Struct PolicyFetch 

pub struct PolicyFetch<S, V> {
    pub source: S,
    pub verifier: V,
}

A Fetch that runs fetch_release over any source and verifier, writing the proven bytes to the destination the cache gave it, and nothing when the policy refuses. HttpsFetch is this over GitHub and the public-good root; a test answers with a release of its own.

Fields

source: S

verifier: V

Trait Implementations

impl<S, V> Clone for PolicyFetch<S, V>

where S: Clone, V: Clone,

fn clone(&self) -> PolicyFetch<S, V>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<S, V> Debug for PolicyFetch<S, V>

where S: Debug, V: Debug,

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

Formats the value using the given formatter.

impl<S, V> Default for PolicyFetch<S, V>

where S: Default, V: Default,

fn default() -> PolicyFetch<S, V>

Returns the “default value” for a type.

impl<S, V> Fetch for PolicyFetch<S, V>

where S: ReleaseSource, V: AttestationVerifier,

fn fetch( &self, tag: &str, dest: &Path, progress: &mut dyn FnMut(&str), ) -> Result<Verification, String>

Download release tag’s daemon asset to dest and prove the bytes, reporting progress lines as it goes. The error is prose: the caller owns the remedies.

fn fetch_bytes( &self, tag: &str, _: &Path, progress: &mut dyn FnMut(&str), ) -> Result<Fetched, String>

Return the verified bytes. dest is a private temporary file for legacy implementations of Self::fetch; production fetches return their verified in-memory download without reading it back from disk.