Struct Delta 

pub(crate) struct Delta {
    pub(crate) path: Utf8PathBuf,
    pub(crate) parsed: ParsedDelta,
    layout: Layout,
}

A validated oci-delta artifact, ready to be applied.

Fields

path: Utf8PathBuf

Where this was loaded from; used in diagnostics.

parsed: ParsedDelta

Parsed information about the delta.

layout: Layout

Implementations

impl Delta

pub(crate) async fn open(path: &Utf8Path) -> Result<Self>

Open and validate the delta at path, which may be an OCI layout directory or (usually) an uncompressed tar of one.

pub(crate) fn read_patch( &self, desc: &Descriptor, ) -> Result<Box<dyn BlobStream>>

Open the patch blob desc

pub(crate) fn target_manifest_digest(&self) -> &Digest

The digest of the target image’s manifest, as recorded in the delta.

pub(crate) fn validate_image_reference( &self, imgref: &ImageReference, ) -> Result<()>

pub(crate) fn target_manifest(&self) -> &ImageManifest

The target image’s manifest.

pub(crate) fn target_config(&self) -> &ImageConfiguration

The target image’s config.

pub(crate) fn source_config_digest(&self) -> &Digest

The config digest of the image this delta was built against.

pub(crate) fn pull_ref(&self) -> Result<ImageReference>

An image reference naming this delta as a local OCI layout, for handing to the image import machinery.

pub(crate) fn describe(&self) -> String

A one-line description of what applying this delta would do.

Trait Implementations

impl Debug for Delta

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

Formats the value using the given formatter.