swiftlang/swift-package-manager
Swift Package Manager
Swift Package Manager is a build tool, dependency manager, and registry client for the Swift language. It transforms source files and external dependencies into executable binaries or libraries and manages the resolution, download, and integration of external code libraries.
The project provides a client for publishing and versioning signed code packages via a remote registry, ensuring identity verification through digital signing. It also includes a source code formatter to standardize code style and indentation.
The system covers a broad range of capabilities including modular code distribution, cross-platform SDK management, and project compilation. It manages build automation through target-level configurations and maintains a stable environment by resolving package dependencies and preventing circular references. Security is handled through checksum-based integrity verification for remote SDK bundles.
Features
- Source Code Compilers - Transforms Swift source files and dependencies into executable binaries or libraries.
- Swift Build Systems - A system for transforming Swift source files and dependencies into executable binaries or libraries.
- Swift Dependency Managers - Acts as the primary tool for resolving and integrating external Swift libraries to ensure reproducible builds.
- Package Dependency Managers - Calculates a compatible set of versions for required libraries to ensure stable and reproducible builds.
- Package Distribution - Shares and versions code modules so other developers can integrate them into their own projects.
- Package Registries - Provides a client for distributing versioned code modules via a centralized registry with identity verification.
- Source Code Distribution - Implements a system for sharing and distributing reusable source code packages through a versioned registry.
- Dependency Management - Resolves and integrates external code libraries into a project to enable modular development.
- Library Version Resolution - Calculates a compatible set of library versions by analyzing requirement constraints in configuration files.
- Swift Projects - Serves as the official tool for resolving, downloading, and integrating external Swift code libraries.
- Build Artifact Caching - Stores downloaded binary dependencies and repository checkouts locally to avoid redundant network requests.
- Compilation Setting Configuration - Allows setting memory safety levels and language modes to control how code is compiled.
- Target-Specific Build Settings - Controls compilation settings like memory safety and language modes by mapping rules to individual build targets.
- Package Publishing - Provides utilities to upload and distribute signed Swift packages to registries for version management.
- Local Dependency Caching - Stores downloaded binaries and repository checkouts in a local directory to eliminate redundant network requests.
- Package Registry Clients - Implements a client for publishing and downloading signed Swift packages from a remote registry.
- SDK Integrations - Validates checksums for remote SDK bundles to ensure the downloaded archive matches the publisher version.
- Cross-Compilation SDK Management - Installs and configures SDK bundles to enable building and loading macros for different host architectures.
- Internal Symbol Visibility - Uses package-level access modifiers to share symbols between targets without exposing them to the public.
- Package Signing - Uploads packages to a registry using a publishing specification and verifies identity via digital signing.
- Dependency Cycle Detection - Analyzes the dependency tree to ensure no circular references exist at the target level.
- Circular Dependency Resolution - Prevents build failures by managing and resolving dependencies that refer back to one another.
- Binary Integrity Verifications - Validates the authenticity and integrity of downloaded SDK bundles using checksums.
- Build And Automation - Official tool for managing source code distribution and dependencies.
Star history
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