promise.is_process_older_than_dependency_set: Verbose a bit of information when fail.

slapos/promise/is_process_older_than_dependency_set/__init__.py

@@ -12,7 +12,7 @@ import sys
 import os
 import errno
 import argparse
-
+import time
 import psutil
 
 ignored_extension_set = set([".pyc"])
@@ -29,6 +29,10 @@ def moduleIsModifiedSince(top, since, followlinks=False):
       if ext in ignored_extension_set:
         continue
       if since < os.stat(os.path.join(root, name)).st_mtime:
+        print "%s was modified since the process started." % \
+                                                       os.path.join(root, name)
+        print "Process Time %s < Last modidified file %s" % (time.ctime(since),
+                        time.ctime(os.stat(os.path.join(root, name)).st_mtime))
         return True
   return False
 
@@ -37,6 +41,7 @@ def isProcessOlderThanDependencySet(pid, python_path_list, kill=False):
   start_time = process.create_time()
   if any(moduleIsModifiedSince(product_path, start_time) for product_path in python_path_list):
     if kill:
+      print "Terminating process %s with pid %s" % (process.name(), pid)
       process.terminate()
     return True
   return False