Upgrade setup.py: move from distutil to setuptools

Move from os.path to pathlib.Path and use setuptools.find_packages(),
remove pytest-runner from the setup (see https://pypi.org/project/pytest-runner/)
remove the bin directory and scripts variable in pkginfo as entrypoint+setuptools
does  the job, remove cmd_class as it's a deprecated distutils features. Remove
dependency links as we do not have any non public dependencies.

1 files changed, 39 insertions, 158 deletions

diff --git a/setup.py b/setup.py
index 74738c915..1867f5990 100644
--- a/setup.py
+++ b/setup.py
@@ -1,166 +1,47 @@
-# Copyright (c) 2006, 2009-2010, 2012-2014 LOGILAB S.A. (Paris, FRANCE) <contact@logilab.fr>
-# Copyright (c) 2012 FELD Boris <lothiraldan@gmail.com>
-# Copyright (c) 2013 Benedikt Morbach <benedikt.morbach@googlemail.com>
-# Copyright (c) 2013 T.Rzepka <Tobias.Rzepka@gmail.com>
-# Copyright (c) 2014-2020 Claudiu Popa <pcmanticore@gmail.com>
-# Copyright (c) 2014 Pedro Algarvio <pedro@algarvio.me>
-# Copyright (c) 2014 Brett Cannon <brett@python.org>
-# Copyright (c) 2014 Google, Inc.
-# Copyright (c) 2014 Ricardo Gemignani <ricardo.gemignani@gmail.com>
-# Copyright (c) 2015 Ionel Cristian Maries <contact@ionelmc.ro>
-# Copyright (c) 2016 Florian Bruhin <me@the-compiler.org>
-# Copyright (c) 2017 Hugo <hugovk@users.noreply.github.com>
-# Copyright (c) 2019-2021 Pierre Sassoulas <pierre.sassoulas@gmail.com>
-# Copyright (c) 2019 Enji Cooper <yaneurabeya@gmail.com>
-# Copyright (c) 2019 Hugo van Kemenade <hugovk@users.noreply.github.com>
-# Copyright (c) 2019 Ashley Whetter <ashley@awhetter.co.uk>
-# Copyright (c) 2020 frostming <frostming@tencent.com>
-# Copyright (c) 2020 Frost Ming <mianghong@gmail.com>
-# Copyright (c) 2020 hippo91 <guillaume.peillex@gmail.com>
-# Copyright (c) 2020 Damien Baty <damien.baty@polyconseil.fr>
-# Copyright (c) 2020 Bryce Guinta <bryce.guinta@protonmail.com>
-# Copyright (c) 2020 Ville Skyttä <ville.skytta@iki.fi>
-# Copyright (c) 2020 Anthony Sottile <asottile@umich.edu>
-# Copyright (c) 2021 Marc Mueller <30130371+cdce8p@users.noreply.github.com>
-
 # Licensed under the GPL: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 # For details: https://github.com/PyCQA/pylint/blob/master/COPYING
 
-"""Generic Setup script, takes package info from __pkginfo__.py file."""
-
-# pylint: disable=import-outside-toplevel,arguments-differ,ungrouped-imports,exec-used
-
-import os
-import sys
-from distutils.command.build_py import build_py
-from os.path import exists, isdir, join
+from pathlib import Path
 from typing import Any, Dict
 
-try:
-    from setuptools import setup
-    from setuptools.command import easy_install as easy_install_lib
-
-    USE_SETUPTOOLS = 1
-except ImportError:
-    from distutils.core import setup
-
-    USE_SETUPTOOLS = 0
-    easy_install_lib = None
-
+import setuptools
 
-__docformat__ = "restructuredtext en"
-base_dir = os.path.dirname(__file__)
+HERE = Path(__file__).parent
 
