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# Copyright 2013-2024 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
from typing import Optional
import spack.package_base
import spack.util.url
class GNUMirrorPackage(spack.package_base.PackageBase):
"""Mixin that takes care of setting url and mirrors for GNU packages."""
#: Path of the package in a GNU mirror
gnu_mirror_path: Optional[str] = None
#: List of GNU mirrors used by Spack
base_mirrors = [
"https://ftpmirror.gnu.org/",
"https://ftp.gnu.org/gnu/",
# Fall back to http if https didn't work (for instance because
# Spack is bootstrapping curl)
"http://ftpmirror.gnu.org/",
]
@property
def urls(self):
self._ensure_gnu_mirror_path_is_set_or_raise()
return [
spack.util.url.join(m, self.gnu_mirror_path, resolve_href=True)
for m in self.base_mirrors
]
def _ensure_gnu_mirror_path_is_set_or_raise(self):
if self.gnu_mirror_path is None:
cls_name = type(self).__name__
msg = "{0} must define a `gnu_mirror_path` attribute" " [none defined]"
raise AttributeError(msg.format(cls_name))
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