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pantsbuild / pants / 19015773527

02 Nov 2025 05:33PM UTC 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/javascript/package_manager.py
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# Copyright 2024 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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from dataclasses import dataclass
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import nodesemver
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from pants.util.frozendict import FrozenDict
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@dataclass(frozen=True)
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class PackageManager:
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    name: str
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    version: str | None
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    lockfile_name: str
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    generate_lockfile_args: tuple[str, ...]
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    immutable_install_args: tuple[str, ...]
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    workspace_specifier_arg: str
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    run_arg_separator: tuple[str, ...]
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    download_and_execute_args_template: tuple[str, ...]
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    execute_args: tuple[str, ...]
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    current_directory_args: tuple[str, ...]
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    extra_env: FrozenDict[str, str]
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    pack_archive_format: str
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    extra_caches: FrozenDict[str, str]
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    @classmethod
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    def from_string(cls, string: str) -> PackageManager:
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        package_manager_command, *maybe_version = string.split("@")
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        package_manager_version = maybe_version[0] if maybe_version else None
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        if package_manager_command == "npm":
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            return cls.npm(package_manager_version)
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        if package_manager_command == "yarn":
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            return cls.yarn(package_manager_version)
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        if package_manager_command == "pnpm":
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            return cls.pnpm(package_manager_version)
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        raise ValueError(f"Unsupported package manager: {package_manager_command}.")
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    def make_download_and_execute_args(
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        self, package: str, binary_name: str, args: tuple[str, ...]
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    ) -> tuple[str, ...]:
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        filled = tuple(
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            part.format(package=package, executable=binary_name)
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            for part in self.download_and_execute_args_template
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        )
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        return filled + args
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    @classmethod
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    def pnpm(cls, version: str | None) -> PackageManager:
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        return PackageManager(
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            name="pnpm",
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            version=version,
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            lockfile_name="pnpm-lock.yaml",
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            generate_lockfile_args=("install", "--lockfile-only"),
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            immutable_install_args=("install", "--frozen-lockfile"),
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            workspace_specifier_arg="--filter",
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            run_arg_separator=(
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                () if version is None or nodesemver.satisfies(version, ">=7") else ("--",)
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            ),
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            download_and_execute_args_template=("--package", "{package}", "dlx", "{executable}"),
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            execute_args=("exec",),
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            current_directory_args=("--prefix",),
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            extra_env=FrozenDict({"PNPM_HOME": "{chroot}/._pnpm_home"}),
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            pack_archive_format="{}-{}.tgz",
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            extra_caches=FrozenDict({"pnpm_home": "._pnpm_home"}),
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        )
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    @classmethod
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    def yarn(cls, version: str | None) -> PackageManager:
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        return PackageManager(
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            name="yarn",
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            version=version,
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            lockfile_name="yarn.lock",
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            generate_lockfile_args=("install",),
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            immutable_install_args=(
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                ("install", "--frozen-lockfile")
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                if version is None or nodesemver.satisfies(version, "1.x")
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                else ("install", "--immutable")
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            ),
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            workspace_specifier_arg="workspace",
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            run_arg_separator=("--",),
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            download_and_execute_args_template=(
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                "dlx",
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                "--quiet",
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                "--package",
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                "{package}",
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                "{executable}",
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            ),
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            execute_args=("--silent", "exec", "--"),
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            current_directory_args=("--cwd",),
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            extra_env=FrozenDict({"YARN_CACHE_FOLDER": "{chroot}/._yarn_cache"}),
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            pack_archive_format="{}-v{}.tgz",
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            extra_caches=FrozenDict({"yarn_cache": "._yarn_cache"}),
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        )
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    @classmethod
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    def npm(cls, version: str | None) -> PackageManager:
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        return PackageManager(
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            name="npm",
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            version=version,
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            lockfile_name="package-lock.json",
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            generate_lockfile_args=("install", "--package-lock-only"),
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            immutable_install_args=("clean-install",),
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            workspace_specifier_arg="--workspace",
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            run_arg_separator=("--",),
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            download_and_execute_args_template=(
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                "exec",
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                "--yes",
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                "--package",
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                "{package}",
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                "--",
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                "{executable}",
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            ),
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            execute_args=("exec", "--no", "--"),
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            current_directory_args=("--prefix",),
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            extra_env=FrozenDict(),
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            pack_archive_format="{}-{}.tgz",
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            extra_caches=FrozenDict(),
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        )
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