From 4d1b34a582481eab10640471dfaaa890d8cc7546 Mon Sep 17 00:00:00 2001
From: Jordan Liggitt <liggitt@google.com>
Date: Sun, 2 Aug 2020 00:10:01 -0400
Subject: [PATCH] Speed up update-swagger-docs

Only build genswaggertypedocs once per run instead of per-package

Speeds up the script from ~1:10 to ~0:18
---
 hack/lib/swagger.sh                   | 7 ++++++-
 hack/update-generated-swagger-docs.sh | 2 ++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/hack/lib/swagger.sh b/hack/lib/swagger.sh
index f8c4ba33ccb..99f11d91268 100644
--- a/hack/lib/swagger.sh
+++ b/hack/lib/swagger.sh
@@ -51,7 +51,12 @@ kube::swagger::gen_types_swagger_doc() {
 EOF
   } > "${TMPFILE}"
 
-  go run cmd/genswaggertypedocs/swagger_type_docs.go -s \
+  if ! which genswaggertypedocs >/dev/null; then
+    # build if needed
+    go install k8s.io/kubernetes/cmd/genswaggertypedocs
+  fi
+
+  genswaggertypedocs -s \
     "${gv_dir}/types.go" \
     -f - \
     >>  "${TMPFILE}"
diff --git a/hack/update-generated-swagger-docs.sh b/hack/update-generated-swagger-docs.sh
index 90b21f28fec..33bc54fd366 100755
--- a/hack/update-generated-swagger-docs.sh
+++ b/hack/update-generated-swagger-docs.sh
@@ -35,6 +35,8 @@ IFS=" " read -r -a GROUP_VERSIONS <<< "meta/v1 meta/v1beta1 ${KUBE_AVAILABLE_GRO
 for group_version in "${GROUP_VERSIONS[@]}"; do
   rm -f "$(kube::util::group-version-to-pkg-path "${group_version}")/types_swagger_doc_generated.go"
 done
+# ensure we have the latest genswaggertypedocs built
+go install k8s.io/kubernetes/cmd/genswaggertypedocs
 for group_version in "${GROUP_VERSIONS[@]}"; do
   kube::swagger::gen_types_swagger_doc "${group_version}" "$(kube::util::group-version-to-pkg-path "${group_version}")"
 done