X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/4abc0399b527c50369c448e00d6e204af74026e5..31b3b6701d2cfae072900f9d45dc8f1737ab282b:/src/black/__init__.py?ds=inline
diff --git a/src/black/__init__.py b/src/black/__init__.py
index d9fba41..222cb3c 100644
--- a/src/black/__init__.py
+++ b/src/black/__init__.py
@@ -7,7 +7,7 @@ import tokenize
import traceback
from contextlib import contextmanager
from dataclasses import replace
-from datetime import datetime
+from datetime import datetime, timezone
from enum import Enum
from json.decoder import JSONDecodeError
from pathlib import Path
@@ -30,6 +30,7 @@ from typing import (
import click
from click.core import ParameterSource
from mypy_extensions import mypyc_attr
+from pathspec import PathSpec
from pathspec.patterns.gitwildmatch import GitWildMatchPatternError
from _black_version import version as __version__
@@ -126,7 +127,9 @@ def read_pyproject_toml(
otherwise.
"""
if not value:
- value = find_pyproject_toml(ctx.params.get("src", ()))
+ value = find_pyproject_toml(
+ ctx.params.get("src", ()), ctx.params.get("stdin_filename", None)
+ )
if value is None:
return None
@@ -218,8 +221,9 @@ def validate_regex(
callback=target_version_option_callback,
multiple=True,
help=(
- "Python versions that should be supported by Black's output. [default: per-file"
- " auto-detection]"
+ "Python versions that should be supported by Black's output. By default, Black"
+ " will try to infer this from the project metadata in pyproject.toml. If this"
+ " does not yield conclusive results, Black will use per-file auto-detection."
),
)
@click.option(
@@ -243,7 +247,7 @@ def validate_regex(
multiple=True,
help=(
"When processing Jupyter Notebooks, add the given magic to the list"
- f" of known python-magics ({', '.join(PYTHON_CELL_MAGICS)})."
+ f" of known python-magics ({', '.join(sorted(PYTHON_CELL_MAGICS))})."
" Useful for formatting cells with custom python magics."
),
default=[],
@@ -360,6 +364,7 @@ def validate_regex(
@click.option(
"--stdin-filename",
type=str,
+ is_eager=True,
help=(
"The name of the file when passing it through stdin. Useful to make "
"sure Black will respect --force-exclude option on some "
@@ -371,7 +376,10 @@ def validate_regex(
"--workers",
type=click.IntRange(min=1),
default=None,
- help="Number of parallel workers [default: number of CPUs in the system]",
+ help=(
+ "Number of parallel workers [default: BLACK_NUM_WORKERS environment variable "
+ "or number of CPUs in the system]"
+ ),
)
@click.option(
"-q",
@@ -476,22 +484,6 @@ def main( # noqa: C901
fg="blue",
)
- normalized = [
- (source, source)
- if source == "-"
- else (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")
user_level_config = str(find_user_pyproject_toml())
@@ -508,6 +500,9 @@ def main( # noqa: C901
out("Using configuration from project root.", fg="blue")
else:
out(f"Using configuration in '{config}'.", fg="blue")
+ if ctx.default_map:
+ for param, value in ctx.default_map.items():
+ out(f"{param}: {value}")
error_msg = "Oh no! ð¥ ð ð¥"
if (
@@ -625,6 +620,11 @@ def get_sources(
sources: Set[Path] = set()
root = ctx.obj["root"]
+ using_default_exclude = exclude is None
+ exclude = re_compile_maybe_verbose(DEFAULT_EXCLUDES) if exclude is None else exclude
+ gitignore: Optional[Dict[Path, PathSpec]] = None
+ root_gitignore = get_gitignore(root)
+
for s in src:
if s == "-" and stdin_filename:
p = Path(stdin_filename)
@@ -634,9 +634,15 @@ def get_sources(
is_stdin = False
if is_stdin or p.is_file():
- normalized_path = normalize_path_maybe_ignore(p, ctx.obj["root"], report)
+ normalized_path: Optional[str] = normalize_path_maybe_ignore(
+ p, ctx.obj["root"], report
+ )
if normalized_path is None:
+ if verbose:
+ out(f'Skipping invalid source: "{normalized_path}"', fg="red")
continue
+ if verbose:
+ out(f'Found input source: "{normalized_path}"', fg="blue")
normalized_path = "/" + normalized_path
# Hard-exclude any files that matches the `--force-exclude` regex.
@@ -658,16 +664,15 @@ def get_sources(
sources.add(p)
elif p.is_dir():
- if exclude is None:
- exclude = re_compile_maybe_verbose(DEFAULT_EXCLUDES)
- gitignore = get_gitignore(root)
- p_gitignore = get_gitignore(p)
- # No need to use p's gitignore if it is identical to root's gitignore
- # (i.e. root and p point to the same directory).
