RClone mount script for Synology NAS

rclone-mount-synology

#!/bin/bash

ACTION="$1"

# RClone Service Series
RCLONE="/bin/rclone"
CONFIG_FILE="/volume1/@rclone/config/rclone.conf"
MOUNT_NAME="${2:-"union_series"}"
MOUNT_POINT="${3:-"/volume1/media/series"}"
MOUNT_CACHE_DIR="/volume1/@tmp/@${MOUNT_NAME}"
LOG_FILE="/volume1/@rclone/log/${MOUNT_NAME}.log"
RC_ADDR="127.0.0.1:${4:-"5572"}"
CACHE_MODE="full"
CACHE_MAX_SIZE="3200G"
CACHE_MAX_AGE="9999h"
TPS_LIMIT="12"
POLL_INTERVAL="10s"
LOG_LEVEL="DEBUG"
#LOG_LEVEL="NOTICE"
RCLONE_VERSION="v1.56.2"

install_rclone() {
  command -v "$RCLONE" >/dev/null 2>&1 && return 0
  if [ -z "$RCLONE_VERSION" -o "$RCLONE_VERSION" == "latest" ]; then
    curl "https://rclone.org/install.sh" | bash
  elif [ "$RCLONE_VERSION" == "beta" ]; then
    curl "https://rclone.org/install.sh" | bash -s beta
  else
    cd /tmp
    curl -O "https://downloads.rclone.org/${RCLONE_VERSION}/rclone-${RCLONE_VERSION}-linux-amd64.zip"
    mkdir "/tmp/rclone-${RCLONE_VERSION}-linux-amd64"
    7z e -y -o"/tmp/rclone-${RCLONE_VERSION}-linux-amd64" "/tmp/rclone-${RCLONE_VERSION}-linux-amd64.zip" >/dev/null || exit $?
    cd rclone-*-linux-amd64
    cp rclone "$RCLONE"
    chown root:root "$RCLONE"
    chmod 755 "$RCLONE"
    cd /
    rm -f /tmp/rclone-*-linux-amd64.zip
    rm -Rf /tmp/rclone-*-linux-amd64
  fi
}

stop_mount() {
  [ -d "$MOUNT_POINT" ] || return 0
  check_mount || return 0
  [ -f "/bin/fusermount" ] || return 255
  "/bin/fusermount" -uz "$MOUNT_POINT"
  return $?
}

start_mount() {
  if [ "$EUID" -ne 0 ]; then
    echo >&2 "ERROR: Please run as root"
    exit 255
  fi

  # stop existing mount if it's mounted
  check_mount && stop_mount

  # [ -L "/sbin/mount.rclone" ] || ln -s "/bin/rclone" "/sbin/mount.rclone"
  # [ -L "/usr/bin/rclonefs" ] || ln -s "/bin/rclone" "/usr/bin/rclonefs"

  [ -d "$MOUNT_POINT" ] || mkdir -p "$MOUNT_POINT"
  [ -d "$MOUNT_CACHE_DIR" ] || mkdir -p "$MOUNT_CACHE_DIR"
  LOG_DIR="$(dirname "$LOG_FILE")"
  [ -d "$LOG_DIR" ] || mkdir -p "$LOG_DIR"
  chmod 777 "$MOUNT_POINT" "$MOUNT_CACHE_DIR" "$LOG_DIR"
  touch "$LOG_FILE"
  chmod 777 "$LOG_FILE"

  "$RCLONE" \
    mount "${MOUNT_NAME}:" \
    "$MOUNT_POINT" \
    $DAEMON_ARG \
    --config "$CONFIG_FILE" \
    --allow-other \
    --dir-cache-time "$CACHE_MAX_AGE" \
    --log-file "$LOG_FILE" \
    --log-level "$LOG_LEVEL" \
    --poll-interval $POLL_INTERVAL \
    --umask 002 \
    --cache-dir="$MOUNT_CACHE_DIR" \
    --vfs-cache-mode "$CACHE_MODE" \
    --vfs-cache-max-size "$CACHE_MAX_SIZE" \
    --vfs-cache-max-age "$CACHE_MAX_AGE" \
    --tpslimit $TPS_LIMIT \
    --tpslimit-burst $TPS_LIMIT \
    --rc \
    --rc-addr "$RC_ADDR" \
    --rc-no-auth \
    --rc-enable-metrics
  return $?
}

refresh_mount() {
  "$RCLONE" rc vfs/refresh recursive=true --no-output --rc-addr "$RC_ADDR" _async=true
  return $?
}

check_mount() {
  mount | grep -q "^${MOUNT_NAME}:\s"
  return $?
}

case "$ACTION" in
  mount|start)
    DAEMON_ARG="--daemon"
    install_rclone;
    start_mount;
    refresh_mount;
    exit $?;
  ;;
  mount-foreground|foreground)
    DAEMON_ARG=""
    install_rclone;
    start_mount;
    exit $?;
  ;;
  unmount|umount|stop)
    stop_mount;
    exit $?;
  ;;
  refresh)
    refresh_mount;
    exit $?;
  ;;
  check|checkmount)
    check_mount && echo "mounted" || echo "not mounted";
  ;;
  *)
    echo >&2 "$0 {mount|foreground|unmount|refresh|check}";
    exit 255;
  ;;
esac