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# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# 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
json
from
pathlib
import
Path
import
re
import
shutil
import
textwrap
import
synthtool
as
s
import
synthtool
.
gcp
as
gcp
from
synthtool
.
languages
import
python
# ----------------------------------------------------------------------------
# Copy the generated client from the owl-bot staging directory
# ----------------------------------------------------------------------------
clean_up_generated_samples
=
True
# Load the default version defined in .repo-metadata.json.
default_version
=
json
.
load
(
open
(
".repo-metadata.json"
,
"rt"
)).
get
(
"default_version"
)
for
library
in
s
.
get_staging_dirs
(
default_version
):
if
clean_up_generated_samples
:
shutil
.
rmtree
(
"samples/generated_samples"
,
ignore_errors
=
True
)
clean_up_generated_samples
=
False
# DEFAULT SCOPES and SERVICE_ADDRESS are being used. so let's force them in.
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/*er/*client.py"
,
r"""DEFAULT_ENDPOINT = \"pubsub\.googleapis\.com\""""
,
"""
# The scopes needed to make gRPC calls to all of the methods defined in
# this service
_DEFAULT_SCOPES = (
'https://www.googleapis.com/auth/cloud-platform',
'https://www.googleapis.com/auth/pubsub',
)
SERVICE_ADDRESS = "pubsub.googleapis.com:443"
\"
""The default address of the service.
\"
""
\g<0>"""
,
)
# Modify GRPC options in transports.
count
=
s
.
replace
(
[
library
/
f"google/pubsub_
{
library
.
name
}
/services/*/transports/grpc*"
,
library
/
f"tests/unit/gapic/pubsub_
{
library
.
name
}
/*"
,
],
"options=\[.*?\]"
,
"""options=[
("grpc.max_send_message_length", -1),
("grpc.max_receive_message_length", -1),
("grpc.max_metadata_size", 4 * 1024 * 1024),
("grpc.keepalive_time_ms", 30000),
]"""
,
flags
=
re
.
MULTILINE
|
re
.
DOTALL
,
)
if
count
<
15
:
raise
Exception
(
"Expected replacements for gRPC channel options not made."
)
# If the emulator is used, force an insecure gRPC channel to avoid SSL errors.
clients_to_patch
=
[
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/schema_service/client.py"
,
]
err_msg
=
(
"Expected replacements for gRPC channel to use with the emulator not made."
)
count
=
s
.
replace
(
clients_to_patch
,
r"import os"
,
"import functools
\n
\g<0>"
)
if
count
<
len
(
clients_to_patch
):
raise
Exception
(
err_msg
)
count
=
s
.
replace
(
clients_to_patch
,
f"from \.transports\.base"
,
"
\n
import grpc
\n
\g<0>"
,
)
if
count
<
len
(
clients_to_patch
):
raise
Exception
(
err_msg
)
count
=
s
.
replace
(
clients_to_patch
,
r"Transport = type\(self\)\.get_transport_class\(cast\(str, transport\)\)"
,
"""\g<0>
emulator_host = os.environ.get("PUBSUB_EMULATOR_HOST")
if emulator_host:
if issubclass(Transport, type(self)._transport_registry["grpc"]):
channel = grpc.insecure_channel(target=emulator_host)
else:
channel = grpc.aio.insecure_channel(target=emulator_host)
Transport = functools.partial(Transport, channel=channel)
"""
,
)
if
count
<
len
(
clients_to_patch
):
raise
Exception
(
err_msg
)
# Monkey patch the streaming_pull() GAPIC method to disable pre-fetching stream
# results.
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/client.py"
,
(
r"# Wrap the RPC method.*\n"
r"\s+# and friendly error.*\n"
r"\s+rpc = self\._transport\._wrapped_methods\[self\._transport\.streaming_pull\]"
),
"""
# Wrappers in api-core should not automatically pre-fetch the first
# stream result, as this breaks the stream when re-opening it.
# https://github.com/googleapis/python-pubsub/issues/93#issuecomment-630762257
self._transport.streaming_pull._prefetch_first_result_ = False
\g<0>"""
,
)
# Emit deprecation warning if return_immediately flag is set with synchronous pull.
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/*client.py"
,
r"from google.pubsub_v1 import gapic_version as package_version"
,
"import warnings
\n
\g<0>"
,
)
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/*client.py"
,
r"""
([^\n\S]+(?:async\ )?def\ pull\(.*?->\ pubsub\.PullResponse:.*?)
((?P<indent>[^\n\S]+)\#\ Wrap\ the\ RPC\ method)
"""
,
textwrap
.
dedent
(
"""
\g<1>
\g<indent>if request.return_immediately:
\g<indent> warnings.warn(
\g<indent> "The return_immediately flag is deprecated and should be set to False.",
\g<indent> category=DeprecationWarning,
\g<indent> )
\g<2>"""
),
flags
=
re
.