- if gitignore != p_gitignore:
- gitignore += p_gitignore
- else:
- gitignore = None
+ p = root / normalize_path_maybe_ignore(p, ctx.obj["root"], report)
+ if verbose:
+ out(f'Found input source directory: "{p}"', fg="blue")
+
+ if using_default_exclude:
+ gitignore = {
+ root: root_gitignore,
+ p: get_gitignore(p),
+ }
sources.update(
gen_python_files(
p.iterdir(),
@@ -683,9 +688,12 @@ def get_sources(
)
)
elif s == "-":
+ if verbose:
+ out("Found input source stdin", fg="blue")
sources.add(p)
else:
err(f"invalid path: {s}")
+
return sources
@@ -797,7 +805,7 @@ def format_file_in_place(
elif src.suffix == ".ipynb":
mode = replace(mode, is_ipynb=True)
- then = datetime.utcfromtimestamp(src.stat().st_mtime)
+ then = datetime.fromtimestamp(src.stat().st_mtime, timezone.utc)
header = b""
with open(src, "rb") as buf:
if mode.skip_source_first_line:
@@ -818,9 +826,9 @@ def format_file_in_place(
with open(src, "w", encoding=encoding, newline=newline) as f:
f.write(dst_contents)
elif write_back in (WriteBack.DIFF, WriteBack.COLOR_DIFF):
- now = datetime.utcnow()
- src_name = f"{src}\t{then} +0000"
- dst_name = f"{src}\t{now} +0000"
+ now = datetime.now(timezone.utc)
+ src_name = f"{src}\t{then}"
+ dst_name = f"{src}\t{now}"
if mode.is_ipynb:
diff_contents = ipynb_diff(src_contents, dst_contents, src_name, dst_name)
else:
@@ -858,7 +866,7 @@ def format_stdin_to_stdout(
write a diff to stdout. The `mode` argument is passed to
:func:`format_file_contents`.
"""
- then = datetime.utcnow()
+ then = datetime.now(timezone.utc)
if content is None:
src, encoding, newline = decode_bytes(sys.stdin.buffer.read())
@@ -883,9 +891,9 @@ def format_stdin_to_stdout(
dst += "\n"
f.write(dst)
elif write_back in (WriteBack.DIFF, WriteBack.COLOR_DIFF):
- now = datetime.utcnow()
- src_name = f"STDIN\t{then} +0000"
- dst_name = f"STDOUT\t{now} +0000"
+ now = datetime.now(timezone.utc)
+ src_name = f"STDIN\t{then}"
+ dst_name = f"STDOUT\t{now}"
d = diff(src, dst, src_name, dst_name)
if write_back == WriteBack.COLOR_DIFF:
d = color_diff(d)
@@ -914,9 +922,6 @@ def format_file_contents(src_contents: str, *, fast: bool, mode: Mode) -> FileCo
valid by calling :func:`assert_equivalent` and :func:`assert_stable` on it.
`mode` is passed to :func:`format_str`.
"""
- if not src_contents.strip():
- raise NothingChanged
-
if mode.is_ipynb:
dst_contents = format_ipynb_string(src_contents, fast=fast, mode=mode)
else:
@@ -1011,6 +1016,9 @@ def format_ipynb_string(src_contents: str, *, fast: bool, mode: Mode) -> FileCon
Operate cell-by-cell, only on code cells, only for Python notebooks.
If the ``.ipynb`` originally had a trailing newline, it'll be preserved.
"""
+ if not src_contents:
+ raise NothingChanged
+
trailing_newline = src_contents[-1] == "\n"
modified = False
nb = json.loads(src_contents)
@@ -1082,8 +1090,13 @@ def _format_str_once(src_contents: str, *, mode: Mode) -> str:
future_imports = get_future_imports(src_node)
versions = detect_target_versions(src_node, future_imports=future_imports)
- normalize_fmt_off(src_node, preview=mode.preview)
- lines = LineGenerator(mode=mode)
+ context_manager_features = {
+ feature
+ for feature in {Feature.PARENTHESIZED_CONTEXT_MANAGERS}
+ if supports_feature(versions, feature)
+ }
+ normalize_fmt_off(src_node)
+ lines = LineGenerator(mode=mode, features=context_manager_features)
elt = EmptyLineTracker(mode=mode)
split_line_features = {
feature
@@ -1103,6 +1116,13 @@ def _format_str_once(src_contents: str, *, mode: Mode) -> str:
dst_contents = []
for block in dst_blocks:
dst_contents.extend(block.all_lines())
+ if not dst_contents:
+ # Use decode_bytes to retrieve the correct source newline (CRLF or LF),
+ # and check if normalized_content has more than one line
+ normalized_content, _, newline = decode_bytes(src_contents.encode("utf-8"))
+ if "\n" in normalized_content:
+ return newline
+ return ""
return "".join(dst_contents)
@@ -1138,6 +1158,10 @@ def get_features_used( # noqa: C901
- relaxed decorator syntax;
- usage of __future__ flags (annotations);
- print / exec statements;
+ - parenthesized context managers;
+ - match statements;
+ - except* clause;
+ - variadic generics;
"""
features: Set[Feature] = set()
if future_imports:
@@ -1213,6 +1237,23 @@ def get_features_used( # noqa: C901
):
features.add(Feature.ANN_ASSIGN_EXTENDED_RHS)
+ elif (
+ n.type == syms.with_stmt
+ and len(n.children) > 2
+ and n.children[1].type == syms.atom
+ ):
+ atom_children = n.children[1].children
+ if (
+ len(atom_children) == 3
+ and atom_children[0].type == token.LPAR
+ and atom_children[1].type == syms.testlist_gexp
+ and atom_children[2].type == token.RPAR
+ ):
+ features.add(Feature.PARENTHESIZED_CONTEXT_MANAGERS)
+
+ elif n.type == syms.match_stmt:
+ features.add(Feature.PATTERN_MATCHING)
+
elif (
n.type == syms.except_clause
and len(n.children) >= 2
@@ -1232,6 +1273,9 @@ def get_features_used( # noqa: C901
):
features.add(Feature.VARIADIC_GENERICS)
+ elif n.type in (syms.type_stmt, syms.typeparams):
+ features.add(Feature.TYPE_PARAMS)
+
return features