Struct B2Store 

pub struct B2Store { /* private fields */ }

A content-addressable store backed by Backblaze B2 via its S3-compatible endpoint. Thin wrapper over S3Store configured with the B2 endpoint.

Implementations

impl B2Store

pub fn connect( store_url: &str, endpoint_url: Option<&str>, region: Option<&str>, ) -> Result<Self, StoreError>

Connects to a b2://bucket/prefix store using Backblaze’s S3-compatible API.

endpoint_url overrides the endpoint outright (handy for emulators or an already-known regional host). When None, the endpoint is taken from SNAPDIR_B2_TEST_ENDPOINT, and failing that derived from region (or the SNAPDIR_B2_REGION / AWS_REGION env vars, else [DEFAULT_B2_REGION]) as https://s3.<region>.backblazeb2.com.

Credentials and signing are handled by the standard AWS chain; the B2 application key id/secret map to the AWS access-key/secret-key.

Errors

StoreError::Backend if the tokio runtime cannot be created or the AWS configuration cannot be loaded (propagated from S3Store::connect).

pub fn from_s3_store(inner: S3Store) -> Self

Builds a B2Store from an already-configured S3Store (intended for tests wiring a client at an emulator/B2 endpoint).

pub fn location(&self) -> &S3Location

The parsed bucket/prefix this store targets (shared with S3Store).

Trait Implementations

impl Store for B2Store

fn get_manifest(&self, id: &str) -> Result<Manifest, StoreError>

Reads and parses the manifest stored under id’s sharded path, verifying that its bytes hash back to id before returning it.

fn fetch_files( &self, manifest: &Manifest, dest: &Path, ) -> Result<(), StoreError>

Materializes every entry of manifest under dest, pulling each referenced object from the store and reconstructing the directory tree (files, directories, permissions) rooted at dest.

fn push(&self, manifest: &Manifest, source: &Path) -> Result<(), StoreError>

Uploads the objects referenced by manifest (reading their bytes from the tree rooted at source) and then the manifest itself, filing each under its sharded address.