djavu-asus/elpy/rpc-venv/lib/python3.11/site-packages/setuptools/installer.py

   1 import glob
   2 import os
   3 import subprocess
   4 import sys
   5 import tempfile
   6 import warnings
   7 from distutils import log
   8 from distutils.errors import DistutilsError
   9
  10 import pkg_resources
  11 from setuptools.wheel import Wheel
  12 from ._deprecation_warning import SetuptoolsDeprecationWarning
  13
  14
  15 def _fixup_find_links(find_links):
  16     """Ensure find-links option end-up being a list of strings."""
  17     if isinstance(find_links, str):
  18         return find_links.split()
  19     assert isinstance(find_links, (tuple, list))
  20     return find_links
  21
  22
  23 def fetch_build_egg(dist, req):  # noqa: C901  # is too complex (16)  # FIXME
  24     """Fetch an egg needed for building.
  25
  26     Use pip/wheel to fetch/build a wheel."""
  27     warnings.warn(
  28         "setuptools.installer is deprecated. Requirements should "
  29         "be satisfied by a PEP 517 installer.",
  30         SetuptoolsDeprecationWarning,
  31     )
  32     # Warn if wheel is not available
  33     try:
  34         pkg_resources.get_distribution('wheel')
  35     except pkg_resources.DistributionNotFound:
  36         dist.announce('WARNING: The wheel package is not available.', log.WARN)
  37     # Ignore environment markers; if supplied, it is required.
  38     req = strip_marker(req)
  39     # Take easy_install options into account, but do not override relevant
  40     # pip environment variables (like PIP_INDEX_URL or PIP_QUIET); they'll
  41     # take precedence.
  42     opts = dist.get_option_dict('easy_install')
  43     if 'allow_hosts' in opts:
  44         raise DistutilsError('the `allow-hosts` option is not supported '
  45                              'when using pip to install requirements.')
  46     quiet = 'PIP_QUIET' not in os.environ and 'PIP_VERBOSE' not in os.environ
  47     if 'PIP_INDEX_URL' in os.environ:
  48         index_url = None
  49     elif 'index_url' in opts:
  50         index_url = opts['index_url'][1]
  51     else:
  52         index_url = None
  53     find_links = (
  54         _fixup_find_links(opts['find_links'][1])[:] if 'find_links' in opts
  55         else []
  56     )
  57     if dist.dependency_links:
  58         find_links.extend(dist.dependency_links)
  59     eggs_dir = os.path.realpath(dist.get_egg_cache_dir())
  60     environment = pkg_resources.Environment()
  61     for egg_dist in pkg_resources.find_distributions(eggs_dir):
  62         if egg_dist in req and environment.can_add(egg_dist):
  63             return egg_dist
  64     with tempfile.TemporaryDirectory() as tmpdir:
  65         cmd = [
  66             sys.executable, '-m', 'pip',
  67             '--disable-pip-version-check',
  68             'wheel', '--no-deps',
  69             '-w', tmpdir,
  70         ]
  71         if quiet:
  72             cmd.append('--quiet')
  73         if index_url is not None:
  74             cmd.extend(('--index-url', index_url))
  75         for link in find_links or []:
  76             cmd.extend(('--find-links', link))
  77         # If requirement is a PEP 508 direct URL, directly pass
  78         # the URL to pip, as `req @ url` does not work on the
  79         # command line.
  80         cmd.append(req.url or str(req))
  81         try:
  82             subprocess.check_call(cmd)
  83         except subprocess.CalledProcessError as e:
  84             raise DistutilsError(str(e)) from e
  85         wheel = Wheel(glob.glob(os.path.join(tmpdir, '*.whl'))[0])
  86         dist_location = os.path.join(eggs_dir, wheel.egg_name())
  87         wheel.install_as_egg(dist_location)
  88         dist_metadata = pkg_resources.PathMetadata(
  89             dist_location, os.path.join(dist_location, 'EGG-INFO'))
  90         dist = pkg_resources.Distribution.from_filename(
  91             dist_location, metadata=dist_metadata)
  92         return dist
  93
  94
  95 def strip_marker(req):
  96     """
  97     Return a new requirement without the environment marker to avoid
  98     calling pip with something like `babel; extra == "i18n"`, which
  99     would always be ignored.
 100     """
 101     # create a copy to avoid mutating the input
 102     req = pkg_resources.Requirement.parse(str(req))
 103     req.marker = None
 104     return req