feat(ci): Add GitHub Actions lint workflow - CGAI-23

.github/workflows/lint.yml

@@ -0,0 +1,56 @@
+name: Lint & Format Check
+
+on:
+  push:
+    branches: [main, develop, "feature/**"]
+    paths:
+      - "backend/**/*.py"
+      - ".github/workflows/lint.yml"
+  pull_request:
+    branches: [main, develop]
+    paths:
+      - "backend/**/*.py"
+
+jobs:
+  lint:
+    name: Code Quality Check
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+          cache: "pip"
+
+      - name: Install linting dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install black>=23.0.0 flake8>=7.0.0 isort>=5.13.0
+
+      - name: Format code with Black
+        run: |
+          cd backend
+          black src/ --line-length=100
+
+      - name: Sort imports with isort
+        run: |
+          cd backend
+          isort src/ --profile=black --line-length=100
+
+      - name: Lint with Flake8
+        run: |
+          cd backend
+          flake8 src/ --count --select=E9,F63,F7,F82 --show-source --statistics
+          flake8 src/ --count --max-complexity=10 --max-line-length=100 --statistics
+
+      - name: Summary
+        if: success()
+        run: |
+          echo "= All code quality checks passed!"
+          echo "- Black formatting: ✓"
+          echo "- Import sorting (isort): ✓"
+          echo "- Linting (flake8): ✓"

backend/pyproject.toml

@@ -4,11 +4,18 @@ target-version = ['py311']
 include = '\.pyi?$'
 extend-exclude = '''
 /(
-  \.eggs
+    # directories
+    \.eggs
   | \.git
+  | \.hg
+  | \.mypy_cache
+  | \.tox
   | \.venv
+  | _build
+  | buck-out
   | build
   | dist
+  | alembic/versions
 )/
 '''
 
@@ -17,16 +24,15 @@ profile = "black"
 line_length = 100
 multi_line_output = 3
 include_trailing_comma = true
+force_grid_wrap = 0
+use_parentheses = true
+ensure_newline_before_comments = true
+skip_gitignore = true
+skip = ["alembic/versions"]
 
-[tool.mypy]
-python_version = "3.11"
-warn_return_any = true
-warn_unused_configs = true
-disallow_untyped_defs = true
-plugins = ["pydantic.mypy"]
-
-[tool.pylint.messages_control]
-disable = "C0330, C0326"
-
-[tool.pylint.format]
-max-line-length = "100"
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = "test_*.py"
+python_classes = "Test*"
+python_functions = "test_*"
+addopts = "-v --cov=src --cov-report=html --cov-report=term-missing --cov-fail-under=75"

backend/src/main.py

@@ -2,6 +2,7 @@
 CodeGuard AI - Backend Entry Point
 FastAPI Application
 """
+
 from fastapi import FastAPI
 from fastapi.middleware.cors import CORSMiddleware
 
@@ -11,7 +12,7 @@
     description="Multi-Agent Code Review System",
     version="1.0.0",
     docs_url="/docs",
-    redoc_url="/redoc"
+    redoc_url="/redoc",
 )
 
 # CORS
@@ -23,20 +24,18 @@
     allow_headers=["*"],
 )
 
+
 @app.get("/health")
 async def health_check():
     """Health check endpoint"""
-    return {
-        "status": "healthy",
-        "version": "1.0.0",
-        "service": "CodeGuard AI Backend"
-    }
+    return {"status": "healthy", "version": "1.0.0", "service": "CodeGuard AI Backend"}
+
 
 @app.get("/")
 async def root():
     """Root endpoint"""
     return {
         "message": "CodeGuard AI - Multi-Agent Code Review System",
         "docs": "/docs",
-        "health": "/health"
-    }
+        "health": "/health",
+    }