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Fix synapse.config module "read" command (#11145)

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`synapse.config.__main__` has the possibility to read a config item. This can be used to conveniently also validate the config is valid before trying to start Synapse.

 The "read" command broke in https://github.com/matrix-org/synapse/pull/10916 as it now requires passing in "server.server_name" for example.

 Also made the read command optional so one can just call this with just the confirm file reference and get a "Config parses OK" if things are ok.

Signed-off-by: Jason Robinson <jasonr@matrix.org>
Co-authored-by: Brendan Abolivier <babolivier@matrix.org>
This commit is contained in:
Jason Robinson 2021-10-22 13:00:52 +03:00 • committed by GitHub
parent b0f03aeb6a
commit b9ce53e878
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5 changed files with 138 additions and 68 deletions
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70
tests/config/test_load.py
View file

@ -1,4 +1,5 @@
# Copyright 2016 OpenMarket Ltd
# Copyright 2021 The Matrix.org Foundation C.I.C.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
@ -11,43 +12,30 @@
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os.path
import shutil
import tempfile
from contextlib import redirect_stdout
from io import StringIO
import yaml
from synapse.config import ConfigError
from synapse.config.homeserver import HomeServerConfig
from tests import unittest
from tests.config.utils import ConfigFileTestCase
class ConfigLoadingTestCase(unittest.TestCase):
def setUp(self):
self.dir = tempfile.mkdtemp()
self.file = os.path.join(self.dir, "homeserver.yaml")
def tearDown(self):
shutil.rmtree(self.dir)
class ConfigLoadingFileTestCase(ConfigFileTestCase):
def test_load_fails_if_server_name_missing(self):
self.generate_config_and_remove_lines_containing("server_name")
with self.assertRaises(ConfigError):
HomeServerConfig.load_config("", ["-c", self.file])
HomeServerConfig.load_config("", ["-c", self.config_file])
with self.assertRaises(ConfigError):
HomeServerConfig.load_or_generate_config("", ["-c", self.file])
HomeServerConfig.load_or_generate_config("", ["-c", self.config_file])
def test_generates_and_loads_macaroon_secret_key(self):
self.generate_config()
with open(self.file) as f:
with open(self.config_file) as f:
raw = yaml.safe_load(f)
self.assertIn("macaroon_secret_key", raw)
config = HomeServerConfig.load_config("", ["-c", self.file])
config = HomeServerConfig.load_config("", ["-c", self.config_file])
self.assertTrue(
hasattr(config.key, "macaroon_secret_key"),
"Want config to have attr macaroon_secret_key",
@ -58,7 +46,7 @@ class ConfigLoadingTestCase(unittest.TestCase):
"was: %r" % (config.key.macaroon_secret_key,)
)
config = HomeServerConfig.load_or_generate_config("", ["-c", self.file])
config = HomeServerConfig.load_or_generate_config("", ["-c", self.config_file])
self.assertTrue(
hasattr(config.key, "macaroon_secret_key"),
"Want config to have attr macaroon_secret_key",
@ -71,9 +59,9 @@ class ConfigLoadingTestCase(unittest.TestCase):
def test_load_succeeds_if_macaroon_secret_key_missing(self):
self.generate_config_and_remove_lines_containing("macaroon")
config1 = HomeServerConfig.load_config("", ["-c", self.file])
config2 = HomeServerConfig.load_config("", ["-c", self.file])
config3 = HomeServerConfig.load_or_generate_config("", ["-c", self.file])
config1 = HomeServerConfig.load_config("", ["-c", self.config_file])
config2 = HomeServerConfig.load_config("", ["-c", self.config_file])
config3 = HomeServerConfig.load_or_generate_config("", ["-c", self.config_file])
self.assertEqual(
config1.key.macaroon_secret_key, config2.key.macaroon_secret_key
)
@ -87,15 +75,15 @@ class ConfigLoadingTestCase(unittest.TestCase):
["enable_registration: true", "disable_registration: true"]
)
# Check that disable_registration clobbers enable_registration.
config = HomeServerConfig.load_config("", ["-c", self.file])
config = HomeServerConfig.load_config("", ["-c", self.config_file])
self.assertFalse(config.registration.enable_registration)
config = HomeServerConfig.load_or_generate_config("", ["-c", self.file])
config = HomeServerConfig.load_or_generate_config("", ["-c", self.config_file])
self.assertFalse(config.registration.enable_registration)
# Check that either config value is clobbered by the command line.
config = HomeServerConfig.load_or_generate_config(
"", ["-c", self.file, "--enable-registration"]
"", ["-c", self.config_file, "--enable-registration"]
)
self.assertTrue(config.registration.enable_registration)
@ -104,33 +92,5 @@ class ConfigLoadingTestCase(unittest.TestCase):
self.add_lines_to_config(["enable_metrics: true"])
# The default Metrics Flags are off by default.
config = HomeServerConfig.load_config("", ["-c", self.file])
config = HomeServerConfig.load_config("", ["-c", self.config_file])
self.assertFalse(config.metrics.metrics_flags.known_servers)
def generate_config(self):
with redirect_stdout(StringIO()):
HomeServerConfig.load_or_generate_config(
"",
[
"--generate-config",
"-c",
self.file,
"--report-stats=yes",
"-H",
"lemurs.win",
],
)
def generate_config_and_remove_lines_containing(self, needle):
self.generate_config()
with open(self.file) as f:
contents = f.readlines()
contents = [line for line in contents if needle not in line]
with open(self.file, "w") as f:
f.write("".join(contents))
def add_lines_to_config(self, lines):
with open(self.file, "a") as f:
for line in lines:
f.write(line + "\n")