ci: remove .travis.yml, deploy with twine from a GHA workflow

.github/workflows/push.yml

@@ -112,3 +112,27 @@ jobs:
       run: |
         export PATH=$PATH:$(pwd)/../ghdl-v0.36/bin
         tox -e py${{ matrix.task }} -- --color=yes
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: [ fmt, lin, docker, win ]
+    if: github.event_name == 'release' && github.event.action == 'created'
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        submodules: recursive
+    - uses: actions/setup-python@v1
+      with:
+        python-version: 3.8
+    - name: install dependencies
+      run: |
+        pip install -U pip
+        pip install -U setuptools wheel twine
+    - name: build and deploy to PyPI
+      env:
+        TWINE_USERNAME: __token__
+        TWINE_PASSWORD: ${{ secrets.VUNIT_HDL_PYPI_DEPLOY_TOKEN }}
+      run: |
+        ./tools/release.py validate
+        python setup.py sdist
+        twine upload dist/*

tools/release.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 # This Source Code Form is subject to the terms of the Mozilla Public
 # License, v. 2.0. If a copy of the MPL was not distributed with this file,
 # You can obtain one at http://mozilla.org/MPL/2.0/.