add datapacks update script

.gitignore

@@ -4,3 +4,4 @@ rclone.conf
 /grafana
 /mysql
 /portainer
+/datapacks-*/

update-datapacks.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+
+SERVER_NAME="ichigo"
+SERVER_DP_PATH="docker/games/minecraft/spigot/worlds/world/datapacks/"
+DATAPACKS_FILE=datapacks.json
+CRAFTINGTWEAKS_FILE=craftingtweaks.json
+OUT_DIR=datapacks
+
+set -e
+
+check() {
+    if ! command -v "$1" > /dev/null 2>&1; then
+        echo "error: command '$1' is not available" >&2
+        if [[ -n $2 ]]; then
+            echo "       $2"
+        fi
+        exit 1
+    fi
+}
+
+retry() {
+    local timeout=1
+    local max_retries=10
+    local n=0
+
+    until "$@"; do
+        if [[ $n -gt "$max_retries" ]]; then
+            echo "Command failed after $max_retries retries"
+            exit 1
+        fi
+        sleep "$timeout"
+        (( attempt++ ))
+    done
+}
+
+check vtdl "You can download it from https://github.com/zekrotja/vtdl/releases or via 'cargo install --git https://github.com/zekrotja/vtdl'"
+check jq
+
+out_dir="$OUT_DIR"
+
+if [ -d "$out_dir" ]; then
+    rm -rf "$out_dir"
+fi
+
+updated=0
+
+if [[ -f $DATAPACKS_FILE ]]; then
+    echo "Downloading datapacks ..."
+    vtdl download --packages "$DATAPACKS_FILE" --out-dir "$out_dir"
+    (( updated++ ))
+fi
+
+if [[ -f $CRAFTINGTWEAKS_FILE ]]; then
+    echo "Downloading craftingtweaks ..."
+    vtdl download --packages "$CRAFTINGTWEAKS_FILE" --out-dir "$out_dir"
+    (( updated++ ))
+fi
+
+if [[ $updated -lt 1 ]]; then
+    echo "error: nothing to upload" >&2
+    exit 1
+fi
+
+echo "Deleting old datapacks on server ..."
+retry ssh "$SERVER_NAME" 'find '"$SERVER_DP_PATH"' -maxdepth 1 -type f -name "*.zip" -exec rm -f {} \+'
+
+echo "Uploading new datapacks ..."
+retry scp -r "$out_dir"/* "$SERVER_NAME:$SERVER_DP_PATH"