Merge pull request #3368 from meghanajangi/apidiff-restrict

Apidiff test runs only if there are changes in api/ or exp/api/

Author: k8s-ci-robot

Makefile

@@ -331,7 +331,9 @@ APIDIFF_OLD_COMMIT ?= $(shell git rev-parse origin/main)
 
 .PHONY: apidiff
 apidiff: $(GO_APIDIFF) ## Check for API differences
-	$(GO_APIDIFF) $(APIDIFF_OLD_COMMIT) --print-compatible
+	@if (git --no-pager diff --name-only FETCH_HEAD | grep "api/"); then \
+		$(GO_APIDIFF) $(APIDIFF_OLD_COMMIT) --print-compatible; \
+	fi
 
 ##@ build: