diff --git a/hack/boilerplate/boilerplate.py b/hack/boilerplate/boilerplate.py
index 8473dad20e3..f2a47abb5a4 100755
--- a/hack/boilerplate/boilerplate.py
+++ b/hack/boilerplate/boilerplate.py
@@ -159,7 +159,9 @@ skipped_dirs = ['third_party', '_gopath', '_output', '.git', 'cluster/env.sh',
 
 # list all the files contain 'DO NOT EDIT', but are not generated
 skipped_ungenerated_files = [
-    'hack/lib/swagger.sh', 'hack/boilerplate/boilerplate.py']
+    'hack/update-generated-swagger-docs.sh',
+    'hack/boilerplate/boilerplate.py'
+]
 
 
 def normalize_files(files):
diff --git a/hack/lib/swagger.sh b/hack/lib/swagger.sh
deleted file mode 100644
index ba2a59c7f45..00000000000
--- a/hack/lib/swagger.sh
+++ /dev/null
@@ -1,68 +0,0 @@
-#!/usr/bin/env bash
-
-# Copyright 2016 The Kubernetes Authors.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Contains swagger related util functions.
-#
-set -o errexit
-set -o nounset
-set -o pipefail
-
-# Generates types_swagger_doc_generated file for the given group version.
-# $1: Name of the group version
-# $2: Path to the directory where types.go for that group version exists. This
-# is the directory where the file will be generated.
-kube::swagger::gen_types_swagger_doc() {
-  local group_version=$1
-  local gv_dir=$2
-  local TMPFILE
-  TMPFILE="${TMPDIR:-/tmp}/types_swagger_doc_generated.$(date +%s).go"
-
-  echo "Generating swagger type docs for ${group_version} at ${gv_dir}"
-
-  {
-    echo -e "$(cat hack/boilerplate/boilerplate.generatego.txt)\n"
-    echo "package ${group_version##*/}"
-    cat <<EOF
-
-// This file contains a collection of methods that can be used from go-restful to
-// generate Swagger API documentation for its models. Please read this PR for more
-// information on the implementation: https://github.com/emicklei/go-restful/pull/215
-//
-// TODOs are ignored from the parser (e.g. TODO(andronat):... || TODO:...) if and only if
-// they are on one line! For multiple line or blocks that you want to ignore use ---.
-// Any context after a --- is ignored.
-//
-// Those methods can be generated by using hack/update-generated-swagger-docs.sh
-
-// AUTO-GENERATED FUNCTIONS START HERE. DO NOT EDIT.
-EOF
-  } > "${TMPFILE}"
-
-  if ! which genswaggertypedocs >/dev/null; then
-    # build if needed
-    GO111MODULE=on GOPROXY=off go install k8s.io/kubernetes/cmd/genswaggertypedocs
-  fi
-
-  genswaggertypedocs -s \
-    "${gv_dir}/types.go" \
-    -f - \
-    >>  "${TMPFILE}"
-
-  echo "// AUTO-GENERATED FUNCTIONS END HERE" >> "${TMPFILE}"
-
-  gofmt -w -s "${TMPFILE}"
-  mv "${TMPFILE}" "${gv_dir}/types_swagger_doc_generated.go"
-}
diff --git a/hack/update-generated-swagger-docs.sh b/hack/update-generated-swagger-docs.sh
index ba5c7c4edec..dedf8e7db42 100755
--- a/hack/update-generated-swagger-docs.sh
+++ b/hack/update-generated-swagger-docs.sh
@@ -25,9 +25,48 @@ set -o pipefail
 
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
-source "${KUBE_ROOT}/hack/lib/swagger.sh"
 
-kube::golang::setup_env
+# Generates types_swagger_doc_generated file for the given group version.
+# $1: Name of the group version
+# $2: Path to the directory where types.go for that group version exists. This
+# is the directory where the file will be generated.
+gen_types_swagger_doc() {
+  local group_version=$1
+  local gv_dir=$2
+  local TMPFILE
+  TMPFILE="${TMPDIR:-/tmp}/types_swagger_doc_generated.$(date +%s).go"
+
+  echo "Generating swagger type docs for ${group_version} at ${gv_dir}"
+
+  {
+    echo -e "$(cat hack/boilerplate/boilerplate.generatego.txt)\n"
+    echo "package ${group_version##*/}"
+    cat <<EOF
+
+// This file contains a collection of methods that can be used from go-restful to
+// generate Swagger API documentation for its models. Please read this PR for more
+// information on the implementation: https://github.com/emicklei/go-restful/pull/215
+//
+// TODOs are ignored from the parser (e.g. TODO(andronat):... || TODO:...) if and only if
+// they are on one line! For multiple line or blocks that you want to ignore use ---.
+// Any context after a --- is ignored.
+//
+// Those methods can be generated by using hack/update-generated-swagger-docs.sh
+
+// AUTO-GENERATED FUNCTIONS START HERE. DO NOT EDIT.
+EOF
+  } > "${TMPFILE}"
+
+  _output/bin/genswaggertypedocs -s \
+    "${gv_dir}/types.go" \
+    -f - \
+    >>  "${TMPFILE}"
+
+  echo "// AUTO-GENERATED FUNCTIONS END HERE" >> "${TMPFILE}"
+
+  gofmt -w -s "${TMPFILE}"
+  mv "${TMPFILE}" "${gv_dir}/types_swagger_doc_generated.go"
+}
 
