Minecraft Assets Extractor

MinecraftAssetsExtractor.py

#!/usr/bin/env python3
#
# Minecraft Assets Extractor
# by JoeBlakeB
# github.com/JoeBlakeB
#
# Example command:
# Extract.py C:\Users\<user>\AppData\Roaming\.minecraft\assets "C:\Users\<user>\Documents\Minecraft Assets" 1.16
# 

import json
import os
import sys
import shutil

if "help" in sys.argv or "-help" in sys.argv or "--help" in sys.argv:
    print("Minecraft Assets Extractor")
    print(" by JoeBlakeB (github.com/JoeBlakeB)")
    print("Interactive Mode:")
    print(" " + sys.argv[0])
    print("CLI Mode:")
    print(" Current Assets Dir - " + sys.argv[0] + " [Version]")
    print(" Specify Assets Dir - " + sys.argv[0] + " [AssetsDir] [Version]")
    print(" Specify All Dirs   - " + sys.argv[0] + " [AssetsDir] [ExtractDir] [Version]")
    exit()

if len(sys.argv) >= 2:
    if len(sys.argv) == 2:
        assetsDir = "."
    else:
        assetsDir = sys.argv[1]
else:
    assetsDir = input("Where is the assets dir? (Default: .) ")
    if assetsDir == "":
        assetsDir = "."

if len(sys.argv) >= 2:
    if len(sys.argv) < 4:
        extractDir = "./Extracted/"
    else:
        extractDir = sys.argv[2]
else:
    extractDir = input("Where do you want to extract to? (Default: ./Extracted/) ")
    if extractDir == "":
        extractDir = "./Extracted/"

try:
    versions = os.listdir(os.path.join(assetsDir + "/indexes"))
except FileNotFoundError as e:
    print(e)
    exit()

if len(sys.argv) >= 2:
    version = sys.argv[-1]
else:
    version = input("What version do you want to extract? ")

if version[:-5] != ".json":
    version += ".json"
if version not in versions:
    print("Could not find version", version)
    exit()


indexFile = open(os.path.join(assetsDir, "indexes", version))
index = indexFile.read()
indexFile.close()

objects = json.loads(index)["objects"]

for file in list(objects.keys()):
    fileHash = objects[file]["hash"]
    fileHash = os.path.join(assetsDir, "objects/" + fileHash[:2] + "/" + fileHash)
    
    os.makedirs(os.path.join(extractDir, *file.split("/")[:-1]), exist_ok=True)
    shutil.copyfile(fileHash, os.path.join(extractDir, file))