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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)
import re
import spack.error
# regex for a commit version
COMMIT_VERSION = re.compile(r"^[a-f0-9]{40}$")
# Infinity-like versions. The order in the list implies the comparison rules
infinity_versions = ["stable", "trunk", "head", "master", "main", "develop"]
iv_min_len = min(len(s) for s in infinity_versions)
def is_git_version(string: str) -> bool:
return (
string.startswith("git.")
or len(string) == 40
and bool(COMMIT_VERSION.match(string))
or "=" in string[1:]
)
class VersionError(spack.error.SpackError):
"""This is raised when something is wrong with a version."""
class VersionChecksumError(VersionError):
"""Raised for version checksum errors."""
class VersionLookupError(VersionError):
"""Raised for errors looking up git commits as versions."""
class EmptyRangeError(VersionError):
"""Raised when constructing an empty version range."""
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