slpkg/slpkg/downloader.py
Dimitris Zlatanidis 32f3112d0d Updated for slots
2023-04-08 19:57:26 +03:00

69 lines
2.2 KiB
Python

#!/usr/bin/python3
# -*- coding: utf-8 -*-
from typing import Union
from pathlib import Path
from urllib.parse import unquote
from multiprocessing import Process
from slpkg.configs import Configs
from slpkg.utilities import Utilities
class Downloader(Configs):
def __init__(self, path: Union[str, Path], urls: list, flags: list):
__slots__ = 'path', 'urls', 'flags'
super(Configs, self).__init__()
self.path = path
self.urls: list = urls
self.flags: list = flags
self.utils = Utilities()
self.flag_parallel: list = ['-P', '--parallel']
def download(self) -> None:
""" Starting the processing for downloading. """
process: list = []
if self.parallel_downloads or self.utils.is_option(self.flag_parallel, self.flags):
for url in self.urls:
p1 = Process(target=self.tools, args=(url,))
process.append(p1)
p1.start()
for proc in process:
proc.join()
else:
for url in self.urls:
self.tools(url)
def tools(self, url: str) -> None:
""" Downloader tools wget, curl and lftp. """
command: str = ''
filename: str = url.split('/')[-1]
if self.downloader in ['wget', 'wget2']:
command: str = f'{self.downloader} {self.wget_options} --directory-prefix={self.path} "{url}"'
elif self.downloader == 'curl':
command: str = f'{self.downloader} {self.curl_options} "{url}" --output {self.path}/{filename}'
elif self.downloader == 'lftp':
command: str = f'{self.downloader} {self.lftp_get_options} {url} -o {self.path}'
else:
self.utils.raise_error_message(f"Downloader '{self.downloader}' not supported")
self.utils.process(command)
self.check_if_downloaded(url)
def check_if_downloaded(self, url: str) -> None:
""" Checks if the file downloaded. """
url: str = unquote(url)
file: str = url.split('/')[-1]
path_file = Path(self.path, file)
if not path_file.exists():
self.utils.raise_error_message(f"Download the '{file}' file")