let tty = require("tty")
|
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let isColorSupported =
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!("NO_COLOR" in process.env || process.argv.includes("--no-color")) &&
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("FORCE_COLOR" in process.env ||
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process.argv.includes("--color") ||
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process.platform === "win32" ||
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(tty.isatty(1) && process.env.TERM !== "dumb") ||
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"CI" in process.env)
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|
function formatter(open, close, replace = open) {
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return (input) => {
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let string = "" + input
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let index = string.indexOf(close, open.length)
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return !~index
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? open + string + close
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: open + replaceClose(string, close, replace, index) + close
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}
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}
|
|
function replaceClose(string, close, replace, index) {
|
let start = string.substring(0, index) + replace
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let end = string.substring(index + close.length)
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let nextIndex = end.indexOf(close)
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return !~nextIndex ? start + end : start + replaceClose(end, close, replace, nextIndex)
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}
|
|
function createColors(enabled = isColorSupported) {
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return {
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isColorSupported: enabled,
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reset: enabled ? (s) => `\x1b[0m${s}\x1b[0m` : String,
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bold: enabled ? formatter("\x1b[1m", "\x1b[22m", "\x1b[22m\x1b[1m") : String,
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dim: enabled ? formatter("\x1b[2m", "\x1b[22m", "\x1b[22m\x1b[2m") : String,
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italic: enabled ? formatter("\x1b[3m", "\x1b[23m") : String,
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underline: enabled ? formatter("\x1b[4m", "\x1b[24m") : String,
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inverse: enabled ? formatter("\x1b[7m", "\x1b[27m") : String,
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hidden: enabled ? formatter("\x1b[8m", "\x1b[28m") : String,
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strikethrough: enabled ? formatter("\x1b[9m", "\x1b[29m") : String,
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black: enabled ? formatter("\x1b[30m", "\x1b[39m") : String,
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red: enabled ? formatter("\x1b[31m", "\x1b[39m") : String,
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green: enabled ? formatter("\x1b[32m", "\x1b[39m") : String,
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yellow: enabled ? formatter("\x1b[33m", "\x1b[39m") : String,
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blue: enabled ? formatter("\x1b[34m", "\x1b[39m") : String,
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magenta: enabled ? formatter("\x1b[35m", "\x1b[39m") : String,
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cyan: enabled ? formatter("\x1b[36m", "\x1b[39m") : String,
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white: enabled ? formatter("\x1b[37m", "\x1b[39m") : String,
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gray: enabled ? formatter("\x1b[90m", "\x1b[39m") : String,
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bgBlack: enabled ? formatter("\x1b[40m", "\x1b[49m") : String,
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bgRed: enabled ? formatter("\x1b[41m", "\x1b[49m") : String,
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bgGreen: enabled ? formatter("\x1b[42m", "\x1b[49m") : String,
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bgYellow: enabled ? formatter("\x1b[43m", "\x1b[49m") : String,
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bgBlue: enabled ? formatter("\x1b[44m", "\x1b[49m") : String,
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bgMagenta: enabled ? formatter("\x1b[45m", "\x1b[49m") : String,
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bgCyan: enabled ? formatter("\x1b[46m", "\x1b[49m") : String,
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bgWhite: enabled ? formatter("\x1b[47m", "\x1b[49m") : String,
|
}
|
}
|
|
module.exports = createColors()
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module.exports.createColors = createColors
|
