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version.py
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version.py
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# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: nil -*-
# vi: set ft=python sts=4 ts=4 sw=4 et:
"""Version CLI helpers."""
from datetime import datetime
from pathlib import Path
import requests
from aslprep import __version__
RELEASE_EXPIRY_DAYS = 14
DATE_FMT = "%Y%m%d"
def check_latest():
"""Determine whether this is the latest version."""
from packaging.version import InvalidVersion, Version
latest = None
date = None
outdated = None
cachefile = Path.home() / ".cache" / "aslprep" / "latest"
try:
cachefile.parent.mkdir(parents=True, exist_ok=True)
except OSError:
cachefile = None
if cachefile and cachefile.exists():
try:
latest, date = cachefile.read_text().split("|")
except Exception:
pass
else:
try:
latest = Version(latest)
date = datetime.strptime(date, DATE_FMT)
except (InvalidVersion, ValueError):
latest = None
else:
if abs((datetime.now() - date).days) > RELEASE_EXPIRY_DAYS:
outdated = True
if latest is None or outdated is True:
try:
response = requests.get(url="https://pypi.org/pypi/alprep/json", timeout=1.0)
except Exception:
response = None
if response and response.status_code == 200:
versions = [Version(rel) for rel in response.json()["releases"].keys()]
versions = [rel for rel in versions if not rel.is_prerelease]
if versions:
latest = sorted(versions)[-1]
else:
latest = None
if cachefile is not None and latest is not None:
try:
cachefile.write_text("|".join((latest, datetime.now().strftime(DATE_FMT))))
except Exception:
pass
return latest
def is_flagged():
"""Check whether current version is flagged."""
# https://raw.githubusercontent.com/pennlinc/aslprep/master/.versions.json
flagged = tuple()
try:
response = requests.get(
url="""\
https://raw.githubusercontent.com/pennlinc/aslprep/master/.versions.json""",
timeout=1.0,
)
except Exception:
response = None
if response and response.status_code == 200:
flagged = response.json().get("flagged", {}) or {}
if __version__ in flagged:
return True, flagged[__version__]
return False, None