Preprocess SVG files for svg_flutter

preprocess.py

#!/usr/bin/env python3
# coding=utf8

import re
import io
import os
import sys

regex = r"(<[^>]+href=\"#([^>]+)\"[^<]*>)[^\3]*(<[^>]+id=\"\2\"[^<]*>)"
pattern = re.compile(regex)


def process_file(path):
    f = open(path, "r", encoding="utf-8")
    content = f.read()
    f.close()

    while True:
        match = pattern.search(content, re.MULTILINE)
        if not match:
            break

        group_1 = match.group(1)
        group_3 = match.group(3)
        content = content.replace(group_1, '❎')
        content = content.replace(group_3, '✅')
        content = content.replace('❎', group_3)
        content = content.replace('✅', group_1)

    f = open(path, "w+", encoding="utf-8")
    f.write(content)
    f.close()


def process_dir(path):
    for child_path in os.listdir(path):
        process('%s/%s' % (path, child_path))


def process(path):
    if os.path.isfile(path):
        process_file(path)
    elif os.path.isdir(path):
        process_dir(path)


path = sys.argv[1]
process(path)