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Copy pathbuild_aws_lambda_layer.py
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import os
import shutil
import subprocess
import sys
import tempfile
from typing import TYPE_CHECKING
from sentry_sdk.consts import VERSION as SDK_VERSION
if TYPE_CHECKING:
from typing import Optional
DIST_PATH = "dist" # created by "make dist" that is called by "make aws-lambda-layer"
PYTHON_SITE_PACKAGES = "python" # see https://docs.aws.amazon.com/lambda/latest/dg/configuration-layers.html#configuration-layers-path
class LayerBuilder:
def __init__(
self,
base_dir, # type: str
out_zip_filename=None, # type: Optional[str]
):
# type: (...) -> None
self.base_dir = base_dir
self.python_site_packages = os.path.join(self.base_dir, PYTHON_SITE_PACKAGES)
self.out_zip_filename = (
f"sentry-python-serverless-{SDK_VERSION}.zip"
if out_zip_filename is None
else out_zip_filename
)
def make_directories(self):
# type: (...) -> None
os.makedirs(self.python_site_packages)
def install_python_packages(self):
# type: (...) -> None
# Install requirements for Lambda Layer (these are more limited than the SDK requirements,
# because Lambda does not support the newest versions of some packages)
subprocess.check_call(
[
sys.executable,
"-m",
"pip",
"install",
"-r",
"requirements-aws-lambda-layer.txt",
"--target",
self.python_site_packages,
],
)
sentry_python_sdk = os.path.join(
DIST_PATH,
f"sentry_sdk-{SDK_VERSION}-py2.py3-none-any.whl", # this is generated by "make dist" that is called by "make aws-lambda-layer"
)
subprocess.run(
[
"pip",
"install",
"--no-cache-dir", # always access PyPI
"--no-deps", # the right depencencies have been installed in the call above
"--quiet",
sentry_python_sdk,
"--target",
self.python_site_packages,
],
check=True,
)
def create_init_serverless_sdk_package(self):
# type: (...) -> None
"""
Method that creates the init_serverless_sdk pkg in the
sentry-python-serverless zip
"""
serverless_sdk_path = (
f"{self.python_site_packages}/sentry_sdk/"
f"integrations/init_serverless_sdk"
)
if not os.path.exists(serverless_sdk_path):
os.makedirs(serverless_sdk_path)
shutil.copy(
"scripts/init_serverless_sdk.py", f"{serverless_sdk_path}/__init__.py"
)
def zip(self):
# type: (...) -> None
subprocess.run(
[
"zip",
"-q", # Quiet
"-x", # Exclude files
"**/__pycache__/*", # Files to be excluded
"-r", # Recurse paths
self.out_zip_filename, # Output filename
PYTHON_SITE_PACKAGES, # Files to be zipped
],
cwd=self.base_dir,
check=True, # Raises CalledProcessError if exit status is non-zero
)
shutil.copy(
os.path.join(self.base_dir, self.out_zip_filename),
os.path.abspath(DIST_PATH),
)
def build_packaged_zip(base_dir=None, make_dist=False, out_zip_filename=None):
if base_dir is None:
base_dir = tempfile.mkdtemp()
if make_dist:
# Same thing that is done by "make dist"
# (which is a dependency of "make aws-lambda-layer")
subprocess.check_call(
[sys.executable, "setup.py", "sdist", "bdist_wheel", "-d", DIST_PATH],
)
layer_builder = LayerBuilder(base_dir, out_zip_filename=out_zip_filename)
layer_builder.make_directories()
layer_builder.install_python_packages()
layer_builder.create_init_serverless_sdk_package()
layer_builder.zip()
# Just for debugging
dist_path = os.path.abspath(DIST_PATH)
print("Created Lambda Layer package with this information:")
print(" - Base directory for generating package: {}".format(layer_builder.base_dir))
print(
" - Created Python SDK distribution (in `{}`): {}".format(dist_path, make_dist)
)
if not make_dist:
print(" If 'False' we assume it was already created (by 'make dist')")
print(" - Package zip filename: {}".format(layer_builder.out_zip_filename))
print(" - Copied package zip to: {}".format(dist_path))
if __name__ == "__main__":
build_packaged_zip()