X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/1128f6e0d62f71f4ee91ab609c918ae5bb291edd..8b90f80efca772efd2697ffc70d7809c32564171:/services/fuse/arvados_fuse/__init__.py

diff --git a/services/fuse/arvados_fuse/__init__.py b/services/fuse/arvados_fuse/__init__.py
index d2c95fc0b6..71c4ee5a2c 100644
--- a/services/fuse/arvados_fuse/__init__.py
+++ b/services/fuse/arvados_fuse/__init__.py
@@ -65,7 +65,9 @@ class SafeApi(object):
 
 
 def convertTime(t):
-    '''Parse Arvados timestamp to unix time.'''
+    """Parse Arvados timestamp to unix time."""
+    if not t:
+        return 0
     try:
         return calendar.timegm(time.strptime(t, "%Y-%m-%dT%H:%M:%SZ"))
     except (TypeError, ValueError):
@@ -301,8 +303,10 @@ class CollectionDirectory(Directory):
         self.collection_object = None
         if isinstance(collection, dict):
             self.collection_locator = collection['uuid']
+            self._mtime = convertTime(collection.get('modified_at'))
         else:
             self.collection_locator = collection
+            self._mtime = 0
 
     def same(self, i):
         return i['uuid'] == self.collection_locator or i['portable_data_hash'] == self.collection_locator
@@ -317,6 +321,8 @@ class CollectionDirectory(Directory):
     def new_collection(self, new_collection_object, coll_reader):
         self.collection_object = new_collection_object
 
+        self._mtime = convertTime(self.collection_object.get('modified_at'))
+
         if self.collection_object_file is not None:
             self.collection_object_file.update(self.collection_object)
 
@@ -390,10 +396,6 @@ class CollectionDirectory(Directory):
         else:
             return super(CollectionDirectory, self).__contains__(k)
 
-    def mtime(self):
-        self.checkupdate()
-        return convertTime(self.collection_object["modified_at"]) if self.collection_object is not None and 'modified_at' in self.collection_object else 0
-
 
 class MagicDirectory(Directory):
     '''A special directory that logically contains the set of all extant keep