local/bin/homesync: Snapshot subvolumes.

.local/bin/homesync

@@ -58,6 +58,27 @@ message() {
 	echo -e "$YELLOW:: $@$NORMAL"
 }
 
+section Snapshot subvolumes if older then 1 day
+while IFS= read -r fs; do
+	for subvol in private public; do
+		last=$(ls -1 .snapshots/"$subvol" | tail -1 | sed 's/_/ /')
+		if [ -z "$last" ]; then
+			continue
+		fi
+		last_date=$(date --date="$last" +%s)
+		now=$(date +%s)
+		if [ $(($now - $last_date)) -gt 86400 ]; then
+			message "Snapshot $fs/$subvol"
+			btrfs-snap "$fs/$subvol"
+		fi
+		unset now
+		unset last_date
+		unset last
+	done
+done <<EOF
+$(findmnt -t btrfs -n --output TARGET)
+EOF
+
 if [ -n "$OPT_DATAROOT" ]; then
 	section Data index
 	for i in "$OPT_DATAROOT"/*; do