From 9a0164059acb7bd94129f209eb7ce52298a5b676 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 12 Feb 2013 10:25:43 +0530
Subject: [PATCH] ...

---
 src/calibre/utils/serve_coffee.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/calibre/utils/serve_coffee.py b/src/calibre/utils/serve_coffee.py
index fa5d80a961..fd50dfd35c 100644
--- a/src/calibre/utils/serve_coffee.py
+++ b/src/calibre/utils/serve_coffee.py
@@ -100,6 +100,14 @@ def compile_coffeescript(raw, filename=None):
         return fork_job('calibre.utils.serve_coffee', 'do_compile',
                 args=(raw,), no_output=True)['result']
 
+def check_coffeescript(filename):
+    with open(filename, 'rb') as f:
+        raw = f.read()
+    cs, errs = compile_coffeescript(raw, filename)
+    if errs:
+        print('\n'.join(errs))
+        raise Exception('Compilation failed')
+
 class HTTPRequestHandler(SimpleHTTPRequestHandler): # {{{
     '''
     Handle Range headers, as browsers insist on using range for <video> tags.