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