Xdeltapatcher ((install)) ★ 【LATEST】

# Write patch file with open(patch_file, 'wb') as f_patch: # Header: magic bytes + old size + new size f_patch.write(b'XD3P') f_patch.write(old_len.to_bytes(8, 'little')) f_patch.write(new_len.to_bytes(8, 'little')) for op in patch_ops: if op[0] == 'COPY': f_patch.write(b'\x01') # opcode COPY f_patch.write(op[1].to_bytes(8, 'little')) # position f_patch.write(op[2].to_bytes(4, 'little')) # length else: # ADD f_patch.write(b'\x02') # opcode ADD f_patch.write(bytes([op[1]])) # single byte

print(f"Patch created: {patch_file}") print(f"Operations: {len(patch_ops)}") if == " main ": if len(sys.argv) != 4: print("Usage: python make_xdelta_patch.py <old_file> <new_file> <patch_file>") sys.exit(1) create_patch(sys.argv[1], sys.argv[2], sys.argv[3]) 2. Patch applicator (reconstructs new file from old + patch) # xdeltapatcher.py import sys def apply_patch(old_file, patch_file, output_file): with open(old_file, 'rb') as f_old: old_data = f_old.read() xdeltapatcher

old_len = len(old_data) new_len = len(new_data) # Write patch file with open(patch_file, 'wb') as