Add documentation and CI/CD files

.github/workflows/ci.yml

@@ -0,0 +1,81 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.7, 3.8, 3.9, '3.10', '3.11']
+
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v4
+      with:
+        python-version: ${{ matrix.python-version }}
+    
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install -r requirements-dev.txt
+    
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
+    
+    - name: Check formatting with black
+      run: |
+        black --check .
+    
+    - name: Check imports with isort
+      run: |
+        isort --check-only --profile black .
+    
+    - name: Type check with mypy
+      run: |
+        mypy github_sponsors_bot.py
+    
+    - name: Test with pytest
+      run: |
+        pytest --cov=github_sponsors_bot --cov-report=xml
+      env:
+        GITHUB_WEBHOOK_SECRET: test_webhook_secret
+        TELEGRAM_TOKEN: test_telegram_token
+        TELEGRAM_CHAT_ID: 123456789
+    
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v3
+      with:
+        file: ./coverage.xml
+        fail_ci_if_error: false
+
+  docker:
+    runs-on: ubuntu-latest
+    needs: test
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    
+    steps:
+    - uses: actions/checkout@v3
+    
+    - name: Set up Docker Buildx
+      uses: docker/setup-buildx-action@v2
+    
+    - name: Build Docker image
+      uses: docker/build-push-action@v4
+      with:
+        context: .
+        push: false
+        tags: github-sponsors-bot:latest
+        cache-from: type=gha
+        cache-to: type=gha,mode=max