Add verify-go-workspace make target

Introduce a new `verify-go-workspace` make target executed by the
`verify` target. The pull-etcd-verify presubmit prow job will execute
it. It ensures that the Go workspace (`go.work` and `go.work.sum`) is in
sync.

Signed-off-by: Ivan Valdes <[email protected]>

Author: ivanvc

Makefile

@@ -77,7 +77,7 @@ fuzz:
 verify: verify-gofmt verify-bom verify-lint verify-dep verify-shellcheck verify-goword \
 	verify-govet verify-license-header verify-mod-tidy \
 	verify-shellws verify-proto-annotations verify-genproto verify-yamllint \
-	verify-govet-shadow verify-markdown-marker verify-go-versions
+	verify-govet-shadow verify-markdown-marker verify-go-versions verify-go-workspace
 
 .PHONY: fix
 fix: fix-bom fix-lint fix-yamllint sync-toolchain-directive update-go-workspace
@@ -217,6 +217,10 @@ clean:
 verify-go-versions:
 	./scripts/verify_go_versions.sh
 
+.PHONY: verify-go-workspace
+verify-go-workspace:
+	PASSES="go_workspace" ./scripts/test.sh
+
 .PHONY: sync-toolchain-directive
 sync-toolchain-directive:
 	./scripts/sync_go_toolchain_directive.sh

scripts/test.sh

@@ -639,6 +639,17 @@ function genproto_pass {
   "${ETCD_ROOT_DIR}/scripts/verify_genproto.sh"
 }
 
+function go_workspace_pass {
+  log_callout "Ensuring go workspace is in sync."
+
+  run go mod download
+  if [ -n "$(git status --porcelain go.work.sum)" ]; then
+    log_error "Go workspace not in sync."
+    log_warning "Suggestion: run \"make fix\" to address the issue."
+    return 255
+  fi
+}
+
 ########### MAIN ###############################################################
 
 function run_pass {