From 1d4208ed3c89348acd45a997c848ff6e07700455 Mon Sep 17 00:00:00 2001
From: yuyr <yuyr@zgclab.edu.cn>
Date: Thu, 23 Oct 2025 14:43:45 +0800
Subject: [PATCH] =?UTF-8?q?[#29]=E5=B7=B2=E7=BB=8F=E5=AD=98=E5=9C=A8?=
 =?UTF-8?q?=E7=9A=84=E9=95=9C=E5=83=8F=E5=B0=B1=E4=B8=8D=E5=86=8D=E6=8B=89?=
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---
 build/build_images.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/build/build_images.sh b/build/build_images.sh
index b4a023c..d56b79e 100755
--- a/build/build_images.sh
+++ b/build/build_images.sh
@@ -151,6 +151,12 @@ pull_base_image() {
   local attempts=${2:-3}
   local delay=${3:-5}
 
+  # If the image already exists locally, skip pulling.
+  if docker image inspect "$image_ref" >/dev/null 2>&1; then
+    echo "   Local image present; skip pull: $image_ref"
+    return 0
+  fi
+
   for ((i=1; i<=attempts; i++)); do
     echo "   Pulling base image ($i/$attempts): $image_ref"
     if docker pull "$image_ref" >/dev/null; then