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Add retry attempts to Requests downloader

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This commit is contained in:
rlaphoenix 2024-01-09 12:08:49 +00:00
parent fa3cee11b7
commit 552a0f13a5
1 changed files with 32 additions and 18 deletions
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50
devine/core/downloaders/requests.py
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@ -7,6 +7,11 @@ from requests import Session
from requests.cookies import RequestsCookieJar
from rich import filesize
from devine.core.constants import DOWNLOAD_CANCELLED
MAX_ATTEMPTS = 5
RETRY_WAIT = 2
def requests(
uri: Union[str, list[str]],
@ -59,26 +64,35 @@ def requests(
for url, out_path in uri:
out_path.parent.mkdir(parents=True, exist_ok=True)
stream = session.get(url, stream=True)
with open(out_path, "wb") as f:
written = 0
for chunk in stream.iter_content(chunk_size=1024):
download_size = len(chunk)
f.write(chunk)
written += download_size
if progress:
progress(advance=1)
attempts = 1
try:
stream = session.get(url, stream=True)
stream.raise_for_status()
with open(out_path, "wb") as f:
written = 0
for chunk in stream.iter_content(chunk_size=1024):
download_size = len(chunk)
f.write(chunk)
written += download_size
if progress:
progress(advance=1)
now = time.time()
time_since = now - last_speed_refresh
now = time.time()
time_since = now - last_speed_refresh
download_sizes.append(download_size)
if time_since > 5 or download_size < 1024:
data_size = sum(download_sizes)
download_speed = data_size / (time_since or 1)
progress(downloaded=f"{filesize.decimal(download_speed)}/s")
last_speed_refresh = now
download_sizes.clear()
download_sizes.append(download_size)
if time_since > 5 or download_size < 1024:
data_size = sum(download_sizes)
download_speed = data_size / (time_since or 1)
progress(downloaded=f"{filesize.decimal(download_speed)}/s")
last_speed_refresh = now
download_sizes.clear()
break
except Exception as e:
if DOWNLOAD_CANCELLED.is_set() or attempts == MAX_ATTEMPTS:
raise e
time.sleep(RETRY_WAIT)
attempts += 1
return 0