Don't let TokenError bubble up from lib2to3_parse (GH-2343)

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

diff --git a/src/black/__init__.py b/src/black/__init__.py
index ad4ee1a0d1a6dff08825d6580f9d9cf94793c0ff..1923c069edec794956a3c5a4506ce1ca7a4cea03 100644 (file)
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -10,7 +10,7 @@ from multiprocessing import Manager, freeze_support
 import os
 from pathlib import Path
 from pathspec.patterns.gitwildmatch import GitWildMatchPatternError
 import os
 from pathlib import Path
 from pathspec.patterns.gitwildmatch import GitWildMatchPatternError

-import regex as re
+import re

 import signal
 import sys
 import tokenize
 import signal
 import sys
 import tokenize


@@ -30,8 +30,9 @@ from typing import (
     Union,
 )
 
     Union,
 )
 

-from dataclasses import replace

 import click
 import click

+from dataclasses import replace
+from mypy_extensions import mypyc_attr

 
 from black.const import DEFAULT_LINE_LENGTH, DEFAULT_INCLUDES, DEFAULT_EXCLUDES
 from black.const import STDIN_PLACEHOLDER
 
 from black.const import DEFAULT_LINE_LENGTH, DEFAULT_INCLUDES, DEFAULT_EXCLUDES
 from black.const import STDIN_PLACEHOLDER


@@ -56,6 +57,7 @@ from black.handle_ipynb_magics import (
     remove_trailing_semicolon,
     put_trailing_semicolon_back,
     TRANSFORMED_MAGICS,
     remove_trailing_semicolon,
     put_trailing_semicolon_back,
     TRANSFORMED_MAGICS,

+    PYTHON_CELL_MAGICS,

     jupyter_dependencies_are_installed,
 )
 
     jupyter_dependencies_are_installed,
 )
 


@@ -66,6 +68,8 @@ from blib2to3.pgen2 import token
 
 from _black_version import version as __version__
 
 
 from _black_version import version as __version__
 

+COMPILED = Path(__file__).suffix in (".pyd", ".so")
+

 # types
 FileContent = str
 Encoding = str
 # types
 FileContent = str
 Encoding = str


@@ -177,7 +181,12 @@ def validate_regex(
         raise click.BadParameter("Not a valid regular expression") from None
 
 
         raise click.BadParameter("Not a valid regular expression") from None
 
 

-@click.command(context_settings=dict(help_option_names=["-h", "--help"]))
+@click.command(
+    context_settings={"help_option_names": ["-h", "--help"]},
+    # While Click does set this field automatically using the docstring, mypyc
+    # (annoyingly) strips 'em so we need to set it here too.
+    help="The uncompromising code formatter.",
+)

 @click.option("-c", "--code", type=str, help="Format the code passed in as a string.")
 @click.option(
     "-l",
 @click.option("-c", "--code", type=str, help="Format the code passed in as a string.")
 @click.option(
     "-l",


@@ -346,7 +355,10 @@ def validate_regex(
         " due to exclusion patterns."
     ),
 )
         " due to exclusion patterns."
     ),
 )

-@click.version_option(version=__version__)
+@click.version_option(
+    version=__version__,
+    message=f"%(prog)s, %(version)s (compiled: {'yes' if COMPILED else 'no'})",
+)

 @click.argument(
     "src",
     nargs=-1,
 @click.argument(
     "src",
     nargs=-1,


@@ -387,7 +399,7 @@ def main(
     experimental_string_processing: bool,
     quiet: bool,
     verbose: bool,
     experimental_string_processing: bool,
     quiet: bool,
     verbose: bool,

-    required_version: str,
+    required_version: Optional[str],

     include: Pattern[str],
     exclude: Optional[Pattern[str]],
     extend_exclude: Optional[Pattern[str]],
     include: Pattern[str],
     exclude: Optional[Pattern[str]],
     extend_exclude: Optional[Pattern[str]],


@@ -655,6 +667,9 @@ def reformat_one(
         report.failed(src, str(exc))
 
 
         report.failed(src, str(exc))
 
 

+# diff-shades depends on being to monkeypatch this function to operate. I know it's
+# not ideal, but this shouldn't cause any issues ... hopefully. ~ichard26
+@mypyc_attr(patchable=True)

 def reformat_many(
     sources: Set[Path],
     fast: bool,
 def reformat_many(
     sources: Set[Path],
     fast: bool,


@@ -669,10 +684,11 @@ def reformat_many(
     worker_count = workers if workers is not None else DEFAULT_WORKERS
     if sys.platform == "win32":
         # Work around https://bugs.python.org/issue26903
     worker_count = workers if workers is not None else DEFAULT_WORKERS
     if sys.platform == "win32":
         # Work around https://bugs.python.org/issue26903

+        assert worker_count is not None

         worker_count = min(worker_count, 60)
     try:
         executor = ProcessPoolExecutor(max_workers=worker_count)
         worker_count = min(worker_count, 60)
     try:
         executor = ProcessPoolExecutor(max_workers=worker_count)

-    except (ImportError, OSError):
+    except (ImportError, NotImplementedError, OSError):

         # we arrive here if the underlying system does not support multi-processing
         # like in AWS Lambda or Termux, in which case we gracefully fallback to
         # a ThreadPoolExecutor with just a single worker (more workers would not do us
         # we arrive here if the underlying system does not support multi-processing
         # like in AWS Lambda or Termux, in which case we gracefully fallback to
         # a ThreadPoolExecutor with just a single worker (more workers would not do us


@@ -928,7 +944,9 @@ def format_file_contents(src_contents: str, *, fast: bool, mode: Mode) -> FileCo
 
 
 def validate_cell(src: str) -> None:
 
 
 def validate_cell(src: str) -> None:

-    """Check that cell does not already contain TransformerManager transformations.
+    """Check that cell does not already contain TransformerManager transformations,
+    or non-Python cell magics, which might cause tokenizer_rt to break because of
+    indentations.

 
     If a cell contains ``!ls``, then it'll be transformed to
     ``get_ipython().system('ls')``. However, if the cell originally contained
 
     If a cell contains ``!ls``, then it'll be transformed to
     ``get_ipython().system('ls')``. However, if the cell originally contained


@@ -944,6 +962,8 @@ def validate_cell(src: str) -> None:
     """
     if any(transformed_magic in src for transformed_magic in TRANSFORMED_MAGICS):
         raise NothingChanged
     """
     if any(transformed_magic in src for transformed_magic in TRANSFORMED_MAGICS):
         raise NothingChanged

+    if src[:2] == "%%" and src.split()[0][2:] not in PYTHON_CELL_MAGICS:
+        raise NothingChanged

 
 
 def format_cell(src: str, *, fast: bool, mode: Mode) -> str:
 
 
 def format_cell(src: str, *, fast: bool, mode: Mode) -> str: