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hotomoe/src/index.ts

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/**
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* Misskey Entory Point!
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*/
Error.stackTraceLimit = Infinity;
/**
* Module dependencies
*/
import * as fs from 'fs';
import * as os from 'os';
import * as cluster from 'cluster';
const prominence = require('prominence');
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import Logger from './utils/logger';
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import * as chalk from 'chalk';
const git = require('git-last-commit');
const portUsed = require('tcp-port-used');
import ProgressBar from './utils/cli/progressbar';
import initdb from './db/mongodb';
import checkDependencies from './utils/check-dependencies';
// Init babel
require('babel-core/register');
require('babel-polyfill');
const env = process.env.NODE_ENV;
const IS_PRODUCTION = env === 'production';
const IS_DEBUG = !IS_PRODUCTION;
global.config = require('./config').default(`${__dirname}/../.config/config.yml`);
/**
* Initialize state
*/
enum State {
success,
warn,
failed
}
// Set process title
process.title = 'Misskey';
// Start app
main();
/**
* Init proccess
*/
function main(): void {
// Master
if (cluster.isMaster) {
master();
} else { // Workers
worker();
}
}
/**
* Init master proccess
*/
async function master(): Promise<void> {
let state: State;
try {
// initialize app
state = await init();
} catch (e) {
console.error(e);
process.exit(1);
}
switch (state) {
case State.failed:
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Logger.error(chalk.red('Fatal error occurred :('));
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process.exit();
return;
case State.warn:
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Logger.warn(chalk.yellow('Some problem(s) :|'));
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break;
case State.success:
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Logger.info(chalk.green('OK :)'));
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break;
}
// Spawn workers
spawn(() => {
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console.log(chalk.bold.green(`\nMisskey is now running. [port:${config.port}]`));
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// Listen new workers
cluster.on('fork', worker => {
console.log(`Process forked: [${worker.id}]`);
});
// Listen online workers
cluster.on('online', worker => {
console.log(`Process is now online: [${worker.id}]`);
});
// Listen for dying workers
cluster.on('exit', worker => {
// Replace the dead worker,
// we're not sentimental
console.log(chalk.red(`[${worker.id}] died :(`));
cluster.fork();
});
});
}
/**
* Init worker proccess
*/
function worker(): void {
// Register config
global.config = config;
// Init mongo
initdb().then(db => {
global.db = db;
// start server
require('./server');
}, err => {
console.error(err);
process.exit(0);
});
}
/**
* Init app
*/
async function init(): Promise<State> {
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let warn = false;
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Logger.info('Welcome to Misskey!');
Logger.info(chalk.bold('Misskey Core <aoi>'));
Logger.info('Initializing...');
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// Get commit info
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let lastCommitLogger = new Logger('LastCommit');
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try {
const commit = await prominence(git).getLastCommit();
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const shortHash: string = commit.shortHash;
const hash: string = commit.hash;
const commitDate = new Date(parseInt(commit.committedOn, 10) * 1000).toLocaleDateString('ja-JP');
const commitTime = new Date(parseInt(commit.committedOn, 10) * 1000).toLocaleTimeString('ja-JP');
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lastCommitLogger.info(`${shortHash}${chalk.gray(hash.substr(shortHash.length))}`);
lastCommitLogger.info(`${commit.subject} ${chalk.green(`(${commitDate} ${commitTime})`)} ${chalk.blue(`<${commit.author.name}>`)}`);
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} catch (e) {
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lastCommitLogger.info('No commit information found')
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}
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let envLogger = new Logger('Env');
envLogger.info(typeof env == 'undefined' ? 'NODE_ENV is not set' : `NODE_ENV: ${env}`);
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if (IS_DEBUG) {
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envLogger.warn('The environment is not in production mode');
envLogger.warn('Do not use for production purpose');
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}
// Get machine info
const totalmem = (os.totalmem() / 1024 / 1024 / 1024).toFixed(1);
const freemem = (os.freemem() / 1024 / 1024 / 1024).toFixed(1);
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let machineLogger = new Logger('Machine');
machineLogger.info(os.hostname());
machineLogger.info(`CPU: ${os.cpus().length}core`);
machineLogger.info(`MEM: ${totalmem}GB (available: ${freemem}GB)`);
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if (!fs.existsSync(`${__dirname}/../.config/config.yml`)) {
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Logger.error('Configuration not found');
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return State.failed;
}
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let configLogger = new Logger('Config');
configLogger.info('Successfully loaded');
configLogger.info(`maintainer: ${config.maintainer}`);
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checkDependencies();
// Check if a port is being used
if (await portUsed.check(config.port)) {
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Logger.error(`Port: ${config.port} is already used!`);
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return State.failed;
}
// Try to connect to MongoDB
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let mongoDBLogger = new Logger('MongoDB');
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try {
const db = await initdb(config);
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mongoDBLogger.info('Successfully connected');
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db.close();
} catch (e) {
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mongoDBLogger.error(`${e}`);
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return State.failed;
}
return warn ? State.warn : State.success;
}
/**
* Spawn workers
*/
function spawn(callback: any): void {
// Count the machine's CPUs
const cpuCount = os.cpus().length;
const progress = new ProgressBar(cpuCount, 'Starting workers');
// Create a worker for each CPU
for (let i = 0; i < cpuCount; i++) {
const worker = cluster.fork();
worker.on('message', message => {
if (message === 'ready') {
progress.increment();
}
});
}
// On all workers started
progress.on('complete', () => {
callback();
});
}
// Dying away...
process.on('exit', () => {
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Logger.info('The process is going exit');
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});