Struct ArtifactMetadata 

pub struct ArtifactMetadata {
    pub created_unix_ms: u64,
    pub original_len: u64,
    pub source_tier: String,
}

Optional per-artifact metadata, stored as a serde-encoded sidecar next to the blob.

The blob itself is opaque content-addressed bytes; nothing in the envelope records when or from where it was produced. For list-based auditing and GC (roadmap feature #9) that provenance is useful, so DiskArtifactStore::put_with_metadata writes one of these alongside the blob and DiskArtifactStore::metadata reads it back.

Metadata is strictly optional: a plain ArtifactStore::put writes no sidecar, and DiskArtifactStore::metadata returns ArtifactError::NotFound for a blob that has none.

Fields

created_unix_ms: u64

Wall-clock creation time in Unix milliseconds, as recorded by the writer at put_with_metadata time.

original_len: u64

Length in bytes of the uncompressed payload. Lets an auditor size the store’s logical footprint without decoding every blob.

source_tier: String

Free-form origin tag (e.g. "jit-l2", "snapshot", "import") so GC policy can treat artifacts from different producers differently.

Trait Implementations

impl Clone for ArtifactMetadata

fn clone(&self) -> ArtifactMetadata

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ArtifactMetadata

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ArtifactMetadata

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for ArtifactMetadata

impl PartialEq for ArtifactMetadata

fn eq(&self, other: &ArtifactMetadata) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ArtifactMetadata

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for ArtifactMetadata