def commit_to_blob(self, app_config, expected_digest=None):
""" Commits the blob upload to a blob under the repository. The resulting blob will be marked
to not be GCed for some period of time (as configured by `committed_blob_expiration`).
If expected_digest is specified, the content digest of the data uploaded for the blob is
compared to that given and, if it does not match, a BlobDigestMismatchException is
raised. The digest given must be of type `Digest` and not a string. """
# Compare the content digest.
if expected_digest is not None:
self._validate_digest(expected_digest)
# Finalize the storage.
storage_already_existed = self._finalize_blob_storage(app_config)
# Convert the upload to a blob.
computed_digest_str = digest_tools.sha256_digest_from_hashlib(
self.blob_upload.sha_state)
with db_transaction():
blob = registry_model.commit_blob_upload(
self.blob_upload, computed_digest_str,
self.settings.committed_blob_expiration)
if blob is None:
return None
# Save torrent hash information (if available).
if self.blob_upload.piece_sha_state is not None and not storage_already_existed:
piece_bytes = (self.blob_upload.piece_hashes +
self.blob_upload.piece_sha_state.digest())
registry_model.set_torrent_info(
blob, self.settings.bittorrent_piece_size, piece_bytes)
self.committed_blob = blob
return blob
def _store_metadata_and_cleanup():
if is_readonly:
return
with database.UseThenDisconnect(app.config):
registry_model.set_torrent_info(
derived_image.blob, app.config["BITTORRENT_PIECE_SIZE"], hasher.final_piece_hashes()
)
registry_model.set_derived_image_size(derived_image, hasher.hashed_bytes)