We can double-click on this file to open the whole package in Xcode. Package.swift is the entry point of every package, it showcases all there is to know about it: // swift-tools-version:5.1 import PackageDescription While this is all clear to us now, nothing really works until it's declared in the Package.swift manifest file. a hello module target, which we now know is an executable module, as it contains a main.swift file. Lastly, we have the most important file: the Package.swift manifest, we will look at this next.įrom the file structure above we can see that we have two targets:.The README.md is for us to describe the purpose of the package.The compiler distinguishes executable modules from library modules thanks to the presence, or absence, of a main.swift file in the target folder. The Sources folder is where our script code will live, we will have one folder for each module target.The Tests folder is where our tests are, we will have a folder for each test target.This structure is very similar to a library package: When we run $ swift package init -type executable, the basic structure of our package is automatically generated: ├── Package. There are two kinds of targets: those that are compiled into a module, and those that are compiled into a test suite (more on this soon). Package Target(s)Ī Package Target is a basic building block of any Swift Package, you can think of a target as a module or a library, its representation is a folder:Īll files within that folder belongs to that specific target, and every file can access to all other declarations within that folder.Ī Target can depend on other targets, said targets can be within the same package or come from external packages, we will cover both cases in this article. The Package Structureīefore diving into the package structure, it is important to know what a Package Target is. Once the last command completes, a bunch of new files have been created, and our new executable is ready to run! Let's take a look at what we have first. Instead, we're going to use the command line to create an executable, please open your favorite terminal and fire the following commands: $ mkdir hello In fact, everything is so familiar that we're going to build a script with the Swift Package Manager! Creating An ExecutableĬreating a new package in Xcode defaults into library. There are multiple advantages of using Swift: - we know the language - building a script is similar to building an app or a library - everybody in the team can read, understand, and edit what any script does In this article we're going to dive into how we can build our own tools using Swift. FebruFederico Zanetello macOS/iOS developer uses tools such as fastlane and SwiftLint to automate tasks as much as possible:
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