Python script for downloading and applying MusicBee Patches from https://getmusicbee.com/patches/

update-musicbee.py

from datetime import datetime, timezone
import os
from pathlib import Path
import subprocess
from urllib import request
from zipfile import ZipFile

from bs4 import BeautifulSoup
import pytz


def determine_whether_download_mb_zip(
    target_filename, datetime_save_path, mb_patch_url
):
    req = request.Request(mb_patch_url, headers={"User-Agent": "Mozilla/5.0"})
    with request.urlopen(req) as response:
        soup = BeautifulSoup(response, "lxml")
    mb_site_timestamp_str = (
        soup.find("a", href=target_filename).find_next("td").string.strip()
    )
    current_timestamp = datetime.strptime(mb_site_timestamp_str, "%Y-%m-%d %H:%M")

    if datetime_save_path.exists():
        with open(datetime_save_path, mode="r") as f:
            dl_date = f.readline()
        last_dl_timestamp = datetime.strptime(dl_date, "%Y-%m-%d %H:%M")
    else:
        last_dl_timestamp = datetime(1990, 10, 1)

    if current_timestamp > last_dl_timestamp:
        return True, mb_site_timestamp_str
    else:
        return False, mb_site_timestamp_str


def download_mb_zip(target_url, download_path):
    opener = request.build_opener()
    opener.addheaders = [("User-agent", "Mozilla/5.0")]
    request.install_opener(opener)
    request.urlretrieve(target_url, download_path)


def extract_updated_files(zipfile_path, mb_path):
    extract_cnt = 0
    JST = pytz.timezone("Asia/Tokyo")
    with ZipFile(zipfile_path, "r") as existing_zip:
        for info in existing_zip.infolist():
            if not info.is_dir():  # file
                zip_update_datetime = datetime(
                    *info.date_time, tzinfo=timezone.utc
                ).astimezone(JST)
                zip_update_timestamp = zip_update_datetime.timestamp()
                file_mb_path = Path(mb_path / info.filename)
                existing_datetime = (
                    datetime.fromtimestamp(os.stat(file_mb_path).st_mtime, JST)
                    if file_mb_path.exists()
                    else None
                )

                if (existing_datetime is None) or (
                    zip_update_datetime > existing_datetime
                ):
                    existing_zip.extract(info.filename, mb_path)
                    os.utime(file_mb_path, (zip_update_timestamp, zip_update_timestamp))
                    print(info.filename, existing_datetime, "->", zip_update_datetime)
                    extract_cnt += 1
            else:
                dir_mb_path = Path(mb_path / info.filename)
                if not dir_mb_path.exists():
                    dir_mb_path.mkdir()
    return extract_cnt


tmp_dir_path = Path(r"C:/tmp/")
datetime_save_path = tmp_dir_path / r"mb_last_download_datetime.txt"
download_path = tmp_dir_path / r"MusicBee_Patched.zip"
mb_path = Path(r"C:/Program Files (x86)/MusicBee/")
target_filename = r"MusicBee33_Patched.zip"
mb_patch_url = r"https://getmusicbee.com/patches/"

tmp_dir = Path(tmp_dir_path)
if not tmp_dir.exists():
    tmp_dir.mkdir()

should_download_file, timestamp_str = determine_whether_download_mb_zip(
    target_filename, datetime_save_path, mb_patch_url
)

if should_download_file:
    # Kill MusioBee
    subprocess.Popen(r"taskkill /im MusicBee.exe")
    print("Downloading the zip file.")
    download_mb_zip(mb_patch_url + target_filename, download_path)
    cnt = extract_updated_files(download_path, mb_path)
    if cnt == 0:
        print("All files are up-to-date.")
    else:
        print(f"Update/added {cnt} file(s).")

    with open(datetime_save_path, mode="w") as f:
        f.write(timestamp_str)

    # Restart MusicBee
    subprocess.Popen(r"C:\\Program Files (x86)\\MusicBee\\MusicBee.exe")
else:
    print("No need to download.")