1 files changed, 9 insertions, 11 deletions
diff --git a/lib/book.js b/lib/book.js
index 91dfa02..77539ce 100644
--- a/lib/book.js
+++ b/lib/book.js
@@ -1,5 +1,4 @@
 var _ = require('lodash');
-var Q = require('q');
 var path = require('path');
 var Ignore = require('ignore');
 var parsers = require('gitbook-parsers');
@@ -12,6 +11,7 @@ var Summary = require('./backbone/summary');
 var Langs = require('./backbone/langs');
 var Page = require('./backbone/page');
 var pathUtil = require('./utils/path');
+var Promise = require('./utils/promise');
 
 function Book(opts) {
     if (!(this instanceof Book)) return new Book(opts);
@@ -106,25 +106,23 @@ Book.prototype.resolve = function() {
 Book.prototype.parseIgnoreRules = function() {
     var that = this;
 
-    return _.reduce([
+    return Promise.series([
         '.ignore',
         '.gitignore',
         '.bookignore'
-    ], function(prev, filename) {
-        return prev.then(function() {
-            return that.readFile(filename);
-        })
+    ], function(filename) {
+        return that.readFile(filename)
         .then(function(content) {
             that.ignore.addPattern(content.toString().split(/\r?\n/));
         });
-    }, Q());
+    });
 };
 
 // Parse the whole book
 Book.prototype.parse = function() {
     var that = this;
 
-    return Q()
+    return Promise()
     .then(this.prepareConfig)
     .then(this.parseIgnoreRules)
 
@@ -139,7 +137,7 @@ Book.prototype.parse = function() {
             return;
         }
 
-        return Q()
+        return Promise()
         .then(that.readme.load)
         .then(function() {
             if (that.readme.exists()) return;
@@ -185,7 +183,7 @@ Book.prototype.isFileIgnored = function(filename) {
 
 // Read a file in the book, throw error if ignored
 Book.prototype.readFile = function(filename) {
-    if (this.isFileIgnored(filename)) return Q.reject(new Error('File "'+filename+'" is ignored'));
+    if (this.isFileIgnored(filename)) return Promise.reject(new Error('File "'+filename+'" is ignored'));
     return this.fs.readAsString(this.resolve(filename));
 };
 
@@ -217,7 +215,7 @@ Book.prototype.findParsableFile = function(filename) {
                 };
             });
         });
-    }, Q(null));
+    }, Promise(null));
 };
 
 // Return true if book is associated to a language