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generate_index.py
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# Copyright 2023 Pants project contributors (see CONTRIBUTORS.md).
# Licensed under the Apache License, Version 2.0 (see LICENSE).
from __future__ import annotations
import argparse
import os
import sys
from collections import defaultdict
from copy import deepcopy
from pathlib import Path
from textwrap import dedent
from typing import Any
import github
import github.GitReleaseAsset
from packaging.utils import parse_wheel_filename
from packaging.version import Version
#
# Output a PEP 503 compliant package repository for Pants wheels.
# See https://peps.python.org/pep-0503/
#
def get_pants_python_packages(gh: github.Github) -> dict[str, dict[Version, list[Any]]]:
repo = gh.get_repo("pantsbuild/pants")
all_releases = repo.get_releases()
pants_wheel_assets = [
asset
for release in all_releases
if release.tag_name.startswith("release_2")
for asset in release.assets
if asset.name.endswith(".whl")
]
packages: dict[str, dict[Version, list[Any]]] = defaultdict(
lambda: defaultdict(list)
)
for asset in pants_wheel_assets:
name, version, _build_tag, _tags = parse_wheel_filename(asset.name)
packages[name][version].append(asset)
return packages
def _apply_version_filter(
packages: dict[str, dict[Version, list[Any]]], max_version: Version
) -> None:
to_delete: set[tuple[str, Version]] = set()
for package_name, package in packages.items():
for version in package.keys():
if version >= max_version:
to_delete.add((package_name, version))
for name, version in to_delete:
del packages[name][version]
def _legacy_flat_links(packages: dict[str, dict[Version, list[Any]]]) -> list[str]:
return [
f'<a href="{asset.browser_download_url}">{asset.name}</a><br>'
for package_versions in packages.values()
for _, version_release_assets in sorted(package_versions.items(), reverse=True)
for asset in version_release_assets
]
# http://repository.example.com/simple/PACKAGE_NAME/
def _write_package_specific_index(
output_dir: Path, package_name: str, package_versions: dict[Version, list[Any]]
) -> None:
package_output_dir = output_dir / package_name
package_output_dir.mkdir()
package_version_keys = sorted(package_versions.keys(), reverse=True)
with open(package_output_dir / "index.html", "w") as f:
f.write(
dedent(
f"""\
<!DOCTYPE html>
<html>
<body>
<h1>Links for Pantsbuild Wheels - {package_name}</h1>
<ul>
"""
)
)
for package_version_key in package_version_keys:
package_version_assets = package_versions[package_version_key]
package_version_assets.sort(key=lambda x: x.name)
for asset in package_version_assets:
f.write(
f"""<li><a href="{asset.browser_download_url}">{asset.name}</a></li>\n"""
)
f.write(
dedent(
"""\
</ul>
</body>
</html>
"""
)
)
def main(args):
parser = argparse.ArgumentParser()
parser.add_argument("--url-path-prefix", default="/", action="store")
parser.add_argument("--exclude-legacy-links", default=False, action="store_true")
parser.add_argument("output_dir", action="store")
opts = parser.parse_args(args)
github_client = github.Github(auth=github.Auth.Token(os.environ["GH_TOKEN"]))
packages = get_pants_python_packages(github_client)
package_names = sorted(packages.keys())
prefix = opts.url_path_prefix
if prefix and prefix.endswith("/"):
prefix = prefix[0:-1]
output_dir = Path(opts.output_dir)
if output_dir.exists():
raise Exception(f"Output directory `{output_dir}` already exists.")
output_dir.mkdir(parents=True)
# http://repository.example.com/simple/
with open(output_dir / "index.html", "w") as f:
f.write(
dedent(
"""\
<!DOCTYPE html>
<html>
<body>
<h1>Links for Pantsbuild Wheels</h1>
<ul>
"""
)
)
for package_name in package_names:
f.write(
f"""<li><a href="{prefix}/{package_name}/">{package_name}</a></li>\n"""
)
if opts.exclude_legacy_links:
packages_copy = deepcopy(packages)
_apply_version_filter(packages_copy, Version("2.25.0.dev0"))
f.write("\n".join(_legacy_flat_links(packages_copy)))
else:
f.write("\n".join(_legacy_flat_links(packages)))
f.write(
dedent(
"""\
</ul>
</body>
</html>
"""
)
)
# http://repository.example.com/simple/PACKAGE_NAME/
for package_name in package_names:
_write_package_specific_index(output_dir, package_name, packages[package_name])
if __name__ == "__main__":
sys.exit(main(sys.argv[1:]))