From cc9fdd0032e8d0e6effe7ab7a4da71e8e7d11af5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Samy=20Pess=C3=A9?= <samypesse@gmail.com>
Date: Wed, 27 Apr 2016 15:12:18 +0200
Subject: [PATCH] Generate multilingual books

---
 lib/output/generateBook.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/lib/output/generateBook.js b/lib/output/generateBook.js
index 5138f883a..cd20c8d29 100644
--- a/lib/output/generateBook.js
+++ b/lib/output/generateBook.js
@@ -1,3 +1,4 @@
+var path = require('path');
 var Immutable = require('immutable');
 
 var Output = require('../models/output');
@@ -94,6 +95,21 @@ function generateBook(generator, book, options) {
     .then(generateAssets.bind(null, generator))
     .then(generatePages.bind(null, generator))
 
+    .tap(function(output) {
+        var book = output.getBook();
+        var books = book.getBooks();
+        var outputRoot = output.getRoot();
+
+        if (!book.isMultilingual()) {
+            return;
+        }
+
+        return Promise.forEach(books, function(langBook, language) {
+            var langOptions = options.set('root', path.join(outputRoot, language));
+            return generateBook(generator, langBook, langOptions);
+        });
+    })
+
     .then(callHook.bind(null,
         'finish:before',
             function(output) {