 __pkginfo__: Dict[str, Any] = {}
-with open(os.path.join(base_dir, "pylint", "__pkginfo__.py")) as pkginfo_fp:
-    exec(pkginfo_fp.read(), __pkginfo__)
-scripts = __pkginfo__.get("scripts", [])
-data_files = __pkginfo__.get("data_files", None)
-ext_modules = __pkginfo__.get("ext_modules", None)
-install_requires = __pkginfo__.get("install_requires", None)
-dependency_links = __pkginfo__.get("dependency_links", [])
-extras_require = __pkginfo__.get("extras_require", {})
-project_urls = __pkginfo__.get("project_urls", {})
-
-readme_path = join(base_dir, "README.rst")
-if exists(readme_path):
-    with open(readme_path, encoding="UTF-8") as stream:
-        long_description = stream.read()
-else:
-    long_description = ""
-
-
-needs_pytest = {"pytest", "test", "ptr"}.intersection(sys.argv)
-pytest_runner = ["pytest-runner"] if needs_pytest else []
-
-
-def ensure_scripts(linux_scripts):
-    """Creates the proper script names required for each platform
-    (taken from 4Suite)
-    """
-    from distutils import util
-
-    if util.get_platform()[:3] == "win":
-        return linux_scripts + [script + ".bat" for script in linux_scripts]
-    return linux_scripts
-
-
-def get_packages(directory, prefix):
-    """return a list of subpackages for the given directory"""
-    result = []
-    for package in os.listdir(directory):
-        absfile = join(directory, package)
-        if isdir(absfile):
-            if exists(join(absfile, "__init__.py")):
-                if prefix:
-                    result.append(f"{prefix}.{package}")
-                else:
-                    result.append(package)
-                result += get_packages(absfile, result[-1])
-    return result
-
-
-def _filter_tests(files):
-    testdir = join("pylint", "test")
-    return [f for f in files if testdir not in f]
-
-
-if easy_install_lib:
-
-    class easy_install(easy_install_lib.easy_install):
-        # override this since pip/easy_install attempt to byte compile
-        # test data files, some of them being syntactically wrong by design,
-        # and this scares the end-user
-        def byte_compile(self, files):
-            files = _filter_tests(files)
-            easy_install_lib.easy_install.byte_compile(self, files)
-
-
-def install(**kwargs):
-    """setup entry point"""
-    if USE_SETUPTOOLS:
-        if "--force-manifest" in sys.argv:
-            sys.argv.remove("--force-manifest")
-    packages = ["pylint"] + get_packages(join(base_dir, "pylint"), "pylint")
-    if USE_SETUPTOOLS:
-        if install_requires:
-            kwargs["install_requires"] = install_requires
-            kwargs["dependency_links"] = dependency_links
-        kwargs["entry_points"] = {
-            "console_scripts": [
-                "pylint = pylint:run_pylint",
-                "epylint = pylint:run_epylint",
-                "pyreverse = pylint:run_pyreverse",
-                "symilar = pylint:run_symilar",
-            ]
-        }
-    kwargs["packages"] = packages
-    cmdclass = {"build_py": build_py}
-    if easy_install_lib:
-        cmdclass["easy_install"] = easy_install
-    return setup(
-        name="pylint",
-        version=__pkginfo__["version"],
-        license=__pkginfo__["license"],
-        description=__pkginfo__["description"],
-        long_description=long_description,
-        author=__pkginfo__["author"],
-        author_email=__pkginfo__["author_email"],
-        url=__pkginfo__["web"],
-        scripts=ensure_scripts(scripts),
-        classifiers=__pkginfo__["classifiers"],
-        data_files=data_files,
-        ext_modules=ext_modules,
-        cmdclass=cmdclass,
-        extras_require=extras_require,
-        test_suite="test",
-        python_requires="~=3.6",
-        setup_requires=pytest_runner,
-        tests_require=["pytest", "pytest-benchmark"],
-        project_urls=project_urls,
-        **kwargs,
-    )
-
-
-if __name__ == "__main__":
-    install()
+with open(HERE / "pylint/__pkginfo__.py", encoding="UTF-8") as f:
+    exec(f.read(), __pkginfo__)  # pylint: disable=exec-used
+with open(HERE / "README.rst", encoding="UTF-8") as f:
+    long_description = f.read()
+
+setuptools.setup(
+    name="pylint",
+    version=__pkginfo__["version"],
+    license=__pkginfo__["license"],
+    description=__pkginfo__["description"],
+    long_description=long_description,
+    author=__pkginfo__["author"],
+    author_email=__pkginfo__["author_email"],
+    url=__pkginfo__["web"],
+    project_urls=__pkginfo__.get("project_urls", {}),
+    classifiers=__pkginfo__["classifiers"],
+    data_files=__pkginfo__.get("data_files", None),
+    ext_modules=__pkginfo__.get("ext_modules", None),
+    python_requires="~=3.6",
+    setup_requires=[],
+    tests_require=["pytest", "pytest-benchmark"],
+    install_requires=__pkginfo__.get("install_requires", None),
+    extras_require={
+        ':sys_platform=="win32"': ["colorama"],
+        "docs": ["sphinx==3.5.1", "python-docs-theme==2020.12"],
+    },
+    entry_points={
+        "console_scripts": [
+            "pylint = pylint:run_pylint",
+            "epylint = pylint:run_epylint",
+            "pyreverse = pylint:run_pyreverse",
+            "symilar = pylint:run_symilar",
+        ]
+    },
+    packages=setuptools.find_packages(),
+)