From 415ec91c6df723b72ff1ef648f176b8d5a5a2dbf Mon Sep 17 00:00:00 2001
From: Olcan <olcans@gmail.com>
Date: Fri, 25 Apr 2025 12:38:38 -0700
Subject: [PATCH] detect missing sandbox image and provide useful error message
 (#174)

---
 scripts/start_sandbox.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/start_sandbox.sh b/scripts/start_sandbox.sh
index 1661fa14..18e81bde 100755
--- a/scripts/start_sandbox.sh
+++ b/scripts/start_sandbox.sh
@@ -24,6 +24,12 @@ CMD=$(scripts/sandbox_command.sh)
 IMAGE=gemini-code-sandbox
 DEBUG_PORT=9229
 
+# stop if image is missing
+if ! $CMD images -q "$IMAGE" | grep -q .; then
+    echo "ERROR: $IMAGE is missing. Try \`npm run build\` with sandboxing enabled."
+    exit 1
+fi
+
 PROJECT=$(basename "$PWD")
 WORKDIR=/sandbox/$PROJECT
 CLI_PATH=/usr/local/share/npm-global/lib/node_modules/\@gemini-code/cli