fix issue (#1405)

tools/ci/setup.sh

@@ -1,25 +1,41 @@
 #!/bin/bash
-set -eo pipefail
+set -euo pipefail
 
 echo "--- Installing yarn dependencies"
 
 # Disable global cache so that we can cache `.yarn/cache` in buildkite
 yarn config set enableGlobalCache false
 
-# Immutable is the same as a frozen lockfile
-yarn --immutable
+# Check for lockfile before running yarn --immutable
+if [[ -f yarn.lock ]]; then
+    echo "--- Verifying lockfile integrity"
+    yarn --immutable || { echo "Lockfile validation failed! Ensure your lockfile is up to date."; exit 1; }
+else
+    echo "Error: yarn.lock file not found. Aborting."
+    exit 1
+fi
 
-# Need to ensure base branch is up-to-date. If not running on a PR, use `BUILDKITE_BRANCH`
-BASE_BRANCH=$BUILDKITE_PULL_REQUEST_BASE_BRANCH
+# Need to ensure base branch is up-to-date
+BASE_BRANCH="${BUILDKITE_PULL_REQUEST_BASE_BRANCH:-$BUILDKITE_BRANCH}"
 if [[ -z "$BASE_BRANCH" ]]; then
-    BASE_BRANCH=$BUILDKITE_BRANCH
+    echo "Error: Unable to determine base branch. Ensure BUILDKITE_BRANCH is set."
+    exit 1
 fi
 
 echo "--- Updating local '$BASE_BRANCH' base branch"
 
 # Required for correct Nx affected project resolution
-git fetch -f --no-tags origin $BASE_BRANCH:$BASE_BRANCH
+if git fetch -f --no-tags origin "$BASE_BRANCH:$BASE_BRANCH"; then
+    echo "--- Successfully updated '$BASE_BRANCH'"
+else
+    echo "Error: Failed to fetch base branch '$BASE_BRANCH'. Ensure it exists in the remote repository."
+    exit 1
+fi
 
 echo "--- Building required packages"
-
-yarn build
+if yarn build; then
+    echo "--- Build completed successfully"
+else
+    echo "Error: Build failed. Check the logs for details."
+    exit 1
+fi