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			296 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			296 lines
		
	
	
		
			11 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| """
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| Creates an issue that generates a table for dependency checking whether
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| all packages support the latest Django version. "Latest" does not include
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| patches, only comparing major and minor version numbers.
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| 
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| This script handles when there are multiple Django versions that need
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| to keep up to date.
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| """
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| from __future__ import annotations
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| 
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| import os
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| import re
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| import sys
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| from pathlib import Path
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| from typing import TYPE_CHECKING, Any, Iterable, NamedTuple
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| 
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| import requests
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| from github import Github
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| 
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| if TYPE_CHECKING:
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|     from github.Issue import Issue
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| 
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| CURRENT_FILE = Path(__file__)
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| ROOT = CURRENT_FILE.parents[1]
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| REQUIREMENTS_DIR = ROOT / "{{cookiecutter.project_slug}}" / "requirements"
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| GITHUB_TOKEN = os.getenv("GITHUB_TOKEN", None)
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| GITHUB_REPO = os.getenv("GITHUB_REPOSITORY", None)
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| 
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| 
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| class DjVersion(NamedTuple):
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|     """
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|     Wrapper to parse, compare and render Django versions.
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| 
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|     Only keeps track on (major, minor) versions, excluding patches and pre-releases.
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|     """
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| 
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|     major: int
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|     minor: int
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| 
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|     def __str__(self) -> str:
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|         """To render as string."""
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|         return f"{self.major}.{self.minor}"
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| 
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|     @classmethod
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|     def parse(cls, version_str: str) -> DjVersion:
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|         """Parse interesting values from the version string."""
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|         major, minor, *_ = version_str.split(".")
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|         return cls(major=int(major), minor=int(minor))
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| 
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| 
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| def get_package_info(package: str) -> dict:
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|     """Get package metadata using PyPI API."""
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|     # "django" converts to "Django" on redirect
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|     r = requests.get(f"https://pypi.org/pypi/{package}/json", allow_redirects=True)
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|     if not r.ok:
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|         print(f"Couldn't find package: {package}")
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|         sys.exit(1)
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|     return r.json()
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| 
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| 
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| def get_django_versions() -> Iterable[DjVersion]:
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|     """List all django versions."""
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|     django_package_info: dict[str, Any] = get_package_info("django")
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|     releases = django_package_info["releases"].keys()
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|     for release_str in releases:
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|         if release_str.replace(".", "").isdigit():
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|             # Exclude pre-releases with non-numeric characters in version
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|             yield DjVersion.parse(release_str)
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| 
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| 
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| def get_name_and_version(requirements_line: str) -> tuple[str, ...]:
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|     """Get the name a version of a package from a line in the requirement file."""
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|     full_name, version = requirements_line.split(" ", 1)[0].split("==")
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|     name_without_extras = full_name.split("[", 1)[0]
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|     return name_without_extras, version
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| 
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| 
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| def get_all_latest_django_versions() -> tuple[DjVersion, list[DjVersion]]:
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|     """
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|     Grabs all Django versions that are worthy of a GitHub issue.
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| 
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|     Depends on Django versions having higher major version or minor version.
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|     """
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|     print("Fetching all Django versions from PyPI")
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|     base_txt = REQUIREMENTS_DIR / "base.txt"
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|     with base_txt.open() as f:
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|         for line in f.readlines():
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|             if "django==" in line:
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|                 break
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|         else:
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|             print(f"django not found in {base_txt}")  # Huh...?
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|             sys.exit(1)
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| 
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|     # Begin parsing and verification
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|     _, current_version_str = get_name_and_version(line)
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|     # Get a tuple of (major, minor) - ignoring patch version
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|     current_minor_version = DjVersion.parse(current_version_str)
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|     newer_versions: set[DjVersion] = set()
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|     for django_version in get_django_versions():
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|         if django_version > current_minor_version:
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|             newer_versions.add(django_version)
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| 
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|     return current_minor_version, sorted(newer_versions, reverse=True)
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| 
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| 
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| _TABLE_HEADER = """
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| 
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| ## {file}.txt
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| 
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| | Name | Version in Master | {dj_version} Compatible Version | OK |
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| | ---- | :---------------: | :-----------------------------: | :-: |
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| """
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| VITAL_BUT_UNKNOWN = [
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|     "django-environ",  # not updated often
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| ]
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| 
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| 
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| class GitHubManager:
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|     def __init__(self, base_dj_version: DjVersion, needed_dj_versions: list[DjVersion]):
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|         self.github = Github(GITHUB_TOKEN)
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|         self.repo = self.github.get_repo(GITHUB_REPO)
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| 
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|         self.base_dj_version = base_dj_version
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|         self.needed_dj_versions = needed_dj_versions
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|         # (major+minor) Version and description
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|         self.existing_issues: dict[DjVersion, Issue] = {}
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| 
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|         # Load all requirements from our requirements files and preload their
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|         # package information like a cache:
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|         self.requirements_files = ["base", "local", "production"]
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|         # Format:
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|         # requirement file name: {package name: (master_version, package_info)}
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|         self.requirements: dict[str, dict[str, tuple[str, dict]]] = {
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|             x: {} for x in self.requirements_files
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|         }
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| 
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|     def setup(self) -> None:
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|         self.load_requirements()
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|         self.load_existing_issues()
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| 
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|     def load_requirements(self):
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|         print("Reading requirements")
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|         for requirements_file in self.requirements_files:
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|             with (REQUIREMENTS_DIR / f"{requirements_file}.txt").open() as f:
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|                 for line in f.readlines():
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|                     if "==" in line and not line.startswith("{%"):
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|                         name, version = get_name_and_version(line)
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|                         self.requirements[requirements_file][name] = (
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|                             version,
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|                             get_package_info(name),
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|                         )
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| 
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|     def load_existing_issues(self):
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|         """Closes the issue if the base Django version is greater than needed"""
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|         print("Load existing issues from GitHub")
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|         qualifiers = {
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|             "repo": GITHUB_REPO,
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|             "author": "app/github-actions",
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|             "state": "open",
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|             "is": "issue",
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|             "in": "title",
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|         }
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|         issues = list(
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|             self.github.search_issues(
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|                 "[Django Update]", "created", "desc", **qualifiers
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|             )
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|         )
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|         print(f"Found {len(issues)} issues matching search")
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|         for issue in issues:
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|             matches = re.match(r"\[Update Django] Django (\d+.\d+)$", issue.title)
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|             if not matches:
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|                 continue
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|             issue_version = DjVersion.parse(matches.group(1))
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|             if self.base_dj_version > issue_version:
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|                 issue.edit(state="closed")
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|                 print(f"Closed issue {issue.title} (ID: [{issue.id}]({issue.url}))")
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|             else:
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|                 self.existing_issues[issue_version] = issue
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| 
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|     def get_compatibility(
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|         self, package_name: str, package_info: dict, needed_dj_version: DjVersion
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|     ):
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|         """
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|         Verify compatibility via setup.py classifiers. If Django is not in the
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|         classifiers, then default compatibility is n/a and OK is ✅.
