def env(key, default="", type=None):
"Extract an environment variable for use in configuration"
key = "STRUT_" + key
# First check an internal cache, so we can `pop` multiple times
# without actually losing the value.
try:
rv = env._cache[key]
except KeyError:
# We don't want/can't pop off env variables when
# uwsgi is in autoreload mode, otherwise it'll have an empty
# env on reload
if uwsgi_options.get("py-autoreload") == b"1":
fn = os.environ.__getitem__
else:
fn = os.environ.pop
try:
rv = fn(key)
env._cache[key] = rv
except KeyError:
rv = default
if type is None:
type = types.convert_type(_type(default))
return type(rv)
def check_threads():
try:
from uwsgi import opt
except ImportError:
return
if str(opt.get('enable-threads', '0')).lower() in ('false', 'off', 'no', '0'):
from warnings import warn
warn(Warning('We detected the use of uwsgi with disabled threads. '
'This will cause issues with the transport you are '
'trying to use. Please enable threading for uwsgi. '
'(Enable the "enable-threads" flag).'))
def check_threads():
try:
from uwsgi import opt
except ImportError:
return
if str(opt.get('enable-threads',
'0')).lower() in ('false', 'off', 'no', '0'):
from warnings import warn
warn(
Warning('We detected the use of uwsgi with disabled threads. '
'This will cause issues with the transport you are '
'trying to use. Please enable threading for uwsgi. '
'(Enable the "enable-threads" flag).'))
def check_thread_support():
try:
from uwsgi import opt
except ImportError:
return
# When `threads` is passed in as a uwsgi option,
# `enable-threads` is implied on.
if "threads" in opt:
return
if str(opt.get("enable-threads",
"0")).lower() in ("false", "off", "no", "0"):
from warnings import warn
warn(
Warning("We detected the use of uwsgi with disabled threads. "
"This will cause issues with the transport you are "
"trying to use. Please enable threading for uwsgi. "
'(Enable the "enable-threads" flag).'))
import warnings
running_uwsgi = False
threads_enabled = False
# From docs (https://uwsgi-docs.readthedocs.io/en/latest/PythonModule.html):
# > The uWSGI server automagically adds a uwsgi module into your Python
# apps.
# > This is useful for configuring the uWSGI server, use its internal
# functions and get statistics. Also useful for detecting whether you're
# actually running under uWSGI; if you attempt to import uwsgi and
# receive an ImportError you're not running under uWSGI.
try:
# > uwsgi.opt
# > The current configuration options, including any custom placeholders.
from uwsgi import opt
running_uwsgi = True
threads_enabled = opt.get('enable-threads', False)
except ImportError:
pass
__all__ = ('warn_if_running_uwsgi_without_threads', )
def warn_if_running_uwsgi_without_threads():
if running_uwsgi and not threads_enabled:
warnings.warn(('Bugsnag cannot run asynchronously under uWSGI' +
' without enabling thread support. Please run uwsgi' +
' with --enable-threads'), RuntimeWarning)
