#!/usr/libexec/platform-python

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# -*- coding: utf-8 -*-

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#

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# Copyright 2010 Per Øyvind Karlsen <proyvind@moondrake.org>

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# Copyright 2015 Neal Gompa <ngompa13@gmail.com>

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#

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# This program is free software. It may be redistributed and/or modified under

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# the terms of the LGPL version 2.1 (or later).

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#

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# RPM python dependency generator, using .egg-info/.egg-link/.dist-info data

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#

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from __future__ import print_function

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from getopt import getopt

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from os.path import basename, dirname, isdir, sep

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from sys import argv, stdin, version

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from distutils.sysconfig import get_python_lib

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from warnings import warn

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opts, args = getopt(

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argv[1:], 'hPRrCEMmLl:',

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['help', 'provides', 'requires', 'recommends', 'conflicts', 'extras', 'majorver-provides', 'majorver-provides-versions=', 'majorver-only', 'legacy-provides' , 'legacy'])

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Provides = False

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Requires = False

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Recommends = False

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Conflicts = False

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Extras = False

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Provides_PyMajorVer_Variant = False

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Provides_PyMajorVer_Versions = None

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PyMajorVer_Deps = False

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legacy_Provides = False

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legacy = False

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for o, a in opts:

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if o in ('-h', '--help'):

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print('-h, --help\tPrint help')

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print('-P, --provides\tPrint Provides')

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print('-R, --requires\tPrint Requires')

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print('-r, --recommends\tPrint Recommends')

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print('-C, --conflicts\tPrint Conflicts')

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print('-E, --extras\tPrint Extras ')

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print('-M, --majorver-provides\tPrint extra Provides with Python major version only for all Python versions')

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print(' --majorver-provides-versions VERSIONS\n'

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' \tPrint extra Provides with Python major version only for listed Python VERSIONS (comma separated, no spaces, e.g. 2.7,3.6)')

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print('-m, --majorver-only\tPrint Provides/Requires with Python major version only')

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print('-L, --legacy-provides\tPrint extra legacy pythonegg Provides')

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print('-l, --legacy\tPrint legacy pythonegg Provides/Requires instead')

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exit(1)

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elif o in ('-P', '--provides'):

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Provides = True

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elif o in ('-R', '--requires'):

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Requires = True

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elif o in ('-r', '--recommends'):

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Recommends = True

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elif o in ('-C', '--conflicts'):

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Conflicts = True

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elif o in ('-E', '--extras'):

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Extras = True

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elif o in ('-M', '--majorver-provides'):

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Provides_PyMajorVer_Variant = True

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elif o in ('--majorver-provides-versions'):

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Provides_PyMajorVer_Versions = a.split(",")

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elif o in ('-m', '--majorver-only'):

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PyMajorVer_Deps = True

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elif o in ('-L', '--legacy-provides'):

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legacy_Provides = True

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elif o in ('-l', '--legacy'):

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legacy = True

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if Provides_PyMajorVer_Variant and Provides_PyMajorVer_Versions:

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print("Error, options --majorver-provides and --majorver-provides-versions are mutually incompatible.")

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exit(2)

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if Requires:

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py_abi = True

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else:

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py_abi = False

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py_deps = {}

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if args:

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files = args

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else:

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files = stdin.readlines()

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for f in files:

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f = f.strip()

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lower = f.lower()

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name = 'python(abi)'

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# add dependency based on path, versioned if within versioned python directory

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if py_abi and (lower.endswith('.py') or lower.endswith('.pyc') or lower.endswith('.pyo')):

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if name not in py_deps:

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py_deps[name] = []

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purelib = get_python_lib(standard_lib=0, plat_specific=0).split(version[:3])[0]

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platlib = get_python_lib(standard_lib=0, plat_specific=1).split(version[:3])[0]

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for lib in (purelib, platlib):

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if lib in f:

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spec = ('==', f.split(lib)[1].split(sep)[0])

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if spec not in py_deps[name]:

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py_deps[name].append(spec)

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# XXX: hack to workaround RPM internal dependency generator not passing directories

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lower_dir = dirname(lower)

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if lower_dir.endswith('.egg') or \

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lower_dir.endswith('.egg-info') or \

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lower_dir.endswith('.dist-info'):

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lower = lower_dir

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f = dirname(f)

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# Determine provide, requires, conflicts & recommends based on egg/dist metadata

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if lower.endswith('.egg') or \

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lower.endswith('.egg-info') or \

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lower.endswith('.dist-info'):

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# This import is very slow, so only do it if needed

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from pkg_resources import Distribution, FileMetadata, PathMetadata

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dist_name = basename(f)

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if isdir(f):

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path_item = dirname(f)

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metadata = PathMetadata(path_item, f)

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else:

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path_item = f

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metadata = FileMetadata(f)

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dist = Distribution.from_location(path_item, dist_name, metadata)

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# Check if py_version is defined in the metadata file/directory name

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if not dist.py_version:

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# Try to parse the Python version from the path the metadata

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# resides at (e.g. /usr/lib/pythonX.Y/site-packages/...)