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| 
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|         If it's a package that's vital but known to not be updated often, we give it
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|         a ❓. If a package has ❓ or 🕒, then we allow manual update. Automatic updates
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|          only include ❌ and ✅.
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|         """
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|         # If issue previously existed, find package and skip any gtg, manually
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|         # updated packages, or known releases that will happen but haven't yet
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|         if issue := self.existing_issues.get(needed_dj_version):
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|             if index := issue.body.find(package_name):
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|                 name, _current, prev_compat, ok = [
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|                     s.strip() for s in issue.body[index:].split("|", 4)[:4]
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|                 ]
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|                 if ok in ("✅", "❓", "🕒"):
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|                     return prev_compat, ok
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| 
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|         if package_name in VITAL_BUT_UNKNOWN:
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|             return "", "❓"
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| 
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|         # Check classifiers if it includes Django
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|         supported_dj_versions: list[DjVersion] = []
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|         for classifier in package_info["info"]["classifiers"]:
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|             # Usually in the form of "Framework :: Django :: 3.2"
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|             tokens = classifier.split(" ")
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|             if len(tokens) >= 5 and tokens[2].lower() == "django":
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|                 version = DjVersion.parse(tokens[4])
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|                 if len(version) == 2:
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|                     supported_dj_versions.append(version)
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| 
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|         if supported_dj_versions:
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|             if any(v >= needed_dj_version for v in supported_dj_versions):
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|                 return package_info["info"]["version"], "✅"
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|             else:
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|                 return "", "❌"
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| 
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|         # Django classifier DNE; assume it isn't a Django lib
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|         # Great exceptions include pylint-django, where we need to do this manually...
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|         return "n/a", "✅"
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| 
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|     HOME_PAGE_URL_KEYS = [
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|         "home_page",
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|         "project_url",
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|         "docs_url",
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|         "package_url",
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|         "release_url",
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|         "bugtrack_url",
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|     ]
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| 
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|     def _get_md_home_page_url(self, package_info: dict):
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|         urls = [
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|             package_info["info"].get(url_key) for url_key in self.HOME_PAGE_URL_KEYS
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|         ]
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|         try:
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|             return f"[{{}}]({next(item for item in urls if item)})"
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|         except StopIteration:
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|             return "{}"
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| 
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|     def generate_markdown(self, needed_dj_version: DjVersion):
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|         requirements = f"{needed_dj_version} requirements tables\n\n"
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|         for _file in self.requirements_files:
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|             requirements += _TABLE_HEADER.format_map(
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|                 {"file": _file, "dj_version": needed_dj_version}
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|             )
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|             for package_name, (version, info) in self.requirements[_file].items():
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|                 compat_version, icon = self.get_compatibility(
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|                     package_name, info, needed_dj_version
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|                 )
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|                 requirements += (
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|                     f"| {self._get_md_home_page_url(info).format(package_name)} "
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|                     f"| {version} "
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|                     f"| {compat_version} "
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|                     f"| {icon} "
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|                     f"|\n"
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|                 )
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|         return requirements
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| 
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|     def create_or_edit_issue(self, needed_dj_version: DjVersion, description: str):
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|         if issue := self.existing_issues.get(needed_dj_version):
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|             print(f"Editing issue #{issue.number} for Django {needed_dj_version}")
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|             issue.edit(body=description)
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|         else:
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|             print(f"Creating new issue for Django {needed_dj_version}")
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|             issue = self.repo.create_issue(
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|                 f"[Update Django] Django {needed_dj_version}", description
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|             )
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|             issue.add_to_labels(f"django{needed_dj_version}")
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| 
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|     def generate(self):
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|         for version in self.needed_dj_versions:
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|             print(f"Handling GitHub issue for Django {version}")
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|             md_content = self.generate_markdown(version)
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|             print(f"Generated markdown:\n\n{md_content}")
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|             self.create_or_edit_issue(version, md_content)
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| 
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| 
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| def main() -> None:
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|     # Check if there are any djs
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|     current_dj, latest_djs = get_all_latest_django_versions()
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|     if not latest_djs:
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|         sys.exit(0)
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|     manager = GitHubManager(current_dj, latest_djs)
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|     manager.setup()
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|     manager.generate()
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| 
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| 
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| if __name__ == "__main__":
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|     if GITHUB_REPO is None:
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|         raise RuntimeError(
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|             "No github repo, please set the environment variable GITHUB_REPOSITORY"
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|         )
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|     main()
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