import os import shutil import requests import zipfile from io import BytesIO from pathlib import Path # Minecraft installation folder. minecraft_dir = os.path.join(os.getenv('APPDATA'), ".minecraft") # Forge variables. default_forge_version = "1.12.2-forge-14.23.5.2859" forge_version = input(f"Enter Forge version (default: {default_forge_version}), leave empty to choose default: ") or default_forge_version forge_dir = os.path.join(minecraft_dir, f"versions/{forge_version}") forge_url = f"https://git.jisoonet.com/publicprojects/{forge_version}/-/archive/main/{forge_version}-main.zip" # Forge libraries variables. forge_libraries_version = forge_version.replace("forge-", "") forge_libraries_dir = os.path.join(minecraft_dir, f"libraries/net/minecraftforge/forge/{forge_libraries_version}") forge_libraries_url = f"https://git.jisoonet.com/publicprojects/{forge_libraries_version}/-/archive/main/{forge_libraries_version}-main.zip" # Backup folder for mods. mods_backup_dir = os.path.join(minecraft_dir, "mods-backup") # Modpack variables. default_modpack_name = "apocaz-modpack" modpack_name = input(f"Enter Modpack name (default: {default_modpack_name}), leave empty to choose default: ") or default_modpack_name modpack_dir = os.path.join(minecraft_dir, "mods") modpack_url = f"https://git.jisoonet.com/publicprojects/{modpack_name}/-/archive/main/{modpack_name}-main.zip" # Function to check for the prescence of Minecraft installation folder. def check_minecraft_installation(minecraft_dir): print("Checking for existing Minecraft installation...") if not Path(minecraft_dir).exists(): print("Error: Minecraft not found. Please install Minecraft first.") else: print("Minecraft is already installed.") # Installs forge files and places them in the correct version folder. def install_forge(forge_dir, forge_url): print("Checking for existing Forge installation...") if not Path(forge_dir).exists(): print("Forge not found, beginning installation...") os.makedirs(forge_dir) try: print("Downloading Forge...") response = requests.get(forge_url) if response.status_code == 200: with zipfile.ZipFile(BytesIO(response.content)) as z: print("Extracting Forge...") common_prefix = os.path.commonprefix(z.namelist()) for file_info in z.infolist(): target_path = os.path.join(forge_dir, file_info.filename[len(common_prefix):]) if file_info.filename.endswith('/'): os.makedirs(target_path, exist_ok=True) else: with z.open(file_info) as source, open(target_path, 'wb') as target: shutil.copyfileobj(source, target) print("Forge installed successfully.") else: print("Error downloading Forge. Please check the URL or your internet connection.") except Exception as e: print(f"An error occurred during Forge installation: {e}") else: print("Forge is already installed.") # Installs forge files and places them in the correct version folder. def install_forge_libraries(forge_libraries_dir, forge_libraries_url): print("Checking for existing Forge libraries installation...") if not Path(forge_libraries_dir).exists(): print("Forge libraries not found, beginning download and installation...") os.makedirs(forge_libraries_dir) try: print("Downloading Forge libraries...") response = requests.get(forge_libraries_url) if response.status_code == 200: with zipfile.ZipFile(BytesIO(response.content)) as z: print("Extracting Forge libraries...") common_prefix = os.path.commonprefix(z.namelist()) for file_info in z.infolist(): target_path = os.path.join(forge_libraries_dir, file_info.filename[len(common_prefix):]) if file_info.filename.endswith('/'): os.makedirs(target_path, exist_ok=True) else: with z.open(file_info) as source_file, open(target_path, 'wb') as dest_file: shutil.copyfileobj(source_file, dest_file) print("Forge libraries installed successfully.") else: print("Error downloading Forge libraries. Please check the URL or your internet connection.") except Exception as e: print(f"An error occurred during Forge libraries installation: {e}") else: print("Forge libraries are already installed.") # Backups the mods from the mods folder to the backup folder. def backup_mods(modpack_dir, mods_backup_dir): print("Backing up existing mods...") if Path(modpack_dir).exists(): os.makedirs(mods_backup_dir, exist_ok=True) for item in os.listdir(modpack_dir): source_path = os.path.join(modpack_dir, item) destination_path = os.path.join(mods_backup_dir, item) if not os.path.exists(destination_path): shutil.move(source_path, destination_path) else: os.remove(source_path) print(f"Duplicate found, not moving '{item}'.") print(f"Mods backed up to '{mods_backup_dir}'.") else: print("No mods directory found. No backup required.") def install_modpack(modpack_url, modpack_dir): print("Downloading modpack...") try: response = requests.get(modpack_url) if response.status_code == 200: print("Extracting modpack...") modpack_zip = zipfile.ZipFile(BytesIO(response.content)) for member in modpack_zip.namelist(): filename = os.path.basename(member) if not filename: continue source = modpack_zip.open(member) target = open(os.path.join(modpack_dir, filename), "wb") with source, target: shutil.copyfileobj(source, target) print("Modpack installed successfully.") else: print("Failed to download modpack. Please check the URL or your internet connection.") except Exception as e: print(f"An error occurred during modpack installation: {e}") # Entry point of the script. def main(): try: check_minecraft_installation(minecraft_dir) install_forge(forge_dir, forge_url) install_forge_libraries(forge_libraries_dir, forge_libraries_url) backup_mods(modpack_dir, mods_backup_dir) install_modpack(modpack_url, modpack_dir) except KeyboardInterrupt: print("\033[91m\nSession ended by user.\033[0m") except Exception as e: print(f"\033[91m\nAn unexpected error occurred: {e}\033[0m") finally: input("\033[94mPress Enter to exit...\033[0m") if __name__ == "__main__": main()