Run provides a quick, concise way to run an external command and read its standard output and standard error.
To execute a simple command you would do:
let result = run("ls -all")
print(result.stdout)result type is RunResults, it contains:
exitStatus: The command exit statusstdout: The standard output for the command executedstderr: The standard error for the command executed
While run("command") can split the arguments by spaces. Some times argument splitting is not trivial. If you have multiple argument to pass to the command to execute, you should use run(command: String, args: String...). The above translates to:
let result = run("ls", args: "-all")To customize the run function, you can pass in a customization block:
let result = run("ls -all") { settings in
settings.dryRun = true
settings.echo = [.Stdout, .Stderr, .Command]
settings.interactive = false
}settings is an instance of RunSettings, which contains the following variables:
settings.dryRun: defaults to false. If false, the command is actually run. If true, the command is logged to the stdout paramter of resultsettings.echo: Customize the message printed to stdout,echocan contain any of the following:EchoSettings.Stdout: The stdout returned from running the command will be printed to the terminalEchoSettings.Stderr: The stderr returned from running the command will be printed to the terminalEchoSettings.Command: The command executed will be printed to the terminal
settings.interactive: defaults to false. If set to true the command will be executed usingsystemkernel function and only the exit status will be captured. If set to false, the command will be executed usingNSTaskand both stdout and stderr will be captured. Setinteractiveto true if you expect the launched command to ask input from the user through the stdin.
runWithoutCapture("command") is a quick way to run a command in interactive mode. The return value is the exit code of that command.
.package(url: "https://github.com/getGuaka/Run.git", from: "0.1.0"),MIT