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src/cashtab/config/env.js
- This file was added.
'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; |