Port setup.py and tox to setuptools

Let's use setuptools to build and distribute kdcproxy. This gives us
wheel packages and nicer dependency management. The special case for
setuptools < 18.0 is required for old installations.

Signed-off-by: Christian Heimes <[email protected]>

.gitignore

@@ -5,3 +5,5 @@ __pycache__
 /dist
 /build
 /MANIFEST
+/*.egg-info
+/.cache

MANIFEST.in

@@ -1 +1,5 @@
 include README COPYING
+include tox.ini
+include setup.cfg
+include tests.py tests.krb5.conf
+include .coveragerc

setup.cfg

@@ -0,0 +1,8 @@
+[bdist_wheel]
+universal = 1
+
+[aliases]
+# requires setuptools and wheel package
+# dnf install python3-setuptools python3-wheel
+packages = clean --all egg_info bdist_wheel sdist --format=zip sdist --format=gztar
+release = packages register upload

setup.py

@@ -21,18 +21,40 @@
 
 import os
 import sys
-from distutils.core import setup
 
-dns = "dnspython"
-if sys.version_info.major == 3:
-    dns += "3"
+import setuptools
+from setuptools import setup
+
+
+SETUPTOOLS_VERSION = tuple(int(v) for v in setuptools.__version__.split("."))
+
+install_requires = [
+    'pyasn1',
+]
+
+extras_require = {
+    "tests": ["pytest", "coverage", "WebTest"],
+    "test_pep8": ['flake8', 'flake8-import-order', 'pep8-naming']
+}
+
+if SETUPTOOLS_VERSION >= (18, 0):
+    extras_require.update({
+        ":python_version<'3'": ["dnspython"],
+        ":python_version>='3'": ["dnspython3"],
+    })
+else:
+    if sys.version_info.major == 2:
+        install_requires.append("dnspython")
+    else:
+        install_requires.append("dnspython3")
 
 
 def read(fname):
     fname = os.path.join(os.path.dirname(__file__), fname)
     with open(fname) as f:
         return f.read()
 
+
 setup(
     name="kdcproxy",
     version="0.3.2",
@@ -44,7 +66,8 @@ def read(fname):
     url="http://github.com/npmccallum/kdcproxy",
     packages=['kdcproxy', 'kdcproxy.config'],
     long_description=read('README'),
-    requires=['pyasn1', dns],
+    install_requires=install_requires,
+    extras_require=extras_require,
     classifiers=[
         "Development Status :: 3 - Alpha",
         "Environment :: Web Environment",

tox.ini

@@ -1,44 +1,33 @@
 [tox]
-envlist = py27,py34,pep8,py3pep8,doc
+minversion = 2.3.1
+envlist = py27,py34,py35,py36,pep8,py3pep8,doc
+skip_missing_interpreters = true
 
 [testenv]
 deps =
-    pytest
-    coverage
-    WebTest
-    pyasn1
+   .[tests]
 commands =
-    coverage run -m pytest --capture=no --strict {posargs}
-    coverage report -m
+    {envpython} -m coverage run -m pytest --capture=no --strict {posargs}
+    {envpython} -m coverage report -m
 
 [testenv:py27]
 deps =
-    {[testenv]deps}
-    dnspython
-    mock
-
-[testenv:py34]
-deps =
-    {[testenv]deps}
-    dnspython3
+   .[tests]
+   mock
 
 [testenv:pep8]
 basepython = python2.7
 deps =
-    flake8
-    flake8-import-order
-    pep8-naming
+    .[test_pep8]
 commands =
-    flake8 {posargs}
+    {envpython} -m flake8
 
 [testenv:py3pep8]
-basepython = python3.4
+basepython = python3
 deps =
-    flake8
-    flake8-import-order
-    pep8-naming
+    .[test_pep8]
 commands =
-    flake8 {posargs}
+    {envpython} -m flake8
 
 [testenv:doc]
 deps =