mirror of
https://github.com/mas-cli/mas
synced 2024-11-23 03:53:09 +00:00
80 lines
1.8 KiB
Swift
80 lines
1.8 KiB
Swift
//
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// Utilities.swift
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// mas-cli
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//
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// Created by Andrew Naylor on 14/09/2016.
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// Copyright © 2016 Andrew Naylor. All rights reserved.
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//
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import Foundation
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/// A collection of output formatting helpers
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/// Terminal Control Sequence Indicator
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let csi = "\u{001B}["
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#if DEBUG
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var printObserver: ((String) -> Void)?
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// Override global print for testability.
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// See MasKitTests/OutputListener.swift.
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func print(_ items: Any..., separator: String = " ", terminator: String = "\n") {
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if let observer = printObserver {
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let output =
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items
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.map { "\($0)" }
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.joined(separator: separator)
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.appending(terminator)
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observer(output)
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}
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var prefix = ""
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for item in items {
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Swift.print(prefix, terminator: "")
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Swift.print(item, terminator: "")
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prefix = separator
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}
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Swift.print(terminator, terminator: "")
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}
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#endif
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func printInfo(_ message: String) {
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guard isatty(fileno(stdout)) != 0 else {
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print("==> \(message)")
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return
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}
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// Blue bold arrow, Bold text
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print("\(csi)1;34m==>\(csi)0m \(csi)1m\(message)\(csi)0m")
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}
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func printWarning(_ message: String) {
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guard isatty(fileno(stdout)) != 0 else {
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print("Warning: \(message)")
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return
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}
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// Yellow, underlined "Warning:" prefix
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print("\(csi)4;33mWarning:\(csi)0m \(message)")
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}
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public func printError(_ message: String) {
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guard isatty(fileno(stdout)) != 0 else {
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print("Error: \(message)")
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return
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}
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// Red, underlined "Error:" prefix
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print("\(csi)4;31mError:\(csi)0m \(message)")
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}
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func clearLine() {
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guard isatty(fileno(stdout)) != 0 else {
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return
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}
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print("\(csi)2K\(csi)0G", terminator: "")
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fflush(stdout)
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}
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