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Move 3.11 tests to install aiohttp without C extensions (#3258)
[etc/vim.git] / src / black / files.py
index 17515d52b57b6427363f97526deffcbdbc6fdbb2..d51c1bc7a90231106540bdb7fcdadb115d626225 100644 (file)
@@ -39,7 +39,9 @@ if TYPE_CHECKING:
 
 
 @lru_cache()
-def find_project_root(srcs: Sequence[str]) -> Tuple[Path, str]:
+def find_project_root(
+    srcs: Sequence[str], stdin_filename: Optional[str] = None
+) -> Tuple[Path, str]:
     """Return a directory containing .git, .hg, or pyproject.toml.
 
     That directory will be a common parent of all files and directories
@@ -52,6 +54,8 @@ def find_project_root(srcs: Sequence[str]) -> Tuple[Path, str]:
     the second element as a string describing the method by which the
     project root was discovered.
     """
+    if stdin_filename is not None:
+        srcs = tuple(stdin_filename if s == "-" else s for s in srcs)
     if not srcs:
         srcs = [str(Path.cwd().resolve())]