Crate appcore_update 

Application artifact update, activation and rollback lifecycle.

The Runtime treats artifacts as opaque bytes. It verifies generic identity, compatibility and integrity but never knows application code or business data.

Structs

ActivationReceipt

Receipt required to commit or roll back one activation.

ArtifactDescriptor

Immutable application artifact published by an update provider.

ArtifactTrustPolicy

Deployment-owned allowlist applied before signature verification.

Ed25519ArtifactVerifier

Ed25519 verifier backed by deployment-owned public trust roots.

FileArtifactStore

Filesystem artifact store using atomic pointer replacement.

FileUpdateProvider

Local-first update provider backed by a bounded JSON artifact index.

FileUpdateProviderFactory

Factory for the local-first file update provider.

NoUpdateFaults

Fault injector that never interrupts production execution.

PolicyArtifactVerifier

Composes deployment allowlists with a cryptographic verifier.

StagedArtifact

Opaque staged artifact owned by an artifact store.

UpdateCoordinator

Coordinates provider, store, integrity, health and rollback boundaries.

UpdateRequest

Query used to select an update candidate.

Enums

SigningKeyStatus

Lifecycle status of one deployment-owned artifact signing key.

UpdateError

Update lifecycle failure.

UpdateFaultPoint

Controlled lifecycle points available to fault-injection tests.

UpdateOutcome

Final result of one update attempt.

UpdatePreparation

Result of staging and activating an update before process-level health verification.

UpdateStaging

Result of candidate verification and staging before activation.

Constants

FILE_UPDATE_PROVIDER_ID

Provider ID for the local-first JSON index and file artifact adapter.

UPDATE_METADATA_FORMAT_VERSION

Stable format version for update pointers and pending activation metadata.

Traits

ActivationHealthCheck

Health gate executed after an artifact becomes active.

ArtifactAuthenticityVerifier

Verifies that an artifact descriptor was published by a trusted identity.

ArtifactStore

Store contract for atomic staging and reversible activation.

UpdateFaultInjector

Fault-injection contract used by deterministic update tests.

UpdateProvider

Provider contract for listing and fetching opaque application artifacts.

Functions

artifact_signing_payload

Builds the stable byte payload covered by an artifact signature.

Type Aliases

SharedUpdateProvider

Shared update provider interface produced by deployment factories.

UpdateResult

Result returned by the update lifecycle.