def filter_for_os(archive_candidates: List[MetadataItem], os_type: str) -> List[MetadataItem]:
filtered_exactly = [
candidate for candidate in archive_candidates if candidate.os_type == os_type
]
if filtered_exactly:
return filtered_exactly
return [
candidate for candidate in archive_candidates
if is_compatible_os(candidate.os_type, os_type)
]
def get_llvm_url(compiler_type: str) -> Optional[str]:
os_type_to_llvm_url = (
COMPILER_TYPE_TO_ARCH_TO_OS_TYPE_TO_LLVM_URL.get(compiler_type)
or {}).get(local_sys_conf().architecture)
if os_type_to_llvm_url is None:
return None
os_type = local_sys_conf().short_os_name_and_version()
if os_type in os_type_to_llvm_url:
return os_type_to_llvm_url[os_type]
candidate_urls = [
os_type_to_llvm_url[os_type_key] for os_type_key in os_type_to_llvm_url
if is_compatible_os(os_type_key, os_type)
]
if len(candidate_urls) > 1:
raise ValueError("Ambiguous LLVM URLs: %s" % candidate_urls)
if not candidate_urls:
return None
candidate_url = candidate_urls[0]
return candidate_url