2 files changed, 20 insertions, 10 deletions
diff --git a/lib/fs/index.js b/lib/fs/index.js
index 1961b07..7b8fc46 100644
--- a/lib/fs/index.js
+++ b/lib/fs/index.js
@@ -1,9 +1,10 @@
-var Q = require('q');
 var _ = require('lodash');
 var path = require('path');
 var Buffer = require('buffer').Buffer;
 var destroy = require('destroy');
 
+var Promise = require('../utils/promise');
+
 /*
 A filesystem is an interface to read/write files
 GitBook can works with a virtual filesystem, for example in the browser.
@@ -73,7 +74,7 @@ FS.prototype.listAllFiles = function(folder) {
                     });
                 }
             });
-        }, Q([]));
+        }, Promise([]));
     });
 };
 
@@ -88,7 +89,7 @@ FS.prototype.readAsString = function(filename) {
 // Write a stream to a file and returns a promise
 FS.prototype.writeStream = function(filename, stream) {
     var bufs = [];
-    var d = Q.defer();
+    var d = Promise.defer();
 
     var cleanup = function() {
         destroy(stream);
diff --git a/lib/fs/node.js b/lib/fs/node.js
index 0c470d7..28383cf 100644
--- a/lib/fs/node.js
+++ b/lib/fs/node.js
@@ -1,9 +1,10 @@
-var Q = require('q');
 var _ = require('lodash');
 var util = require('util');
 var path = require('path');
 var fs = require('fs');
+var mkdirp = require('mkdirp');
 
+var Promise = require('../utils/promise');
 var BaseFS = require('./');
 
 function NodeFS() {
@@ -13,7 +14,7 @@ util.inherits(NodeFS, BaseFS);
 
 // Check if a file exists, run a Promise(true) if that's the case, Promise(false) otherwise
 NodeFS.prototype.exists = function(filename) {
-    var d = Q.defer();
+    var d = Promise.defer();
 
     fs.exists(filename, function(exists) {
         d.resolve(exists);
@@ -24,17 +25,25 @@ NodeFS.prototype.exists = function(filename) {
 
 // Read a file and returns a promise with the content as a buffer
 NodeFS.prototype.read = function(filename) {
-    return Q.nfcall(fs.readFile, filename);
+    return Promise.nfcall(fs.readFile, filename);
 };
 
 // Write a file and returns a promise
 NodeFS.prototype.write = function(filename, buffer) {
-    return Q.nfcall(fs.writeFile, filename, buffer);
+    var folder = path.dirname(filename);
+    return Promise()
+    .then(function() {
+        if (!folder) return;
+        return Promise.nfcall(mkdirp, folder);
+    })
+    .then(function() {
+        return Promise.nfcall(fs.writeFile, filename, buffer);
+    });
 };
 
 // List files in a directory
 NodeFS.prototype.readdir = function(folder) {
-    return Q.nfcall(fs.readdir, folder)
+    return Promise.nfcall(fs.readdir, folder)
     .then(function(files) {
         return _.chain(files)
             .map(function(file) {
@@ -51,7 +60,7 @@ NodeFS.prototype.readdir = function(folder) {
 
 // Load a JSON/JS file
 NodeFS.prototype.loadAsObject = function(filename) {
-    return Q()
+    return Promise()
     .then(function() {
         var jsFile;
 
@@ -64,7 +73,7 @@ NodeFS.prototype.loadAsObject = function(filename) {
             return require(jsFile);
         }
         catch(err) {
-            return Q.reject(err);
+            return Promise.reject(err);
         }
     });
 };