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little-backup-box-Bram/scripts/card-backup.sh
2018-08-23 13:04:48 +02:00

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#!/usr/bin/env bash
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# 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
SHUTD="5" # Minutes to wait before shutdown due to inactivity
# 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 "$CARD_MOUNT_POINT"
if [ ! -f *.id ]; then
random=$(echo $RANDOM)
touch $(date -d "today" +"%Y%m%d%H%M")-$random.id
fi
ID_FILE=$(ls *.id)
ID="${ID_FILE%.*}"
cd
# Set the backup path
BACKUP_PATH="$STORAGE_MOUNT_POINT"/"$ID"
# Perform backup using rsync
rsync -ah --exclude "*.id" "$CARD_MOUNT_POINT"/ "$BACKUP_PATH"
# 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