Switch to automatic versioning. (#26)

* Switch to automated versioning.
* Install new build dependencies.
* Fixes #25

.github/workflows/pythonpublish.yml

@@ -18,10 +18,10 @@ jobs:
       uses: actions/setup-python@v1
       with:
         python-version: '3.x'
-    - name: Install dependencies
+    - name: Install build dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install setuptools wheel twine
+        pip install setuptools setuptools_scm toml wheel twine
     - name: Build and publish
       env:
         TWINE_USERNAME: ${{ secrets.PYPI_USERNAME }}

.gitignore

@@ -127,3 +127,4 @@ dmypy.json
 
 # Pyre type checker
 .pyre/
+histoprint/version.py

histoprint/__init__.py

@@ -1,3 +1,4 @@
 """histoprint - Pretty-print histograms to the terminal"""
 
+from .version import version as __version__
 from histoprint.formatter import *

pyproject.toml

@@ -0,0 +1,11 @@
+[build-system]
+requires = [
+    "setuptools>=42",
+    "setuptools_scm[toml]>=3.4",
+    "wheel"
+]
+
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools_scm]
+write_to = "histoprint/version.py"

setup.py

@@ -1,4 +1,6 @@
 from setuptools import setup
+import setuptools_scm  # noqa: F401
+import toml  # noqa: F401
 
 # make open consistent between py2 and py3 as we need encoding param
 from io import open
@@ -20,7 +22,6 @@
 
 setup(
     name="histoprint",
-    version="1.5.1",
     description=description,
     long_description=long_description,
     url="https://github.com/scikit-hep/histoprint",