INNER CODE UNIT · Python

patch_file

mumu-lhl/Ciyue · tools/patch_wpe_sandbox_paths.py:19

def patch_file(path: Path) -> bool:
    path = path.resolve()
    original = path.read_bytes()
    content = bytearray(original)
    modified = False

    for old, new in REPLACEMENTS:
        assert len(old) == len(new), f"Replacement length mismatch: {old!r} vs {new!r}"
        count = content.count(old)
        if count > 0:
            content = content.replace(old, new)
            modified = True
            print(f"Replaced {count} occurrence(s) of {old.decode('latin1', errors='replace')} in {path.name}")

    if modified:
        assert len(content) == len(original), f"File size changed for {path.name}"
        assert b"/usr/sbin/bwrap\0" not in content
        assert b"/usr/sbin/xdg-dbus-proxy\0" not in content

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