RZBackup

https://github.com/wellbehavedsoftware/wbs-backup

James Pharaoh james@wellbehavedsoftware.com

This is a partial Rust clone of ZBackup, along with some unique features of its own.

This project is free software and available under the [Apache 2.0 licence] (https://www.apache.org/licenses/LICENSE-2.0).

Binaries for ubuntu are available can be downloaded [here] (https://dist.wellbehavedsoftware.com/rzbackup/).

List of features

• Rust library for access to ZBackup repositories
• Supports encrypted and non encrypted formats
• RandomAccess implements Read and Seek to provide efficient random access
• Client/server utilities to efficiently restore multiple backups, sharing chunk cache
• Multi-threaded restore
• Command line decrypt utility, mostly useful for debugging

Library usage

In cargo.toml:

toml [dependencies] rzbackup = '1.0'

Example code, for demonstration (won't compile):

```rust extern crate rzbackup;

use rzbackup::Repository; use rzbackup::RandomAccess;

fn main () {

let mut repository =
    Repository::open (
        "/path/to/repository",
        Some ("/path/to/password/file"));

repository.restore (
    "/backup-name",
    output_stream ());

let mut random_access =
    RandomAccess::new (
        repository,
        "/backup-name");

do_something_with_random_access (
    random_access);

} ```

Command usage

Server

The server process listens for client connections and streams backups over a socket. It has a large cache and so will be more efficient than running separate restore processes for backed up data with lots of shared deduplicated content.

sh rzbackup-server LISTEN-ADDRESS:PORT REPOSITORY [PASSWORD-FILE]

Client

The client connects to the server and streams a backup to standard output. It can also tell the server to reload its indexes, which will be necessary if new backups have been made.

sh rzbackup-client reindex SERVER-ADDRESS:PORT rzbackup-client restore SERVER-ADDRESS:PORT BACKUP-NAME > OUTPUT-FILE

Restore

The restore command is able to perform a one-off restore. It is basically equivalent to ZBackup's own restore command.

sh rzbackup-restore REPOSITORY PASSWORD-FILE BACKUP > OUTPUT-FILE rzbackup-restore REPOSITORY '' BACKUP > OUTPUT-FILE

Decrypt

This is mostly useful for debugging. It allows you to show the decrypted contents of any backup, index or bundle file in a ZBackup repository.

sh rzbackup-decrypt REPOSITORY PASSWORD-FILE ENCRYPTED-FILE > OUTPUT-FILE