Move default ESLint cache to node_modules/.cache/xo. (#351)

Fixes #335

Author: coreyfarrell

lib/options-manager.js

@@ -6,6 +6,7 @@ const mergeWith = require('lodash.mergewith');
 const multimatch = require('multimatch');
 const pathExists = require('path-exists');
 const pkgConf = require('pkg-conf');
+const findCacheDir = require('find-cache-dir');
 const resolveFrom = require('resolve-from');
 const prettier = require('prettier');
 const semver = require('semver');
@@ -29,7 +30,7 @@ const DEFAULT_EXTENSION = [
 const DEFAULT_CONFIG = {
 	useEslintrc: false,
 	cache: true,
-	cacheLocation: path.join(os.homedir() || os.tmpdir(), '.xo-cache/'),
+	cacheLocation: findCacheDir({name: 'xo'}) || path.join(os.homedir() || os.tmpdir(), '.xo-cache/'),
 	globInputPaths: false,
 	baseConfig: {
 		extends: [

package.json

@@ -63,6 +63,7 @@
 		"eslint-plugin-prettier": "^2.6.0",
 		"eslint-plugin-promise": "^4.0.0",
 		"eslint-plugin-unicorn": "^6.0.1",
+		"find-cache-dir": "^2.0.0",
 		"get-stdin": "^6.0.0",
 		"globby": "^8.0.0",
 		"has-flag": "^3.0.0",

test/options-manager.js

@@ -42,7 +42,7 @@ test('normalizeOpts: falsie values stay falsie', t => {
 
 test('buildConfig: defaults', t => {
 	const config = manager.buildConfig({});
-	t.true(/[\\/]\.xo-cache[\\/]?$/u.test(config.cacheLocation));
+	t.true(/[\\/]\.cache\/xo[\\/]?$/u.test(config.cacheLocation));
 	t.is(config.useEslintrc, false);
 	t.is(config.cache, true);
 	t.is(config.baseConfig.extends[0], 'xo/esnext');