pvgttm-web/lib/loadConfig.js
2023-02-20 11:46:46 -05:00

44 lines
1.2 KiB
JavaScript

module.exports = (opts, envKey) => {
const
fs = require('fs'),
path = require('path'),
json5 = require('json5'),
{ convertCamelToUpperSnakeCase, readJsonIfExists } = require('./utils'),
{ cwd, env } = process,
def = readJsonIfExists(path.resolve(__dirname, 'defaults.json5')),
// gets value from ENV || options || defaults (in that order)
getVal = (envName) => {
const snakeEnvName = `${envKey}_${convertCamelToUpperSnakeCase(envName)}`;
if (env[snakeEnvName]) return env[snakeEnvName];
if (opts[envName]) return opts[envName];
return def[envName];
},
// gets array from ENV || options || defaults (in that order)
getArray = (envName, optName = '') => {
if (optName === '') {
optName = envName;
envName = convertCamelToUpperSnakeCase(envName);
}
envName = `${envKey}_${envName}`;
if (env[envName]) return env[envName].split(path.delimiter);
if (Array.isArray(opts[optName]) && opts[optName].length) return opts[optName];
return def[optName];
};
return {
...Object.keys(def).reduce((acc, curr) => {
if (Array.isArray(def[curr])) acc[curr] = getArray(curr);
else acc[curr] = getVal(curr);
return acc;
}, {}),
};
};