Get cache from disk to avoid cache overwriting.

tholo/pytest-flake8#94
iurisilvio · Feb 20, 2023 · 64ad0f6 · 64ad0f6
1 parent 1d0d34a
commit 64ad0f6
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/pytest_black.py b/pytest_black.py
@@ -39,7 +39,9 @@ def pytest_configure(config):
 def pytest_unconfigure(config):
     # save cached mtimes at end of session
     if hasattr(config, "_blackmtimes"):
-        config.cache.set(HISTKEY, config._blackmtimes)
+        cache = config.cache.get(HISTKEY, {})
+        cache.update(config._blackmtimes)
+        config.cache.set(HISTKEY, cache)
 
 
 class BlackItem(pytest.Item, pytest.File):