swift - 终端命令不适用于 Swift

Question

我正在使用此代码来运行终端命令。到目前为止，这一直有效。现在它提示:

The file /Users/meee/Library/Developer/Xcode/DerivedData/nameOfXCodeProject-baelzqzfuiydshbtbifxkywekybq/Build/Products/Debug/Chrome.app does not exist.

当我尝试运行带有参数的命令时，它失败了。它在终端中就像一个魅力。可能是什么问题？

let strEx = "open -a /Applications/Google Chrome.app   --args argsToSet=\"MYARGS\""
strEx.runAsCommand()

extension String {
    func runAsCommand() -> String {
        let pipe = NSPipe()
        let task = NSTask()
        task.launchPath = "/bin/sh"
        task.arguments = ["-c", String(format:"%@", self)]
        task.standardOutput = pipe
        let file = pipe.fileHandleForReading
        task.launch()
        if let result = NSString(data: file.readDataToEndOfFile(), encoding: NSUTF8StringEncoding) {
            return result as String
        }
        else {return "--- Unable to initialize string from file data ---"}
    }
}

编辑:这就是我现在使用的。

let pipe = NSPipe()
        let task = NSTask()
        task.launchPath = "/bin/sh"
        task.arguments = [ "-c", "open", "-a","/Applications/Google Chrome.app","--args","myargs=ARGS"]
        task.standardOutput = pipe
        let file = pipe.fileHandleForReading
        task.launch()
        if let result = NSString(data: file.readDataToEndOfFile(), encoding: NSUTF8StringEncoding) {
            print(result as String)
        }
        else {print("--- Unable to initialize string from file data ---")}

        for argum in task.arguments!{
            print(argum)
        }

它只输出 -c、-a... 的用途。

Answer 1

我怀疑这一行:

task.arguments = ["-c", String(format:"%@", self)]

正在有效地创建此命令行:

"/bin/sh" "-c" "open -a /Applications/Google Chrome.app   --args argsToSet=\"MYARGS\""

当你想要的是:

"/bin/sh" "-c" "open" "-a" "/Applications/Google Chrome.app"   "--args" "argsToSet=\"MYARGS\""

(或类似的东西)。

因此将参数保存为数组，而不是单个字符串。这样做意味着您不需要像 \" 这样的东西；事实上您根本不需要使用引号。