mnem-transport

Offline transport for mnem: CAR v1 export/import of content-addressed subtrees, plus the frozen shapes of the remote wire protocol.

mnem-transport is the WASM-clean, tokio-free half of mnem's replication story. It implements CAR v1 reader / writer over pure std::io::{Read, Write}, so a subtree can be shipped on a USB stick, attached to an email, scp'd across an air-gap, or streamed through a pipe. It also freezes the PROTOCOL_VERSION, PROTOCOL_HEADER, and Capability vocabulary that the HTTP remote protocol is built on, plus the RemoteConfig TOML shape and the HaveSet bloom-filter trait used by fetch-blocks / push-blocks. HTTP wiring lives in mnem http; CLI glue lives in mnem-cli.

use std::fs::File;
use mnem_transport::{export, import};

// Export a subtree rooted at `head` to a CAR archive.
let mut out = File::create("backup.car")?;
export(&repo.blockstore, head, &mut out)?;

// Import the same archive into a fresh blockstore elsewhere.
let mut inp = File::open("backup.car")?;
import(&target_blockstore, &mut inp)?;

Workspace top: ../../README.md. Wire protocol: ../../.

Licensed under Apache-2.0.