Differential D8452 Diff 25853 web/cashtab/config/env.js

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web/cashtab/config/env.js

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				'use strict';

				const fs = require('fs');
				const path = require('path');
				const paths = require('./paths');

				// Make sure that including paths.js after env.js will read .env variables.
				delete require.cache[require.resolve('./paths')];

				const NODE_ENV = process.env.NODE_ENV;
				if (!NODE_ENV) {
				throw new Error(
				'The NODE_ENV environment variable is required but was not specified.'
				);
				}

				// https://github.com/bkeepers/dotenv#what-other-env-files-can-i-use
				const dotenvFiles = [
				`${paths.dotenv}.${NODE_ENV}.local`,
				`${paths.dotenv}.${NODE_ENV}`,
				// Don't include `.env.local` for `test` environment
				// since normally you expect tests to produce the same
				// results for everyone
				NODE_ENV !== 'test' && `${paths.dotenv}.local`,
				paths.dotenv,
				].filter(Boolean);

				// Load environment variables from .env* files. Suppress warnings using silent
				// if this file is missing. dotenv will never modify any environment variables
				// that have already been set. Variable expansion is supported in .env files.
				// https://github.com/motdotla/dotenv
				// https://github.com/motdotla/dotenv-expand
				dotenvFiles.forEach(dotenvFile => {
				if (fs.existsSync(dotenvFile)) {
				require('dotenv-expand')(
				require('dotenv').config({
				path: dotenvFile,
				})
				);
				}
				});

				// We support resolving modules according to `NODE_PATH`.
				// This lets you use absolute paths in imports inside large monorepos:
				// https://github.com/facebook/create-react-app/issues/253.
				// It works similar to `NODE_PATH` in Node itself:
				// https://nodejs.org/api/modules.html#modules_loading_from_the_global_folders
				// Note that unlike in Node, only relative paths from `NODE_PATH` are honored.
				// Otherwise, we risk importing Node.js core modules into an app instead of Webpack shims.
				// https://github.com/facebook/create-react-app/issues/1023#issuecomment-265344421
				// We also resolve them to make sure all tools using them work consistently.
				const appDirectory = fs.realpathSync(process.cwd());
				process.env.NODE_PATH = (process.env.NODE_PATH \|\| '')
				.split(path.delimiter)
				.filter(folder => folder && !path.isAbsolute(folder))
				.map(folder => path.resolve(appDirectory, folder))
				.join(path.delimiter);

				// Grab NODE_ENV and REACT_APP_* environment variables and prepare them to be
				// injected into the application via DefinePlugin in Webpack configuration.
				const REACT_APP = /^REACT_APP_/i;

				function getClientEnvironment(publicUrl) {
				const raw = Object.keys(process.env)
				.filter(key => REACT_APP.test(key))
				.reduce(
				(env, key) => {
				env[key] = process.env[key];
				return env;
				},
				{
				// Useful for determining whether we’re running in production mode.
				// Most importantly, it switches React into the correct mode.
				NODE_ENV: process.env.NODE_ENV \|\| 'development',
				// Useful for resolving the correct path to static assets in `public`.
				// For example, <img src={process.env.PUBLIC_URL + '/img/logo.png'} />.
				// This should only be used as an escape hatch. Normally you would put
				// images into the `src` and `import` them in code to get their paths.
				PUBLIC_URL: publicUrl,
				}
				);
				// Stringify all values so we can feed into Webpack DefinePlugin
				const stringified = {
				'process.env': Object.keys(raw).reduce((env, key) => {
				env[key] = JSON.stringify(raw[key]);
				return env;
				}, {}),
				};

				return { raw, stringified };
				}

				module.exports = getClientEnvironment;