Struct ImageStore 

pub struct ImageStore { /* private fields */ }

Local OCI blob store.

Implementations

impl ImageStore

pub fn new(data_dir: &Path) -> Result<Self, OciError>

pub fn has_blob(&self, digest: &str) -> bool

Check if a blob exists locally.

pub fn blob_path(&self, digest: &str) -> PathBuf

Get the path to a blob by its sha256 digest.

pub fn put_blob(&self, digest: &str, data: &[u8]) -> Result<PathBuf, OciError>

Write a blob and verify its digest.

pub fn get_blob(&self, digest: &str) -> Result<Vec<u8>, OciError>

Read a blob’s bytes.

pub fn put_manifest( &self, image: &str, tag: &str, data: &[u8], ) -> Result<(), OciError>

Save a manifest for an image reference.

pub fn get_manifest( &self, image: &str, tag: &str, ) -> Result<Option<Vec<u8>>, OciError>

Load a cached manifest. Returns Ok(None) if not cached.

pub fn list_images(&self) -> Result<Vec<(String, String, usize, u64)>, OciError>

List all cached images as (repository, tag, layers, size_bytes) tuples.

pub fn parse_manifest(data: &[u8]) -> Result<ImageManifest, OciError>

Parse an OCI/Docker manifest JSON.

pub fn parse_config(data: &[u8]) -> Result<ImageConfig, OciError>

Parse image config JSON to extract entrypoint, cmd, env, etc.

pub fn extract_layers( &self, manifest: &ImageManifest, target: &Path, ) -> Result<(), OciError>

Extract all layers of an image into a target directory (for rootfs preparation).