CI Workflow

[charlieroth]

Overview

Implements a robust CI pipeline with comprehensive quality gates and guardrails for the Capsule project.

What's Changed

• CI Workflow: Created .github/workflows/ci.yml with full quality checks
• Database Testing: Configured PostgreSQL service for tests requiring database access
• Compiler Matrix: Tests against both stable and beta Rust toolchains
• Performance: Added caching for Rust dependencies and SQLx binaries
• Documentation: Added CI status badge to README

CI Pipeline Includes

• ✅ Format Check: cargo fmt --check
• ✅ Linting: cargo clippy with warnings as errors
• ✅ Testing: cargo test with PostgreSQL database
• ✅ SQLx Validation: cargo sqlx prepare --check for compile-time query verification
• ✅ Security Audit: cargo audit for vulnerability scanning
• ✅ License Check: cargo deny check for dependency compliance

Technical Details

• PostgreSQL 16 service with health checks and automatic migration
• Rust cache optimization using Swatinem/rust-cache@v2
• SQLx binary caching to speed up subsequent runs
• Database connection waits for service health before running migrations

Testing

The workflow mirrors the local make check command and handles the database requirement automatically. All existing tests will run in the CI environment with proper PostgreSQL setup.