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pantsbuild / pants / 18252174847

05 Oct 2025 01:36AM UTC coverage: 43.382% (-36.9%) from 80.261%
18252174847

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github

web-flow
run tests on mac arm (#22717)

Just doing the minimal to pull forward the x86_64 pattern.

ref #20993

25776 of 59416 relevant lines covered (43.38%)

1.3 hits per line

Source File
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69.05
/src/python/pants/backend/docker/util_rules/docker_build_env.py
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# Copyright 2021 Pants project contributors (see CONTRIBUTORS.md).
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# Licensed under the Apache License, Version 2.0 (see LICENSE).
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from __future__ import annotations
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import logging
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from collections.abc import Mapping
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from dataclasses import dataclass
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from pants.backend.docker.subsystems.docker_options import DockerOptions
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from pants.backend.docker.util_rules.docker_build_args import (
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    DockerBuildArgsRequest,
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    docker_build_args,
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)
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from pants.backend.docker.utils import KeyValueSequenceUtil
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from pants.core.util_rules.env_vars import environment_vars_subset
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from pants.engine.env_vars import EnvironmentVars, EnvironmentVarsRequest
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from pants.engine.rules import collect_rules, implicitly, rule
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from pants.engine.target import Target
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logger = logging.getLogger(__name__)
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class DockerBuildEnvironmentError(ValueError):
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    @classmethod
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    def from_key_error(cls, e: KeyError) -> DockerBuildEnvironmentError:
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        return cls(
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            f"The Docker environment variable {e} is undefined. You may provide a value for "
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            "this variable either in `[docker].env_vars` or in Pants's own environment."
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        )
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@dataclass(frozen=True)
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class DockerBuildEnvironment:
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    environment: EnvironmentVars
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    @classmethod
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    def create(
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        cls,
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        env: Mapping[str, str],
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    ) -> DockerBuildEnvironment:
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        return cls(EnvironmentVars(env))
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    def __getitem__(self, key: str) -> str:
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        try:
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            return self.environment[key]
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        except KeyError as e:
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            raise DockerBuildEnvironmentError.from_key_error(e) from e
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    def get(self, key: str, default: str | None = None) -> str:
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        if default is None:
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            return self[key]
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        return self.environment.get(key, default)
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@dataclass(frozen=True)
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class DockerBuildEnvironmentRequest:
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    target: Target
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@rule
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async def docker_build_environment_vars(
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    request: DockerBuildEnvironmentRequest,
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    docker_options: DockerOptions,
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    docker_env_aware: DockerOptions.EnvironmentAware,
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) -> DockerBuildEnvironment:
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    build_args = await docker_build_args(DockerBuildArgsRequest(request.target), **implicitly())
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    env_vars = KeyValueSequenceUtil.from_strings(
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        *{build_arg for build_arg in build_args if "=" not in build_arg},
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        *docker_env_aware.env_vars,
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    )
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    env = await environment_vars_subset(EnvironmentVarsRequest(tuple(env_vars)), **implicitly())
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    return DockerBuildEnvironment.create(env)
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def rules():
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    return collect_rules()
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