@netlify/build/lib/log/colors.js

Netlify build module

import { inspect } from 'util';
import supportsColor from 'supports-color';
const hasColors = () => supportsColor.stdout !== false;
/**
 * Plugin child processes use `stdio: 'pipe'` so they are always
 * non-interactive even if the parent is an interactive TTY. This means they
 * would normally lose colors. If the parent has colors, we pass an environment
 * variable to the child process to force colors.
 */
export const getParentColorEnv = function () {
    if (!hasColors()) {
        return {};
    }
    return { FORCE_COLOR: '1' };
};
/**
 * Child processes and the buildbot relies on `FORCE_COLOR=1` to set colors.
 * However `utils.inspect()` (used by `console.log()`) uses
 * `process.stdout.hasColors` which is always `undefined` when the TTY is
 * non-interactive. So we need to set `util.inspect.defaultOptions.colors`
 * manually both in plugin processes.
 */
export const setInspectColors = function () {
    if (!hasColors()) {
        return;
    }
    inspect.defaultOptions.colors = true;
};