From 02df3bfe6d2cb33f177119340c8538ba9d1a8fd1 Mon Sep 17 00:00:00 2001
From: Steven Thomas <steven.thomas@salesforce.com>
Date: Tue, 26 Jan 2021 11:32:20 -0500
Subject: [PATCH] Skip image pull if possible

---
 hooks/command | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/hooks/command b/hooks/command
index c3f1c42..9d5d17f 100644
--- a/hooks/command
+++ b/hooks/command
@@ -19,9 +19,13 @@ cd "$( dirname "${BASH_SOURCE[0]}" )/.."
 TAG=$(git describe --tags --exact-match 2> /dev/null || true)
 
 if [[ -n "$TAG" ]]; then
-    echo "Found tag $TAG, pulling from docker hub"
     IMAGE="$DOCKER_REPO:$TAG"
-    docker pull "$IMAGE"
+    if ! docker image inspect "$IMAGE" &> /dev/null; then
+        echo "Pulling tag $TAG from docker hub"
+        docker pull "$IMAGE"
+    else
+        echo "Tag $TAG already exists locally, skipping pull"
+    fi
 else
     echo "No tag found, building image locally"
     IMAGE=test-summary:$BUILDKITE_JOB_ID