Mercurial > repos > shellac > sam_consensus_v3

comparison env/lib/python3.9/site-packages/setuptools/installer.py @ 0:4f3585e2f14b draft default tip

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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author shellac
date Mon, 22 Mar 2021 18:12:50 +0000
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-1:000000000000 0:4f3585e2f14b
1 import glob
2 import os
3 import subprocess
4 import sys
5 import tempfile
6 from distutils import log
7 from distutils.errors import DistutilsError
8
9 import pkg_resources
10 from setuptools.wheel import Wheel
11
12
13 def _fixup_find_links(find_links):
14 """Ensure find-links option end-up being a list of strings."""
15 if isinstance(find_links, str):
16 return find_links.split()
17 assert isinstance(find_links, (tuple, list))
18 return find_links
19
20
21 def fetch_build_egg(dist, req): # noqa: C901 # is too complex (16) # FIXME
22 """Fetch an egg needed for building.
23
24 Use pip/wheel to fetch/build a wheel."""
25 # Warn if wheel is not available
26 try:
27 pkg_resources.get_distribution('wheel')
28 except pkg_resources.DistributionNotFound:
29 dist.announce('WARNING: The wheel package is not available.', log.WARN)
30 # Ignore environment markers; if supplied, it is required.
31 req = strip_marker(req)
32 # Take easy_install options into account, but do not override relevant
33 # pip environment variables (like PIP_INDEX_URL or PIP_QUIET); they'll
34 # take precedence.
35 opts = dist.get_option_dict('easy_install')
36 if 'allow_hosts' in opts:
37 raise DistutilsError('the `allow-hosts` option is not supported '
38 'when using pip to install requirements.')
39 quiet = 'PIP_QUIET' not in os.environ and 'PIP_VERBOSE' not in os.environ
40 if 'PIP_INDEX_URL' in os.environ:
41 index_url = None
42 elif 'index_url' in opts:
43 index_url = opts['index_url'][1]
44 else:
45 index_url = None
46 find_links = (
47 _fixup_find_links(opts['find_links'][1])[:] if 'find_links' in opts
48 else []
49 )
50 if dist.dependency_links:
51 find_links.extend(dist.dependency_links)
52 eggs_dir = os.path.realpath(dist.get_egg_cache_dir())
53 environment = pkg_resources.Environment()
54 for egg_dist in pkg_resources.find_distributions(eggs_dir):
55 if egg_dist in req and environment.can_add(egg_dist):
56 return egg_dist
57 with tempfile.TemporaryDirectory() as tmpdir:
58 cmd = [
59 sys.executable, '-m', 'pip',
60 '--disable-pip-version-check',
61 'wheel', '--no-deps',
62 '-w', tmpdir,
63 ]
64 if quiet:
65 cmd.append('--quiet')
66 if index_url is not None:
67 cmd.extend(('--index-url', index_url))
68 for link in find_links or []:
69 cmd.extend(('--find-links', link))
70 # If requirement is a PEP 508 direct URL, directly pass
71 # the URL to pip, as `req @ url` does not work on the
72 # command line.
73 cmd.append(req.url or str(req))
74 try:
75 subprocess.check_call(cmd)
76 except subprocess.CalledProcessError as e:
77 raise DistutilsError(str(e)) from e
78 wheel = Wheel(glob.glob(os.path.join(tmpdir, '*.whl'))[0])
79 dist_location = os.path.join(eggs_dir, wheel.egg_name())
80 wheel.install_as_egg(dist_location)
81 dist_metadata = pkg_resources.PathMetadata(
82 dist_location, os.path.join(dist_location, 'EGG-INFO'))
83 dist = pkg_resources.Distribution.from_filename(
84 dist_location, metadata=dist_metadata)
85 return dist
86
87
88 def strip_marker(req):
89 """
90 Return a new requirement without the environment marker to avoid
91 calling pip with something like `babel; extra == "i18n"`, which
92 would always be ignored.
93 """
94 # create a copy to avoid mutating the input
95 req = pkg_resources.Requirement.parse(str(req))
96 req.marker = None
97 return req