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Update backup.sh

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In case of making a backup to format the card and shoot new photos/videos, I need to be sure to have a valid backup.
I check if there is enough space on storage to make the backup, else shutting down the Pi.
User feedback in that case is not perfect, ACT led is turned off, it should exist a better way to warn the user.
This commit is contained in:
Pnumekin
2017-09-04 19:44:48 +02:00
committed by GitHub
parent 7914fb6bb9
commit b475fd4d77
1 changed files with 9 additions and 0 deletions
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backup.sh
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@@ -61,6 +61,15 @@ if [ ! -z $CARD_READER ]; then
# and use it as a directory name in the backup path # and use it as a directory name in the backup path
read -r ID < $CARD_MOUNT_POINT/CARD_ID read -r ID < $CARD_MOUNT_POINT/CARD_ID
BACKUP_PATH=$STORAGE_MOUNT_POINT/"$ID" BACKUP_PATH=$STORAGE_MOUNT_POINT/"$ID"
# Shutdown if there is not enough free space on storage
STORAGEFREE=$(df -P /dev/sda1 | awk 'NR==2 {print $4}')
TRANSFERTAMOUNT=$(($(rsync -an --stats $CARD_MOUNT_POINT/ $BACKUP_PATH | awk '/Total transferred file size:/ {print $5}' | sed 's/,//g') /1024 ))
if (($STORAGEFREE < $TRANSFERTAMOUNT)); then
sudo sh -c "echo 0 > /sys/class/leds/led0/brightness"
shutdown -h now
fi
# Perform backup using rsync # Perform backup using rsync
rsync -avh $CARD_MOUNT_POINT/ $BACKUP_PATH rsync -avh $CARD_MOUNT_POINT/ $BACKUP_PATH
# Turn off the ACT LED to indicate that the backup is completed # Turn off the ACT LED to indicate that the backup is completed