Scipio

Scipio is a tool that takes existing Swift packages, binary frameworks, or CocoaPods, compiles them into XCFrameworks and delivers them as a single Swift package.

🔨 Scipio is currrently in alpha. Some things may not work right. If you run into problems, please open an issue.

The Problem: Each dependency manager has its own drawbacks and advantages. CocoaPods is incredibly easy to setup, but requires you to compile each dependency from source. This can add a significant amount of time to your builds if you have a lot of dependencies. Carthage solves this problem, but not every library supports it and it adds several steps to your build pipeline.

Scipio aims to solve these problems by leveraging the Swift package manager support built into Xcode 11+ along with SPM’s ability to distribute binary frameworks.

How it works

Scipio takes existing Swift packages, CocoaPods, and pre-built frameworks and generates a Swift package that uses pre-built frameworks stored locally or on a remote server (like S3).

Supported Inputs

• Swift packages
• CocoaPods
• .xcframework via URL packaged as a .zip or .tar.gz

Installation

Homebrew (Recommended)

1. Ensure that you have homebrew installed. Visit brew.sh for more info.
2. Run brew install evandcoleman/tap/scipio

Manually from Source

1. Clone the project and enter the directory

$ git clone https://github.com/evandcoleman/Scipio.git
$ cd Scipio

2. Run make install

Usage

You have a few options for how to integrate Scipio into your project.

• If you want to share dependencies between multiple users of your project(s) across many machines:

  1. Create a new git repository somewhere on your machine.
  2. Add your scipio.yml file (see Configuration section below). Be sure to use a non-local cache engine (such as http).
  3. Run scipio.
  4. Once Scipio completes, you’ll have a new Package.swift file. Push this file to the new repository and create a new release tag.
  5. Integrate the new package into your main project using the git URL for the new repository and specifying your release tag as the version.

• If you want to share dependencies between multiple projects:

  1. Create a new folder somewhere on your machine.
  2. Add your scipio.yml file (see Configuration section below). Be sure to use the local cache engine.
  3. Run scipio.
  4. Once Scipio completes, you’ll have a new Package.swift file.
  5. Integrate the new package into your projects by dragging the containing directory into the Xcode project navigator.

• If your use case doesn’t fall into one of the buckets above, use the basic setup:

  1. Create a new folder inside your project.
  2. Add your scipio.yml file (see Configuration section below). Be sure to use the local cache engine.
  3. Run scipio.
  4. Once Scipio completes, you’ll have a new Package.swift file.
  5. Integrate the new package into your project by dragging the containing directory into the Xcode project navigator.

Configuration

Configuration is managed via a YAML file, scipio.yml. By default, Scipio looks for this file in the current directory, but you can override this behavior by specifying the --config flag followed by a path to a directory containing a scipio.yml file.

It is recommended to create a separate repository to store your Scipio configuration. This is where the generated Package.swift will live.

Top Level Keys

name: The name you want to use for the Swift package that Scipio generates. If you’re using a local cache engine, this should be the name of the enclosing folder.

deploymentTarget: The deployment targets that you’d like to build dependencies for.

cache: The cache engine to use. Currently http (with a url) and local (with a path) are supported.

binaries: An array of binary frameworks to download and include. These must be zip or tar.gz archives that contain either xcframeworks or Universal frameworks.

packages: An array of Swift packages to build and include. See here for supported options.

pods: An array of CocoaPods to build and include. See here for supported options.

Example

name: MyAppCore

deploymentTarget:
  iOS: "12.0"

cache:
  http:
    url: https://<your-bucket-name>.s3.amazonaws.com/

binaries:
  - name: Facebook
    url: https://github.com/facebook/facebook-ios-sdk/releases/download/v9.1.0/FacebookSDK.xcframework.zip
    version: 9.1.0
  - name: Firebase
    url: https://github.com/firebase/firebase-ios-sdk/releases/download/8.6.0/Firebase.zip
    version: 8.6.0

packages:
  - name: SDWebImage
    url: https://github.com/SDWebImage/SDWebImage
    branch: 5.9.2
  - name: SnapKit
    url: https://github.com/SnapKit/SnapKit
    branch: 5.0.0

pods:
  - name: GoogleTagManager
    from: 7.4.0
    # We must exclude these dependencies of GoogleTagManager because they
    # are included in the `Firebase` binary package above.
    # Scipio will error if you omit this.
    excludes:
      - FBLPromises
      - FirebaseAnalytics
      - FirebaseCore
      - FirebaseCoreDiagnostics
      - FirebaseInstallations
      - GoogleAppMeasurement
      - GoogleDataTransport
      - GoogleUtilities
      - nanopb
  - name: IGListKit
    version: 4.0.0

Development

Clone the project and open Package.swift in Xcode

$ git clone https://github.com/evandcoleman/Scipio.git
$ cd Scipio && open Package.swift

License

Scipio is released under the MIT License.