Drop async dependency

Author: cjohansen

lib/multi-glob.js

@@ -1,5 +1,4 @@
 var glob = require("glob");
-var async = require("async");
 
 exports._glob = glob;
 
@@ -21,30 +20,28 @@ function array(arr) {
 
 function resolveGlobs(patterns, options) {
     options = options || {};
-    return array(patterns).reduce(function (fns, pattern) {
-        fns.push(function (done) {
-            exports._glob(pattern, options, function (err, matches) {
-                if (!err && options.strict && matches.length === 0) {
-                    done(new Error("'" + pattern + "' matched no files"));
-                } else {
-                    done(err, matches);
-                }
+    return Promise.all(
+        array(patterns).map(pattern => new Promise((resolve, reject) => {
+            exports._glob(pattern, options, (err, matches) => {
+              if (!err && options.strict && matches.length === 0) {
+                  reject(new Error("'" + pattern + "' matched no files"));
+              } else if (err) {
+                  reject(err);
+              } else {
+                  resolve(matches);
+              }
             });
-        });
-        return fns;
-    }, []);
-}
-
-function processSingle(callback) {
-    return function (err, matches) {
-        callback(err, uniq(flatten(array(matches))));
-    };
+        }))
+    );
 }
 
 exports.glob = function (patterns, options, cb) {
   if (typeof options === "function") {
     cb = options;
     options = null;
   }
-  async.parallel(resolveGlobs(patterns, options), processSingle(cb));
+
+  resolveGlobs(patterns, options)
+    .then(matches => cb(null, uniq(flatten(array(matches)))))
+    .catch(err => cb(err));
 };

package-lock.json

@@ -31,8 +31,7 @@
     "node": ">= 6"
   },
   "dependencies": {
-    "glob": "5.x",
-    "async": "1.x"
+    "glob": "5.x"
   },
   "devDependencies": {
     "@sinonjs/referee-sinon": "^4.1.0",

package.json

@@ -41,7 +41,6 @@ describe("Multi-glob", function () {
   });
 
   it("calls callback with result from glob", function (done) {
-    var callback = sinon.spy();
     nodeGlobStub.yields(null, ["lib/buster.js"]);
 
     multiGlob.glob("lib/buster.js", function (err, res) {