File indexing completed on 2024-11-24 05:05:58

 """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,
     InstallationSubprocessError,
     MetadataGenerationFailed,
 )
 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:
             try:
                 call_subprocess(
                     args,
                     cwd=source_dir,
                     command_desc="python setup.py egg_info",
                     spinner=spinner,
                 )
             except InstallationSubprocessError as error:
                 raise MetadataGenerationFailed(package_details=details) from error
 
     # Return the .egg-info directory.
     return _find_egg_info(egg_info_dir)