#!/bin/sh

set -o errexit
set -o nounset
set -o pipefail

backup_root="/var/lib/sfbs/backups"

for host in $(cat /var/lib/sfbs/hosts | grep -v '#'); do
    dtime="$(date '+%Y-%m-%d_%H:%M:%S')"
    latest_link="$backup_root/$host/latest"
    backup_path="$backup_root/$host/$dtime"

    mkdir -p $backup_path

    echo "pulling $host's fs..."

    rsync -avP --delete \
        sfbs@$host::sfbs/ \
        --link-dest "$latest_link" \
        --password-file="/var/lib/sfbs/rsync-password" \
        --include="/usr/local" \
        --exclude="/usr/*" \
        --exclude="/lib/*" \
        --exclude="/bin/*" \
        --exclude="/tmp/*" \
        --exclude="/sys/*" \
        --exclude="/dev/*" \
        --exclude="/proc/*" \
        --exclude="/run/*" \
        --exclude="/mnt/*" \
        --exclude="/media/*" \
        --exclude="/var/lib/sfbs/backups/*" \
        --exclude="/home/*/.rustup/*" \
        --exclude="/home/*/*Cache*/*" \
        --exclude="/home/*/*cache*/*" \
        --exclude="/home/*/.cache*/*" \
        --exclude="/home/*/.gradle/*" \
        --exclude="/home/*/.nvm/*" \
        --exclude="/home/*/Downloads/*" \
        --exclude="/home/*/Trash/*" \
        --exclude="/home/*/.config/chromium/*" \
        --exclude="/home/*/.local/*/pnpm/*" \
        --exclude="/home/*/.local/*/gnome-boxes/*" \
        --exclude="/home/*/JetBrains/Toolbox/apps/*" \
        --exclude="/home/*/code/*/dist/*" \
        --exclude="/home/*/code/*/venv/*" \
        --exclude="/home/*/code/*/target/*" \
        --exclude="/home/*/code/*/vendor/*" \
        --exclude="/home/*/code/*/output/*" \
        --exclude="/home/*/code/*/build/*" \
        --exclude="/home/*/code/*/node_modules/*" \
        "$backup_path"

    rm -rf "$latest_link"
    ln -s "$backup_path" "$latest_link"

done