75 lines
2.1 KiB
Python
75 lines
2.1 KiB
Python
"""Metadata generation logic for legacy source distributions.
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"""
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import logging
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import os
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from pip._internal.build_env import BuildEnvironment
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from pip._internal.cli.spinners import open_spinner
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from pip._internal.exceptions import (
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InstallationError,
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InstallationSubprocessError,
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MetadataGenerationFailed,
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)
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from pip._internal.utils.setuptools_build import make_setuptools_egg_info_args
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from pip._internal.utils.subprocess import call_subprocess
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from pip._internal.utils.temp_dir import TempDirectory
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logger = logging.getLogger(__name__)
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def _find_egg_info(directory: str) -> str:
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"""Find an .egg-info subdirectory in `directory`."""
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filenames = [f for f in os.listdir(directory) if f.endswith(".egg-info")]
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if not filenames:
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raise InstallationError(f"No .egg-info directory found in {directory}")
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if len(filenames) > 1:
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raise InstallationError(
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"More than one .egg-info directory found in {}".format(directory)
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)
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return os.path.join(directory, filenames[0])
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def generate_metadata(
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build_env: BuildEnvironment,
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setup_py_path: str,
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source_dir: str,
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isolated: bool,
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details: str,
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) -> str:
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"""Generate metadata using setup.py-based defacto mechanisms.
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Returns the generated metadata directory.
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"""
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logger.debug(
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"Running setup.py (path:%s) egg_info for package %s",
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setup_py_path,
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details,
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)
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egg_info_dir = TempDirectory(kind="pip-egg-info", globally_managed=True).path
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args = make_setuptools_egg_info_args(
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setup_py_path,
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egg_info_dir=egg_info_dir,
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no_user_config=isolated,
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)
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with build_env:
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with open_spinner("Preparing metadata (setup.py)") as spinner:
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try:
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call_subprocess(
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args,
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cwd=source_dir,
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command_desc="python setup.py egg_info",
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spinner=spinner,
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)
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except InstallationSubprocessError as error:
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raise MetadataGenerationFailed(package_details=details) from error
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# Return the .egg-info directory.
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return _find_egg_info(egg_info_dir)
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