docs: adds ExitStack alternative to future_style.md (#3247)

[etc/vim.git] / src / black / files.py

diff --git a/src/black/files.py b/src/black/files.py
index 8348e0d8c2875374aa367c2f9b8885f1359a1cd3..d51c1bc7a90231106540bdb7fcdadb115d626225 100644 (file)
--- a/src/black/files.py
+++ b/src/black/files.py
@@ -1,9 +1,10 @@
-from functools import lru_cache

 import io
 import os
 import io
 import os

-from pathlib import Path

 import sys
 import sys

+from functools import lru_cache
+from pathlib import Path

 from typing import (
 from typing import (

+    TYPE_CHECKING,

     Any,
     Dict,
     Iterable,
     Any,
     Dict,
     Iterable,


@@ -14,24 +15,33 @@ from typing import (
     Sequence,
     Tuple,
     Union,
     Sequence,
     Tuple,
     Union,

-    TYPE_CHECKING,

 )
 
 from mypy_extensions import mypyc_attr
 from pathspec import PathSpec
 from pathspec.patterns.gitwildmatch import GitWildMatchPatternError
 )
 
 from mypy_extensions import mypyc_attr
 from pathspec import PathSpec
 from pathspec.patterns.gitwildmatch import GitWildMatchPatternError

-import tomli

 
 

+if sys.version_info >= (3, 11):
+    try:
+        import tomllib
+    except ImportError:
+        # Help users on older alphas
+        import tomli as tomllib
+else:
+    import tomli as tomllib
+
+from black.handle_ipynb_magics import jupyter_dependencies_are_installed

 from black.output import err
 from black.report import Report
 from black.output import err
 from black.report import Report

-from black.handle_ipynb_magics import jupyter_dependencies_are_installed

 
 if TYPE_CHECKING:
     import colorama  # noqa: F401
 
 
 @lru_cache()
 
 if TYPE_CHECKING:
     import colorama  # noqa: F401
 
 
 @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
     """Return a directory containing .git, .hg, or pyproject.toml.
 
     That directory will be a common parent of all files and directories


@@ -44,6 +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.
     """
     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())]
 
     if not srcs:
         srcs = [str(Path.cwd().resolve())]
 


@@ -97,10 +109,10 @@ def find_pyproject_toml(path_search_start: Tuple[str, ...]) -> Optional[str]:
 def parse_pyproject_toml(path_config: str) -> Dict[str, Any]:
     """Parse a pyproject toml file, pulling out relevant parts for Black
 
 def parse_pyproject_toml(path_config: str) -> Dict[str, Any]:
     """Parse a pyproject toml file, pulling out relevant parts for Black
 

-    If parsing fails, will raise a tomli.TOMLDecodeError
+    If parsing fails, will raise a tomllib.TOMLDecodeError

     """
     with open(path_config, "rb") as f:
     """
     with open(path_config, "rb") as f:

-        pyproject_toml = tomli.load(f)
+        pyproject_toml = tomllib.load(f)

     config = pyproject_toml.get("tool", {}).get("black", {})
     return {k.replace("--", "").replace("-", "_"): v for k, v in config.items()}
 
     config = pyproject_toml.get("tool", {}).get("black", {})
     return {k.replace("--", "").replace("-", "_"): v for k, v in config.items()}
 


@@ -151,23 +163,22 @@ def normalize_path_maybe_ignore(
     """
     try:
         abspath = path if path.is_absolute() else Path.cwd() / path
     """
     try:
         abspath = path if path.is_absolute() else Path.cwd() / path

-        normalized_path = abspath.resolve().relative_to(root).as_posix()
-    except OSError as e:
-        if report:
-            report.path_ignored(path, f"cannot be read because {e}")
-        return None
-
-    except ValueError:
-        if path.is_symlink():
+        normalized_path = abspath.resolve()
+        try:
+            root_relative_path = normalized_path.relative_to(root).as_posix()
+        except ValueError:

             if report:
                 report.path_ignored(
                     path, f"is a symbolic link that points outside {root}"
                 )
             return None
 
             if report:
                 report.path_ignored(
                     path, f"is a symbolic link that points outside {root}"
                 )
             return None
 

-        raise
+    except OSError as e:
+        if report:
+            report.path_ignored(path, f"cannot be read because {e}")
+        return None

 
 

-    return normalized_path
+    return root_relative_path

 
 
 def path_is_excluded(
 
 
 def path_is_excluded(