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111 lines
2.3 KiB
JavaScript
111 lines
2.3 KiB
JavaScript
"use strict";
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var nconf = require('nconf'),
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fs = require('fs'),
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pidFilePath = __dirname + '/pidfile',
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output = fs.openSync(__dirname + '/logs/output.log', 'a'),
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start = function() {
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var nbb_start = function(callback) {
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if (timesStarted > 3) {
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console.log('\n[loader] Experienced three start attempts in 10 seconds, most likely an error on startup. Halting.');
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return nbb_stop();
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}
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timesStarted++;
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if (startTimer) {
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clearTimeout(startTimer);
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}
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startTimer = setTimeout(resetTimer, 1000*10);
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if (nbb) {
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nbbOld = nbb;
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}
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nbb = require('child_process').fork('./app', process.argv.slice(2), {
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env: process.env
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});
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nbb.on('message', function(message) {
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if (message && typeof message === 'object' && message.action) {
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switch (message.action) {
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case 'ready':
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if (!callback) return nbb.kill('SIGCONT');
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callback();
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break;
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case 'restart':
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nbb_restart();
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break;
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}
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}
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});
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nbb.on('exit', function(code, signal) {
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if (code) {
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nbb_start();
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} else {
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nbb_stop();
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}
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});
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},
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nbb_stop = function() {
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if (startTimer) {
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clearTimeout(startTimer);
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}
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nbb.kill();
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if (fs.existsSync(pidFilePath)) {
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var pid = parseInt(fs.readFileSync(pidFilePath, { encoding: 'utf-8' }), 10);
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if (process.pid === pid) {
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fs.unlinkSync(pidFilePath);
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}
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}
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},
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nbb_restart = function() {
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nbb_start(function() {
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nbbOld.removeAllListeners('exit').on('exit', function() {
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nbb.kill('SIGCONT');
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});
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nbbOld.kill();
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});
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},
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resetTimer = function() {
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clearTimeout(startTimer);
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timesStarted = 0;
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},
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timesStarted = 0,
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startTimer;
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process.on('SIGINT', nbb_stop);
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process.on('SIGTERM', nbb_stop);
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process.on('SIGHUP', nbb_restart);
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nbb_start();
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},
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nbb, nbbOld;
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nconf.argv();
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// Start the daemon!
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if (nconf.get('daemon') !== false) {
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// Check for a still-active NodeBB process
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if (fs.existsSync(pidFilePath)) {
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try {
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var pid = fs.readFileSync(pidFilePath, { encoding: 'utf-8' });
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process.kill(pid, 0);
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process.exit();
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} catch (e) {
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fs.unlinkSync(pidFilePath);
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}
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}
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// Daemonize and record new pid
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require('daemon')({
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stdout: output
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});
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fs.writeFile(__dirname + '/pidfile', process.pid);
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start();
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} else {
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start();
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}
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