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import argparse
import concurrent.futures
import json
import logging
import os
import sys
from enum import Enum
from pathlib import Path
from typing import Any, List, NamedTuple, Optional
from ufmt.core import make_black_config, ufmt_string
from usort import Config as UsortConfig
IS_WINDOWS: bool = os.name == "nt"
def eprint(*args: Any, **kwargs: Any) -> None:
print(*args, file=sys.stderr, flush=True, **kwargs)
class LintSeverity(str, Enum):
ERROR = "error"
WARNING = "warning"
ADVICE = "advice"
DISABLED = "disabled"
class LintMessage(NamedTuple):
path: Optional[str]
line: Optional[int]
char: Optional[int]
code: str
severity: LintSeverity
name: str
original: Optional[str]
replacement: Optional[str]
description: Optional[str]
def as_posix(name: str) -> str:
return name.replace("\\", "/") if IS_WINDOWS else name
def format_error_message(filename: str, err: Exception) -> LintMessage:
return LintMessage(
path=filename,
line=None,
char=None,
code="UFMT",
severity=LintSeverity.ADVICE,
name="command-failed",
original=None,
replacement=None,
description=(f"Failed due to {err.__class__.__name__}:\n{err}"),
)
def check_file(
filename: str,
) -> List[LintMessage]:
with open(filename, "rb") as f:
original = f.read().decode("utf-8")
try:
path = Path(filename)
usort_config = UsortConfig.find(path)
black_config = make_black_config(path)
# Use UFMT API to call both usort and black
replacement = ufmt_string(
path=path,
content=original,
usort_config=usort_config,
black_config=black_config,
)
if original == replacement:
return []
return [
LintMessage(
path=filename,
line=None,
char=None,
code="UFMT",
severity=LintSeverity.WARNING,
name="format",
original=original,
replacement=replacement,
description="Run `lintrunner -a` to apply this patch.",
)
]
except Exception as err:
return [format_error_message(filename, err)]
def main() -> None:
parser = argparse.ArgumentParser(
description="Format files with ufmt (black + usort).",
fromfile_prefix_chars="@",
)
parser.add_argument(
"--verbose",
action="store_true",
help="verbose logging",
)
parser.add_argument(
"filenames",
nargs="+",
help="paths to lint",
)
args = parser.parse_args()
logging.basicConfig(
format="<%(threadName)s:%(levelname)s> %(message)s",
level=logging.NOTSET
if args.verbose
else logging.DEBUG
if len(args.filenames) < 1000
else logging.INFO,
stream=sys.stderr,
)
with concurrent.futures.ThreadPoolExecutor(
max_workers=os.cpu_count(),
thread_name_prefix="Thread",
) as executor:
futures = {executor.submit(check_file, x): x for x in args.filenames}
for future in concurrent.futures.as_completed(futures):
try:
for lint_message in future.result():
print(json.dumps(lint_message._asdict()), flush=True)
except Exception:
logging.critical('Failed at "%s".', futures[future])
raise
if __name__ == "__main__":
main()
|
