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/tools/preamble/rules.py

1	# Copyright 2022 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	import dataclasses	×
UNCOV 7	import datetime	×
UNCOV 8	import re	×
UNCOV 9	import string	×
UNCOV 10	from typing import Any	×
11
UNCOV 12	from pants.backend.tools.preamble.subsystem import PreambleSubsystem	×
UNCOV 13	from pants.core.goals.fmt import FmtFilesRequest, FmtResult, Partitions	×
UNCOV 14	from pants.engine.fs import CreateDigest	×
UNCOV 15	from pants.engine.intrinsics import digest_to_snapshot, get_digest_contents	×
UNCOV 16	from pants.engine.rules import collect_rules, implicitly, rule	×
UNCOV 17	from pants.util.logging import LogLevel	×
UNCOV 18	from pants.util.memo import memoized	×
19
20
UNCOV 21	class PreambleRequest(FmtFilesRequest):	×
UNCOV 22	tool_subsystem = PreambleSubsystem # type: ignore[assignment]	×
23
24
UNCOV 25	@memoized	×
UNCOV 26	def _template_checker_regex(template: str) -> re.Pattern:	×
27	shebang = r"(?P<shebang>#!.*\n)"	×
28	if re.match(shebang, template):	×
29	# If the template already contains a shebang, don't attempt to match one.
30	shebang = r"(?P<shebang>)"	×
31	maybe_shebang = f"{shebang}?"	×
32
33	subbed = string.Template(template).safe_substitute(year=r"====YEAR====")	×
34	raw_regex = re.escape(subbed).replace("====YEAR====", r"\d{4}")	×
35	maybe_template = f"(?P<template>{raw_regex})?"	×
36
37	# Wrap in `?s` to enable matching newlines with `.`.
38	body = "(?s:(?P<body>.*))"	×
39
40	return re.compile(maybe_shebang + maybe_template + body)	×
41
42
UNCOV 43	@memoized	×
UNCOV 44	def _substituted_template(template: str) -> str:	×
45	return string.Template(template).safe_substitute(year=datetime.date.today().year)	×
46
47
UNCOV 48	@rule	×
UNCOV 49	async def partition_inputs(	×
50	request: PreambleRequest.PartitionRequest, preamble_subsystem: PreambleSubsystem
51	) -> Partitions[Any]:
52	if preamble_subsystem.skip:	×
53	return Partitions()	×
54
55	return Partitions.single_partition(	×
56	sorted(preamble_subsystem.get_template_by_path(request.files))
57	)
58
59
UNCOV 60	@rule(desc="Add preambles", level=LogLevel.DEBUG)	×
UNCOV 61	async def preamble_fmt(	×
62	request: PreambleRequest.Batch, preamble_subsystem: PreambleSubsystem
63	) -> FmtResult:
64	template_by_path = preamble_subsystem.get_template_by_path(request.snapshot.files)	×
65	digest_contents = await get_digest_contents(request.snapshot.digest)	×
66	contents_by_path = {file_content.path: file_content for file_content in digest_contents}	×
67
68	for path, template in template_by_path.items():	×
69	regex = _template_checker_regex(template)	×
70	file_content = contents_by_path[path].content	×
71	matched = regex.fullmatch(file_content.decode("utf-8"))	×
72	# The regex produced by `_template_checker_regex` is infallible.
73	assert matched	×
74	if not matched.group("template"):	×
75	shebang = matched.group("shebang")	×
76	body = matched.group("body")	×
77	new_content = (shebang if shebang else "") + _substituted_template(template) + body	×
78	contents_by_path[path] = dataclasses.replace(	×
79	contents_by_path[path], content=new_content.encode("utf-8")
80	)
81
82	output_snapshot = await digest_to_snapshot(	×
83	**implicitly(CreateDigest(contents_by_path.values()))
84	)
85
86	return FmtResult(	×
87	input=request.snapshot,
88	output=output_snapshot,
89	stdout="",
90	stderr="",
91	tool_name=request.tool_name,
92	)
93
94
UNCOV 95	def rules():	×
UNCOV 96	return (	×
97	*collect_rules(),
98	*PreambleRequest.rules(),
99	)

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