print debugging

src/black/__init__.py

@@ -760,13 +760,16 @@ def get_sources(
 
         # Compare the logic here to the logic in `gen_python_files`.
         if is_stdin or path.is_file():
+            print("a", path, root)
             if resolves_outside_root_or_cannot_stat(path, root, report):
                 if verbose:
                     out(f'Skipping invalid source: "{path}"', fg="red")
                 continue
+            print("e", path, root)
 
             root_relative_path = best_effort_relative_path(path, root).as_posix()
             root_relative_path = "/" + root_relative_path
+            print("f", root_relative_path)
 
             # Hard-exclude any files that matches the `--force-exclude` regex.
             if path_is_excluded(root_relative_path, force_exclude):

src/black/files.py

@@ -268,6 +268,7 @@ def resolves_outside_root_or_cannot_stat(
     Returns whether the path is a symbolic link that points outside the
     root directory. Also returns True if we failed to resolve the path.
     """
+    print("b", path, root)
     try:
         if sys.version_info < (3, 8, 6):
             path = path.absolute()  # https://bugs.python.org/issue33660
@@ -276,12 +277,14 @@ def resolves_outside_root_or_cannot_stat(
         if report:
             report.path_ignored(path, f"cannot be read because {e}")
         return True
+    print("c", resolved_path, root)
     try:
         resolved_path.relative_to(root)
     except ValueError:
         if report:
             report.path_ignored(path, f"is a symbolic link that points outside {root}")
         return True
+    print("d")
     return False