Fix #91: Extract defaults title and description from README.md

1 files changed, 24 insertions, 8 deletions

diff --git a/lib/generate/index.js b/lib/generate/index.js
index cba9071..48bcaca 100644
--- a/lib/generate/index.js
+++ b/lib/generate/index.js
@@ -15,6 +15,8 @@ var generators = {
     "json": require("./json")
 };
 
+var defaultDescription = "Book generated using GitBook";
+
 /*
  *  Use a specific generator to convert a gitbook to a site/pdf/ebook/
  *  output is always a folder
@@ -33,7 +35,7 @@ var generate = function(options) {
 
         // Book title, keyword, description
         title: null,
-        description: "Book generated using GitBook",
+        description: null,
 
         // Origin github repository id
         github: null,
@@ -43,8 +45,8 @@ var generate = function(options) {
         theme: path.resolve(__dirname, '../../theme')
     });
 
-    if (!options.title || !options.input) {
-        return Q.reject(new Error("Need options: title, input"));
+    if (!options.input) {
+        return Q.reject(new Error("Need option input (book input directory)"));
     }
 
     if (!generators[options.generator]) {
@@ -103,14 +105,28 @@ var generate = function(options) {
             return Q.reject(new Error("Invalid gitbook repository, need SUMMARY.md and README.md"));
         } else {
             // Generate the book
-            return fs.readFile(path.join(options.input, "SUMMARY.md"), "utf-8")
+            return Q()
+
+            // Read readme
+            .then(function() {
+                return fs.readFile(path.join(options.input, "README.md"), "utf-8")
+                .then(function(_readme) {
+                    _readme = parse.readme(_readme);
+
+                    options.title = options.title || _readme.title;
+                    options.description = options.description || _readme.description || defaultDescription;
+                });
+            })
 
             // Get summary
-            .then(function(_summary) {
-                options.summary = parse.summary(_summary);
+            .then(function() {
+                return fs.readFile(path.join(options.input, "SUMMARY.md"), "utf-8")
+                .then(function(_summary) {
+                    options.summary = parse.summary(_summary);
 
-                // Parse navigation
-                options.navigation = parse.navigation(options.summary);
+                    // Parse navigation
+                    options.navigation = parse.navigation(options.summary);
+                });
             })
 
             // Copy file and replace markdown file