90 lines
3.1 KiB
Bash
Executable File
90 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# IMPORTANT:
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# Run the install-little-backup-box.sh script first
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# to install the required packages and configure the system.
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# Create a new configuraion file if it doesn't exist
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# and prompt for required values
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CONFIG_DIR=$(dirname "$0")
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CONFIG="${CONFIG_DIR}/remote-backup.cfg"
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if [ ! -f "$CONFIG" ]; then
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echo "Enter remote user name and press [ENTER]:"
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read USER
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echo 'USER="'$USER'"' >> "$CONFIG"
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echo "Enter remote server IP address or domain name and press [ENTER]:"
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read REMOTE
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echo 'REMOTE="'$REMOTE'"' >> "$CONFIG"
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echo "Specify target backup directory (include the trailing slash) and press [ENTER]"
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read BACKUP_DIR
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echo 'BACKUP_DIR="'$BACKUP_DIR'"' >> "$CONFIG"
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echo "Enter your Notify token and press [ENTER]."
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echo "Skip to disable:"
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read NOTIFY_TOKEN
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echo 'NOTIFY_TOKEN="'$NOTIFY_TOKEN'"' >> "$CONFIG"
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fi
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# Initialize the configuration file
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source "$CONFIG"
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# Specify backup device and its mount points,
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# and other settings
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STORAGE_DEV="sda1" # Name of the storage device
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STORAGE_MOUNT_POINT="/media/storage" # Mount point of the storage device
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SHUTD="5" # Minutes to wait before shutdown due to inactivity
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# Set the ACT LED to heartbeat
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sudo sh -c "echo heartbeat > /sys/class/leds/led0/trigger"
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# Shutdown after a specified period of time (in minutes) if no device is connected.
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sudo shutdown -h $SHUTD "Shutdown is activated. To cancel: sudo shutdown -c"
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# Wait for a USB storage device (e.g., a USB flash drive)
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STORAGE=$(ls /dev/* | grep $STORAGE_DEV | cut -d"/" -f3)
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while [ -z ${STORAGE} ]
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do
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sleep 1
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STORAGE=$(ls /dev/* | grep $STORAGE_DEV | cut -d"/" -f3)
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done
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# When the USB storage device is detected, mount it
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mount /dev/"$STORAGE_DEV" "$STORAGE_MOUNT_POINT"
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# Cancel shutdown
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sudo shutdown -c
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# Set the ACT LED to blink at 1000ms to indicate that the storage device has been mounted
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sudo sh -c "echo timer > /sys/class/leds/led0/trigger"
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sudo sh -c "echo 1000 > /sys/class/leds/led0/delay_on"
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# Perform backup using rsync
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rsync -avhz -e ssh --delete --progress "$STORAGE_MOUNT_POINT" "$USER"@"$REMOTE":"$BACKUP_DIR"
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if [ ! -z "$NOTIFY_TOKEN" ]; then
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TEXT=$(sed 's/ /%20/g' <<< "Remote backup completed.")
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curl -k \
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"https://us-central1-notify-b7652.cloudfunctions.net/sendNotification?to=${NOTIFY_TOKEN}&text=${TEXT}" \
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> /dev/null
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fi
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# Turn off the ACT LED to indicate that the backup is completed
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sudo sh -c "echo 0 > /sys/class/leds/led0/brightness"
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# Shutdown
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sync
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shutdown -h now
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