Backup script for Vaultwarden

backup_vaultwarden.sh

#!/usr/bin/env bash

# backup_vaultwarden.sh
#
# Backups up `db.sqlite3` and `attachments` from vaultwarden.
#
# last update: 2023.02.16.

# XXXX: edit following values
VAULTWARDEN_WORKING_DIR="/home/me/my-files/vaultwarden"
BACKUP_DIR="/home/me/my-files/backups/vaultwarden"

function prep {
    mkdir -p "$BACKUP_DIR" && cd "$VAULTWARDEN_WORKING_DIR"
}

function backup_db {
    now=$1
    db="${VAULTWARDEN_WORKING_DIR}/data/db.sqlite3"

    echo "> backing up database: ${db}"

    sqlite3 "${db}" "VACUUM INTO '${BACKUP_DIR}/db-${now}.sqlite3'"
}

function backup_attachments {
    now=$1
    dir="${VAULTWARDEN_WORKING_DIR}/data/attachments"

    if [ -d "${dir}" ]; then
        echo "> backing up attachments dir: ${dir}"

        cp -R "$dir" "${BACKUP_DIR}/attachments-${now}"
    fi
}

# do the actual job
(
    now=$(date '+%Y-%m-%d_%H%M')

    echo "> backing up vaultwarden at: ${VAULTWARDEN_WORKING_DIR}, timestamp: ${now}"

    prep && backup_db $now && backup_attachments $now
)