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npm_utils.py
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npm_utils.py
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import logging
from datetime import datetime
from functools import lru_cache
from typing import List, Optional, Set, Union
import requests
def str_to_date(date_str: Union[dict, str]) -> datetime:
if isinstance(date_str, dict):
date_str = date_str["time"]
return datetime.strptime(date_str[:-5], "%Y-%m-%dT%H:%M:%S")
def get_user_data(user_name: str, page: int) -> dict:
headers = {"authority": "www.npmjs.com", "accept": "*/*", "x-spiferack": "1"}
params = {"page": str(page)}
response = requests.get(
f"https://www.npmjs.com/~{user_name}", params=params, headers=headers
)
if not response:
logging.warning(
"Can't fetch page %s of %s (status code: %d)",
page,
user_name,
response.status_code,
)
return {}
return response.json()
@lru_cache()
def get_package_details(package_name: str) -> dict:
response = requests.get(f"https://registry.npmjs.org/{package_name}")
if not response:
print(f"Can't get data of {package_name} ({response.status_code})")
return {}
return response.json()
def get_latest_version_name(package_details: dict) -> Optional[str]:
times = [
(version_name, version_mod)
for version_name, version_mod in package_details.get("time", {}).items()
if version_name not in ["created", "modified", "unpublished"]
]
sorted_times = sorted(times, key=lambda x: str_to_date(x[1]))
if not sorted_times:
return None
return sorted_times[-1][0]
def get_package_dependencies(package_name: str) -> Set[str]:
res = set([])
package_data = get_package_details(package_name)
version_name = get_latest_version_name(package_data)
if not version_name:
return res
version_data = package_data.get("versions", {}).get(version_name, {})
if not version_data:
return res
res.update(version_data.get("dependencies", {}).keys())
return res
def get_package_emails(package_name: str) -> List[str]:
return [
maintainer["email"]
for maintainer in get_package_details(package_name).get("maintainers")
if "email" in maintainer
]