forked from jasder/forgeplus
94 lines
3.4 KiB
JavaScript
94 lines
3.4 KiB
JavaScript
'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
|
||
var 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/facebookincubator/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/facebookincubator/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: '/react/build/.',
|
||
}
|
||
);
|
||
// 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;
|