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Clean up some LoggingContext stuff (#7120)

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* Pull Sentinel out of LoggingContext

... and drop a few unnecessary references to it

* Factor out LoggingContext.current_context

move `current_context` and `set_context` out to top-level functions.

Mostly this means that I can more easily trace what's actually referring to
LoggingContext, but I think it's generally neater.

* move copy-to-parent into `stop`

this really just makes `start` and `stop` more symetric. It also means that it
behaves correctly if you manually `set_log_context` rather than using the
context manager.

* Replace `LoggingContext.alive` with `finished`

Turn `alive` into `finished` and make it a bit better defined.
This commit is contained in:
Richard van der Hoff 2020-03-24 14:45:33 +00:00 • committed by GitHub
parent 1fcf9c6f95
commit 39230d2171
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24 changed files with 232 additions and 222 deletions
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22
tests/util/test_logcontext.py
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@ -2,8 +2,10 @@ import twisted.python.failure
from twisted.internet import defer, reactor
from synapse.logging.context import (
SENTINEL_CONTEXT,
LoggingContext,
PreserveLoggingContext,
current_context,
make_deferred_yieldable,
nested_logging_context,
run_in_background,
@ -15,7 +17,7 @@ from .. import unittest
class LoggingContextTestCase(unittest.TestCase):
def _check_test_key(self, value):
self.assertEquals(LoggingContext.current_context().request, value)
self.assertEquals(current_context().request, value)
def test_with_context(self):
with LoggingContext() as context_one:
@ -41,7 +43,7 @@ class LoggingContextTestCase(unittest.TestCase):
self._check_test_key("one")
def _test_run_in_background(self, function):
sentinel_context = LoggingContext.current_context()
sentinel_context = current_context()
callback_completed = [False]
@ -71,7 +73,7 @@ class LoggingContextTestCase(unittest.TestCase):
# make sure that the context was reset before it got thrown back
# into the reactor
try:
self.assertIs(LoggingContext.current_context(), sentinel_context)
self.assertIs(current_context(), sentinel_context)
d2.callback(None)
except BaseException:
d2.errback(twisted.python.failure.Failure())
@ -108,7 +110,7 @@ class LoggingContextTestCase(unittest.TestCase):
async def testfunc():
self._check_test_key("one")
d = Clock(reactor).sleep(0)
self.assertIs(LoggingContext.current_context(), LoggingContext.sentinel)
self.assertIs(current_context(), SENTINEL_CONTEXT)
await d
self._check_test_key("one")
@ -129,14 +131,14 @@ class LoggingContextTestCase(unittest.TestCase):
reactor.callLater(0, d.callback, None)
return d
sentinel_context = LoggingContext.current_context()
sentinel_context = current_context()
with LoggingContext() as context_one:
context_one.request = "one"
d1 = make_deferred_yieldable(blocking_function())
# make sure that the context was reset by make_deferred_yieldable
self.assertIs(LoggingContext.current_context(), sentinel_context)
self.assertIs(current_context(), sentinel_context)
yield d1
@ -145,14 +147,14 @@ class LoggingContextTestCase(unittest.TestCase):
@defer.inlineCallbacks
def test_make_deferred_yieldable_with_chained_deferreds(self):
sentinel_context = LoggingContext.current_context()
sentinel_context = current_context()
with LoggingContext() as context_one:
context_one.request = "one"
d1 = make_deferred_yieldable(_chained_deferred_function())
# make sure that the context was reset by make_deferred_yieldable
self.assertIs(LoggingContext.current_context(), sentinel_context)
self.assertIs(current_context(), sentinel_context)
yield d1
@ -189,14 +191,14 @@ class LoggingContextTestCase(unittest.TestCase):
reactor.callLater(0, d.callback, None)
await d
sentinel_context = LoggingContext.current_context()
sentinel_context = current_context()
with LoggingContext() as context_one:
context_one.request = "one"
d1 = make_deferred_yieldable(blocking_function())
# make sure that the context was reset by make_deferred_yieldable
self.assertIs(LoggingContext.current_context(), sentinel_context)
self.assertIs(current_context(), sentinel_context)
yield d1