Struct UpdateCache 

pub struct UpdateCache { /* private fields */ }

Filesystem cache for resumable, opaque artifact downloads.

Implementations

impl UpdateCache

pub fn open( root: impl Into<PathBuf>, options: CacheOptions, ) -> UpdateResult<Self>

Opens or creates a cache root and its bounded subdirectories.

pub fn stage( &self, verifier: &dyn ArtifactAuthenticityVerifier, descriptor: &ArtifactDescriptor, source: &dyn ArtifactSource, transfer: &ArtifactTransferPolicy, ) -> UpdateResult<CachedArtifact>

Stages one artifact, resuming a valid partial file when possible.

pub fn artifact_path(&self, descriptor: &ArtifactDescriptor) -> PathBuf

Returns the hash-addressed artifact path for a descriptor.

pub fn descriptor_path(&self, descriptor: &ArtifactDescriptor) -> PathBuf

Returns the descriptor metadata path for a descriptor.

pub fn partial_path(&self, descriptor: &ArtifactDescriptor) -> PathBuf

Returns the resumable partial path for a descriptor.

Trait Implementations

impl Clone for UpdateCache

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UpdateCache

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

Formats the value using the given formatter.