studio-snapshot.sh

studio-snapshot () {
    dataset="$1"
    . /Software/Sofin/share/loader
    if [ -z "${dataset}" ]; then
        error "No Studio dataset name specified!"
    else
        stamp="$(date +%F_%H:%M:%S 2>/dev/null)" && \
        zfs snapshot "Studio/${dataset}@${stamp}" && \
        permnote "Snapshot successfully created for: $(distn "Studio/${dataset}@${stamp}")"
        ping -c1 losbandos >/dev/null 2>&1
        if [ "$?" = "0" ]; then
            previous_snapshot_local="$(zfs list -t snap 2>/dev/null | grep "${dataset}@" 2>/dev/null | tail -n2 2>/dev/null | head -n1 2>/dev/null | awk '{print $1;}' 2>/dev/null)"
            last_snapshot_remote="$(ssh losbandos "zfs list -t snap 2>/dev/null | grep '${dataset}@' 2>/dev/null | tail -n1 2>/dev/null | awk '{print \$1;}' 2>/dev/null")"
            if [ -z "${previous_snapshot_local}" ]; then
                error "No previous snapshot available for dataset: Studio/${dataset}!"
            else
                permnote "Previous snapshot: $(distn "${previous_snapshot_local}")"
            fi
            permnote "Remote backup host available. Sending last increment: $(distn "Studio/${dataset}@${stamp}")"
            if [ -z "${last_snapshot_remote}" ]; then
                zfs send -I ${previous_snapshot_local} "Studio/${dataset}@${stamp}" | \
                    ssh losbandos "sudo zfs recv -F Studio/${dataset}"
            else
                zfs send -I ${last_snapshot_remote} "Studio/${dataset}@${stamp}" | \
                    ssh losbandos "sudo zfs recv -F Studio/${dataset}"
            fi
        else
            warn "No remote available! Skipping remote push."
        fi
    fi
}