MULTILINE
|
re
.
DOTALL
|
re
.
VERBOSE
,
)
if
count
!=
2
:
raise
Exception
(
"Too many or too few replacements in pull() methods."
)
# Silence deprecation warnings in pull() method flattened parameter tests.
s
.
replace
(
library
/
f"tests/unit/gapic/pubsub_
{
library
.
name
}
/test_subscriber.py"
,
"import os"
,
"\g<0>
\n
import warnings"
,
)
count
=
s
.
replace
(
library
/
f"tests/unit/gapic/pubsub_
{
library
.
name
}
/test_subscriber.py"
,
textwrap
.
dedent
(
r"""
([^\n\S]+# Call the method with a truthy value for each flattened field,
[^\n\S]+# using the keyword arguments to the method\.)
\s+(client\.pull\(.*?\))"""
),
"""
\n
\g<1>
with warnings.catch_warnings():
warnings.simplefilter("ignore", category=DeprecationWarning)
\g<2>"""
,
flags
=
re
.
MULTILINE
|
re
.
DOTALL
,
)
if
count
<
1
:
raise
Exception
(
"Catch warnings replacement failed."
)
count
=
s
.
replace
(
library
/
f"tests/unit/gapic/pubsub_
{
library
.
name
}
/test_subscriber.py"
,
textwrap
.
dedent
(
r"""
([^\n\S]+# Call the method with a truthy value for each flattened field,
[^\n\S]+# using the keyword arguments to the method\.)
\s+response = (await client\.pull\(.*?\))"""
),
"""
\n
\g<1>
with warnings.catch_warnings():
warnings.simplefilter("ignore", category=DeprecationWarning)
\g<2>"""
,
flags
=
re
.
MULTILINE
|
re
.
DOTALL
,
)
if
count
<
1
:
raise
Exception
(
"Catch warnings replacement failed."
)
# Make sure that client library version is present in user agent header.
count
=
s
.
replace
(
[
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/async_client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/transports/base.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/schema_service/async_client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/schema_service/client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/schema_service/transports/base.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/async_client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/client.py"
,
library
/
f"google/pubsub_
{
library
.
name
}
/services/subscriber/transports/base.py"
,
],
r"""gapic_version=package_version.__version__"""
,
"client_library_version=package_version.__version__"
,
)
if
count
<
1
:
raise
Exception
(
"client_library_version replacement failed."
)
# Allow timeout to be an instance of google.api_core.timeout.*
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/types/__init__.py"
,
r"from \.pubsub import \("
,
"from typing import Union
\n
\n
\g<0>"
,
)
if
count
<
1
:
raise
Exception
(
"Catch timeout replacement 1 failed."
)
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/types/__init__.py"
,
r"__all__ = \(\n"
,
textwrap
.
dedent
(
'''
\
TimeoutType = Union[
int,
float,
"google.api_core.timeout.ConstantTimeout",
"google.api_core.timeout.ExponentialTimeout",
]
"""The type of the timeout parameter of publisher client methods."""
\g<0> "TimeoutType",'''
),
)
if
count
<
1
:
raise
Exception
(
"Catch timeout replacement 2 failed."
)
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/*client.py"
,
r"from google.api_core import retry as retries.*\n"
,
"\g<0>from google.api_core import timeout as timeouts # type: ignore
\n
"
,
)
if
count
<
1
:
raise
Exception
(
"Catch timeout replacement 3 failed."
)
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/*client.py"
,
f"from google\.pubsub_
{
library
.
name
}
\.types import pubsub"
,
f"\g<0>
\n
from google.pubsub_
{
library
.
name
}
.types import TimeoutType"
,
)
if
count
<
1
:
raise
Exception
(
"Catch timeout replacement 4 failed."
)
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/*client.py"
,
r"(\s+)timeout: Union\[float, object\] = gapic_v1.method.DEFAULT.*\n"
,
f"\g<1>timeout: TimeoutType = gapic_
{
library
.
name
}
.method.DEFAULT,"
,
)
if
count
<
1
:
raise
Exception
(
"Catch timeout replacement 5 failed."
)
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/*client.py"
,
r"([^\S\r\n]+)timeout \(float\): (.*)\n"
,
(
"\g<1>timeout (TimeoutType):
\n
"
"\g<1> \g<2>
\n
"
),
)
if
count
<
1
:
raise
Exception
(
"Catch timeout replacement 6 failed."
)
# Override the default max retry deadline for publisher methods.
count
=
s
.
replace
(
library
/
f"google/pubsub_
{
library
.
name
}
/services/publisher/transports/base.py"
,
r"deadline=60\.0"
,
"deadline=600.0"
,
)
if
count
<
9
:
raise
Exception
(
"Default retry deadline not overriden for all publisher methods."
