Use bluebird instead of q for better performance

7 files changed, 30 insertions, 15 deletions

diff --git a/lib/document-to-html.js b/lib/document-to-html.js
index 8033d8b..6eef821 100644
--- a/lib/document-to-html.js
+++ b/lib/document-to-html.js
@@ -1,4 +1,4 @@
-var q = require("q");
+var promises = require("./promises");
 var async = require("async");
 
 var htmlPaths = require("./html-paths");
@@ -18,7 +18,7 @@ function DocumentConverter(options) {
         var messages = [];
         var html = new HtmlGenerator();
         
-        return q.nfcall(elementToHtml, document, html, messages).then(function() {
+        return promises.nfcall(elementToHtml, document, html, messages).then(function() {
             html.closeAll();
             
             return new results.Result(html.asString(), messages);
diff --git a/lib/document-xml-reader.js b/lib/document-xml-reader.js
index f4701db..8937374 100644
--- a/lib/document-xml-reader.js
+++ b/lib/document-xml-reader.js
@@ -1,6 +1,6 @@
 exports.DocumentXmlReader = DocumentXmlReader;
 
-var q = require("q");
+var promises = require("./promises");
 var _ = require("underscore");
 
 var documents = require("./documents");
diff --git a/lib/docx-reader.js b/lib/docx-reader.js
index a020ec8..e36ab10 100644
--- a/lib/docx-reader.js
+++ b/lib/docx-reader.js
@@ -1,6 +1,6 @@
 exports.read = read;
 
-var q = require("q");
+var promises = require("./promises");
 var unzip = require("./unzip");
 
 var readXmlFromZipFile = require("./office-xml-reader").readXmlFromZipFile;
@@ -13,8 +13,8 @@ var readNumberingFromZipFile = require("./numbering-xml").readNumberingFromZipFi
 
 function read(options) {
     var docxFile = unzip.openZip(options);
-    return q.when(docxFile, function(docxFile) {
-        return q.all([
+    return promises.when(docxFile).then(function(docxFile) {
+        return promises.all([
             readRelationshipsFromZipFile(docxFile),
             readContentTypesFromZipFile(docxFile),
             readNumberingFromZipFile(docxFile),
diff --git a/lib/office-xml-reader.js b/lib/office-xml-reader.js
index 04b73fb..fa67c41 100644
--- a/lib/office-xml-reader.js
+++ b/lib/office-xml-reader.js
@@ -1,4 +1,4 @@
-var q = require("q");
+var promises = require("./promises");
 
 var xmlreader = require("./xmlreader");
 
@@ -25,6 +25,6 @@ function readXmlFromZipFile(docxFile, path) {
         return docxFile.read(path, "utf-8")
             .then(read);
     } else {
-        return q.resolve(null);
+        return promises.resolve(null);
     }
 }
diff --git a/lib/promises.js b/lib/promises.js
new file mode 100644
index 0000000..2dfc77a
--- /dev/null
+++ b/lib/promises.js
@@ -0,0 +1,15 @@
+var bluebird = require("bluebird/js/main/promise")();
+var _ = require("underscore");
+
+exports.defer = bluebird.defer;
+exports.when = bluebird.resolve;
+exports.resolve = bluebird.resolve;
+exports.all = bluebird.all;
+
+exports.nfcall = function(func) {
+    var args = Array.prototype.slice.call(arguments, 1);
+    var promisedFunc = bluebird.promisify(func);
+    return promisedFunc.apply(null, args);
+};
+
+bluebird.prototype.fail = bluebird.prototype.caught;
diff --git a/lib/unzip.js b/lib/unzip.js
index cad8c2d..855d2ca 100644
--- a/lib/unzip.js
+++ b/lib/unzip.js
@@ -1,6 +1,6 @@
 exports.openZip = openZip;
 
-var q = require("q");
+var promises = require("./promises");
 var fs = require("fs");
 var unzip = {
     Parse: require("unzip/lib/parse")
@@ -14,12 +14,12 @@ function openZip(options) {
     } else if (options.file) {
         return options.file;
     } else {
-        return q.reject(new Error("Could not find file in options"));
+        return promises.reject(new Error("Could not find file in options"));
     }
 }
 
 function unzipStream(stream) {
-    var deferred = q.defer();
+    var deferred = promises.defer();
     var names = [];
     var files = {};
     
@@ -41,7 +41,7 @@ function unzipStream(stream) {
     }
             
     function readEntry(entry) {
-        var readDeferred = q.defer();
+        var readDeferred = promises.defer();
         var buffers = new Buffers();
         
         entry
@@ -58,7 +58,7 @@ function unzipStream(stream) {
     var zipFile = {
         read: function(path, encoding) {
             if (!exists(path)) {
-                return q.reject(new Error("No file in zip: " + path));
+                return promises.reject(new Error("No file in zip: " + path));
             }
             return files[path].then(function(buffer) {
                 if (encoding) {
diff --git a/lib/xmlreader.js b/lib/xmlreader.js
index 3b14a93..e5ed672 100644
--- a/lib/xmlreader.js
+++ b/lib/xmlreader.js
@@ -1,4 +1,4 @@
-var q = require("q");
+var promises = require("./promises");
 var sax = require("sax");
 var _ = require("underscore");
 
@@ -15,7 +15,7 @@ function read(xmlString, namespaceMap) {
     var currentElement = rootElement;
     var stack = [];
     
-    var deferred = q.defer();
+    var deferred = promises.defer();
     
     parser.onopentag = function(node) {
         var attributes = mapObject(node.attributes, function(attribute) {