Function isColorSupported

lib/cli.js:834–856

()

 * @returns {boolean} true when colors supported, otherwise false
 */
const isColorSupported = () => {
	const { env = {}, argv = [], platform = "" } = process;

	// Read values instead of using `in`: Deno's and Bun's `process.env` honor
	// property access but not the `in`/`has` trap, so `"X" in env` is unreliable.
	const isDisabled = env.NO_COLOR !== undefined || argv.includes("--no-color");
	const isForced = env.FORCE_COLOR !== undefined || argv.includes("--color");
	const isWindows = platform === "win32";
	const isDumbTerminal = env.TERM === "dumb";

	const isCompatibleTerminal = tty.isatty(1) && env.TERM && !isDumbTerminal;

	const isCI =
		env.CI !== undefined &&
		(env.GITHUB_ACTIONS !== undefined ||
			env.GITLAB_CI !== undefined ||
			env.CIRCLECI !== undefined);

	return (
		!isDisabled &&
		(isForced || (isWindows && !isDumbTerminal) || isCompatibleTerminal || isCI)
	);
};

/**
 * Returns result.