Start Tiddlywiki on Node.js using random port

[kookma]

I have frequently start different Tiddlywiki by visiting the folder and issue the below command

tiddlywiki --server 3000

or simply

tiddlywiki --listen

Sometime I forget which ports are available and I get error!!

I am wondering if we could have an option to start Tiddlywiki on a random port or next vacant port like

tiddlywiki --listen random

or

tiddlywiki --server random

[linonetwo]

Maybe you can use a script to run wiki:

import path from 'path';
import tiddlywiki from 'tiddlywiki';

function startNodeJSWiki({ homePath, tiddlyWikiPort = Math.floor(Math.random() * 13000) - 3000, userName }) {
  return new Promise((resolve, reject) => {
    const wikiInstance = tiddlywiki.TiddlyWiki();
    try {
      process.env.TIDDLYWIKI_PLUGIN_PATH = path.resolve(homePath, 'plugins');
      process.env.TIDDLYWIKI_THEME_PATH = path.resolve(homePath, 'themes');
      // add tiddly filesystem back https://github.com/Jermolene/TiddlyWiki5/issues/4484#issuecomment-596779416
      wikiInstance.boot.argv = [
        '+plugins/tiddlywiki/filesystem',
        '+plugins/tiddlywiki/tiddlyweb',
        homePath,
        '--listen',
        `anon-username=${userName}`,
        `port=${tiddlyWikiPort}`,
        `host=${defaultServerIP}`,
        'root-tiddler=$:/core/save/lazy-images',
      ];
      wikiInstance.boot.startup({
        callback: () => resolve(`Tiddlywiki booted at http://localhost:${tiddlyWikiPort}`),
      });
    } catch (error) {
      const message = `Tiddlywiki booted failed with error ${error.message} ${error.stack ?? ''}`;
      reject(message);
    }
  });
}

And maybe check for port usage before use it, and reroll if used.

[linonetwo]

I use GUI to manage port for each wiki, so it will never collide.

[kookma]

Hi @linonetwo
Wonderful! Thank you!

I assume it should be in the path (I am on Windows 10) and be called like

startNodeJSWiki   mywiki 

[linonetwo]

I think the JS should be the next Shell script, with https://github.com/google/zx or write it your self (just save my script to a .mjs file) and add it to the path.

You can use process.argv to get parameters as google/zx#83 said.

[linonetwo]

I think probably you can add your tiddlers folder to the path, and use tiddlywiki itself to manage scripts? I haven't try this, but I think this will make manage scripts easier, easier to search and find and backup.

[kookma]

think the JS should be the next Shell script, with https://github.com/google/zx or write it your self (just save my script to a .mjs file) and add it to the path.

Thank you @linonetwo I got the point!

I think probably you can add your tiddlers folder to the path, and use tiddlywiki itself to manage scripts?

This is very interesting! I have not do this before!