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'use strict'
const path = require('path')
const dotenv = require('dotenv')
const dotenvExpand = require('dotenv-expand')
const { error } = require('./logger')
module.exports = function loadEnv(mode) {
const basePath = path.resolve(process.cwd(), `.env${mode ? `.${mode}` : ``}`)
const localPath = `${basePath}.local`
const load = (envPath) => {
try {
const env = dotenv.config({ path: envPath, debug: process.env.DEBUG })
dotenvExpand.expand(env)
} catch (err) {
// only ignore error if file is not found
if (err.toString().indexOf('ENOENT') < 0) {
error(err)
}
}
}
load(localPath)
load(basePath)
// by default, NODE_ENV and BABEL_ENV are set to "development" unless mode
// is production or test. However the value in .env files will take higher
// priority.
if (mode) {
const defaultNodeEnv = mode === 'production' || mode === 'test' ? mode : 'development'
if (process.env.NODE_ENV == null) {
process.env.NODE_ENV = defaultNodeEnv
}
if (process.env.BABEL_ENV == null) {
process.env.BABEL_ENV = defaultNodeEnv
}
}
}
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