mcrp-util/lib/pack.js

A one-stop shop for all things Resource Pack, the Texture Pack replacement since 1.6-pre

const Zip = require('node-stream-zip')
const { basename, join } = require('path')
const { readdir } = require('fs')

const { printPack, notice } = require('./printers')

const _INTERNAL = require('../_internal.json')

module.exports.readPack = async function(path) {
  return new Promise((resolve, reject) => {
    let filename = basename(path)
    if (filename.substring(filename.length - 3) !== 'zip') {
      reject('Non-zip Resource Packs are not currently supported.')
    }

    {
      let zip = new Zip({
        file: path,
        storeEntries: true
      })
      zip.on('ready', () => {
        let mcmeta = JSON.parse(zip.entryDataSync('pack.mcmeta').toString('utf8'))
        let output = {
          // Take the archive name, drop the extension
          name: basename(path).substring(0, basename(path).length - 4),
          // Remove color formatting
          description: mcmeta.pack.description.replace(/§\d/g, ''),
          // Get the version range the pack was designed for
          version: _INTERNAL.definitions.packversions[mcmeta.pack.pack_format.toString()]
        }

        resolve(output)
      })
    }
  })
}

module.exports.listPacks = async function(mcpath) {
  let rpPath = join(mcpath, 'resourcepacks', '/')
  readdir(rpPath, {
    withFileTypes: true
  }, async (err, archives) => {
    if (err) throw err;

    let packCount = 0
    for (let i = 0; i < archives.length; i++) {
      let archive = archives[i]
      let pack = archive.name
      if (pack.endsWith('.zip')) {
        packCount ++
        let packpath = join(rpPath, pack)
        let pushval = await module.exports.readPack(packpath)
        printPack(pushval)
        console.log('')
      }
    }
    if (packCount === 0) {
      notice('No Resource Packs installed.')
    }
  })
}