hdiffapply.py

from sys import argv
import os
import subprocess
import json
from shutil import which

# Made by nie0 :fuckhadros:
# v2

if len(argv) != 2:
    print('Usage: py hdiffapply.py [game_folder]')
    exit()

game_folder = argv[1]

delete_files_path = os.path.join(game_folder, 'deletefiles.txt')
print(delete_files_path)
if not os.path.exists(delete_files_path):
    print('deletefiles.txt doesnt exist in game directory!')
    exit()

hdiff_map_path = os.path.join(game_folder, 'hdiffmap.json')
if not os.path.exists(hdiff_map_path):
    print('hdiffmap.json doesnt exist in game directory!')
    exit()

delete_paths = open(delete_files_path, 'r')
delete_files = delete_paths.read().split('\n')
for file in delete_files:
    if len(file) < 1:
        print(file)
        continue

    actualPath = os.path.join(game_folder, file)
    print(actualPath)
    print(os.path.exists(actualPath))
    
    if os.path.exists(actualPath):
        print(f'Deleting {actualPath}')
        os.remove(actualPath)

# Also doesnt work in vs code terminal :)
hzpatchz = which('hpatchz')
if hzpatchz is None:
    print('HDiffPatch not found in system path!\nTry to open cmd again or reboot\nGithub link: https://github.com/sisong/HDiffPatch')
    exit()

hdiff_json = open(hdiff_map_path)
data = json.load(hdiff_json)

#.\hpatchz.exe source_file_name patch_file_name target_file_name
for entry in data['diff_map']:
    source_file_name = os.path.join(game_folder, entry['source_file_name'])
    patch_file_name = os.path.join(game_folder, entry['patch_file_name'])
    target_file_name = os.path.join(game_folder, entry['target_file_name'])
    
    # Check if files exist
    if not os.path.exists(source_file_name):
        print(f"Source file missing: {source_file_name}")
        continue
    if not os.path.exists(patch_file_name):
        print(f"Patch file missing: {patch_file_name}")
        continue
    
    print(f"Applying patch: {patch_file_name} -> {target_file_name} using {source_file_name}")
    subprocess.run([hzpatchz, "-f", source_file_name, patch_file_name, target_file_name]) # -f to force overwriting