Clean up port listening implementation; more commenting.

proxyServiceValidator.js

@@ -1,3 +1,6 @@
+//  This file is solely used for the automatically run GitHub job, which checks to
+//  see if all HU LTS code is working properly (at least on an Ubuntu machine).
+
 const axios = require("axios");
 const puppeteer = require("puppeteer");
 

run-command.mjs

@@ -2,10 +2,16 @@ import { readFile, writeFile, unlink, mkdir, rm } from 'node:fs/promises';
 import { exec, fork } from 'node:child_process';
 import { fileURLToPath } from 'node:url';
 import { build } from 'esbuild';
+import ecosystem from './ecosystem.config.js';
 
-//  Necessary constants are copied over from /src/server.mjs.
+//  Some necessary constants are copied over from /src/server.mjs.
 
-const config = Object.freeze(JSON.parse(await readFile(new URL("./src/config.json", import.meta.url))));
+const config = Object.freeze(
+    JSON.parse(await readFile(new URL("./src/config.json", import.meta.url)))
+  ),
+  ecosystemConfig = Object.freeze(
+    ecosystem.apps.find(app => app.name === "HolyUB") || apps[0]
+  );
 
 const serverUrl = (base => {
   try {
@@ -14,7 +20,7 @@ const serverUrl = (base => {
     base = new URL("http://a");
     base.host = config.host;
   }
-  base.port = process.env.PORT || config.port;
+  base.port = ecosystemConfig[ config.production ? "env_production" : "env" ].PORT;
   return Object.freeze(base);
 })();
 
@@ -28,7 +34,7 @@ for (let i = 2; i < process.argv.length; i++)
 //  config file.
     case "start":
       if (config.production)
-        exec("npx pm2 start ecosystem.config.js --env production --watch false",
+        exec("npx pm2 start ecosystem.config.js --env production",
           (error, stdout) => {
             if (error) throw error;
             console.log(stdout);
@@ -41,6 +47,8 @@ for (let i = 2; i < process.argv.length; i++)
           if (error) throw error;
           console.log(stdout);
         });
+//    The following approach (and similar approaches) will not work on Windows,
+//    because exiting this program will also terminate backend.js on Windows.
       else {
         const server = fork(
           fileURLToPath(new URL("./backend.js", import.meta.url)),
@@ -106,8 +114,12 @@ for (let i = 2; i < process.argv.length; i++)
 //  more PM2 debugging tools.
     case "kill":
       if (process.platform === "win32")
-        exec("( npx pm2 delete ecosystem.config.js ) ; taskkill /F /IM node*", (error, stdout) => {console.log(stdout)});
+        exec("( npx pm2 delete ecosystem.config.js ) ; taskkill /F /IM node*",
-      else exec("npx pm2 delete ecosystem.config.js; pkill node", (error, stdout) => {console.log(stdout)});
+          (error, stdout) => {console.log(stdout)}
+        );
+      else exec("npx pm2 delete ecosystem.config.js; pkill node",
+          (error, stdout) => {console.log(stdout)}
+        );
       break;
 
 //  No default case.

src/config.json

@@ -1,7 +1,6 @@
 {
   "title": "HU LTS",
   "host": "0.0.0.0",
-  "port": "8080",
   "minifyScripts": true,
   "production": false
 }

src/server.mjs

@@ -16,14 +16,20 @@ import { paintSource, tryReadFile } from './randomization.mjs';
 import loadTemplates from './templates.mjs';
 import { fileURLToPath } from 'node:url';
 import { existsSync, unlinkSync } from 'node:fs';
+import ecosystem from '../ecosystem.config.js';
 
-const config = Object.freeze(JSON.parse(
+const config = Object.freeze(
-    await readFile(new URL("./config.json", import.meta.url))
+    JSON.parse(await readFile(new URL("./config.json", import.meta.url)))
-  )),
+  ),
+  ecosystemConfig = Object.freeze(
+    ecosystem.apps.find(app => app.name === "HolyUB") || apps[0]
+  ),
   { pages, text404 } = pkg,
   __dirname = path.resolve();
 
 //  Record the server's location as a URL object, including its host and port.
+//  The host can be modified at /src/config.json, whereas the ports can be modified
+//  at /ecosystem.config.js.
 const serverUrl = (base => {
   try {
     base = new URL(config.host);
@@ -31,7 +37,7 @@ const serverUrl = (base => {
     base = new URL("http://a");
     base.host = config.host;
   }
-  base.port = process.env.PORT || config.port;
+  base.port = ecosystemConfig[ config.production ? "env_production" : "env" ].PORT;
   return Object.freeze(base);
 })();
 console.log(serverUrl);