Add .gitbook to locate book inside repository

1 files changed, 26 insertions, 0 deletions

diff --git a/lib/book.js b/lib/book.js
index c81d255..86b1d67 100644
--- a/lib/book.js
+++ b/lib/book.js
@@ -328,4 +328,30 @@ Book.prototype.isInLanguageBook = function(filename) {
     });
 };
 
+// Locate a book in a folder
+// - Read the ".gitbook" is exists
+// - Try the folder itself
+// - Try a "docs" folder
+Book.locate = function(fs, root) {
+    return fs.readAsString(path.join(root, '.gitbook'))
+    .then(function(content) {
+        return path.join(root, content);
+    }, function() {
+        // .gitbook doesn't exists, fall back to the root folder
+        return Promise(root);
+    });
+};
+
+// Locate and setup a book
+Book.setup = function(fs, root, opts) {
+    return Book.locate(fs, root)
+    .then(function(_root) {
+        return new Book(_.extend(opts || {}, {
+            root: _root,
+            fs: fs
+        }));
+    });
+};
+
+
 module.exports = Book;