path.join(
+	cacheLocation(cwd),
 	`tsconfig.${murmur(`${pkg.version}_${nodeVersion}_${stringify({files: files.sort(), tsConfigPath})}`).result().toString(36)}.json`,
 );
 

test/options-manager.js

@@ -554,6 +554,8 @@ test('mergeWithFileConfig: typescript files', async t => {
 		semicolon: false,
 		ts: true,
 	};
+	const expectedConfigPath = new RegExp(`${slash(cwd)}/node_modules/.cache/xo-linter/tsconfig\\..*\\.json[\\/]?$`, 'u');
+	t.regex(slash(options.tsConfigPath), expectedConfigPath);
 	t.deepEqual(omit(options, 'tsConfigPath'), expected);
 	t.deepEqual(await readJson(options.tsConfigPath), {
 		extends: path.resolve(cwd, 'tsconfig.json'),
@@ -574,6 +576,8 @@ test('mergeWithFileConfig: tsx files', async t => {
 		semicolon: false,
 		ts: true,
 	};
+	const expectedConfigPath = new RegExp(`${slash(cwd)}/node_modules/.cache/xo-linter/tsconfig\\..*\\.json[\\/]?$`, 'u');
+	t.regex(slash(options.tsConfigPath), expectedConfigPath);
 	t.deepEqual(omit(options, 'tsConfigPath'), expected);
 	t.deepEqual(await readJson(options.tsConfigPath), {
 		extends: path.resolve(cwd, 'tsconfig.json'),