Don't throw when specifying a non-existing cwd directory (#125)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>

index.js

@@ -18,8 +18,19 @@ const assertPatternsInput = patterns => {
 	}
 };
 
-const checkCwdOption = options => {
-	if (options && options.cwd && !fs.statSync(options.cwd).isDirectory()) {
+const checkCwdOption = (options = {}) => {
+	if (!options.cwd) {
+		return;
+	}
+
+	let stat;
+	try {
+		stat = fs.statSync(options.cwd);
+	} catch (_) {
+		return;
+	}
+
+	if (!stat.isDirectory()) {
 		throw new Error('The `cwd` option must be a path to a directory');
 	}
 };

test.js

@@ -362,3 +362,13 @@ test('throws when specifying a file as cwd - stream', t => {
 		globby.stream('*', {cwd: isFile});
 	}, 'The `cwd` option must be a path to a directory');
 });
+
+test('don\'t throw when specifying a non-existing cwd directory - async', async t => {
+	const actual = await globby('.', {cwd: '/unknown'});
+	t.is(actual.length, 0);
+});
+
+test('don\'t throw when specifying a non-existing cwd directory - sync', t => {
+	const actual = globby.sync('.', {cwd: '/unknown'});
+	t.is(actual.length, 0);
+});