X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/7c94ed61a55f8ae0c60737cbc6cfee3b5066ce11..e0c572833a3e2b42cd45237c26a67c6f5be4b09d:/src/black/__init__.py
diff --git a/src/black/__init__.py b/src/black/__init__.py
index 9bc8fc1..eaf72f9 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -24,6 +24,7 @@ from typing import (
MutableMapping,
Optional,
Pattern,
+ Sequence,
Set,
Sized,
Tuple,
@@ -31,6 +32,7 @@ from typing import (
)
import click
+from click.core import ParameterSource
from dataclasses import replace
from mypy_extensions import mypyc_attr
@@ -224,6 +226,16 @@ def validate_regex(
"(useful when piping source on standard input)."
),
)
+@click.option(
+ "--python-cell-magics",
+ multiple=True,
+ help=(
+ "When processing Jupyter Notebooks, add the given magic to the list"
+ f" of known python-magics ({', '.join(PYTHON_CELL_MAGICS)})."
+ " Useful for formatting cells with custom python magics."
+ ),
+ default=[],
+)
@click.option(
"-S",
"--skip-string-normalization",
@@ -240,9 +252,14 @@ def validate_regex(
"--experimental-string-processing",
is_flag=True,
hidden=True,
+ help="(DEPRECATED and now included in --preview) Normalize string literals.",
+)
+@click.option(
+ "--preview",
+ is_flag=True,
help=(
- "Experimental option that performs more normalization on string literals."
- " Currently disabled because it leads to some crashes."
+ "Enable potentially disruptive style changes that will be added to Black's main"
+ " functionality in the next major release."
),
)
@click.option(
@@ -395,9 +412,11 @@ def main(
fast: bool,
pyi: bool,
ipynb: bool,
+ python_cell_magics: Sequence[str],
skip_string_normalization: bool,
skip_magic_trailing_comma: bool,
experimental_string_processing: bool,
+ preview: bool,
quiet: bool,
verbose: bool,
required_version: Optional[str],
@@ -411,8 +430,37 @@ def main(
config: Optional[str],
) -> None:
"""The uncompromising code formatter."""
- if config and verbose:
- out(f"Using configuration from {config}.", bold=False, fg="blue")
+ ctx.ensure_object(dict)
+ root, method = find_project_root(src) if code is None else (None, None)
+ ctx.obj["root"] = root
+
+ if verbose:
+ if root:
+ out(
+ f"Identified `{root}` as project root containing a {method}.",
+ fg="blue",
+ )
+
+ normalized = [
+ (normalize_path_maybe_ignore(Path(source), root), source)
+ for source in src
+ ]
+ srcs_string = ", ".join(
+ [
+ f'"{_norm}"'
+ if _norm
+ else f'\033[31m"{source} (skipping - invalid)"\033[34m'
+ for _norm, source in normalized
+ ]
+ )
+ out(f"Sources to be formatted: {srcs_string}", fg="blue")
+
+ if config:
+ config_source = ctx.get_parameter_source("config")
+ if config_source in (ParameterSource.DEFAULT, ParameterSource.DEFAULT_MAP):
+ out("Using configuration from project root.", fg="blue")
+ else:
+ out(f"Using configuration in '{config}'.", fg="blue")
error_msg = "Oh no! ð¥ ð ð¥"
if required_version and required_version != __version__:
@@ -439,6 +487,8 @@ def main(
string_normalization=not skip_string_normalization,
magic_trailing_comma=not skip_magic_trailing_comma,
experimental_string_processing=experimental_string_processing,
+ preview=preview,
+ python_cell_magics=set(python_cell_magics),
)
if code is not None:
@@ -496,6 +546,8 @@ def main(
)
if verbose or not quiet:
+ if code is None and (verbose or report.change_count or report.failure_count):
+ out()
out(error_msg if report.return_code else "All done! ⨠ð° â¨")
if code is None:
click.echo(str(report), err=True)
@@ -516,14 +568,12 @@ def get_sources(
stdin_filename: Optional[str],
) -> Set[Path]:
"""Compute the set of files to be formatted."""
