git.reasoningtechnology.com Git - SubU/blob

   1 """Metadata generation logic for legacy source distributions.
   2 """
   3
   4 import logging
   5 import os
   6
   7 from pip._internal.build_env import BuildEnvironment
   8 from pip._internal.cli.spinners import open_spinner
   9 from pip._internal.exceptions import (
  10     InstallationError,
  11     InstallationSubprocessError,
  12     MetadataGenerationFailed,
  13 )
  14 from pip._internal.utils.setuptools_build import make_setuptools_egg_info_args
  15 from pip._internal.utils.subprocess import call_subprocess
  16 from pip._internal.utils.temp_dir import TempDirectory
  17
  18 logger = logging.getLogger(__name__)
  19
  20
  21 def _find_egg_info(directory: str) -> str:
  22     """Find an .egg-info subdirectory in `directory`."""
  23     filenames = [f for f in os.listdir(directory) if f.endswith(".egg-info")]
  24
  25     if not filenames:
  26         raise InstallationError(f"No .egg-info directory found in {directory}")
  27
  28     if len(filenames) > 1:
  29         raise InstallationError(
  30             "More than one .egg-info directory found in {}".format(directory)
  31         )
  32
  33     return os.path.join(directory, filenames[0])
  34
  35
  36 def generate_metadata(
  37     build_env: BuildEnvironment,
  38     setup_py_path: str,
  39     source_dir: str,
  40     isolated: bool,
  41     details: str,
  42 ) -> str:
  43     """Generate metadata using setup.py-based defacto mechanisms.
  44
  45     Returns the generated metadata directory.
  46     """
  47     logger.debug(
  48         "Running setup.py (path:%s) egg_info for package %s",
  49         setup_py_path,
  50         details,
  51     )
  52
  53     egg_info_dir = TempDirectory(kind="pip-egg-info", globally_managed=True).path
  54
  55     args = make_setuptools_egg_info_args(
  56         setup_py_path,
  57         egg_info_dir=egg_info_dir,
  58         no_user_config=isolated,
  59     )
  60
  61     with build_env:
  62         with open_spinner("Preparing metadata (setup.py)") as spinner:
  63             try:
  64                 call_subprocess(
  65                     args,
  66                     cwd=source_dir,
  67                     command_desc="python setup.py egg_info",
  68                     spinner=spinner,
  69                 )
  70             except InstallationSubprocessError as error:
  71                 raise MetadataGenerationFailed(package_details=details) from error
  72
  73     # Return the .egg-info directory.
  74     return _find_egg_info(egg_info_dir)