auto checkpointing

Signed-off-by: wowario <wowario@protonmail.com>

checkpoint.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+while true
+do
+	echo "Checkpointing"
+	height=$( curl -s http://127.0.0.1:34568/json_rpc -d '{"jsonrpc":"2.0","id":"0","method":"get_info"}' -H 'Content-Type: application/json' | jq -r '.result.height' )
+	echo "Starting height: $height"
+	declare -i value
+	value=$height-60
+	echo "Roll back 60 blocks. New height: $value"
+	echo "Unix time: $EPOCHSECONDS"
+	/home/ubuntu/wownero/build/Linux/master/release/bin/wownero-blockchain-export --blocksdat --block-stop $value --output-file /home/ubuntu/wownero/src/blocks/archive/checkpoint_$value.dat &
+	sleep 10s
+	sha256sum /home/ubuntu/wownero/src/blocks/archive/checkpoint_$value.dat
+	echo "Sleeping..."
+	echo "Press [CTRL+C] to stop..."
+	sleep 6h
+done