Mercurial > repos > shellac > sam_consensus_v3

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