-#!/usr/bin/env python3
-
import asyncio
import errno
import json
from shutil import rmtree, which
from subprocess import CalledProcessError
from sys import version_info
-from typing import Any, Callable, Dict, NamedTuple, Optional, Sequence, Tuple
+from tempfile import TemporaryDirectory
+from typing import (
+ Any,
+ Callable,
+ Dict,
+ List,
+ NamedTuple,
+ Optional,
+ Sequence,
+ Tuple,
+ Union,
+)
from urllib.parse import urlparse
import click
+TEN_MINUTES_SECONDS = 600
WINDOWS = system() == "Windows"
BLACK_BINARY = "black.exe" if WINDOWS else "black"
-GIT_BIANRY = "git.exe" if WINDOWS else "git"
+GIT_BINARY = "git.exe" if WINDOWS else "git"
LOG = logging.getLogger(__name__)
async def _gen_check_output(
cmd: Sequence[str],
- timeout: float = 300,
+ timeout: float = TEN_MINUTES_SECONDS,
env: Optional[Dict[str, str]] = None,
cwd: Optional[Path] = None,
+ stdin: Optional[bytes] = None,
) -> Tuple[bytes, bytes]:
process = await asyncio.create_subprocess_exec(
*cmd,
+ stdin=asyncio.subprocess.PIPE,
stdout=asyncio.subprocess.PIPE,
stderr=asyncio.subprocess.STDOUT,
env=env,
cwd=cwd,
)
try:
- (stdout, stderr) = await asyncio.wait_for(process.communicate(), timeout)
+ (stdout, stderr) = await asyncio.wait_for(process.communicate(stdin), timeout)
except asyncio.TimeoutError:
process.kill()
await process.wait()
raise
- if process.returncode != 0:
- returncode = process.returncode
- if returncode is None:
- returncode = 69
+ # A non-optional timeout was supplied to asyncio.wait_for, guaranteeing
+ # a timeout or completed process. A terminated Python process will have a
+ # non-empty returncode value.
+ assert process.returncode is not None
+ if process.returncode != 0:
cmd_str = " ".join(cmd)
- raise CalledProcessError(returncode, cmd_str, output=stdout, stderr=stderr)
+ raise CalledProcessError(
+ process.returncode, cmd_str, output=stdout, stderr=stderr
+ )
return (stdout, stderr)
return results.stats["failed"]
+def _flatten_cli_args(cli_args: List[Union[Sequence[str], str]]) -> List[str]:
+ """Allow a user to put long arguments into a list of strs
+ to make the JSON human readable"""
+ flat_args = []
+ for arg in cli_args:
+ if isinstance(arg, str):
+ flat_args.append(arg)
+ continue
+
+ args_as_str = "".join(arg)
+ flat_args.append(args_as_str)
+
+ return flat_args
+
+
async def black_run(
- repo_path: Path, project_config: Dict[str, Any], results: Results
+ project_name: str,
+ repo_path: Optional[Path],
+ project_config: Dict[str, Any],
+ results: Results,
+ no_diff: bool = False,
) -> None:
"""Run Black and record failures"""
+ if not repo_path:
+ results.stats["failed"] += 1
+ results.failed_projects[project_name] = CalledProcessError(
+ 69, [], f"{project_name} has no repo_path: {repo_path}".encode(), b""
+ )
+ return
+
+ stdin_test = project_name.upper() == "STDIN"
cmd = [str(which(BLACK_BINARY))]
if "cli_arguments" in project_config and project_config["cli_arguments"]:
- cmd.extend(*project_config["cli_arguments"])
- cmd.extend(["--check", "--diff", "."])
+ cmd.extend(_flatten_cli_args(project_config["cli_arguments"]))
+ cmd.append("--check")
+ if not no_diff:
+ cmd.append("--diff")
+
+ # Workout if we should read in a python file or search from cwd
+ stdin = None
+ if stdin_test:
+ cmd.append("-")
+ stdin = repo_path.read_bytes()
+ elif "base_path" in project_config:
+ cmd.append(project_config["base_path"])
+ else:
+ cmd.append(".")
- try:
- _stdout, _stderr = await _gen_check_output(cmd, cwd=repo_path)
- except asyncio.TimeoutError:
- results.stats["failed"] += 1
- LOG.error(f"Running black for {repo_path} timed out ({cmd})")
- except CalledProcessError as cpe:
- # TODO: Tune for smarter for higher signal
- # If any other return value than 1 we raise - can disable project in config
- if cpe.returncode == 1:
- if not project_config["expect_formatting_changes"]:
+ timeout = (
+ project_config["timeout_seconds"]
+ if "timeout_seconds" in project_config
+ else TEN_MINUTES_SECONDS
+ )
+ with TemporaryDirectory() as tmp_path:
+ # Prevent reading top-level user configs by manipulating environment variables
+ env = {
+ **os.environ,
+ "XDG_CONFIG_HOME": tmp_path, # Unix-like
+ "USERPROFILE": tmp_path, # Windows (changes `Path.home()` output)
+ }
+
+ cwd_path = repo_path.parent if stdin_test else repo_path
+ try:
+ LOG.debug(f"Running black for {project_name}: {' '.join(cmd)}")
+ _stdout, _stderr = await _gen_check_output(
+ cmd, cwd=cwd_path, env=env, stdin=stdin, timeout=timeout
+ )
+ except asyncio.TimeoutError:
+ results.stats["failed"] += 1
+ LOG.error(f"Running black for {repo_path} timed out ({cmd})")
+ except CalledProcessError as cpe:
+ # TODO: Tune for smarter for higher signal
+ # If any other return value than 1 we raise - can disable project in config
+ if cpe.returncode == 1:
+ if not project_config["expect_formatting_changes"]:
+ results.stats["failed"] += 1
+ results.failed_projects[repo_path.name] = cpe
+ else:
+ results.stats["success"] += 1
+ return
+ elif cpe.returncode > 1:
results.stats["failed"] += 1
results.failed_projects[repo_path.name] = cpe
- else:
- results.stats["success"] += 1
- return
- elif cpe.returncode > 1:
- results.stats["failed"] += 1
- results.failed_projects[repo_path.name] = cpe
- return
+ return
- LOG.error(f"Unknown error with {repo_path}")
- raise
+ LOG.error(f"Unknown error with {repo_path}")
+ raise
# If we get here and expect formatting changes something is up
if project_config["expect_formatting_changes"]:
depth: int = 1,
) -> Optional[Path]:
"""git Clone project or rebase"""
- git_bin = str(which(GIT_BIANRY))
+ git_bin = str(which(GIT_BINARY))
if not git_bin:
LOG.error("No git binary found")
return None
def handle_PermissionError(
- func: Callable, path: Path, exc: Tuple[Any, Any, Any]
+ func: Callable[..., None], path: Path, exc: Tuple[Any, Any, Any]
) -> None:
"""
Handle PermissionError during shutil.rmtree.
long_checkouts: bool = False,
rebase: bool = False,
keep: bool = False,
+ no_diff: bool = False,
) -> None:
"""Check out project and run Black on it + record result"""
loop = asyncio.get_event_loop()
LOG.debug(f"Skipping {project_name} as it's configured as a long checkout")
continue
- repo_path = await git_checkout_or_rebase(work_path, project_config, rebase)
- if not repo_path:
- continue
- await black_run(repo_path, project_config, results)
+ repo_path: Optional[Path] = Path(__file__)
+ stdin_project = project_name.upper() == "STDIN"
+ if not stdin_project:
+ repo_path = await git_checkout_or_rebase(work_path, project_config, rebase)
+ if not repo_path:
+ continue
+ await black_run(project_name, repo_path, project_config, results, no_diff)
- if not keep:
+ if not keep and not stdin_project:
LOG.debug(f"Removing {repo_path}")
rmtree_partial = partial(
rmtree, path=repo_path, onerror=handle_PermissionError
keep: bool = False,
long_checkouts: bool = False,
rebase: bool = False,
+ no_diff: bool = False,
) -> int:
"""
Process the queue with X workers and evaluate results
await asyncio.gather(
*[
project_runner(
- i, config, queue, work_path, results, long_checkouts, rebase, keep
+ i,
+ config,
+ queue,
+ work_path,
+ results,
+ long_checkouts,
+ rebase,
+ keep,
+ no_diff,
)
for i in range(workers)
]