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Only enable terminal colors when supported #241

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Merged
merged 1 commit into from
Jun 2, 2025
Merged

Only enable terminal colors when supported #241

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29 changes: 25 additions & 4 deletions Sources/JavaKitShared/TerminalColors.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,19 @@
//
//===----------------------------------------------------------------------===//

import Foundation

private var isColorSupported: Bool {
let env = ProcessInfo.processInfo.environment
if env["NO_COLOR"] != nil {
return false
}
if let term = env["TERM"], term.contains("color") || env["COLORTERM"] != nil {
return true
}
return false
}

package enum Rainbow: String {
case black = "\u{001B}[0;30m"
case red = "\u{001B}[0;31m"
Expand Down Expand Up @@ -139,13 +152,17 @@ package extension String {
self
}
}

var `default`: String {
self.colored(as: .default)
}

func colored(as color: Rainbow) -> String {
"\(color.rawValue)\(self)\(Rainbow.default.rawValue)"
return if isColorSupported {
"\(color.rawValue)\(self)\(Rainbow.default.rawValue)"
} else {
self
}
}
}

Expand Down Expand Up @@ -185,12 +202,16 @@ package extension Substring {
var bold: String {
self.colored(as: .bold)
}

var `default`: String {
self.colored(as: .default)
}

func colored(as color: Rainbow) -> String {
"\(color.rawValue)\(self)\(Rainbow.default.rawValue)"
return if isColorSupported {
"\(color.rawValue)\(self)\(Rainbow.default.rawValue)"
} else {
String(self)
}
}
}