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lookups.py
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lookups.py
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import collections.abc
import dacite
import functools
import urllib.parse
import ccc.oci
import ci.util
import cnudie.retrieve
import cnudie.retrieve_async
import cnudie.util
import delivery.client
import oci.client
import oci.client_async
import ocm
import ctx_util
import paths
def semver_sanitised_oci_client(
cfg_factory=None,
) -> oci.client.Client:
if not cfg_factory:
cfg_factory = ctx_util.cfg_factory()
return ccc.oci.oci_client(
cfg_factory=cfg_factory,
tag_preprocessing_callback=cnudie.util.sanitise_version,
tag_postprocessing_callback=cnudie.util.desanitise_version,
)
def semver_sanitised_oci_client_async(
cfg_factory=None,
) -> oci.client_async.Client:
if not cfg_factory:
cfg_factory = ctx_util.cfg_factory()
return ccc.oci.oci_client_async(
cfg_factory=cfg_factory,
tag_preprocessing_callback=cnudie.util.sanitise_version,
tag_postprocessing_callback=cnudie.util.desanitise_version,
)
@functools.cache
def init_ocm_repository_lookup() -> cnudie.retrieve.OcmRepositoryLookup:
if features_cfg_path := paths.features_cfg_path():
features_cfg_raw = ci.util.parse_yaml_file(features_cfg_path)
ocm_repo_mappings_raw = features_cfg_raw.get('ocmRepoMappings', tuple())
else:
ocm_repo_mappings_raw = tuple()
ocm_repo_mappings = tuple(
dacite.from_dict(
data_class=cnudie.retrieve.OcmRepositoryMappingEntry,
data=raw_mapping,
) for raw_mapping in ocm_repo_mappings_raw
)
def ocm_repository_lookup(component: ocm.ComponentIdentity, /):
for mapping in ocm_repo_mappings:
if not mapping.prefix:
yield mapping.repository
continue
component_name = cnudie.util.to_component_name(component)
if component_name.startswith(mapping.prefix):
yield mapping.repository
return ocm_repository_lookup
def init_component_descriptor_lookup(
ocm_repository_lookup: cnudie.retrieve.OcmRepositoryLookup=None,
cache_dir: str=None,
delivery_client: delivery.client.DeliveryServiceClient=None,
oci_client: oci.client.Client=None,
default_absent_ok: bool=False,
) -> cnudie.retrieve.ComponentDescriptorLookupById:
'''
convenience function to create a composite component descriptor lookup consisting of:
- in-memory cache lookup
- file-system cache lookup (if `cache_dir` is specified)
- delivery-client lookup (if `delivery_client` is specified)
- oci-client lookup
'''
if not ocm_repository_lookup:
ocm_repository_lookup = init_ocm_repository_lookup()
if not oci_client:
oci_client = semver_sanitised_oci_client()
lookups = [cnudie.retrieve.in_memory_cache_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
)]
if cache_dir:
lookups.append(cnudie.retrieve.file_system_cache_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
cache_dir=cache_dir,
))
if delivery_client:
lookups.append(cnudie.retrieve.delivery_service_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
delivery_client=delivery_client,
))
lookups.append(cnudie.retrieve.oci_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
oci_client=oci_client,
))
return cnudie.retrieve.composite_component_descriptor_lookup(
lookups=lookups,
ocm_repository_lookup=ocm_repository_lookup,
default_absent_ok=default_absent_ok,
)
def init_component_descriptor_lookup_async(
ocm_repository_lookup: cnudie.retrieve.OcmRepositoryLookup=None,
cache_dir: str=None,
delivery_client: delivery.client.DeliveryServiceClient=None,
oci_client: oci.client_async.Client=None,
default_absent_ok: bool=False,
) -> cnudie.retrieve_async.ComponentDescriptorLookupById:
'''
convenience function to create a composite component descriptor lookup consisting of:
- in-memory cache lookup
- file-system cache lookup (if `cache_dir` is specified)
- delivery-client lookup (if `delivery_client` is specified)
- oci-client lookup
'''
if not ocm_repository_lookup:
ocm_repository_lookup = init_ocm_repository_lookup()
if not oci_client:
oci_client = semver_sanitised_oci_client_async()
lookups = [cnudie.retrieve_async.in_memory_cache_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
)]
if cache_dir:
lookups.append(cnudie.retrieve_async.file_system_cache_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
cache_dir=cache_dir,
))
if delivery_client:
lookups.append(cnudie.retrieve_async.delivery_service_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
delivery_client=delivery_client,
))
lookups.append(cnudie.retrieve_async.oci_component_descriptor_lookup(
ocm_repository_lookup=ocm_repository_lookup,
oci_client=oci_client,
))
return cnudie.retrieve_async.composite_component_descriptor_lookup(
lookups=lookups,
ocm_repository_lookup=ocm_repository_lookup,
default_absent_ok=default_absent_ok,
)
def init_version_lookup(
ocm_repository_lookup: cnudie.retrieve.OcmRepositoryLookup=None,
oci_client: oci.client.Client=None,
default_absent_ok: bool=False,
) -> cnudie.retrieve.VersionLookupByComponent:
if not ocm_repository_lookup:
ocm_repository_lookup = init_ocm_repository_lookup()
if not oci_client:
oci_client = semver_sanitised_oci_client()
return cnudie.retrieve.version_lookup(
ocm_repository_lookup=ocm_repository_lookup,
oci_client=oci_client,
default_absent_ok=default_absent_ok,
)
def init_version_lookup_async(
ocm_repository_lookup: cnudie.retrieve.OcmRepositoryLookup=None,
oci_client: oci.client_async.Client=None,
default_absent_ok: bool=False,
) -> cnudie.retrieve_async.VersionLookupByComponent:
if not ocm_repository_lookup:
ocm_repository_lookup = init_ocm_repository_lookup()
if not oci_client:
oci_client = semver_sanitised_oci_client_async()
return cnudie.retrieve_async.version_lookup(
ocm_repository_lookup=ocm_repository_lookup,
oci_client=oci_client,
default_absent_ok=default_absent_ok,
)
def github_api_lookup(
cfg_factory=None,
) -> 'collections.abc.Callable[[str], github3.github.GitHub]': # avoid import
'''
creates a github-api-lookup. ideally, this lookup should be created at application launch, and
passed to consumers.
'''
if not cfg_factory:
cfg_factory = ctx_util.cfg_factory()
def github_api_lookup(
repo_url: str,
/,
absent_ok: bool=False,
) -> 'github3.github.GitHub | None': # avoid import
'''
returns an initialised and authenticated apiclient object suitable for
the passed repository URL
The implementation currently delegates lookup to `ccc.github.github_api`. Consistently using
this wrapper will however allow for later decoupling.
raises ValueError if no configuration (credentials) is found for the given repository url
unless absent_ok is set to a truthy value, in which case None is returned instead.
'''
import ccc.github
try:
return ccc.github.github_api(
repo_url=repo_url,
cfg_factory=cfg_factory,
)
except:
if not absent_ok:
raise
else:
return None
return github_api_lookup
def github_repo_lookup(
github_api_lookup,
):
def github_repo_lookup(
repo_url: str, /,
):
if not '://' in repo_url:
repo_url = f'x://{repo_url}'
parsed = urllib.parse.urlparse(repo_url)
org, repo = parsed.path.strip('/').split('/')[:2]
gh_api = github_api_lookup(repo_url)
return gh_api.repository(org, repo)
return github_repo_lookup