pantsbuild / pants / 19015773527

coverage: 17.872% (-62.4%) from 80.3%
19015773527

Pull #22816

github

web-flow 
Merge a12d75757 into 6c024e162
Pull Request #22816: Update Pants internal Python to 3.14

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

Source File
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0.0
/src/python/pants/backend/docker/util_rules/dockerfile.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 os




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from pants.backend.docker.target_types import DockerImageInstructionsField, DockerImageSourceField




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from pants.engine.fs import CreateDigest, FileContent




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from pants.engine.intrinsics import digest_to_snapshot




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from pants.engine.rules import collect_rules, implicitly, rule




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from pants.engine.target import GeneratedSources, GenerateSourcesRequest, InvalidFieldException




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from pants.engine.unions import UnionRule




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class GenerateDockerfileRequest(GenerateSourcesRequest):




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    # This will always run codegen when hydrating `docker_image`s, performing source validations but










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    # does not generate anything if there are no `instructions` defined on the target.











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    input = DockerImageSourceField




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    output = DockerImageSourceField




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@rule




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async def hydrate_dockerfile(request: GenerateDockerfileRequest) -> GeneratedSources:




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    target = request.protocol_target




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    address = target.address




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    instructions = target[DockerImageInstructionsField].value




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    if instructions and request.protocol_sources.files:




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        raise InvalidFieldException(




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            f"The `{target.alias}` {address} provides both a Dockerfile with the `source` field, "










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            "and Dockerfile contents with the `instructions` field, which is not supported.\n\n"










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            "To fix, please either set `source=None` or `instructions=None`."










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        )










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    if not (instructions or request.protocol_sources.files):




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        raise InvalidFieldException(




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            f"The `{target.alias}` {address} does not specify any Dockerfile.\n\n"










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            "Provide either the filename to a Dockerfile in your workspace as the `source` field "










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            "value, or the Dockerfile content to the `instructions` field."










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        )










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    def dockerfile_path():




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        name_parts = ["Dockerfile", address.target_name, address.generated_name]




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        return os.path.join(address.spec_path, ".".join(filter(bool, name_parts)))




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    output = (




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        await digest_to_snapshot(










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            **implicitly(










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                CreateDigest(










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                    (FileContent(dockerfile_path(), "\n".join([*instructions, ""]).encode()),)










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                ),










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            )










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        )










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        if instructions










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        else request.protocol_sources










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    )










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    return GeneratedSources(output)




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def rules():




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    return (




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        *collect_rules(),










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        UnionRule(GenerateSourcesRequest, GenerateDockerfileRequest),










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    )
























    

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