revert to v1.0.2 and add bluebird as dep

index.js

@@ -1,25 +1,7 @@
 'use strict';
 
-var PromiseA;
-try {
-  PromiseA = require('bluebird');
-} catch(e) {
-  PromiseA = global.Promise;
-}
-
-var util = require('util');
-var promisify = util.promisify || PromiseA.promisify;
-if (!PromiseA || !promisify) {
-  throw new Error("DON'T PANIC. Everything is A-OK."
-    + " However, you're on a really old version of node. All you need to do is `npm install --save bluebird`"
-    + " (in your project directory, which is probably '" + require('path').dirname(require.main.filename) + "')"
-    + " and everything will work just fine.");
-}
-
-var fs = require('fs');
-var writeFileAsync = promisify(fs.writeFile);
-var unlinkAsync = promisify(fs.unlink);
-var renameAsync = promisify(fs.rename);
+var PromiseA = require('bluebird').Promise;
+var fs = PromiseA.promisifyAll(require('fs'));
 var crypto = require('crypto');
 
 function noop() {
@@ -62,23 +44,23 @@ function create(options) {
   , stageAsync: function (filename, data, options) {
       var tmpname = tmpnamefn(filename);
       //console.log(tmpname);
-      return writeFileAsync(tmpname, data, options).then(function () {
+      return fs.writeFileAsync(tmpname, data, options).then(function () {
         return tmpname;
       });
     }
   , commitAsync: function (tmpname, filename) {
       var bakname = baknamefn(filename);
       // this may not exist
-      return unlinkAsync(bakname).then(noop, noop).then(function () {
+      return fs.unlinkAsync(bakname).then(noop, noop).then(function () {
         // this may not exist
         //console.log(namefn(filename), '->', bakname);
-        return renameAsync(filename, bakname).then(function () {
+        return fs.renameAsync(filename, bakname).then(function () {
           //console.log('created bak');
         }, noop);
       }).then(function () {
         // this must be successful
         //console.log(filename, '->', filename);
-        return renameAsync(tmpname, filename).then(noop, function (err) {
+        return fs.renameAsync(tmpname, filename).then(noop, function (err) {
           //console.error(err);
           return sfs.revert(filename).then(function () {
             return PromiseA.reject(err);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "safe-replace",
-  "version": "1.1.0",
+  "version": "1.0.4",
   "description": "A micro-module for safely replacing a file.",
   "main": "index.js",
   "scripts": {
@@ -25,5 +25,8 @@
   "bugs": {
     "url": "https://git.coolaj86.com/coolaj86/fs-safe-replace.js/issues"
   },
-  "homepage": "https://git.coolaj86.com/coolaj86/fs-safe-replace.jse"
+  "homepage": "https://git.coolaj86.com/coolaj86/fs-safe-replace.jse",
+  "dependencies": {
+    "bluebird": "^3.5.2"
+  }
 }