Drop support for node <4

.travis.yml

@@ -4,12 +4,7 @@ os:
   - osx
 language: node_js
 node_js:
-  - node
-  - '9'
+  - '10'
   - '8'
-  - '7'
   - '6'
-  - '5'
   - '4'
-  - '0.12'
-  - '0.10'

appveyor.yml

@@ -2,12 +2,10 @@
 environment:
   matrix:
     # node.js
+    - nodejs_version: "10.0"
     - nodejs_version: "8.0"
-    - nodejs_version: "7.0"
     - nodejs_version: "6.0"
-    - nodejs_version: "5.0"
-    - nodejs_version: "0.12"
-    - nodejs_version: "0.10"
+    - nodejs_version: "4.0"
 
 # Install scripts. (runs after repo cloning)
 install:

index.js

@@ -4,7 +4,6 @@
  * Module dependencies
  */
 
-var extend = require('extend-shallow');
 var unique = require('array-unique');
 var toRegex = require('to-regex');
 
@@ -156,7 +155,7 @@ extglob.contains = function(str, pattern, options) {
     return pattern === str;
   }
 
-  var opts = extend({}, options, {contains: true});
+  var opts = Object.assign({}, options, {contains: true});
   opts.strictClose = false;
   opts.strictOpen = false;
   return extglob.isMatch(str, pattern, opts);
@@ -246,7 +245,7 @@ extglob.create = function(pattern, options) {
  */
 
 extglob.capture = function(pattern, str, options) {
-  var re = extglob.makeRe(pattern, extend({capture: true}, options));
+  var re = extglob.makeRe(pattern, Object.assign({capture: true}, options));
 
   function match() {
     return function(string) {
@@ -292,7 +291,7 @@ extglob.makeRe = function(pattern, options) {
   }
 
   function makeRe() {
-    var opts = extend({strictErrors: false}, options);
+    var opts = Object.assign({strictErrors: false}, options);
     if (opts.strictErrors === true) opts.strict = true;
     var res = extglob.create(pattern, opts);
     return toRegex(res.output, opts);

lib/extglob.js

@@ -7,7 +7,6 @@
 var Snapdragon = require('snapdragon');
 var capture = require('snapdragon-capture');
 var define = require('define-property');
-var extend = require('extend-shallow');
 
 /**
  * Local dependencies
@@ -21,7 +20,7 @@ var parsers = require('./parsers');
  */
 
 function Extglob(options) {
-  this.options = extend({source: 'extglob'}, options);
+  this.options = Object.assign({source: 'extglob'}, options);
   this.snapdragon = this.options.snapdragon || new Snapdragon(this.options);
   this.snapdragon.use(capture());
   this.snapdragon.patterns = this.snapdragon.patterns || {};

package.json

@@ -24,7 +24,7 @@
   ],
   "main": "index.js",
   "engines": {
-    "node": ">=0.10.0"
+    "node": ">=4.0.0"
   },
   "scripts": {
     "test": "mocha"
@@ -33,7 +33,6 @@
     "array-unique": "^0.3.2",
     "define-property": "^2.0.2",
     "expand-brackets": "^4.0.0",
-    "extend-shallow": "^3.0.2",
     "fragment-cache": "^0.2.1",
     "regex-not": "^1.0.0",
     "snapdragon": "^0.12.0",