Use fscache

Author: ilevkivskyi

mypy/find_sources.py

@@ -120,7 +120,9 @@ def find_sources_in_dir(self, path: str) -> list[BuildSource]:
 
             if matches_exclude(subpath, self.exclude, self.fscache, self.verbosity >= 2):
                 continue
-            if self.exclude_gitignore and matches_gitignore(subpath, self.verbosity >= 2):
+            if self.exclude_gitignore and matches_gitignore(
+                subpath, self.fscache, self.verbosity >= 2
+            ):
                 continue
 
             if self.fscache.isdir(subpath):

mypy/modulefinder.py

@@ -631,7 +631,7 @@ def find_modules_recursive(self, module: str) -> list[BuildSource]:
             if (
                 self.options
                 and self.options.exclude_gitignore
-                and matches_gitignore(subpath, self.options.verbosity >= 2)
+                and matches_gitignore(subpath, self.fscache, self.options.verbosity >= 2)
             ):
                 continue
 
@@ -673,11 +673,11 @@ def matches_exclude(
     return False
 
 
-def matches_gitignore(subpath: str, verbose: bool) -> bool:
+def matches_gitignore(subpath: str, fscache: FileSystemCache, verbose: bool) -> bool:
     dir, _ = os.path.split(subpath)
     for gi_path, gi_spec in find_gitignores(dir):
         relative_path = os.path.relpath(subpath, gi_path)
-        if os.path.isdir(relative_path):
+        if fscache.isdir(relative_path):
             relative_path = relative_path + "/"
         if gi_spec.match_file(relative_path):
             if verbose: