19015773527

Committed 02 Nov 2025 05:33PM UTC coverage: 17.872% (-62.4%) from 80.3%

Build # 19015773527

Build Type

Pull #22816

github

Committed by

web-flow

Commit Message

Merge a12d75757 into 6c024e162

Pull Request Pull Request #22816: Update Pants internal Python to 3.14

Run Details

4 of 5 new or added lines in 3 files covered. (80.0%)

28452 existing lines in 683 files now uncovered.

9831 of 55007 relevant lines covered (17.87%)

0.18 hits per line

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0.0

/src/python/pants/backend/python/lint/black/rules.py

1	# Copyright 2019 Pants project contributors (see CONTRIBUTORS.md).
2	# Licensed under the Apache License, Version 2.0 (see LICENSE).
3
UNCOV 4	from __future__ import annotations	×
5
UNCOV 6	from typing import cast	×
7
UNCOV 8	from pants.backend.python.lint.black.subsystem import Black, BlackFieldSet	×
UNCOV 9	from pants.backend.python.subsystems.setup import PythonSetup	×
UNCOV 10	from pants.backend.python.util_rules import pex	×
UNCOV 11	from pants.backend.python.util_rules.interpreter_constraints import InterpreterConstraints	×
UNCOV 12	from pants.backend.python.util_rules.pex import VenvPexProcess, create_venv_pex	×
UNCOV 13	from pants.core.goals.fmt import AbstractFmtRequest, FmtResult, FmtTargetsRequest, Partitions	×
UNCOV 14	from pants.core.util_rules.config_files import find_config_file	×
UNCOV 15	from pants.engine.fs import MergeDigests	×
UNCOV 16	from pants.engine.intrinsics import merge_digests	×
UNCOV 17	from pants.engine.process import execute_process_or_raise	×
UNCOV 18	from pants.engine.rules import collect_rules, concurrently, implicitly, rule	×
UNCOV 19	from pants.util.logging import LogLevel	×
UNCOV 20	from pants.util.strutil import pluralize, softwrap	×
21
22
UNCOV 23	class BlackRequest(FmtTargetsRequest):	×
UNCOV 24	field_set_type = BlackFieldSet	×
UNCOV 25	tool_subsystem = Black # type: ignore[assignment]	×
26
27
UNCOV 28	async def _run_black(	×
29	request: AbstractFmtRequest.Batch,
30	black: Black,
31	interpreter_constraints: InterpreterConstraints,
32	) -> FmtResult:
33	black_pex_get = create_venv_pex(	×
34	**implicitly(black.to_pex_request(interpreter_constraints=interpreter_constraints))
35	)
36	config_files_get = find_config_file(black.config_request(request.snapshot.dirs))	×
37	black_pex, config_files = await concurrently(black_pex_get, config_files_get)	×
38
39	input_digest = await merge_digests(	×
40	MergeDigests((request.snapshot.digest, config_files.snapshot.digest))
41	)
42	result = await execute_process_or_raise(	×
43	**implicitly(
44	VenvPexProcess(
45	black_pex,
46	argv=(
47	*(("--config", black.config) if black.config else ()),
48	"-W",
49	"{pants_concurrency}",
50	*black.args,
51	*request.files,
52	),
53	input_digest=input_digest,
54	output_files=request.files,
55	# Note - the cache directory is not used by Pants,
56	# and we pass through a temporary directory to neutralize
57	# Black's caching behavior in favor of Pants' caching.
58	extra_env={"BLACK_CACHE_DIR": "__pants_black_cache"},
59	concurrency_available=len(request.files),
60	description=f"Run Black on {pluralize(len(request.files), 'file')}.",
61	level=LogLevel.DEBUG,
62	)
63	)
64	)
65	return await FmtResult.create(request, result)	×
66
67
UNCOV 68	@rule	×
UNCOV 69	async def partition_black(	×
70	request: BlackRequest.PartitionRequest, black: Black, python_setup: PythonSetup
71	) -> Partitions:
72	if black.skip:	×
73	return Partitions()	×
74
75	# Black requires 3.6+ but uses the typed-ast library to work with 2.7, 3.4, 3.5, 3.6, and 3.7.
76	# However, typed-ast does not understand 3.8+, so instead we must run Black with Python 3.8+
77	# when relevant. We only do this if <3.8 can't be used, as we don't want a loose requirement
78	# like `>=3.6` to result in requiring Python 3.8, which would error if 3.8 is not installed on
79	# the machine.
80	tool_interpreter_constraints = black.interpreter_constraints	×
81	if black.options.is_default("interpreter_constraints"):	×
82	try:	×
83	# Don't compute this unless we have to, since it might fail.
84	all_interpreter_constraints = InterpreterConstraints.create_from_field_sets(	×
85	request.field_sets, python_setup
86	)
87	except ValueError:	×
88	raise ValueError(	×
89	softwrap(
90	"""
91	Could not compute an interpreter to run Black on, due to conflicting requirements
92	in the repo.
93
94	Please set `[black].interpreter_constraints` explicitly in pants.toml to a
95	suitable interpreter.
96	"""
97	)
98	)
99	if all_interpreter_constraints.requires_python38_or_newer(	×
100	python_setup.interpreter_versions_universe
101	):
102	tool_interpreter_constraints = all_interpreter_constraints	×
103
104	return Partitions.single_partition(	×
105	(field_set.source.file_path for field_set in request.field_sets),
106	metadata=tool_interpreter_constraints,
107	)
108
109
UNCOV 110	@rule(desc="Format with Black", level=LogLevel.DEBUG)	×
UNCOV 111	async def black_fmt(request: BlackRequest.Batch, black: Black) -> FmtResult:	×
112	return await _run_black(	×
113	request, black, cast(InterpreterConstraints, request.partition_metadata)
114	)
115
116
UNCOV 117	def rules():	×
UNCOV 118	return (	×
119	*collect_rules(),
120	*BlackRequest.rules(),
121	*pex.rules(),
122	)

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