X-Git-Url: http://git.scottworley.com/paperdoorknob/blobdiff_plain/e3b5fdf02164b45e85da8898196612aa51060760..7b4b681229f07e431e0945b41b956a28fa1258e4:/fetch.py

diff --git a/fetch.py b/fetch.py
index e998394..eb904a4 100644
--- a/fetch.py
+++ b/fetch.py
@@ -8,7 +8,7 @@
 from abc import ABC, abstractmethod
 from contextlib import contextmanager
 from sys import stderr
-from typing import IO, Iterator
+from typing import Callable, Iterator
 
 import requests
 import requests_cache
@@ -73,17 +73,16 @@ def DirectFetcher(timeout: int) -> Iterator[_SessionFetcher]:
 
 @contextmanager
 def CachingFetcher(
-        cache_path: str,
-        timeout: int,
-        report_stream: IO[str] = stderr) -> Iterator[_CachingFetcher]:
+    cache_path: str,
+    timeout: int,
+    log: Callable[[str], None] = lambda x: print(x, file=stderr),
+) -> Iterator[_CachingFetcher]:
     with requests_cache.CachedSession(cache_path, cache_control=True) as session:
         fetcher = _CachingFetcher(session, timeout)
         yield fetcher
         if fetcher.request_count > 0:
             percent = 100.0 * fetcher.cache_hit_count / fetcher.request_count
-            print(
-                f"Fetch cache hits: {fetcher.cache_hit_count} ({percent:.1f}%)",
-                file=report_stream)
+            log(f"Fetch cache hits: {fetcher.cache_hit_count} ({percent:.1f}%)")
 
 
 class FakeFetcher(Fetcher):