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install_debugpy.py

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import io

import json

import os

import urllib.request as url_lib

import zipfile

from packaging.version import parse as version_parser

EXTENSION_ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

DEBUGGER_DEST = os.path.join(EXTENSION_ROOT, "pythonFiles", "lib", "python")

DEBUGGER_PACKAGE = "debugpy"

DEBUGGER_PYTHON_VERSIONS = ("cp38",)

def _contains(s, parts=()):

return any(p for p in parts if p in s)

def _get_package_data():

json_uri = "https://pypi.org/pypi/{0}/json".format(DEBUGGER_PACKAGE)

# Response format: https://warehouse.readthedocs.io/api-reference/json/#project

# Release metadata format: https://github.com/pypa/interoperability-peps/blob/master/pep-0426-core-metadata.rst

with url_lib.urlopen(json_uri) as response:

return json.loads(response.read())

def _get_debugger_wheel_urls(data, version):

return list(

r["url"]

for r in data["releases"][version]

if _contains(r["url"], DEBUGGER_PYTHON_VERSIONS)

)

def _download_and_extract(root, url, version):

root = os.getcwd() if root is None or root == "." else root

prefix = os.path.join("debugpy-{0}.data".format(version), "purelib")

with url_lib.urlopen(url) as response:

# Extract only the contents of the purelib subfolder (parent folder of debugpy),

# since debugpy files rely on the presence of a 'debugpy' folder.

with zipfile.ZipFile(io.BytesIO(response.read()), "r") as wheel:

for zip_info in wheel.infolist():

# Ignore dist info since we are merging multiple wheels

if ".dist-info" in zip_info.filename:

continue

# Normalize path for Windows, the wheel folder structure

# uses forward slashes.

normalized = os.path.normpath(zip_info.filename)

# Flatten the folder structure.

zip_info.filename = normalized.split(prefix)[-1]

wheel.extract(zip_info, root)

def main(root):

data = _get_package_data()

latest_version = max(data["releases"].keys(), key=version_parser)

for url in _get_debugger_wheel_urls(data, latest_version):

_download_and_extract(root, url, latest_version)

if __name__ == "__main__":

main(DEBUGGER_DEST)