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getConfigPath.js
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getConfigPath.js
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/*
* @Author: Sky.Sun
* @Date: 2018-07-09 16:29:18
* @Last Modified by: Sky.Sun
* @Last Modified time: 2018-07-12 15:53:37
*/
/**
* Returns the corresponding config file
* based on the incoming config parameter or the NODE_ENV environment variable
*/
const fs = require('fs');
const path = require('path');
let modulePath;
module.exports = () => {
if (modulePath) {
return modulePath;
}
let configName = process.env.config || process.env.NODE_ENV || 'development';
if (path.extname(configName) !== '.js') {
configName = `${configName}.js`;
}
const configPath = path.join(__dirname, './config', configName);
console.info(`Required config file: ${configPath}`);
try {
const stats = fs.statSync(configPath);
if (stats.isFile()) {
modulePath = configPath;
return modulePath;
}
console.error(`Config file: ${configPath} is not a file!`);
process.exit(1);
} catch (err) {
console.error(`Get config file: ${configPath} error!`, err);
process.exit(1);
}
}