-
- root = find_project_root(src)
sources: Set[Path] = set()
path_empty(src, "No Path provided. Nothing to do ð´", quiet, verbose, ctx)
if exclude is None:
exclude = re_compile_maybe_verbose(DEFAULT_EXCLUDES)
- gitignore = get_gitignore(root)
+ gitignore = get_gitignore(ctx.obj["root"])
else:
gitignore = None
@@ -536,7 +586,7 @@ def get_sources(
is_stdin = False
if is_stdin or p.is_file():
- normalized_path = normalize_path_maybe_ignore(p, root, report)
+ normalized_path = normalize_path_maybe_ignore(p, ctx.obj["root"], report)
if normalized_path is None:
continue
@@ -563,7 +613,7 @@ def get_sources(
sources.update(
gen_python_files(
p.iterdir(),
- root,
+ ctx.obj["root"],
include,
exclude,
extend_exclude,
@@ -944,7 +994,7 @@ def format_file_contents(src_contents: str, *, fast: bool, mode: Mode) -> FileCo
return dst_contents
-def validate_cell(src: str) -> None:
+def validate_cell(src: str, mode: Mode) -> None:
"""Check that cell does not already contain TransformerManager transformations,
or non-Python cell magics, which might cause tokenizer_rt to break because of
indentations.
@@ -963,7 +1013,10 @@ def validate_cell(src: str) -> None:
"""
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:
+ if (
+ src[:2] == "%%"
+ and src.split()[0][2:] not in PYTHON_CELL_MAGICS | mode.python_cell_magics
+ ):
raise NothingChanged
@@ -983,7 +1036,7 @@ def format_cell(src: str, *, fast: bool, mode: Mode) -> str:
could potentially be automagics or multi-line magics, which
are currently not supported.
"""
- validate_cell(src)
+ validate_cell(src, mode)
src_without_trailing_semicolon, has_trailing_semicolon = remove_trailing_semicolon(
src
)
@@ -1083,20 +1136,8 @@ def format_str(src_contents: str, *, mode: Mode) -> FileContent:
else:
versions = detect_target_versions(src_node, future_imports=future_imports)
- # TODO: fully drop support and this code hopefully in January 2022 :D
- if TargetVersion.PY27 in mode.target_versions or versions == {TargetVersion.PY27}:
- msg = (
- "DEPRECATION: Python 2 support will be removed in the first stable release "
- "expected in January 2022."
- )
- err(msg, fg="yellow", bold=True)
-
normalize_fmt_off(src_node)
- lines = LineGenerator(
- mode=mode,
- remove_u_prefix="unicode_literals" in future_imports
- or supports_feature(versions, Feature.UNICODE_LITERALS),
- )
+ lines = LineGenerator(mode=mode)
elt = EmptyLineTracker(is_pyi=mode.is_pyi)
empty_line = Line(mode=mode)
after = 0
@@ -1166,14 +1207,6 @@ def get_features_used( # noqa: C901
assert isinstance(n, Leaf)
if "_" in n.value:
features.add(Feature.NUMERIC_UNDERSCORES)
- elif n.value.endswith(("L", "l")):
- # Python 2: 10L
- features.add(Feature.LONG_INT_LITERAL)
- elif len(n.value) >= 2 and n.value[0] == "0" and n.value[1].isdigit():
- # Python 2: 0123; 00123; ...
- if not all(char == "0" for char in n.value):
- # although we don't want to match 0000 or similar
- features.add(Feature.OCTAL_INT_LITERAL)
elif n.type == token.SLASH:
if n.parent and n.parent.type in {
@@ -1226,32 +1259,6 @@ def get_features_used( # noqa: C901
):
features.add(Feature.ANN_ASSIGN_EXTENDED_RHS)
- # Python 2 only features (for its deprecation) except for integers, see above
- elif n.type == syms.print_stmt:
- features.add(Feature.PRINT_STMT)
- elif n.type == syms.exec_stmt:
- features.add(Feature.EXEC_STMT)
- elif n.type == syms.tfpdef:
- # def set_position((x, y), value):
- # ...
- features.add(Feature.AUTOMATIC_PARAMETER_UNPACKING)
- elif n.type == syms.except_clause:
- # try:
- # ...
- # except Exception, err:
- # ...
- if len(n.children) >= 4:
- if n.children[-2].type == token.COMMA:
- features.add(Feature.COMMA_STYLE_EXCEPT)
- elif n.type == syms.raise_stmt:
- # raise Exception, "msg"
- if len(n.children) >= 4:
- if n.children[-2].type == token.COMMA:
- features.add(Feature.COMMA_STYLE_RAISE)
- elif n.type == token.BACKQUOTE:
- # `i'm surprised this ever existed`
- features.add(Feature.BACKQUOTE_REPR)
-
return features
@@ -1321,7 +1328,10 @@ def assert_equivalent(src: str, dst: str, *, pass_num: int = 1) -> None:
src_ast = parse_ast(src)
except Exception as exc:
raise AssertionError(
- f"cannot use --safe with this file; failed to parse source file: {exc}"
+ f"cannot use --safe with this file; failed to parse source file AST: "
+ f"{exc}\n"
+ f"This could be caused by running Black with an older Python version "
+ f"that does not support new syntax used in your source file."
) from exc
try: