Function static_replace_in_file

cpython-windows/build.py:293–311

Replace occurrences of a string in a file. The updated file contents are written out in place.

(p: pathlib.Path, search, replace)

def static_replace_in_file(p: pathlib.Path, search, replace):
    """Replace occurrences of a string in a file.

    The updated file contents are written out in place.
    """

    with p.open("rb") as fh:
        data = fh.read()

    # Build should be as deterministic as possible. Assert that wanted changes
    # actually occur.
    if search not in data:
        raise NoSearchStringError("search string (%s) not in %s" % (search, p))

    log("replacing `%s` with `%s` in %s" % (search, replace, p))
    data = data.replace(search, replace)

    with p.open("wb") as fh:
        fh.write(data)


def apply_source_patch(cpython_source_path: pathlib.Path, patch_path: pathlib.Path):