Move metadata from setup.py to setup.cfg

A declarative file is nicer.

Author: bluetech

pyproject.toml

@@ -5,6 +5,9 @@ requires = [
   "wheel",
 ]
 
+[tool.setuptools_scm]
+write_to = "src/pluggy/_version.py"
+
 [tool.towncrier]
 package = "pluggy"
 package_dir = "src/pluggy"

setup.cfg

@@ -2,7 +2,50 @@
 universal=1
 
 [metadata]
-license_file=LICENSE
+name = pluggy
+description = plugin and hook calling mechanisms for python
+long_description = file: README.rst
+long_description_content_type = text/x-rst
+license = MIT
+platforms = unix, linux, osx, win32
+author = Holger Krekel
+author_email = [email protected]
+url = https://github.com/pytest-dev/pluggy
+classifiers =
+    Development Status :: 4 - Beta
+    Intended Audience :: Developers
+    License :: OSI Approved :: MIT License
+    Operating System :: POSIX
+    Operating System :: Microsoft :: Windows
+    Operating System :: MacOS :: MacOS X
+    Topic :: Software Development :: Testing
+    Topic :: Software Development :: Libraries
+    Topic :: Utilities
+    Programming Language :: Python :: Implementation :: CPython
+    Programming Language :: Python :: Implementation :: PyPy
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3 :: Only
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+
+[options]
+packages =
+    pluggy
+install_requires =
+    importlib-metadata>=0.12;python_version<"3.8"
+python_requires = >=3.6
+package_dir =
+    =src
+setup_requires =
+    setuptools-scm
+[options.extras_require]
+dev =
+    pre-commit
+    tox
+testing =
+    pytest
 
 [devpi:upload]
 formats=sdist.tgz,bdist_wheel

setup.py

@@ -1,52 +1,5 @@
 from setuptools import setup
 
-classifiers = [
-    "Development Status :: 4 - Beta",
-    "Intended Audience :: Developers",
-    "License :: OSI Approved :: MIT License",
-    "Operating System :: POSIX",
-    "Operating System :: Microsoft :: Windows",
-    "Operating System :: MacOS :: MacOS X",
-    "Topic :: Software Development :: Testing",
-    "Topic :: Software Development :: Libraries",
-    "Topic :: Utilities",
-    "Programming Language :: Python :: Implementation :: CPython",
-    "Programming Language :: Python :: Implementation :: PyPy",
-    "Programming Language :: Python :: 3 :: Only",
-] + [("Programming Language :: Python :: %s" % x) for x in "3 3.6 3.7 3.8 3.9".split()]
-
-with open("README.rst", "rb") as fd:
-    long_description = fd.read().decode("utf-8")
-
-with open("CHANGELOG.rst", "rb") as fd:
-    long_description += "\n\n" + fd.read().decode("utf-8")
-
-EXTRAS_REQUIRE = {
-    "dev": ["pre-commit", "tox"],
-    "testing": ["pytest"],
-}
-
-
-def main():
-    setup(
-        name="pluggy",
-        description="plugin and hook calling mechanisms for python",
-        long_description=long_description,
-        use_scm_version={"write_to": "src/pluggy/_version.py"},
-        setup_requires=["setuptools-scm"],
-        license="MIT license",
-        platforms=["unix", "linux", "osx", "win32"],
-        author="Holger Krekel",
-        author_email="[email protected]",
-        url="https://github.com/pytest-dev/pluggy",
-        python_requires=">=3.6",
-        install_requires=['importlib-metadata>=0.12;python_version<"3.8"'],
-        extras_require=EXTRAS_REQUIRE,
-        classifiers=classifiers,
-        packages=["pluggy"],
-        package_dir={"": "src"},
-    )
-
 
 if __name__ == "__main__":
-    main()
+    setup()