expose .hasMagic() (#36)

index.js

@@ -21,8 +21,12 @@ function assertPatternsInput(patterns) {
 	}
 }
 
+function castArray(value) {
+	return Array.isArray(value) ? value : [value];
+}
+
 function generateGlobTasks(patterns, opts) {
-	patterns = Array.isArray(patterns) ? patterns : [patterns];
+	patterns = castArray(patterns);
 	assertPatternsInput(patterns);
 
 	var globTasks = [];
@@ -80,3 +84,10 @@ module.exports.sync = function (patterns, opts) {
 };
 
 module.exports.generateGlobTasks = generateGlobTasks;
+
+module.exports.hasMagic = function (patterns, opts) {
+	patterns = castArray(patterns);
+	return patterns.some(function (pattern) {
+		return glob.hasMagic(pattern, opts);
+	});
+};

readme.md

@@ -56,6 +56,12 @@ Type: `Object`
 
 See the `node-glob` [options](https://github.com/isaacs/node-glob#options).
 
+### globby.hasMagic(patterns, [options])
+
+Returns `true` if there are any special glob characters in an array of patterns.
+
+See `node-glob` hasMagic(https://github.com/isaacs/node-glob#globhasmagicpattern-options).
+
 
 ## Globbing patterns
 

test.js

@@ -70,6 +70,15 @@ test('expose generateGlobTasks', t => {
 	t.deepEqual(tasks[0].opts.ignore, ['c.tmp', 'b.tmp']);
 });
 
+test('expose hasMagic', t => {
+	t.true(m.hasMagic('**'));
+});
+
+test('hasMagic handles multiple patterns', t => {
+	t.true(m.hasMagic(['**', 'path1', 'path2']));
+	t.false(m.hasMagic(['path1', 'path2']));
+});
+
 // rejected for being an invalid pattern
 [
 	{},