Port CI to GitHub Actions and remove CircleCI

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    services:
+      postgres:
+        image: postgres
+        env:
+          POSTGRES_USER: postgres
+          POSTGRES_DB: test_db
+          POSTGRES_HOST_AUTH_METHOD: trust
+        ports:
+          - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: pip
+      - name: Install dependencies
+        run: |
+          pip install -r requirements.txt
+      - name: Set up database
+        run: |
+          sudo apt-get install -y postgresql-client
+          export DATABASE_URL=postgres://postgres:@localhost/test_db
+          python manage.py migrate --noinput
+          python manage.py collectstatic --noinput
+      - name: Run tests
+        run: |
+          export DATABASE_URL=postgres://postgres:@localhost/test_db
+          python manage.py test

README.md

@@ -1,6 +1,6 @@
 # simonwillisonblog
 
-[![CircleCI](https://circleci.com/gh/simonw/simonwillisonblog.svg?style=svg)](https://circleci.com/gh/simonw/simonwillisonblog)
 [![Dependabot Status](https://api.dependabot.com/badges/status?host=github&repo=simonw/simonwillisonblog)](https://dependabot.com)
+[![GitHub Actions](https://github.com/simonw/simonwillisonblog/actions/workflows/ci.yml/badge.svg)](https://github.com/simonw/simonwillisonblog/actions)
 
 The code that runs my weblog, http://simonwillison.net/