CI: Automatic pepy releases to PyPI (#131)

* workflows/release: Add PyPI release config

* util/release: Don't push to PyPI manually

The CI will handle this for us from now on.

* VERSION: 1.1.0.rc.1

* workflows/release: Try on this branch

* workflows/release: Syntax

* workflows/release: Disable on this branch

* VERSION: 1.1.0.rc.2

.github/workflows/release.yml

@@ -0,0 +1,34 @@
+on:
+  push:
+    tags:
+      - 'v*'
+
+name: release
+
+jobs:
+  pypi:
+    name: upload release to PyPI
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-python@v1
+      with:
+        python-version: 3.8
+    - name: create release
+      id: create_release
+      uses: actions/create-release@v1
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        tag_name: ${{ github.ref }}
+        release_name: Release ${{ github.ref }}
+        draft: false
+        prerelease: ${{ contains(github.ref, 'pre') || contains(github.ref, 'rc') }}
+    - name: sdist
+      run: python3 setup.py sdist
+    - name: publish
+      uses: pypa/gh-action-pypi-publish@master
+      with:
+        user: __token__
+        password: ${{ secrets.PYPI_TOKEN }}
+

VERSION

@@ -1 +1 @@
-1.0.2
+1.1.0.rc.2

util/release

@@ -26,7 +26,7 @@ done
 
 # Next, check the VERSION in version and make sure it doesn't already have a git tag.
 [[ -f ./VERSION ]] || die "Missing VERSION file; wrong directory?"
-version=$(<./VERSION)
+version=v$(<./VERSION)
 [[ -n $(git tag -l "${version}") ]] && die "git tag for ${version} already exists!"
 
 # Next, craft a tag for the current HEAD. Push both the current commit and the tag.
@@ -34,10 +34,4 @@ git tag "${version}"
 git push
 git push origin "${version}"
 
-# Finally, build pepy and publish it to PyPI.
-# Nuke the dist/ directory before, to avoid old sdists.
-rm -rf dist/
-python3 setup.py sdist
-twine upload dist/*
-
 echo OK