A rewrite of https://bpa.st/GBRPM

stpatch.py

import argparse
import pathlib
import sys

old_bytes = bytes([0x80, 0x79, 0x05, 0x00, 0x0f, 0x94, 0xc2])
new_bytes = bytes([0xc6, 0x41, 0x05, 0x01, 0xb2, 0x00, 0x90])


def main():
    parser = argparse.ArgumentParser(description="sublime text patcher")
    parser.add_argument("filename", help="path to sublime text binary")
    args = parser.parse_args()

    path = pathlib.Path(args.filename)
    try:
        buffer = path.read_bytes()
    except IOError as e:
        sys.exit(f"error: failed to open file: {e}")

    if old_bytes not in buffer:
        sys.exit('error: byte sequence not found')

    buffer = buffer.replace(old_bytes, new_bytes)

    path.rename(path.with_suffix('.orig'))
    path.write_bytes(buffer)
    print(f"{path} patched successfully!")


if __name__ == "__main__":
    main()