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