time_ufoLib2_json.py

import logging
import shutil
import os

from fontTools.misc.loggingTools import Timer
import orjson

from ufoLib2.converters import json_converter as c
from ufoLib2.objects import Font

timer = Timer(logging.getLogger())
logging.basicConfig(level=logging.DEBUG)

# timing Font.save() on fresh new path, without shutil.rmtree implied by overwrite=True
if os.path.exists("/tmp/NotoSans-Regular.ufo"):
    shutil.rmtree("/tmp/NotoSans-Regular.ufo")

with timer("open + save ufoLib2.Font from/to XML UFO (total time)"):
    with timer("parse ufoLib2.Font from XML UFO (non lazy)"):
        font = Font.open("NotoSans-Regular.ufo", lazy=False)

    with timer("save Font to XML UFO"):
        font.save("/tmp/NotoSans-Regular.ufo")

with timer("dump + load ufoLib2.Font to/from json (total time)"):
    with timer("dump ufoLib2.Font to json (total time)"):
        with timer("unstructure ufoLib2.Font with cattrs"):
            font_data = c.unstructure(font)

        with timer("serialize unstructured font data to json with orjson"):
            json_data = orjson.dumps(font_data)

        with timer("write out json string to disk"):
            with open("notosans-regular.json", "wb") as f:
                f.write(json_data)

    with timer("parse ufoLib2.Font from json (total time)"):
        with timer("reading json string from disk"):
            with open("notosans-regular.json", "rb") as f:
                json_data = f.read()

        with timer("parsing raw font data from json string with orjson"):
            font_data = orjson.loads(json_data)

        with timer("structuring ufoLib2.Font from raw font data with cattrs"):
            font2 = c.structure(font_data, Font)

assert font == font2