switchyard-fs 1.0.0

Switchyard: safe, atomic, reversible filesystem swaps with policy and audit
Documentation 
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use crate::fs::backup::index::{find_latest_backup_and_sidecar, find_previous_backup_and_sidecar};
use std::path::{Path, PathBuf};

/// Return (`backup_path_if_present`, `sidecar_path`) for the latest timestamped pair.
#[must_use]
pub fn latest(target: &Path, tag: &str) -> Option<(Option<PathBuf>, PathBuf)> {
    find_latest_backup_and_sidecar(target, tag)
}

/// Return (`backup_path_if_present`, `sidecar_path`) for the previous (second newest) pair.
#[must_use]
pub fn previous(target: &Path, tag: &str) -> Option<(Option<PathBuf>, PathBuf)> {
    find_previous_backup_and_sidecar(target, tag)
}