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Refactoring: Extract checkMongoDB function

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This commit is contained in:
syuilo 2019-02-05 06:43:36 +09:00
parent 014eba15bc
commit e97acdb01b
2 changed files with 39 additions and 35 deletions
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37
src/index.ts
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@ -13,7 +13,6 @@ import * as portscanner from 'portscanner';
import * as isRoot from 'is-root';
import Xev from 'xev';
import * as sysUtils from 'systeminformation';
import { nativeDbConn } from './db/mongodb';
import Logger from './misc/logger';
import serverStats from './daemons/server-stats';
@ -23,6 +22,7 @@ import { Config } from './config/types';
import { lessThan } from './prelude/array';
import * as pkg from '../package.json';
import { program } from './argv';
import { checkMongoDB } from './misc/check-mongodb';
const logger = new Logger('core', 'cyan');
const bootLogger = logger.createSubLogger('boot', 'magenta');
@ -199,7 +199,7 @@ async function init(): Promise<Config> {
// Try to connect to MongoDB
try {
await checkMongoDB(config);
await checkMongoDB(config, bootLogger);
} catch (e) {
bootLogger.error('Cannot connect to database', true);
process.exit(1);
@ -208,39 +208,6 @@ async function init(): Promise<Config> {
return config;
}
const requiredMongoDBVersion = [3, 6];
function checkMongoDB(config: Config) {
return new Promise((res, rej) => {
const mongoDBLogger = bootLogger.createSubLogger('db');
const u = config.mongodb.user ? encodeURIComponent(config.mongodb.user) : null;
const p = config.mongodb.pass ? encodeURIComponent(config.mongodb.pass) : null;
const uri = `mongodb://${u && p ? `${u}:****@` : ''}${config.mongodb.host}:${config.mongodb.port}/${config.mongodb.db}`;
mongoDBLogger.info(`Connecting to ${uri} ...`);
nativeDbConn().then(db => {
mongoDBLogger.succ('Connectivity confirmed');
db.admin().serverInfo().then(x => {
const version = x.version as string;
mongoDBLogger.info(`Version: ${version}`);
if (lessThan(version.split('.').map(x => parseInt(x, 10)), requiredMongoDBVersion)) {
mongoDBLogger.error(`MongoDB version is less than ${requiredMongoDBVersion.join('.')}. Please upgrade it.`);
rej('outdated version');
} else {
res();
}
}).catch(err => {
mongoDBLogger.error(`Failed to fetch server info: ${err.message}`);
rej(err);
});
}).catch(err => {
mongoDBLogger.error(err.message);
rej(err);
});
});
}
async function spawnWorkers(limit: number = Infinity) {
const workers = Math.min(limit, os.cpus().length);
bootLogger.info(`Starting ${workers} worker${workers === 1 ? '' : 's'}...`);

37
src/misc/check-mongodb.ts Normal file
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@ -0,0 +1,37 @@
import { nativeDbConn } from '../db/mongodb';
import { Config } from '../config/types';
import Logger from './logger';
import { lessThan } from '../prelude/array';
const requiredMongoDBVersion = [3, 6];
export function checkMongoDB(config: Config, logger: Logger) {
return new Promise((res, rej) => {
const mongoDBLogger = logger.createSubLogger('db');
const u = config.mongodb.user ? encodeURIComponent(config.mongodb.user) : null;
const p = config.mongodb.pass ? encodeURIComponent(config.mongodb.pass) : null;
const uri = `mongodb://${u && p ? `${u}:****@` : ''}${config.mongodb.host}:${config.mongodb.port}/${config.mongodb.db}`;
mongoDBLogger.info(`Connecting to ${uri} ...`);
nativeDbConn().then(db => {
mongoDBLogger.succ('Connectivity confirmed');
db.admin().serverInfo().then(x => {
const version = x.version as string;
mongoDBLogger.info(`Version: ${version}`);
if (lessThan(version.split('.').map(x => parseInt(x, 10)), requiredMongoDBVersion)) {
mongoDBLogger.error(`MongoDB version is less than ${requiredMongoDBVersion.join('.')}. Please upgrade it.`);
rej('outdated version');
} else {
res();
}
}).catch(err => {
mongoDBLogger.error(`Failed to fetch server info: ${err.message}`);
rej(err);
});
}).catch(err => {
mongoDBLogger.error(err.message);
rej(err);
});
});
}