swift-tooling

name	swift-tooling
description	Standards for SPM, Build Configs, and Code Quality. Use when managing Swift packages with SPM, configuring build settings, or enforcing Swift code quality. (triggers: Package.swift, .swiftlint.yml, package, target, dependency)

Swift Tooling Standards

Priority: P0

Implementation Guidelines

Swift Package Manager (SPM)

• Package.swift: Define clear targets, products, and dependencies.
• Modularization: Break large projects into local packages for faster builds.
• Versioning: Use semantic versioning (Major.Minor.Patch) for shared packages.

Code Quality

• SwiftLint: Use for consistent style enforcement. Create a .swiftlint.yml in the project root with disabled_rules and opt_in_rules sections.
• Compiler Warnings: Treat warnings as errors in CI to maintain code health.
• Documentation: Use triple slashes /// for documentation comments on public APIs (DocC-compatible).

Build Configurations

• Xcconfig: Use external configuration files to manage build settings.
• Environment Flags: Use #if DEBUG for development-only code, closed with #endif.
• Schemes: Maintain separate schemes for Development, Staging, and Production.

Anti-Patterns

• No API keys in code: Use environment variables or build configs.
• No // swiftlint:disable: Fix the underlying issue.
• No manually added frameworks: Use SPM.

References

• SPM Setup & Build Configs