2019-01-03 06:53:21 +00:00
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//
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// ExternalCommand.swift
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// MasKit
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//
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// Created by Ben Chatelain on 1/1/19.
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// Copyright © 2019 mas-cli. All rights reserved.
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//
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/// CLI command
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public protocol ExternalCommand {
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var binaryPath: String { get set }
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var process: Process { get }
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2019-01-03 07:16:45 +00:00
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var stdout: String { get }
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var stderr: String { get }
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2019-01-03 06:53:21 +00:00
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var stdoutPipe: Pipe { get }
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var stderrPipe: Pipe { get }
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var exitCode: Int? { get }
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var succeeded: Bool { get }
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var failed: Bool { get }
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/// Runs the command.
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2019-01-04 00:30:56 +00:00
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func run(arguments: String...) throws
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2019-01-03 06:53:21 +00:00
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}
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/// Common implementation
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extension ExternalCommand {
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public var stdout: String {
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2019-01-03 06:53:21 +00:00
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let data = stdoutPipe.fileHandleForReading.readDataToEndOfFile()
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return String(data: data, encoding: .utf8) ?? ""
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}
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2019-01-03 06:53:21 +00:00
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public var stderr: String {
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let data = stderrPipe.fileHandleForReading.readDataToEndOfFile()
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return String(data: data, encoding: .utf8) ?? ""
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2019-01-12 01:06:02 +00:00
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}
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2019-01-03 06:53:21 +00:00
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public var exitCode: Int? {
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return Int(process.terminationStatus)
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}
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public var succeeded: Bool {
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return exitCode == 0
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}
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2019-01-12 01:06:02 +00:00
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public var failed: Bool {
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return !succeeded
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2019-01-12 01:06:02 +00:00
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}
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2019-01-03 06:53:21 +00:00
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/// Runs the command.
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2019-01-04 00:30:56 +00:00
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public func run(arguments: String...) throws {
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2019-01-03 06:53:21 +00:00
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process.standardOutput = stdoutPipe
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process.standardError = stderrPipe
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process.arguments = arguments
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if #available(OSX 10.13, *) {
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process.executableURL = URL(fileURLWithPath: binaryPath)
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do {
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try process.run()
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} catch {
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printError("Unable to launch command")
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//return throw Error()
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}
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} else {
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process.launchPath = binaryPath
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process.launch()
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}
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process.waitUntilExit()
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}
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}
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