else/ThreadedDL/threaded_dl.py
Ethan Dalool 98667e75f3 else
2016-10-21 20:47:08 -07:00

75 lines
2.2 KiB
Python

import os
import sys
import threading
import time
sys.path.append('C:\\git\\else\\clipext'); import clipext
sys.path.append('C:\\git\\else\\downloady'); import downloady
def remove_finished(threads):
threads = [t for t in threads if t.is_alive()]
return threads
def download_thread(url, filename):
url = url.strip()
if url == '':
return
if os.path.exists(filename):
print('Skipping existing file "%s"' % filename)
return
print(' Starting "%s"' % filename)
downloady.download_file(url, filename, timeout=15)
print('+Finished "%s"' % filename)
def listget(li, index, fallback):
try:
return li[index]
except IndexError:
return fallback
def threaded_dl(urls, thread_count, filename_format=None):
threads = []
index_digits = len(str(len(urls)))
if filename_format is None:
filename_format = '{now}_{index}_{basename}'
filename_format = filename_format.replace('{index}', '{index:0%0dd}' % index_digits)
now = int(time.time())
for (index, url) in enumerate(urls):
while len(threads) == thread_count:
threads = remove_finished(threads)
time.sleep(0.1)
basename = downloady.basename_from_url(url)
extension = os.path.splitext(basename)[1]
filename = filename_format.format(
basename=basename,
extension=extension,
index=index,
now=now,
)
t = threading.Thread(target=download_thread, args=[url, filename])
t.daemon = True
threads.append(t)
t.start()
while len(threads) > 0:
threads = remove_finished(threads)
print('%d threads remaining\r' % len(threads), end='', flush=True)
time.sleep(0.1)
def main():
filename = sys.argv[1]
if os.path.isfile(filename):
f = open(filename, 'r')
with f:
urls = f.read()
else:
urls = clipext.resolve(filename)
urls = urls.replace('\r', '').split('\n')
thread_count = int(listget(sys.argv, 2, 4))
filename_format = listget(sys.argv, 3, None)
threaded_dl(urls, thread_count=thread_count, filename_format=filename_format)
if __name__ == '__main__':
main()