Swift 调用系统命令

Swift 调用系统命令, https://github.com/QiuZhiFei/swift-commands 。

Commands模块，使用系统命令字符串，并返回标准输出。

API documentation can be found here.

Usage

import Commands 

Bash

Execute shell commands.

let result = Commands.Task.run("bash -c ls") 

Or

let result = Commands.Bash.run("ls") 

Python

Execute python scripts.

let result = Commands.Task.run("python main.py") 

Execute python commands.

let result = Commands.Task.run("python -c import base64; print(base64.b64encode('qiuzhifei').decode('ascii'))") 

Or

let result = Commands.Python.run("import base64; print(base64.b64encode('qiuzhifei').decode('ascii'))") 

Ruby

Execute ruby scripts.

let result = Commands.Task.run("ruby main.rb") 

Execute ruby commands.

let result = Commands.Task.run("ruby -e require 'base64'; puts Base64.encode64('qiuzhifei')") 

Or

let result = Commands.Ruby.run("require 'base64'; puts Base64.encode64('qiuzhifei')") 

Alias

Create a shortcut name for a command.

let node = Commands.Alias("/usr/local/bin/node", dashc: "-e") let result = node.run("console.log('qiuzhifei')") 

Setting global environment variables

Commands.ENV.global["http_proxy"] = "http://127.0.0.1:7890" 

Commands.ENV.global.add(PATH: "/Users/zhifeiqiu/.rvm/bin") 

Making Commands

let request: Commands.Request = "ruby -v" let result = Commands.Task.run(request) 

Or

let request = Commands.Request(executableURL: "ruby", arguments: "-v") let result = Commands.Task.run(request) 

Change environment variables

var request: Commands.Request = "ruby -v" request.environment?.add(PATH: "/usr/local/bin") request.environment?["http_proxy"] = "http://127.0.0.1:7890" request.environment?["https_proxy"] = "http://127.0.0.1:7890" request.environment?["all_proxy"] = "socks5://127.0.0.1:7890" let result = Commands.Task.run(request) 

Result Handler

Returns the Commands.Result of running cmd in a subprocess.

let result = Commands.Task.run("ruby -v") switch result { case .Success(let request, let response): debugPrint("command: \(request.absoluteCommand), success output: \(response.output)") case .Failure(let request, let response): debugPrint("command: \(request.absoluteCommand), failure output: \(response.errorOutput)") } 

Adding Commands as a Dependency

To use the Commands library in a SwiftPM project, add the following line to the dependencies in your Package.swift file:

let package = Package( // name, platforms, products, etc. dependencies: [ .package(url: "https://github.com/qiuzhifei/swift-commands", from: "0.5.0"), // other dependencies ], targets: [ .target(name: "<command-line-tool>", dependencies: [ .product(name: "Commands", package: "swift-commands"), ]), // other targets ] ) 

CocoaPods (OS X 10.9+)

You can use CocoaPods to install Commands by adding it to your Podfile:

pod 'Commands', '~> 0.5.0' 

QuickStart

git clone https://github.com/QiuZhiFei/swift-commands cd swift-commands && open Package.swift 

References

• https://github.com/apple/swift-argument-parser