)
# The namespace package declaration in google/cloud/__init__.py should be excluded
# from coverage.
count
=
s
.
replace
(
library
/
".coveragerc"
,
"google/pubsub/__init__.py"
,
"""google/cloud/__init__.py
google/pubsub/__init__.py"""
,
)
if
count
<
1
:
raise
Exception
(
".coveragerc replacement failed."
)
s
.
move
([
library
],
excludes
=
[
"**/gapic_version.py"
,
"README.rst"
,
"docs/**/*"
,
"setup.py"
,
"testing/constraints-3.7.txt"
,
"testing/constraints-3.8.txt"
])
s
.
remove_staging_dirs
()
# ----------------------------------------------------------------------------
# Add templated files
# ----------------------------------------------------------------------------
templated_files
=
gcp
.
CommonTemplates
().
py_library
(
microgenerator
=
True
,
samples
=
True
,
cov_level
=
100
,
versions
=
gcp
.
common
.
detect_versions
(
path
=
"./google"
,
default_first
=
True
),
unit_test_python_versions
=
[
"3.7"
,
"3.8"
,
"3.9"
,
"3.10"
,
"3.11"
,
"3.12"
],
system_test_python_versions
=
[
"3.12"
],
system_test_external_dependencies
=
[
"psutil"
,
"flaky"
],
)
s
.
move
(
templated_files
,
excludes
=
[
".coveragerc"
,
".github/release-please.yml"
,
"README.rst"
,
"docs/index.rst"
])
# ----------------------------------------------------------------------------
# Add mypy nox session.
# ----------------------------------------------------------------------------
s
.
replace
(
"noxfile.py"
,
r"LINT_PATHS = \[.*?\]"
,
'\g<0>
\n
\n
MYPY_VERSION = "mypy==0.910"'
,
)
s
.
replace
(
"noxfile.py"
,
r'"blacken",'
,
'\g<0>
\n
"mypy",'
,
)
s
.
replace
(
"noxfile.py"
,
r"nox\.options\.error_on_missing_interpreters = True"
,
textwrap
.
dedent
(
''' \g<0>
@nox.session(python=DEFAULT_PYTHON_VERSION)
def mypy(session):
"""Run type checks with mypy."""
session.install("-e", ".[all]")
session.install(MYPY_VERSION)
# Version 2.1.1 of google-api-core version is the first type-checked release.
# Version 2.2.0 of google-cloud-core version is the first type-checked release.
session.install(
"google-api-core[grpc]>=2.1.1",
"google-cloud-core>=2.2.0",
)
# Just install the type info directly, since "mypy --install-types" might
# require an additional pass.
# Exclude types-protobuf==4.24.0.20240106
# See https://github.com/python/typeshed/issues/11254
session.install("types-protobuf!=4.24.0.20240106", "types-setuptools")
# TODO: Only check the hand-written layer, the generated code does not pass
# mypy checks yet.
# https://github.com/googleapis/gapic-generator-python/issues/1092
session.run("mypy", "-p", "google.cloud")'''
),
)
# ----------------------------------------------------------------------------
# Add mypy_samples nox session.
# ----------------------------------------------------------------------------
s
.
replace
(
"noxfile.py"
,
r' "mypy",'
,
'\g<0>
\n
# https://github.com/googleapis/python-pubsub/pull/552#issuecomment-1016256936'
'
\n
# "mypy_samples", # TODO: uncomment when the check passes'
,
)
s
.
replace
(
"noxfile.py"
,
r'session\.run\("mypy", "-p", "google.cloud"\)'
,
textwrap
.
dedent
(
''' \g<0>
@nox.session(python=DEFAULT_PYTHON_VERSION)
def mypy_samples(session):
"""Run type checks with mypy."""
session.install("-e", ".[all]")
session.install("pytest")
session.install(MYPY_VERSION)
# Just install the type info directly, since "mypy --install-types" might
# require an additional pass.
session.install("types-mock", "types-protobuf", "types-setuptools")
session.run(
"mypy",
"--config-file",
str(CURRENT_DIRECTORY / "samples" / "snippets" / "mypy.ini"),
"--no-incremental", # Required by warn-unused-configs from mypy.ini to work
"samples/",
)'''
),
)
# Only consider the hand-written layer when assessing the test coverage.
s
.
replace
(
"noxfile.py"
,
"--cov=google"
,
"--cov=google/cloud"
,
)
s
.
replace
(
".github/blunderbuss.yml"
,
"googleapis/api-pubsub"
,
"mukund-ananthu"
)
python
.
py_samples
(
skip_readmes
=
True
)
# run format session for all directories which have a noxfile
for
noxfile
in
Path
(
"."
).
glob
(
"**/noxfile.py"
):
s
.
shell
.
run
([
"nox"
,
"-s"
,
"blacken"
],
cwd
=
noxfile
.
parent
,
hide_output
=
False
)
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