mirror of
https://github.com/smogon/pokemon-showdown.git
synced 2026-05-20 05:58:08 -05:00
b665660608
Now that nodejs/node#3072 is mostly fixed, we can finally start using Node 4+ features. This refactor: - uses arrow functions where appropriate Note that arrow functions still aren't used in Mocha, where `this` is sometimes meaningful. This also removes the need for .bind() nearly everywhere, as well as the `self = this` trick. - refactors Validator and Connection into ES6 classes - no longer uses Array#forEach for iterating arrays We strongly prefer for (let i = 0; i < arr.length; i++) because of performance reasons. Most forEaches have been replaced with for..of, though, which is 5x slower than the long-form loop but 2x faster than forEach, which is good enough outside of most inner loops. The only exception is tournaments, which is due for a more invasive refactor soon anyway.
90 lines
2.2 KiB
JavaScript
90 lines
2.2 KiB
JavaScript
'use strict';
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const REPL_ENABLED = false;
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const fs = require('fs');
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const path = require('path');
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const net = require('net');
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let sockets = [];
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function cleanup() {
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for (let s = 0; s < sockets.length; ++s) {
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try {
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fs.unlinkSync(sockets[s]);
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} catch (e) {}
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}
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}
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process.on("exit", cleanup);
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// exit handlers aren't called by the default handler
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if (process.listeners('SIGHUP').length === 0) {
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process.on('SIGHUP', () => process.exit(128 + 1));
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}
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if (process.listeners('SIGINT').length === 0) {
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process.on('SIGINT', () => process.exit(128 + 2));
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}
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// The eval function is passed in because there is no other way to access a file's non-global context
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exports.start = function (prefix, suffix, evalFunction) {
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if (!REPL_ENABLED) return;
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if (process.platform === 'win32') return; // Windows doesn't support sockets mounted in the filesystem
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let resolvedPrefix = path.resolve(__dirname, Config.replsocketprefix || 'logs/repl', prefix);
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if (!evalFunction) {
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evalFunction = suffix;
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suffix = "";
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}
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let name = resolvedPrefix + suffix;
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if (prefix === 'app') {
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// Clear out any old sockets
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let directory = path.dirname(resolvedPrefix);
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for (let file of fs.readdirSync(directory)) {
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let stat = fs.statSync(directory + '/' + file);
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if (!stat.isSocket()) {
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continue;
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}
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let socket = net.connect(directory + '/' + file, () => {
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socket.end();
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socket.destroy();
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}).on('error', () => {
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fs.unlink(directory + '/' + file, () => {});
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});
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}
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}
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net.createServer(socket => {
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require('repl').start({
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input: socket,
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output: socket,
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eval: (cmd, context, filename, callback) => {
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try {
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callback(null, evalFunction(cmd));
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} catch (e) {
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callback(e);
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}
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},
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}).on('exit', () => socket.end());
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socket.on('error', () => socket.destroy());
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}).listen(name, () => {
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fs.chmodSync(name, Config.replsocketmode || 0o600);
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sockets.push(name);
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}).on('error', e => {
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if (e.code === "EADDRINUSE") {
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fs.unlink(name, e => {
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if (e && e.code !== "ENOENT") {
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require('./crashlogger.js')(e, 'REPL: ' + name);
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return;
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}
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exports.start(prefix, suffix, evalFunction);
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});
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return;
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}
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require('./crashlogger.js')(e, 'REPL: ' + name);
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});
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};
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