def get_stale_blob_upload(stale_timespan):
"""
Returns a random blob upload which was created before the stale timespan.
"""
stale_threshold = datetime.now() - stale_timespan
try:
candidates = (
BlobUpload.select()
.where(BlobUpload.created <= stale_threshold)
.limit(500)
.distinct()
.alias("candidates")
)
found = (
BlobUpload.select(candidates.c.id).from_(candidates).order_by(db_random_func()).get()
)
if not found:
return None
return (
BlobUpload.select(BlobUpload, ImageStorageLocation)
.join(ImageStorageLocation)
.where(BlobUpload.id == found.id)
.get()
)
except BlobUpload.DoesNotExist:
return None
def initiate_upload_for_repo(repo, uuid, location_name, storage_metadata):
""" Initiates a blob upload for a specific repository object, in a specific location. """
location = storage_model.get_image_location_for_name(location_name)
return BlobUpload.create(repository=repo,
location=location.id,
uuid=uuid,
storage_metadata=storage_metadata)
def get_blob_upload_by_uuid(upload_uuid):
""" Loads the upload with the given UUID, if any. """
try:
return (BlobUpload.select().where(
BlobUpload.uuid == upload_uuid).get())
except BlobUpload.DoesNotExist:
return None
def get_blob_upload(namespace, repo_name, upload_uuid):
""" Load the upload which is already in progress.
"""
try:
return (BlobUpload.select(BlobUpload, ImageStorageLocation).join(
ImageStorageLocation).switch(BlobUpload).join(Repository).join(
Namespace,
on=(Namespace.id == Repository.namespace_user)).where(
Repository.name == repo_name,
Namespace.username == namespace,
BlobUpload.uuid == upload_uuid).get())
except BlobUpload.DoesNotExist:
raise InvalidBlobUpload()
def get_stale_blob_upload(stale_timespan):
"""
Returns a blob upload which was created before the stale timespan.
"""
stale_threshold = datetime.now() - stale_timespan
try:
candidates = (BlobUpload.select(
BlobUpload, ImageStorageLocation).join(ImageStorageLocation).where(
BlobUpload.created <= stale_threshold))
return candidates.get()
except BlobUpload.DoesNotExist:
return None
def get_size_during_upload(repo_id: int):
# TODO: Make this one trip to the db instead of 2?
size = get_repository_size_and_cache(repo_id)
query = (BlobUpload.select(
fn.Sum(BlobUpload.byte_count).alias("size_bytes")).where(
BlobUpload.repository_id == repo_id)).get()
repo_size = 0
size_bytes = 0
if size["repository_size"] is not None:
repo_size = size["repository_size"]
if query.size_bytes is not None:
size_bytes = query.size_bytes
size_bytes = repo_size + size_bytes
return size_bytes
