AECli

Swift package for making simple command line tools

I made this for personal use, but feel free to use it or contribute.

There is a Command which can run some arguments in Cli which has its Output and contains any defined commands. For the example of a more custom implementation, see AETool.

• Create executable Swift package and open it with Xcode

  mkdir My && cd My && swift package init --type executable && xed .

• Edit Package.swift

  // swift-tools-version:5.1
  
  import PackageDescription
  
  let package = Package(
      name: "My",
      products: [
          .executable(name: "my", targets: ["My"])
      ],
      dependencies: [
          .package(url: "https://github.com/tadija/AECli.git", from: "0.1.0")
      ],
      targets: [
          .target(name: "My", dependencies: ["AECli"]),
      ]
  )

• Edit Sources/My/main.swift

  import AECli
  
  // MARK: - Commands
  
  struct Thing: Command {
      var overview: String {
          "does something"
      }
      
      var commands: [Command] {
          [Foo(), Bar()]
      }
  }
  
  struct Foo: Command {
      var overview: String {
          "foo something"
      }
  
      func run(_ arguments: [String] = [], in cli: Cli) throws {
          cli.output("foo")
      }
  }
  
  struct Bar: Command {
      var overview: String {
          "bar something"
      }
  
      func run(_ arguments: [String] = [], in cli: Cli) throws {
          cli.output("bar")
      }
  }
  
  // MARK: - Cli
  
  SimpleCli(
      overview: "my cli",
      commands: [Thing()],
      help: "USAGE: command [options]"
  ).launch()

• Install

  swift build -c release && install .build/release/my /usr/local/bin/my

• Uninstall

  rm /usr/local/bin/my

• Run my

  my
  

  describes cli with all available commands

  my cli
  
  • thing > does something
  
  USAGE: command [options]

• Run thing command

  my thing

  describes command with all its subcommands

  does something
  
  • foo > foo something
  • bar > bar something

• Run foo command

  my thing foo

  runs foo comand

  foo

• Swift Package Manager:

  .package(
      url: "https://github.com/tadija/AECli.git", from: "0.1.0"
  )

This code is released under the MIT license. See LICENSE for details.