# GitHub CI Workflow Improvements

## Summary

Fixed both GitHub CI workflows (`.github/workflows/ci.yml` and `.github/workflows/ci-full.yml`) to use modern best practices and resolve several issues.

## Issues Fixed

### ci.yml (Basic CI)

**Before:**
- Used `uv pip install --system` which is not recommended in CI environments
- Ran tools directly instead of through `uv run`
- Used `pip install uv` instead of the official action
- Inconsistent Python version handling between jobs
- Missing error handling for coverage uploads

**After:**
- ✅ Uses `astral-sh/setup-uv@v4` official action with caching
- ✅ Creates proper virtual environments with `uv venv`
- ✅ All tools run through `uv run` for consistency
- ✅ Proper error handling with `fail_ci_if_error: false`
- ✅ Optimized artifact uploads (only for Python 3.11)
- ✅ Better output formatting with `--output-format=github` for Ruff

### ci-full.yml (Full CI with External Dependencies)

**Before:**
- Workflow was disabled (manual trigger only)
- Overcomplicated uv usage with unnecessary `uv pip compile` steps
- Hardcoded Python versions ("3.11.8")
- Redundant dependency installation steps

**After:**
- ✅ Enabled for automatic triggering on pushes and PRs
- ✅ Simplified uv usage - direct installation from requirements files
- ✅ Uses environment variables for Python version consistency
- ✅ Improved error handling for missing files
- ✅ Better structured with proper caching

## Key Improvements

### 1. Modern uv Usage
```yaml
# Before
- name: Install uv
  run: pip install uv
- name: Install dependencies
  run: |
    uv pip install --system -r requirements.txt

# After
- name: Install uv
  uses: astral-sh/setup-uv@v4
  with:
    version: "latest"
    enable-cache: true
- name: Create virtual environment and install dependencies
  run: |
    uv venv
    uv pip install -r requirements.txt
```

### 2. Consistent Tool Execution
```yaml
# Before
run: ruff check .

# After
run: uv run ruff check . --output-format=github
```

### 3. Environment Variables
```yaml
env:
  PYTHON_VERSION: "3.11"
  FORCE_COLOR: 1
```

### 4. Better Error Handling
```yaml
- name: Upload coverage to Codecov
  uses: codecov/codecov-action@v4
  if: matrix.python-version == env.PYTHON_VERSION
  with:
    fail_ci_if_error: false
```

## Workflow Structure

### ci.yml (Basic)
- **lint**: Code quality checks (Ruff, Black, MyPy)
- **test**: Unit tests with PostgreSQL/Redis services
- **security**: Security scans (Bandit, Trivy)
- **docker**: Container builds on develop branch

### ci-full.yml (Comprehensive)
- **test**: Full test suite with matrix strategy
- **integration-tests**: E2E and integration testing
- **security**: Enhanced security scanning with secrets detection
- **deployment-prep**: Validates deployment readiness
- **pr-checks**: Enforces PR title and branch naming conventions
- **success**: Final status check for all jobs

## Benefits

1. **Reliability**: Proper virtual environment isolation
2. **Performance**: Caching enabled for uv and dependencies
3. **Consistency**: All tools run through `uv run`
4. **Maintainability**: Environment variables for version management
5. **Visibility**: Better error reporting and GitHub integration
6. **Security**: Enhanced security scanning and secrets detection

## Recommendations

### 1. Required Secrets
Ensure these secrets are configured in your repository:
- `CODECOV_TOKEN`: For coverage reporting

### 2. Branch Protection
Configure branch protection rules to require:
- Status checks from both workflows
- PR reviews before merging
- Up-to-date branches

### 3. Additional Enhancements
Consider adding:
- Dependabot for dependency updates
- CodeQL analysis for security
- Performance regression testing
- Deployment automation for staging/production

### 4. Local Development
Ensure developers use the same tools locally:
```bash
# Install uv
curl -LsSf https://astral.sh/uv/install.sh | sh

# Create environment and install dependencies
uv venv
uv pip install -r requirements.txt -r requirements-dev.txt

# Run quality checks
uv run ruff check .
uv run black --check .
uv run mypy .
uv run pytest
```

## Files Modified

- `.github/workflows/ci.yml` - Basic CI workflow
- `.github/workflows/ci-full.yml` - Full CI workflow with external dependencies

## Next Steps

1. Test the workflows with a sample PR
2. Verify all required secrets are configured
3. Update documentation to reflect new CI requirements
4. Consider enabling automated deployments for successful builds