A way to limit appengine SDK files watched (for changes)

0001-Limit-the-directory-where-watching-for-file-changes.patch

From 137005e7bc187141c5f6224aa6264079a2e95b95 Mon Sep 17 00:00:00 2001
From: Tomo Krajina <tkrajina@gmail.com>
Date: Tue, 14 Jun 2016 12:07:06 +0200
Subject: [PATCH] Limit the directory where watching for file changes

---
 google/appengine/tools/devappserver2/mtime_file_watcher.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/google/appengine/tools/devappserver2/mtime_file_watcher.py b/google/appengine/tools/devappserver2/mtime_file_watcher.py
index 3d285d3..fa7d983 100644
--- a/google/appengine/tools/devappserver2/mtime_file_watcher.py
+++ b/google/appengine/tools/devappserver2/mtime_file_watcher.py
@@ -17,6 +17,7 @@
 """Monitors a directory tree for changes using mtime polling."""

 import os
+import os.path
 import threading
 import warnings

@@ -117,8 +118,10 @@ class MtimeFileWatcher(object):
               'restart the development server to see some changes to your '
               'files.')
           return filename_to_mtime
-        num_files += 1
         path = os.path.join(dirname, filename)
+        if not os.environ["APPENGINE_WATCH"] in path:
+          continue
+        num_files += 1
         try:
           filename_to_mtime[path] = os.path.getmtime(path)
         except (IOError, OSError):
--
2.4.2