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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.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):
- # type: (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, # type: BuildEnvironment
- setup_py_path, # type: str
- source_dir, # type: str
- isolated, # type: bool
- details, # type: str
- ):
- # type: (...) -> 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:
- call_subprocess(
- args,
- cwd=source_dir,
- command_desc='python setup.py egg_info',
- )
- # Return the .egg-info directory.
- return _find_egg_info(egg_info_dir)
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