ENH: set up documentation for mcutils

setup.py

 import setuptools
+import os.path as op
+import shutil
+
+
+basedir = op.dirname(__file__)
+
+
+class doc(setuptools.Command):
+    """Build the API documentation. """
+
+    user_options = []
+
+    def initialize_options(self):
+        pass
+
+    def finalize_options(self):
+        pass
+
+    def run(self):
+        import sphinx.cmd.build as sphinx_build
+
+        docdir  = op.join(basedir, 'doc')
+        destdir = op.join(docdir, 'html')
+
+        if op.exists(destdir):
+            shutil.rmtree(destdir)
+
+        print('Building documentation [{}]'.format(destdir))
+
+        sphinx_build.main([docdir, destdir])
+
 
 setuptools.setup(
     name="mcutils",
@@ -24,6 +55,8 @@ setuptools.setup(
         'mc_script=mcutils.scripts.__main__:main',
     ]},
 
+    cmdclass={'doc': doc},
+
     classifiers=[
         'Development Status :: 2 - Pre-Alpha',
         'Programming Language :: Python',