openflexure-microscope-server/openflexure_microscope/rescue/check_system.py
2020-11-06 16:59:43 +00:00

53 lines
1.6 KiB
Python

from urllib.request import urlopen
from urllib.error import URLError
import psutil
from .error_sources import WarningSource
def internet_on():
test_urls = (
'https://build.openflexure.org', # Bath server
'https://openflexure.org' # GitHub pages
)
for url in test_urls:
try:
urlopen(url, timeout=10)
# If any test passes, return True
return True
except URLError:
pass
# If no test passed, return False
return False
def main():
error_sources = []
# Check internet
if not internet_on():
error_sources.append(WarningSource(
"No internet connection detected. Updates may not be available."
))
# Check memory
mem = psutil.virtual_memory()
total_gb = mem.total / 1E9
if total_gb <= 1:
error_sources.append(WarningSource(
("Less than 1GB total memory available.",
"For small scans, or control from another device, this is usually fine.",
"\n More complex usage may require additional resources.")
))
# Check disks
data_partitions = [disk for disk in psutil.disk_partitions() if "rw" in disk.opts and disk.mountpoint != "/boot"]
for part in data_partitions:
usage = psutil.disk_usage(part.mountpoint)
if int(usage.percent) >= 90:
error_sources.append(WarningSource(
(f"Disk {part.device}, at {part.mountpoint} is {int(usage.percent)}% full.",
"Captures may fail to save soon.")
))
return error_sources