Switch from Travis CI to GitHub Actions

Travis has imposed quotas on builds that require us to contact them to
obtain OSS credits. The CI tool is irrelevant so long as builds do
happen, so switch to GitHub Actions for now. This is a little more
complicated that the switch for related projects like git-pw, given the
need for a database service. We may wish to investigate reusing some of
our own Docker files in the future but for now, this should do the
trick.

Signed-off-by: Stephen Finucane <stephen@that.guru>
(cherry picked from commit 9933a17)

.github/workflows/ci.yaml

@@ -0,0 +1,104 @@
+---
+name: CI
+on:
+  - push
+  - pull_request
+jobs:
+  lint:
+    name: Run linters
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v2
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+      - name: Install dependencies
+        run: python -m pip install tox
+      - name: Run tox
+        run: tox -e pep8
+  test:
+    name: Run unit tests
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python: [3.6, 3.7, 3.8, 3.9]
+        db: [postgres, mysql]
+    services:
+      postgres:
+        image: postgres:latest
+        env:
+          POSTGRES_DB: patchwork
+          POSTGRES_PASSWORD: patchwork
+          POSTGRES_USER: patchwork
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+      mysql:
+        image: mysql:latest
+        env:
+          MYSQL_DATABASE: patchwork
+          MYSQL_USER: patchwork
+          MYSQL_PASSWORD: patchwork
+          MYSQL_ROOT_PASSWORD: root
+        ports:
+          - 3306:3306
+        options: >-
+          --health-cmd="mysqladmin ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python }}
+      - name: Install Python dependencies
+        run: python -m pip install tox tox-gh-actions codecov
+      - name: Log database configuration (mysql)
+        if: ${{ matrix.db == 'mysql' }}
+        run: mysql -h 127.0.0.1 -e "SELECT VERSION(), CURRENT_USER();" -uroot -proot patchwork
+      - name: Log database configuration (postgres)
+        if: ${{ matrix.db == 'postgres' }}
+        run: psql -h 127.0.0.1 -c "SELECT VERSION(), CURRENT_USER, current_database()" -U patchwork -d patchwork
+        env:
+          PGPASSWORD: patchwork
+      - name: Modify database user permissions (mysql)
+        if: ${{ matrix.db == 'mysql' }}
+        run: mysql -h 127.0.0.1 -e "GRANT ALL ON \`test\\_patchwork%\`.* to 'patchwork'@'%';" -uroot -proot
+      - name: Run unit tests (via tox)
+        run: tox
+        env:
+          PW_TEST_DB_TYPE: "${{ matrix.db }}"
+          PW_TEST_DB_USER: "patchwork"
+          PW_TEST_DB_PASS: "patchwork"
+          PW_TEST_DB_HOST: "127.0.0.1"
+  docs:
+    name: Build docs
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout source code
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.9
+      - name: Install dependencies
+        run: python -m pip install tox
+      - name: Build docs (via tox)
+        run: tox -e docs
+      - name: Archive build results
+        uses: actions/upload-artifact@v2
+        with:
+          name: html-docs-build
+          path: docs/_build/html
+          retention-days: 7

README.rst

@@ -10,8 +10,8 @@ Patchwork
    :target: https://codecov.io/gh/getpatchwork/patchwork
    :alt: Codecov
 
-.. image:: https://travis-ci.org/getpatchwork/patchwork.svg?branch=master
-   :target: https://travis-ci.org/getpatchwork/patchwork
+.. image:: https://github.com/getpatchwork/patchwork/actions/workflows/ci.yaml/badge.svg
+   :target: https://github.com/getpatchwork/patchwork/actions/workflows/ci.yaml
    :alt: Build Status
 
 .. image:: https://readthedocs.org/projects/patchwork/badge/?version=latest

tox.ini

@@ -26,7 +26,7 @@ setenv =
 passenv =
     http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
     PW_TEST_DB_TYPE PW_TEST_DB_USER PW_TEST_DB_PASS PW_TEST_DB_HOST
-    PW_TEST_DB_PORT
+    PW_TEST_DB_PORT PW_TEST_DB_NAME DJANGO_TEST_PROCESSES
 commands =
     python {toxinidir}/manage.py test --noinput --parallel -- {posargs:patchwork}
 
@@ -78,6 +78,9 @@ commands =
          --branch {toxinidir}/manage.py test --noinput patchwork
     coverage report -m
 
-[travis]
+[gh-actions]
 python =
-    3.6: py36, pep8, coverage
+    3.6: py36
+    3.7: py37
+    3.8: py38
+    3.9: py39