20332790708

Committed 18 Dec 2025 09:48AM UTC coverage: 64.992% (-15.3%) from 80.295%

Build # 20332790708

Build Type

Pull #22949

github

Committed by

web-flow

Commit Message

Merge f730a56cd into 407284c67

Pull Request Pull Request #22949: Add experimental uv resolver for Python lockfiles

Run Details

54 of 97 new or added lines in 5 files covered. (55.67%)

8270 existing lines in 295 files now uncovered.

48990 of 75379 relevant lines covered (64.99%)

1.81 hits per line

Source File
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50.0

/src/python/pants/backend/python/providers/python_build_standalone/constraints.py

# Copyright 2024 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
from __future__ import annotations

import operator
from collections.abc import Callable, Iterable
from typing import Protocol, cast

from packaging.version import Version

_OPERATORS = (
    (">=", operator.ge),
    ("<=", operator.le),
    ("==", operator.eq),
    ("!=", operator.ne),
    # `>` and `<` must come last since these strings are shorter!
    (">", operator.gt),
    ("<", operator.lt),
)


class ConstraintParseError(Exception):
    pass


class ConstraintSatisfied(Protocol):
    def is_satisified(self, version: Version) -> bool: ...


class Constraint(ConstraintSatisfied):
    """A single version constraint with operator."""

    def __init__(
        self, cmp_callback: Callable[[Version, Version], bool], cmp_version: Version
    ) -> None:
        self.cmp_callback: Callable[[Version, Version], bool] = cmp_callback
        self.cmp_version: Version = cmp_version

    def is_satisified(self, version: Version) -> bool:
        return self.cmp_callback(version, self.cmp_version)

    @classmethod
    def parse(cls, constraint: str) -> Constraint:
        constraint = constraint.strip()

        for op, callback in _OPERATORS:
            constraint_without_op = constraint.removeprefix(op)
            if constraint_without_op != constraint:
                cmp_callback = cast("Callable[[Version, Version], bool]", callback)
                cmp_version = Version(constraint_without_op.strip())
                return cls(cmp_callback, cmp_version)

        raise ConstraintParseError(
            f"A constraint must start with a comparison operator, i.e. {', '.join(x[0] for x in _OPERATORS)}, found {constraint!r}."
        )


class ConstraintsList(ConstraintSatisfied):
    """A list of constraints which must all match (i.e., they are AND'ed together)."""

    def __init__(self, constraints: Iterable[ConstraintSatisfied]) -> None:
        self.constraints: tuple[ConstraintSatisfied, ...] = tuple(constraints)

    def is_satisified(self, version: Version) -> bool:
        for constraint in self.constraints:
            if not constraint.is_satisified(version):
                return False
        return True

    @classmethod
    def parse(cls, constraints_str: str) -> ConstraintsList:
        parts = constraints_str.split(",")
        constraints = [Constraint.parse(part.strip()) for part in parts]
        return cls(constraints)

1	# Copyright 2024 Pants project contributors (see CONTRIBUTORS.md).
2	# Licensed under the Apache License, Version 2.0 (see LICENSE).
3	from __future__ import annotations	2✔
4
5	import operator	2✔
6	from collections.abc import Callable, Iterable	2✔
7	from typing import Protocol, cast	2✔
8
9	from packaging.version import Version	2✔
10
11	_OPERATORS = (	2✔
12	(">=", operator.ge),
13	("<=", operator.le),
14	("==", operator.eq),
15	("!=", operator.ne),
16	# `>` and `<` must come last since these strings are shorter!
17	(">", operator.gt),
18	("<", operator.lt),
19	)
20
21
22	class ConstraintParseError(Exception):	2✔
23	pass	2✔
24
25
26	class ConstraintSatisfied(Protocol):	2✔
27	def is_satisified(self, version: Version) -> bool: ...
28
29
30	class Constraint(ConstraintSatisfied):	2✔
31	"""A single version constraint with operator."""
32
33	def __init__(	2✔
34	self, cmp_callback: Callable[[Version, Version], bool], cmp_version: Version
35	) -> None:
UNCOV 36	self.cmp_callback: Callable[[Version, Version], bool] = cmp_callback	×
UNCOV 37	self.cmp_version: Version = cmp_version	×
38
39	def is_satisified(self, version: Version) -> bool:	2✔
UNCOV 40	return self.cmp_callback(version, self.cmp_version)	×
41
42	@classmethod	2✔
43	def parse(cls, constraint: str) -> Constraint:	2✔
UNCOV 44	constraint = constraint.strip()	×
45
UNCOV 46	for op, callback in _OPERATORS:	×
UNCOV 47	constraint_without_op = constraint.removeprefix(op)	×
UNCOV 48	if constraint_without_op != constraint:	×
UNCOV 49	cmp_callback = cast("Callable[[Version, Version], bool]", callback)	×
UNCOV 50	cmp_version = Version(constraint_without_op.strip())	×
UNCOV 51	return cls(cmp_callback, cmp_version)	×
52
53	raise ConstraintParseError(	×
54	f"A constraint must start with a comparison operator, i.e. {', '.join(x[0] for x in _OPERATORS)}, found {constraint!r}."
55	)
56
57
58	class ConstraintsList(ConstraintSatisfied):	2✔
59	"""A list of constraints which must all match (i.e., they are AND'ed together)."""
60
61	def __init__(self, constraints: Iterable[ConstraintSatisfied]) -> None:	2✔
UNCOV 62	self.constraints: tuple[ConstraintSatisfied, ...] = tuple(constraints)	×
63
64	def is_satisified(self, version: Version) -> bool:	2✔
UNCOV 65	for constraint in self.constraints:	×
UNCOV 66	if not constraint.is_satisified(version):	×
UNCOV 67	return False	×
UNCOV 68	return True	×
69
70	@classmethod	2✔
71	def parse(cls, constraints_str: str) -> ConstraintsList:	2✔
UNCOV 72	parts = constraints_str.split(",")	×
UNCOV 73	constraints = [Constraint.parse(part.strip()) for part in parts]	×
UNCOV 74	return cls(constraints)	×

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