@netlify/build/lib/env/main.js

Netlify build module

import { env } from 'process';
import { includeKeys } from 'filter-obj';
import { getParentColorEnv } from '../log/colors.js';
// Retrieve the environment variables passed to plugins and `build.command`
// When run locally, this tries to emulate the production environment.
export const getChildEnv = function ({ envOpt, env: allConfigEnv }) {
    const parentColorEnv = getParentColorEnv();
    const parentEnv = { ...env, ...allConfigEnv, ...envOpt, ...parentColorEnv };
    return includeKeys(parentEnv, shouldKeepEnv);
};
const shouldKeepEnv = function (key) {
    return !REMOVED_PARENT_ENV.has(key.toLowerCase());
};
const REMOVED_PARENT_ENV = new Set(['bugsnag_key']);