Don't run multiple searches at once

couchpotato/core/plugins/searcher/main.py

@@ -16,6 +16,8 @@ log = CPLog(__name__)
 
 class Searcher(Plugin):
 
+    in_progress = False
+
     def __init__(self):
         addEvent('searcher.all', self.all_movies)
         addEvent('searcher.single', self.single)
@@ -27,6 +29,12 @@ class Searcher(Plugin):
 
     def all_movies(self):
 
+        if self.in_progress:
+            log.info('Search already in progress')
+            return
+
+        self.in_progress = True
+
         db = get_session()
 
         movies = db.query(Movie).filter(
@@ -52,6 +60,8 @@ class Searcher(Plugin):
             if self.shuttingDown():
                 break
 
+        self.in_progress = False
+
     def single(self, movie):
 
         available_status = fireEvent('status.get', 'available', single = True)