43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
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const fs = require('fs')
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const request = require('request')
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const path = require('path')
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var mkpath = require('mkdirp');
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function Asset(from, to, size){
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this.from = from
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this.to = to
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this.size = size
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}
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exports.getMojangAssets = function(version, basePath){
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const name = version + '.json'
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const indexURL = 'https://s3.amazonaws.com/Minecraft.Download/indexes/' + name
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const resourceURL = 'http://resources.download.minecraft.net/'
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const localPath = path.join(basePath, 'assets')
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const indexPath = path.join(localPath, 'indexes')
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const objectPath = path.join(localPath, 'objects')
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request.head(indexURL, function (err, res, body) {
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console.log('Downloading ' + version + ' asset index.')
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mkpath.sync(indexPath)
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let stream = request(indexURL).pipe(fs.createWriteStream(path.join(indexPath, name)))
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stream.on('finish', function() {
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let data = JSON.parse(fs.readFileSync(path.join(indexPath, name), 'utf-8'))
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let assetArr = []
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Object.keys(data['objects']).forEach(function(key, index){
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let ob = data['objects'][key]
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let hash = String(ob['hash'])
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let assetName = path.join(hash.substring(0, 2), hash)
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let urlName = hash.substring(0, 2) + "/" + hash
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let ast = new Asset(resourceURL + urlName, path.join(objectPath, assetName), ob['size'])
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assetArr.push(ast)
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})
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assetArr.forEach(function(item, index){
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mkpath.sync(path.join(item.to, ".."))
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console.log("downloading asset from " + item.from + " to " + item.to)
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request(item.from).pipe(fs.createWriteStream(item.to))
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})
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})
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})
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}
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