packaging: Move setup.py over to setup.cfg

setup.cfg

@@ -0,0 +1,60 @@
+[metadata]
+name = xworkflows
+version = 1.1.0.dev0
+description = A library implementing workflows (or state machines) for Python projects.
+long_description = file: README.rst
+# https://docutils.sourceforge.io/FAQ.html#what-s-the-official-mime-type-for-restructuredtext-data
+long_description_content_type = text/x-rst
+author = Raphaël Barrois
+author_email = [email protected]
+url = https://github.com/rbarrois/xworkflows
+keywords = workflow, state machine, automaton
+license = BSD
+classifiers =
+    Development Status :: 5 - Production/Stable
+    Intended Audience :: Developers
+    License :: OSI Approved :: BSD License
+    Topic :: Software Development :: Libraries :: Python Modules
+    Operating System :: OS Independent
+    Programming Language :: Python :: 2
+    Programming Language :: Python :: 2.7
+    Programming Language :: Python :: 3
+    Programming Language :: Python :: 3.4
+    Programming Language :: Python :: 3.5
+    Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
+    Programming Language :: Python :: 3.9
+
+[options]
+zip_safe = false
+package_dir =
+    =src
+packages = find:
+python_requires = >=2.7
+install_requires =
+
+[options.packages.find]
+where = src
+
+[options.extras_require]
+dev =
+    # Testing
+    check_manifest
+    flake8
+    tox
+    # Packaging
+    zest.releaser[recommended]
+doc =
+    Sphinx
+    sphinx_rtd_theme
+
+[bdist_wheel]
+universal = 1
+
+[zest.releaser]
+; semver-style versions
+version-levels = 3
+
+[distutils]
+index-servers = pypi

setup.py

@@ -3,75 +3,6 @@
 # Copyright (c) The xworkflows project
 # This code is distributed under the two-clause BSD License.
 
-import codecs
-import os
-import re
-import sys
-
 from setuptools import find_packages, setup
 
-root_dir = os.path.abspath(os.path.dirname(__file__))
-
-
-def get_version():
-    version_re = re.compile(r"^__version__ = [\"']([\w_.-]+)[\"']$")
-    roots = [root_dir, os.path.join(root_dir, 'src')]
-    for root in roots:
-        version_path = os.path.join(root_dir, PACKAGE, 'version.py')
-        if not os.path.exists(version_path):
-            continue
-        with codecs.open(version_path, 'r', 'utf-8') as f:
-            for line in f:
-                match = version_re.match(line[:-1])
-                if match:
-                    return match.groups()[0]
-    return '0.1.0'
-
-
-def clean_readme(fname):
-    """Cleanup README.rst for proper PyPI formatting."""
-    with codecs.open(fname, 'r', 'utf-8') as f:
-        return ''.join(
-            re.sub(r':\w+:`([^`]+?)( <[^<>]+>)?`', r'``\1``', line)
-            for line in f
-            if not (line.startswith('.. currentmodule') or line.startswith('.. toctree'))
-        )
-
-
-PACKAGE = 'xworkflows'
-
-
-setup(
-    name=PACKAGE,
-    version=get_version(),
-    author="Raphaël Barrois",
-    author_email='raphael.barrois_%[email protected]' % PACKAGE,
-    description="A library implementing workflows (or state machines) for Python projects.",
-    long_description=clean_readme('README.rst'),
-    license='BSD',
-    keywords=['workflow', 'state machine', 'automaton'],
-    url='https://github.com/rbarrois/%s' % PACKAGE,
-    install_requires=[
-    ],
-    setup_requires=[
-        'setuptools>=1',
-    ],
-    packages=find_packages('src'),
-    package_dir={'': 'src'},
-    classifiers=[
-        "Development Status :: 5 - Production/Stable",
-        "Intended Audience :: Developers",
-        "License :: OSI Approved :: BSD License",
-        "Topic :: Software Development :: Libraries :: Python Modules",
-        "Operating System :: OS Independent",
-        "Programming Language :: Python :: 2",
-        "Programming Language :: Python :: 2.7",
-        "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.4",
-        "Programming Language :: Python :: 3.5",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
-        "Programming Language :: Python :: 3.8",
-        "Programming Language :: Python :: 3.9",
-    ],
-)
+setup()

src/xworkflows/__init__.py

@@ -4,8 +4,16 @@
 
 from . import base
 
-__version__ = '1.0.4'
 __author__ = 'Raphaël Barrois <[email protected]>'
+try:
+    # Python 3.8+
+    from importlib.metadata import version
+
+    __version__ = version("xworkflows")
+except ImportError:
+    import pkg_resources
+
+    __version__ = pkg_resources.get_distribution("xworkflows").version
 
 # Errors
 AbortTransition = base.AbortTransition