Fix disabling of oplog tailer (#175)

Author: timvaillancourt

mongodb_consistent_backup/Main.py

@@ -414,7 +414,7 @@ def run(self):
                 self.db.close()
 
             # resolve/merge tailed oplog into mongodump oplog.bson to a consistent point for all shards
-            if self.backup.task.lower() == "mongodump" and self.oplogtailer:
+            if self.backup.task.lower() == "mongodump" and self.oplogtailer.enabled():
                 self.resolver = Resolver(
                     self.manager,
                     self.config,

mongodb_consistent_backup/Oplog/Tailer/Tailer.py

@@ -30,7 +30,9 @@ def __init__(self, manager, config, timer, base_dir, backup_dir, replsets, backu
         self._summary              = {}
 
     def enabled(self):
-        if self._enabled.lower().strip() != 'false':
+        if isinstance(self._enabled, bool):
+            return self._enabled
+        elif isinstance(self._enabled, str) and self._enabled.strip().lower() != 'false':
             return True
         return False