36 lines
986 B
TypeScript
36 lines
986 B
TypeScript
// Terminal styling utilities.
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// Respects NO_COLOR convention, --no-color flag, and TTY detection.
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import { isStdoutTTY } from "./tty";
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let _enabled: boolean | null = null;
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export function setColorEnabled(enabled: boolean): void {
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_enabled = enabled;
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}
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export function isColorEnabled(): boolean {
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if (_enabled !== null) return _enabled;
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// Respect NO_COLOR: https://no-color.org/
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if (process.env.NO_COLOR !== undefined && process.env.NO_COLOR !== "") {
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return false;
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}
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if (!isStdoutTTY()) return false;
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if (process.env.FORCE_COLOR && process.env.FORCE_COLOR !== "0") return true;
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return true;
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}
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function s(code: string): string {
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return isColorEnabled() ? code : "";
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}
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export const BOLD = () => s("\x1b[1m");
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export const DIM = () => s("\x1b[2m");
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export const GREEN = () => s("\x1b[32m");
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export const YELLOW = () => s("\x1b[33m");
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export const CYAN = () => s("\x1b[36m");
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export const RED = () => s("\x1b[31m");
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export const RESET = () => s("\x1b[0m");
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