Update ALL bot commands without reloading it (without "node ." or nodemon)

Question

I want to update my commands code without restarting bot fully using nodemon or just node . I wanted to make a command I can send to update all commands in my bot (basically commands collection where they are and their code stored). Here is the code I tried to use:

const { glob } = require('glob')
const { promisify } = require('util')
const globPromise = promisify(glob);

await client.commands.clear()

const commandFiles = await globPromise(`${process.cwd()}/commands/**/*.js`);
commandFiles.map((value) => {
const file = require(value);
const splitted = value.split("/");
const directory = splitted[splitted.length - 2];
    
if (file.name) {
const properties = { directory, ...file };
client.commands.set(file.name, properties);
}
})

Result says my code worked but commands are not updating, how can I fix it? Just in case: my djs version is v13.2.0

NodeJS is caching results of scripts execution from `require()` (also known as require cache). You should clear this cache. Maybe this answer will help you: [node.js require() cache - possible to invalidate?](https://stackoverflow.com/a/11477602/16048617) — koloml, Oct 21 '21 at 12:02
Might this work for your case? https://stackoverflow.com/q/24666696/15325967 — insyri, Oct 21 '21 at 12:03
@insyri he want to reload commands without reloading application at all. So he should clear the cache in that case and reload commands using `require` again. — koloml, Oct 21 '21 at 12:04
Ah I see, I thought the goal specifically was to update the commands remotely. — insyri, Oct 21 '21 at 12:13
@koloml It helped, but is there any way to get commands from `client.commands` and update them one by one, or maybe get commands using fs? (I have no idea how to do it using fs because I have category folders in `commands` folder) — MegaMix_Craft, Oct 21 '21 at 12:23

score 2 · Accepted Answer · answered Oct 21 '21 at 12:41

Using this function deletes the cache corresponding to the module/file and gets the updated version:

function requireUncached(module) {
    delete require.cache[require.resolve(module)];
    return require(module);
}

Now, to require the files, just replace require with requireUncached.

You might however need to update on each event, to prevent it being updated late

client.on("messageCreate", msg => {
  client.commands.clear();
  const files = fs.readdirSync("./commands") //read commands folder
  const folders = files.filter(f => !f.includes(".")) //get category folders
  for (const folder of folders) {
    const cmdFiles = fs.readdirSync(`./commands/${folder}`).filter(f => f.endsWith(".js")) //get cmd files in each folder
    for (const file of cmdFiles) {
      const f = requireUncached(`./commands/${folder}/${file}`) //require the file "uncached"
      client.commands.set(f.name, f)
    }
  }
})

There might be more efficient ways to do this, making sure that you don't have to update on each event

Update ALL bot commands without reloading it (without "node ." or nodemon)

1 Answers1