从How do I run an terminal command in a swift script? (e.g. xcodebuild)复制:你如何为一个过程设置环境变量?
import Foundation
@discardableResult
func shell(_ args: String...) -> Int32 {
let task = Process()
task.launchPath = "/usr/bin/env"
task.arguments = args
task.launch()
task.waitUntilExit()
return task.terminationStatus
}
shell("ls")
shell("xcodebuild", "-workspace", "myApp.xcworkspace")
这看起来整洁。我只是想知道如何设置$PWD
这样的环境变量(在这里命名为task
......)。
我试过如下:
import Foundation
@discardableResult
func execCommand(_ args: String...) -> Int32 {
let process = Process()
process.launchPath = "/usr/bin/env"
process.environment = ["PWD": "/Users"]
if let env = process.environment {
print(env["PWD"] ?? "Unknown")
} else {
print("Environment not available!")
}
process.arguments = args
process.launch()
process.waitUntilExit()
return process.terminationStatus
}
execCommand("pwd")
,并得到这些线路印刷:
/Users
/private/tmp/AppIcon.appiconset
显然,环境变量已定,但对pwd命令没有任何影响。
另一种方法:
import Foundation
@discardableResult
func execCommand(_ args: String...) -> Int32 {
let process = Process()
process.launchPath = "/usr/bin/env"
var environment = ProcessInfo.processInfo.environment
environment["PWD"] = "/Users" //optionally set new vars, or overwrite old ones
process.environment = environment
if let env = process.environment {
print(env["PWD"] ?? "Unknown")
} else {
print("Environment not available!")
}
process.arguments = args
process.launch()
process.waitUntilExit()
return process.terminationStatus
}
execCommand("pwd")
不幸的是相同的结果之前。
https://developer.apple.com/reference/foundation/process/1409412-environment – Alexander
你不应该叫'Process'实例的'task'。 'NSTask'已被重新命名。 – Alexander