Drop support for Node 4, 6, 7, and 9

.travis.yml

@@ -3,10 +3,8 @@ dist: trusty
 
 language: node_js
 node_js:
-  - "4"
-  - "6"
-  - "7"
-  - "8"
+  - "10"
+  - "12"
 
 cache:
   yarn: true

appveyor.yml

@@ -4,10 +4,8 @@
 environment:
   MOCHA_REPORTER: "mocha-appveyor-reporter"
   matrix:
-    - nodejs_version: "4"
-    - nodejs_version: "6"
-    - nodejs_version: "7"
-    - nodejs_version: "8"
+    - nodejs_version: "10"
+    - nodejs_version: "12"
 
 # Install scripts. (runs after repo cloning)
 install:

index.js

@@ -48,6 +48,18 @@ function isNotAPattern(pattern) {
   return true;
 }
 
+function pathExists(path) {
+  // creating this function to check if file exist because of issue in node 10+
+  // ref: https://github.com/nodejs/node/issues/30538
+  try {
+    fs.accessSync(path);
+    fs.statSync(path);
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
 Funnel.prototype = Object.create(Plugin.prototype);
 Funnel.prototype.constructor = Funnel;
 function Funnel(inputNode, _options) {
@@ -219,7 +231,7 @@ Funnel.prototype.build = function() {
      */
 
     // This is specifically looking for broken symlinks.
-    let outputPathExists = fs.existsSync(this.outputPath);
+    let outputPathExists = pathExists(this.outputPath);
 
     // Doesn't count as a rebuild if there's not an existing outputPath.
     this._isRebuild = this._isRebuild && outputPathExists;

package.json

@@ -13,7 +13,7 @@
     "index.js"
   ],
   "engines": {
-    "node": "^4.5 || 6.* || >= 7.*"
+    "node": "10.* || >= 12.*"
   },
   "scripts": {
     "test": "mocha tests/",

tests/index.js

@@ -2,11 +2,9 @@
 
 const fs = require('fs-extra');
 const path = require('path');
-const RSVP = require('rsvp');
 const expect = require('chai').expect;
 const walkSync = require('walk-sync');
 const broccoli = require('broccoli-builder');
-const rimraf = RSVP.denodeify(require('rimraf'));
 const fixturify = require('fixturify');
 
 require('mocha-eslint')([
@@ -463,7 +461,7 @@ describe('broccoli-funnel', function() {
 
       builder = new broccoli.Builder(node);
       return builder.build()
-        .then(() => rimraf(node.outputPath))
+        .then(() => fs.removeSync(node.outputPath))
         .then(() => {
           fs.symlinkSync('foo/bar/baz.js', node.outputPath);
         })