Add snapshot.sh script

run/common/snapshot.sh

@@ -0,0 +1,40 @@
+#! /usr/bin/env -S nix shell 'nixpkgs#curl' 'nixpkgs#lz4' 'nixpkgs#gnutar' --command bash
+# shellcheck shell=bash
+
+set -euo pipefail
+
+# shellcheck disable=SC1091
+source .env
+
+# Define a local db if NODE_DB is not set
+if [[ -z "${NODE_DB-}" ]]; then
+    LOCAL_NODE_DB=./databases/node-db
+    mkdir -p $LOCAL_NODE_DB
+    NODE_DB=$LOCAL_NODE_DB
+fi
+
+# Clean the db directory
+rm -rf "${NODE_DB:?}"/*
+
+echo "Network: $NETWORK"
+
+case "$NETWORK" in
+    preprod)
+        SNAPSHOT_NAME=$(curl -s https://downloads.csnapshots.io/testnet/testnet-db-snapshot.json| jq -r .[].file_name )
+        echo "Snapshot name: $SNAPSHOT_NAME"
+        SNAPSHOT_URL="https://downloads.csnapshots.io/testnet/$SNAPSHOT_NAME"
+        ;;
+    *)
+        echo "Error: Invalid network $NETWORK"
+        exit 1
+        ;;
+esac
+
+echo "Downloading the snapshot..."
+
+curl -SL "$SNAPSHOT_URL" | lz4 -c -d - | tar -x -C "$NODE_DB"
+
+mv -f "$NODE_DB"/db/* "$NODE_DB"/
+rm -rf "$NODE_DB"/db
+
+echo "Snapshot downloaded and extracted to $NODE_DB"

run/preprod/nix/snapshot.sh

@@ -0,0 +1 @@
+../../common/snapshot.sh