Remove TravisCI, add GitHub Actions

.github/workflows/publish.yml

@@ -1,14 +0,0 @@
-name: Publish
-on: 
-  push:
-    branches:
-      - releases/*
-
-jobs:
-  publish:
-    name: Publish to Docker Hub
-    runs-on: ubuntu-18.04
-    steps:
-      - uses: actions/checkout@v1
-      - run: echo $GITHUB_REF
-      #- run: make publish VERSION=$GITHUB_REF DOCKER_USER=${{ secrets.DOCKER_USER }} DOCKER_PASSWORD=${{ secrets.DOCKER_PASSWORD }}

.github/workflows/push.yml

@@ -1,12 +0,0 @@
-name: Push
-on: push
-
-jobs:
-  tests:
-    name: Lint, tests and code coverage
-    runs-on: ubuntu-18.04
-    steps:
-      - uses: actions/checkout@v1
-      #- run: make lint
-      #- run: make tests CODE_COVERAGE=1
-      #- run: bash <(curl -s https://codecov.io/bash) -t ${{ secrets.CODECOV_TOKEN }}

.github/workflows/tests_maybe_release.yml

@@ -0,0 +1,26 @@
+name: tests_maybe_release
+
+on:
+  push:
+  pull_request:
+  release:
+    types: [published]
+
+jobs:
+  tests_maybe_release:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - uses: actions/checkout@v1
+      - name: Lint code
+        run: make lint
+      - name: Run tests
+        run: |
+          make tests CODE_COVERAGE=1
+          bash <(curl -s https://codecov.io/bash)
+      - name: Release
+        if: ${{ github.event_name == 'release' }}
+        run: make publish VERSION=${{ github.event.release.tag_name }} DOCKER_USER=${{ secrets.DOCKER_USER }} DOCKER_PASSWORD=${{ secrets.DOCKER_PASSWORD }}