#! /bin/bash
set -euo pipefail

BACKREST_VERSION='v1.11.2'
TMPDIR="$(mktemp -d)"

# backrest working directory
sudo mkdir -p /home/backups/backrest
sudo chown backups:backups /home/backups/backrest

curl -fL -o "${TMPDIR}/backrest.tar.gz" \
  "https://github.com/garethgeorge/backrest/releases/download/${BACKREST_VERSION}/backrest_Linux_x86_64.tar.gz"

tar -xzf "${TMPDIR}/backrest.tar.gz" -C "${TMPDIR}"

if systemctl is-active --quiet backrest; then
  sudo systemctl stop backrest
  echo "Paused backrest for update"
fi

sudo install -D -o root -g root -m 0644 ./backrest.service /etc/systemd/system/backrest.service
sudo install -o root -g root -m 0755 "${TMPDIR}/backrest" /usr/local/bin/backrest

echo "Reloading systemd service"
sudo systemctl daemon-reload
sudo systemctl enable --now backrest

rm -rf "${TMPDIR}"