Refactoring: Extract checkMongoDB function
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commit
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37
src/index.ts
37
src/index.ts
@ -13,7 +13,6 @@ import * as portscanner from 'portscanner';
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import * as isRoot from 'is-root';
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import Xev from 'xev';
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import * as sysUtils from 'systeminformation';
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import { nativeDbConn } from './db/mongodb';
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import Logger from './misc/logger';
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import serverStats from './daemons/server-stats';
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@ -23,6 +22,7 @@ import { Config } from './config/types';
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import { lessThan } from './prelude/array';
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import * as pkg from '../package.json';
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import { program } from './argv';
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import { checkMongoDB } from './misc/check-mongodb';
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const logger = new Logger('core', 'cyan');
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const bootLogger = logger.createSubLogger('boot', 'magenta');
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@ -199,7 +199,7 @@ async function init(): Promise<Config> {
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// Try to connect to MongoDB
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try {
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await checkMongoDB(config);
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await checkMongoDB(config, bootLogger);
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} catch (e) {
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bootLogger.error('Cannot connect to database', true);
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process.exit(1);
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@ -208,39 +208,6 @@ async function init(): Promise<Config> {
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return config;
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}
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const requiredMongoDBVersion = [3, 6];
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function checkMongoDB(config: Config) {
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return new Promise((res, rej) => {
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const mongoDBLogger = bootLogger.createSubLogger('db');
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const u = config.mongodb.user ? encodeURIComponent(config.mongodb.user) : null;
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const p = config.mongodb.pass ? encodeURIComponent(config.mongodb.pass) : null;
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const uri = `mongodb://${u && p ? `${u}:****@` : ''}${config.mongodb.host}:${config.mongodb.port}/${config.mongodb.db}`;
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mongoDBLogger.info(`Connecting to ${uri} ...`);
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nativeDbConn().then(db => {
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mongoDBLogger.succ('Connectivity confirmed');
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db.admin().serverInfo().then(x => {
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const version = x.version as string;
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mongoDBLogger.info(`Version: ${version}`);
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if (lessThan(version.split('.').map(x => parseInt(x, 10)), requiredMongoDBVersion)) {
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mongoDBLogger.error(`MongoDB version is less than ${requiredMongoDBVersion.join('.')}. Please upgrade it.`);
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rej('outdated version');
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} else {
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res();
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}
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}).catch(err => {
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mongoDBLogger.error(`Failed to fetch server info: ${err.message}`);
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rej(err);
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});
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}).catch(err => {
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mongoDBLogger.error(err.message);
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rej(err);
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});
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});
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}
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async function spawnWorkers(limit: number = Infinity) {
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const workers = Math.min(limit, os.cpus().length);
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bootLogger.info(`Starting ${workers} worker${workers === 1 ? '' : 's'}...`);
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37
src/misc/check-mongodb.ts
Normal file
37
src/misc/check-mongodb.ts
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@ -0,0 +1,37 @@
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import { nativeDbConn } from '../db/mongodb';
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import { Config } from '../config/types';
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import Logger from './logger';
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import { lessThan } from '../prelude/array';
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const requiredMongoDBVersion = [3, 6];
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export function checkMongoDB(config: Config, logger: Logger) {
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return new Promise((res, rej) => {
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const mongoDBLogger = logger.createSubLogger('db');
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const u = config.mongodb.user ? encodeURIComponent(config.mongodb.user) : null;
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const p = config.mongodb.pass ? encodeURIComponent(config.mongodb.pass) : null;
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const uri = `mongodb://${u && p ? `${u}:****@` : ''}${config.mongodb.host}:${config.mongodb.port}/${config.mongodb.db}`;
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mongoDBLogger.info(`Connecting to ${uri} ...`);
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nativeDbConn().then(db => {
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mongoDBLogger.succ('Connectivity confirmed');
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db.admin().serverInfo().then(x => {
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const version = x.version as string;
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mongoDBLogger.info(`Version: ${version}`);
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if (lessThan(version.split('.').map(x => parseInt(x, 10)), requiredMongoDBVersion)) {
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mongoDBLogger.error(`MongoDB version is less than ${requiredMongoDBVersion.join('.')}. Please upgrade it.`);
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rej('outdated version');
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} else {
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res();
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}
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}).catch(err => {
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mongoDBLogger.error(`Failed to fetch server info: ${err.message}`);
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rej(err);
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});
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}).catch(err => {
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mongoDBLogger.error(err.message);
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rej(err);
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});
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});
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}
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