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import re

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res = re.search(r"/python(?P<pyver>\d+\.\d+)/", path_item)

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if res:

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dist.py_version = res.group('pyver')

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else:

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warn("Version for {!r} has not been found".format(dist), RuntimeWarning)

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continue

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# XXX: https://github.com/pypa/setuptools/pull/1275

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import platform

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platform.python_version = lambda: dist.py_version

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if Provides_PyMajorVer_Variant or PyMajorVer_Deps or legacy_Provides or legacy or Provides_PyMajorVer_Versions:

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# Get the Python major version

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pyver_major = dist.py_version.split('.')[0]

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if Provides:

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# If egg/dist metadata says package name is python, we provide python(abi)

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if dist.key == 'python':

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name = 'python(abi)'

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if name not in py_deps:

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py_deps[name] = []

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py_deps[name].append(('==', dist.py_version))

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if not legacy or not PyMajorVer_Deps:

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name = 'python{}dist({})'.format(dist.py_version, dist.key)

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if name not in py_deps:

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py_deps[name] = []

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if Provides_PyMajorVer_Variant or PyMajorVer_Deps or \

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(Provides_PyMajorVer_Versions and dist.py_version in Provides_PyMajorVer_Versions):

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pymajor_name = 'python{}dist({})'.format(pyver_major, dist.key)

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if pymajor_name not in py_deps:

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py_deps[pymajor_name] = []

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if legacy or legacy_Provides:

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legacy_name = 'pythonegg({})({})'.format(pyver_major, dist.key)

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if legacy_name not in py_deps:

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py_deps[legacy_name] = []

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if dist.version:

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spec = ('==', dist.version)

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if spec not in py_deps[name]:

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if not legacy:

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py_deps[name].append(spec)

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if Provides_PyMajorVer_Variant or \

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(Provides_PyMajorVer_Versions and dist.py_version in Provides_PyMajorVer_Versions):

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py_deps[pymajor_name].append(spec)

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if legacy or legacy_Provides:

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py_deps[legacy_name].append(spec)

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if Requires or (Recommends and dist.extras):

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name = 'python(abi)'

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# If egg/dist metadata says package name is python, we don't add dependency on python(abi)

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if dist.key == 'python':

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py_abi = False

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if name in py_deps:

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py_deps.pop(name)

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elif py_abi and dist.py_version:

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if name not in py_deps:

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py_deps[name] = []

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spec = ('==', dist.py_version)

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if spec not in py_deps[name]:

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py_deps[name].append(spec)

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deps = dist.requires()

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if Recommends:

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depsextras = dist.requires(extras=dist.extras)

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if not Requires:

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for dep in reversed(depsextras):

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if dep in deps:

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depsextras.remove(dep)

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deps = depsextras

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# add requires/recommends based on egg/dist metadata

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for dep in deps:

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if legacy:

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name = 'pythonegg({})({})'.format(pyver_major, dep.key)

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else:

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if PyMajorVer_Deps:

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name = 'python{}dist({})'.format(pyver_major, dep.key)

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else:

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name = 'python{}dist({})'.format(dist.py_version, dep.key)

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for spec in dep.specs:

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if spec[0] != '!=':

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if name not in py_deps:

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py_deps[name] = []

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if spec not in py_deps[name]:

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py_deps[name].append(spec)

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if not dep.specs:

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py_deps[name] = []

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# Unused, for automatic sub-package generation based on 'extras' from egg/dist metadata

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# TODO: implement in rpm later, or...?

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if Extras:

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deps = dist.requires()

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extras = dist.extras

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print(extras)

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for extra in extras:

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print('%%package\textras-{}'.format(extra))

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print('Summary:\t{} extra for {} python package'.format(extra, dist.key))

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print('Group:\t\tDevelopment/Python')

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depsextras = dist.requires(extras=[extra])

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for dep in reversed(depsextras):

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if dep in deps:

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depsextras.remove(dep)

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deps = depsextras

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for dep in deps:

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for spec in dep.specs:

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if spec[0] == '!=':

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print('Conflicts:\t{} {} {}'.format(dep.key, '==', spec[1]))

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else:

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print('Requires:\t{} {} {}'.format(dep.key, spec[0], spec[1]))

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print('%%description\t{}'.format(extra))

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print('{} extra for {} python package'.format(extra, dist.key))

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print('%%files\t\textras-{}\n'.format(extra))

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if Conflicts:

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# Should we really add conflicts for extras?

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# Creating a meta package per extra with recommends on, which has

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# the requires/conflicts in stead might be a better solution...

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for dep in dist.requires(extras=dist.extras):

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name = dep.key

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for spec in dep.specs:

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if spec[0] == '!=':

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if name not in py_deps:

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py_deps[name] = []

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spec = ('==', spec[1])

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if spec not in py_deps[name]:

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py_deps[name].append(spec)

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names = list(py_deps.keys())

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names.sort()

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for name in names:

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if py_deps[name]:

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# Print out versioned provides, requires, recommends, conflicts

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for spec in py_deps[name]:

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print('{} {} {}'.format(name, spec[0], spec[1]))

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else:

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# Print out unversioned provides, requires, recommends, conflicts

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print(name)

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