Steam source debug info on skip

src/importer/sources/steam_source.py

@@ -18,6 +18,7 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
+import logging
 import re
 from pathlib import Path
 from time import time
@@ -25,13 +26,13 @@ from typing import Iterable
 
 from src import shared
 from src.game import Game
+from src.importer.sources.location import Location
 from src.importer.sources.source import (
     SourceIterationResult,
     SourceIterator,
     URLExecutableSource,
 )
 from src.utils.steam import SteamFileHelper, SteamInvalidManifestError
-from src.importer.sources.location import Location
 
 
 class SteamSourceIterator(SourceIterator):
@@ -74,17 +75,20 @@ class SteamSourceIterator(SourceIterator):
             steam = SteamFileHelper()
             try:
                 local_data = steam.get_manifest_data(manifest)
-            except (OSError, SteamInvalidManifestError):
+            except (OSError, SteamInvalidManifestError) as error:
+                logging.debug("Couldn't load appmanifest %s", manifest, exc_info=error)
                 continue
 
             # Skip non installed games
             installed_mask = 4
             if not int(local_data["stateflags"]) & installed_mask:
+                logging.debug("Skipped %s: not installed", manifest)
                 continue
 
             # Skip duplicate appids
             appid = local_data["appid"]
             if appid in appid_cache:
+                logging.debug("Skipped %s: appid already seen during import", manifest)
                 continue
             appid_cache.add(appid)