import zipfile, os, re, shutil

jar = r'e:\MCStudioDownload\work\3027246179@qq.com\Cpp\AddOn\309c2d420bc84ee986db9cdd070ff02a\_sa_hanhua_out\sa_lib-forge-1.20.1-1.0.1.jar'

with zipfile.ZipFile(jar) as z:
    infos = z.infolist()
    data = {i.filename: z.read(i) for i in infos}
    meta = 'META-INF/mods.toml'
    text = data[meta].decode('utf-8')

new_text = re.sub(
    r"description\s*=\s*'''[\s\S]*?'''",
    "description='''\n我们所有幸存者军火库模组的公共库。\n'''",
    text,
    count=1,
)
print('changed:', new_text != text)
print(new_text[:400])
if new_text != text:
    data[meta] = new_text.encode('utf-8')
    tmp = jar + '.tmp'
    with zipfile.ZipFile(tmp, 'w', zipfile.ZIP_DEFLATED) as z:
        for i in infos:
            z.writestr(i, data[i.filename])
    shutil.move(tmp, jar)
    print('jar updated.')

# verify
with zipfile.ZipFile(jar) as z:
    t = z.read(meta).decode('utf-8')
    for line in t.splitlines():
        if 'displayName' in line or 'description' in line:
            print('VERIFY:', line.strip())
    print('entries=', len(z.namelist()), 'testzip=', z.testzip())