rzerres/dsnap-sync
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update

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This commit is contained in:
James Barnett
2016-09-24 21:08:25 -05:00
parent adc42ae2b5
commit 87aac7b29d
1 changed files with 37 additions and 51 deletions
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88
backup
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@@ -46,18 +46,19 @@ for x in $UUIDS; do
i=$(($i+1))
done
total_mounted=$i
echo "Selected a mounted BTRFS device to backup to:"
echo "Selected a mounted BTRFS device to backup to."
while [[ $disk < 0 || $disk > $i ]]; do
for x in ${!TARGETS_ARRAY[@]}; do
echo -e "$(($x+1))) ${UUIDS_ARRAY[$x]}\t(${TARGETS_ARRAY[$x]})"
done
echo "0) Exit"
read -p "Select one: " disk
read -p "Enter a number: " disk
done
if [[ $disk == 0 ]]; then
exit 0
fi
selected_uuid="${UUIDS_ARRAY[$(($disk-1))]}"
selected_mnt="${TARGETS_ARRAY[$(($disk-1))]}"
echo "You selected the disk with UUID $selected_uuid."
if [[ -f /etc/conf.d/snapper ]]; then
@@ -69,72 +70,57 @@ fi
for x in $SNAPPER_CONFIGS; do
# shellcheck source=/dev/null
source /etc/snapper/configs/$x
echo "At '$x' configuration"
old_number=$(snapper -c "$x" list -t single | awk '/'"$selected_uuid"'/ {print $1}')
old_snapshot=$SUBVOLUME/.snapshots/$old_number/snapshot
if [[ -z "$old_number" ]]; then
echo "No backups have been performed for '$x' on this disk."
read -p "Enter name of directory to store backups: " mybackupdir
echo "This will be the initial backup for snapper configuration '$x' to this disk. This could take awhile."
BACKUPDIR="$selected_mnt/$mybackupdir"
mkdir -p $BACKUPDIR
else
mybackupdir=$(snapper -c root list -t single | awk -F"|" '/'$selected_uuid'/ {print $5}' | awk -F "," '{print $1}' | awk -F"=" '{print $2}')
BACKUPDIR="$selected_mnt/$mybackupdir"
if [[ ! -d $BACKUPDIR ]]; then
echo "ERROR: $BACKUPDIR is not a directory on $selected_uuid."
exit 1
fi
fi
new_number=$(snapper -c "$x" create --print-number)
sync
new_snapshot=$SUBVOLUME/.snapshots/$new_number/snapshot
new_info=$SUBVOLUME/.snapshots/$new_number/info.xml
echo "At '$x' configuration"
sync
backup_location=$BACKUPDIR/$x/$new_number/
echo "Backup location: $backup_location"
read -n 1 -p "Continue (y/n)? " cont_backup
echo
if [[ "$cont_backup" != "y" ]]; then
continue
fi
mkdir -p "$backup_location"
if [[ -z "$old_number" ]]; then
echo "No backups have been performed for '$x' on this disk."
read -p "Enter name of directory to store backups: " mybackupdir
BACKUPDIR="$(findmnt -n -v -t btrfs -o UUID,TARGET --list | awk '/'$selected_uuid'/ {print $2}')/$mybackupdir"
backup_location=$BACKUPDIR/$x/$new_number/
echo "This will be the initial backup for snapper configuration '$x' to this disk. This could take awhile."
echo "Backup location: $backup_location"
read -n 1 -p "Continue (y/n)? " cont_backup
echo
if [[ "$cont_backup" != "y" ]]; then
continue
fi
mkdir -p "$backup_location"
btrfs send "$new_snapshot" | btrfs receive "$backup_location"
else
mybackupdir=$(snapper -c root list -t single | awk -F"|" '/'$selected_uuid'/ {print $5}' | awk -F "," '{print $1}' | awk -F"=" '{print $2}')
BACKUPDIR="$(findmnt -n -v -t btrfs -o UUID,TARGET --list | awk '/'$selected_uuid'/ {print $2}')/$mybackupdir"
if [[ ! -d $BACKUPDIR ]]; then
echo "ERROR: $BACKUPDIR is not a directory."
exit 1
fi
backup_location=$BACKUPDIR/$x/$new_number/
echo "Backup location: $backup_location"
if [[ -d "$backup_location" ]]; then
echo "ERROR: Backup location already exists."
break
fi
read -n 1 -p "Continue (y/n)? " cont_backup
echo
if [[ "$cont_backup" != "y" ]]; then
continue
fi
mkdir -p "$backup_location"
old_snapshot=$SUBVOLUME/.snapshots/$old_number/snapshot
# Sends the difference between the new snapshot and old snapshot to
# the backup location. Using the -c flag instead of -p tells it that
# there is an identical subvolume to the old snapshot at the
# receiving location where it can get its data. This helps speed up
# the transfer.
# Sends the difference between the new snapshot and old snapshot to the
# backup location. Using the -c flag instead of -p tells it that there
# is an identical subvolume to the old snapshot at the receiving
# location where it can get its data. This helps speed up the transfer.
btrfs send "$new_snapshot" -c "$old_snapshot" | btrfs receive "$backup_location" &>/dev/null
cp "$new_info" "$backup_location"
snapper -c "$x" delete "$old_number"
fi
userdata="backupdir=$mybackupdir, uuid=$selected_uuid"