Merge pull request #57 from lambda-0x/check-jq

fix: check jq is installed

README.md

@@ -20,7 +20,7 @@
 
 The official Dojo Starter guide, the quickest and most streamlined way to get your Dojo Autonomous World up and running. This guide will assist you with the initial setup, from cloning the repository to deploying your world.
 
-Read the full tutorial [here](https://book.dojoengine.org/cairo/hello-dojo)
+Read the full tutorial [here](https://book.dojoengine.org/tutorial/dojo-starter#hello-dojo)
 
 ---
 

scripts/default_auth.sh

@@ -2,6 +2,19 @@
 set -euo pipefail
 pushd $(dirname "$0")/..
 
+need_cmd() {
+  if ! check_cmd "$1"; then
+    printf "need '$1' (command not found)"
+    exit 1
+  fi
+}
+
+check_cmd() {
+  command -v "$1" &>/dev/null
+}
+
+need_cmd jq
+
 export RPC_URL="http://localhost:5050"
 
 export WORLD_ADDRESS=$(cat ./manifests/dev/manifest.json | jq -r '.world.address')