use setuptool_scm plugin to main version

Get the version from the git tag and the last commit sha.

.gitignore

@@ -62,3 +62,6 @@ target/
 
 #Ipython Notebook
 .ipynb_checkpoints
+
+# maintain by setuptools-scm
+virt_lightning/version.py

setup.py

@@ -45,16 +45,21 @@ def _get_readme():
     author_email="goneri@lebouder.net",
     description="Deploy your testing VM in a couple of sections",
     long_description=_get_readme(),
+    long_description_content_type="text/markdown",
     install_requires=_get_requirements(),
     url="https://github.com/virt-lightning/virt-lightning",
+    use_scm_version={"write_to": "virt_lightning/version.py"},
     license="Apache v2.0",
+    platforms=["linux"],
     classifiers=[
         "Environment :: Console",
         "Intended Audience :: Developers",
         "Intended Audience :: Information Technology",
         "License :: OSI Approved :: Apache Software License",
         "Operating System :: POSIX :: Linux",
+        "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
         "Topic :: System :: Distributed Computing",
     ],
     entry_points={
@@ -63,4 +68,5 @@ def _get_readme():
             "vl = virt_lightning.shell:main",
         ]
     },
+    setup_requires=["setuptools_scm"],
 )

tox.ini

@@ -26,11 +26,11 @@ deps = flake8
        flake8-type-annotations
        flake8-broken-line
 #       flake8-print
-commands = flake8 setup.py virt_lightning
+commands = flake8 --exclude=version.py setup.py virt_lightning
 
 [testenv:black]
 commands =
-    black --diff  --check setup.py virt_lightning
+    black --diff  --check --exclude=version.py setup.py virt_lightning
 
 [isort]
 line_length=90

virt_lightning/__init__.py

@@ -0,0 +1,4 @@
+try:
+    from .version import __version__
+except ImportError:
+    __version__ = None