Continuous release via CI

MANIFEST.in

@@ -0,0 +1,5 @@
+exclude .*
+exclude Dockerfile
+exclude tox.ini
+prune .circleci
+prune tests

setup.py

@@ -1,5 +1,25 @@
+import os
+
 from setuptools import find_packages, setup
 
+
+def prerelease_local_scheme(version):
+    """
+    Return local scheme version unless building on master in CircleCI.
+
+    This function returns the local scheme version number
+    (e.g. 0.0.0.dev<N>+g<HASH>) unless building on CircleCI for a
+    pre-release in which case it ignores the hash and produces a
+    PEP440 compliant pre-release version number (e.g. 0.0.0.dev<N>).
+    """
+    from setuptools_scm.version import get_local_node_and_date
+
+    if os.getenv('CIRCLE_BRANCH') == 'master':
+        return ''
+    else:
+        return get_local_node_and_date(version)
+
+
 setup(
     name='isic_challenge_scoring',
     version='0.1',
@@ -9,4 +29,6 @@
     packages=find_packages(exclude=['tests']),
     python_requires='>=3.7.0',
     install_requires=['click', 'numpy', 'pandas', 'pillow', 'scipy', 'scikit-learn'],
+    use_scm_version={'local_scheme': prerelease_local_scheme},
+    setup_requires=['setuptools_scm'],
 )

tox.ini

@@ -34,6 +34,23 @@ commands =
 [pytest]
 addopts = --showlocals
 
+[testenv:release]
+basepython = python3
+skipsdist = true
+skip_install = true
+passenv =
+    CIRCLE_BRANCH
+    TWINE_USERNAME
+    TWINE_PASSWORD
+deps =
+    setuptools-git
+    setuptools-scm
+    twine
+commands =
+    python setup.py sdist
+    twine check dist/*
+    twine upload --skip-existing dist/*
+
 [flake8]
 max-line-length = 100
 show-source = True