little-backup-box-Bram/backup.sh

#!/usr/bin/env bash

# IMPORTANT:
# Run the install-little-backup-box.sh script first
# to install the required packages and configure the system.

# Specify devices and their mount points
# and other settings
STORAGE_DEV="sda1" # Name of the storage device
STORAGE_MOUNT_POINT="/media/storage" # Mount point of the storage device
CARD_DEV="sdb1" # Name of the storage card
CARD_MOUNT_POINT="/media/card" # Mount point of the storage card
GEO_REF="GEOREF.JPG" # Name of the reference photo to be used for geotagging
SHUTD="5" # Minutes to wait before shutdown due to inactivity

# If there is a wpa_supplicant.conf file in the root of the storage device
# Rename the original config file,
# move wpa_supplicant.conf from the card to /etc/wpa_supplicant/
# Reboot to enable networking
if [ -f "$STORAGE_MOUNT_POINT/wpa_supplicant.conf" ]; then
    sudo sh -c "echo 100 > /sys/class/leds/led0/delay_on"
    mv /etc/wpa_supplicant/wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf.bak
    mv "$STORAGE_MOUNT_POINT/wpa_supplicant.conf" /etc/wpa_supplicant/wpa_supplicant.conf
    reboot
fi

# Set the ACT LED to heartbeat
sudo sh -c "echo heartbeat > /sys/class/leds/led0/trigger"

# Shutdown after a specified period of time (in minutes) if no device is connected.
sudo shutdown -h $SHUTD "Shutdown is activated. To cancel: sudo shutdown -c"

# Wait for a USB storage device (e.g., a USB flash drive)
STORAGE=$(ls /dev/* | grep $STORAGE_DEV | cut -d"/" -f3)
while [ -z ${STORAGE} ]
  do
  sleep 1
  STORAGE=$(ls /dev/* | grep $STORAGE_DEV | cut -d"/" -f3)
done

# When the USB storage device is detected, mount it
mount /dev/$STORAGE_DEV $STORAGE_MOUNT_POINT

# Cancel shutdown
sudo shutdown -c

# Set the ACT LED to blink at 1000ms to indicate that the storage device has been mounted
sudo sh -c "echo timer > /sys/class/leds/led0/trigger"
sudo sh -c "echo 1000 > /sys/class/leds/led0/delay_on"

# Wait for a card reader or a camera
CARD_READER=$(ls /dev/* | grep $CARD_DEV | cut -d"/" -f3)
until [ ! -z $CARD_READER ]
  do
  sleep 1
  CARD_READER=$(ls /dev/sd* | grep $CARD_DEV | cut -d"/" -f3)
done

# If the card reader is detected, mount it and obtain its UUID
if [ ! -z $CARD_READER ]; then
  mount /dev/$CARD_DEV $CARD_MOUNT_POINT
  # # Set the ACT LED to blink at 500ms to indicate that the card has been mounted
  sudo sh -c "echo 500 > /sys/class/leds/led0/delay_on"
  # Create  a .id random identifier file if doesn't exist
  cd $CARD_MOUNT_POINT
  if [ ! -f *.id ]; then
    touch $(date -d "today" +"%Y%m%d%H%M").id
  fi
  ID_FILE=$(ls *.id)
  ID="${ID_FILE%.*}"
  cd

# Set the backup path
BACKUP_PATH=$STORAGE_MOUNT_POINT/"$ID"

# Log the output of the lsblk command for troubleshooting
sudo lsblk > lsblk.log
  
# Perform backup using rsync
rsync -av --exclude "*.id" $CARD_MOUNT_POINT/ $BACKUP_PATH

# Geotag photos if the reference photo exists
if [ -f "$STORAGE_MOUNT_POINT/$GEO_REF" ]; then
  cd $STORAGE_MOUNT_POINT
  exiftool −overwrite_original_in_place -r -ext jpg -tagsFromFile $GEO_REF -gps:all .
fi

# Turn off the ACT LED to indicate that the backup is completed
sudo sh -c "echo 0 > /sys/class/leds/led0/brightness"
fi
# Shutdown
sync
shutdown -h now