archive-cache: synced with ce

vcsserver/lib/archive_cache/backends/base.py

@@ -247,7 +247,7 b' class BaseCache:'
     def get_lock(self, lock_key):
         return GenerationLock(lock_key, self._locking_url)
 
-    def evict(self, policy=None, size_limit=None) -> int:
+    def evict(self, policy=None, size_limit=None) -> dict:
         """
         Remove old items based on the conditions
 
@@ -257,13 +257,16 b' class BaseCache:'
         read the key files metadata stored. This gives us a full list of keys, cached_archived, their size and
         access data, time creation, and access counts.
 
-        Store that into a memory DB so we can run different sorting strategies easily.
+        Store that into a memory DB in order we can run different sorting strategies easily.
         Summing the size is a sum sql query.
 
         Then we run a sorting strategy based on eviction policy.
         We iterate over sorted keys, and remove each checking if we hit the overall limit.
         """
-
+        removal_info = {
+            "removed_items": 0,
+            "removed_size": 0
+        }
         policy = policy or self._eviction_policy
         size_limit = size_limit or self._cache_size_limit
 
@@ -273,7 +276,7 b' class BaseCache:'
                   policy, format_size(size_limit))
 
         if select_policy is None:
-            return 0
+            return removal_info
 
         db = self.get_stats_db()
 
@@ -327,10 +330,11 b' class BaseCache:'
             self.remove(archive_key)
             removed_items += 1
             removed_size += size
-
+        removal_info['removed_items'] = removed_items
+        removal_info['removed_size'] = removed_size
         log.debug('Removed %s cache archives, and reduced size by: %s',
                   removed_items, format_size(removed_size))
-        return removed_items
+        return removal_info
 
     def get_statistics(self):
         total_files = 0