 IFS=" " read -r -a GROUP_VERSIONS <<< "meta/v1 meta/v1beta1 ${KUBE_AVAILABLE_GROUP_VERSIONS}"
 
@@ -35,8 +74,11 @@ 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
-GO111MODULE=on GOPROXY=off go install k8s.io/kubernetes/cmd/genswaggertypedocs
+
+# Ensure we have the latest genswaggertypedocs built
+hack/make-rules/build.sh ./cmd/genswaggertypedocs
+
+# Regenerate files.
 for group_version in "${GROUP_VERSIONS[@]}"; do
-  kube::swagger::gen_types_swagger_doc "${group_version}" "$(kube::util::group-version-to-pkg-path "${group_version}")"
+  gen_types_swagger_doc "${group_version}" "$(kube::util::group-version-to-pkg-path "${group_version}")"
 done
diff --git a/hack/verify-generated-swagger-docs.sh b/hack/verify-generated-swagger-docs.sh
index bda93a84533..2d58df1b593 100755
--- a/hack/verify-generated-swagger-docs.sh
+++ b/hack/verify-generated-swagger-docs.sh
@@ -26,59 +26,21 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-kube::golang::setup_env
+kube::util::ensure_clean_working_dir
 
-_tmpdir="$(kube::realpath "$(mktemp -d -t swagger-docs.XXXXXX)")"
-function swagger_cleanup {
-  rm -rf "${_tmpdir}"
-}
-kube::util::trap_add swagger_cleanup EXIT
+_tmpdir="$(kube::realpath "$(mktemp -d -t "$(basename "$0").XXXXXX")")"
+git worktree add -f -q "${_tmpdir}" HEAD
+kube::util::trap_add "git worktree remove -f ${_tmpdir}" EXIT
+cd "${_tmpdir}"
 
-# Copy the contents of the kube directory into the nice clean place
-_kubetmp="${_tmpdir}/src/k8s.io"
-mkdir -p "${_kubetmp}"
-# should create ${_kubetmp}/kubernetes
-git archive --format=tar --prefix=kubernetes/ "$(git write-tree)" | (cd "${_kubetmp}" && tar xf -)
-_kubetmp="${_kubetmp}/kubernetes"
-# Do all our work in the new GOPATH
-export GOPATH="${_tmpdir}"
+# Update the generated swagger docs
+hack/update-generated-swagger-docs.sh
 
-find_files() {
-  find . -not \( \
-      \( \
-        -wholename './output' \
-        -o -wholename './.git' \
-        -o -wholename './_output' \
-        -o -wholename './_gopath' \
-        -o -wholename './release' \
-        -o -wholename './target' \
-        -o -wholename '*/third_party/*' \
-        -o -wholename '*/vendor/*' \
-        -o -wholename './staging/src/k8s.io/client-go/*vendor/*' \
-      \) -prune \
-    \) -name 'types_swagger_doc_generated.go'
-}
-while IFS=$'\n' read -r line; do TARGET_FILES+=("$line"); done < <(find_files)
-
-pushd "${_kubetmp}" > /dev/null 2>&1
-  # Update the generated swagger docs
-  hack/update-generated-swagger-docs.sh
-popd > /dev/null 2>&1
-
-ret=0
-
-pushd "${KUBE_ROOT}" > /dev/null 2>&1
-  # Test for diffs
-  _output=""
-  for file in "${TARGET_FILES[@]}"; do
-    _output="${_output}$(diff -Naupr -I 'Auto generated by' "${KUBE_ROOT}/${file}" "${_kubetmp}/${file}")" || ret=1
-  done
-
-  if [[ ${ret} -gt 0 ]]; then
-    echo "Generated swagger type documentation is out of date:" >&2
-    echo "${_output}" >&2
-    exit ${ret}
-  fi
-popd > /dev/null 2>&1
-
-echo "Generated swagger type documentation up to date."
+# Test for diffs
+diffs=$(git status --porcelain | wc -l)
+if [[ ${diffs} -gt 0 ]]; then
+  echo "Generated swagger type documentation is out of date:" >&2
+  git diff
+  echo "Please run 'hack/update-generated-swagger-docs.sh'" >&2
+  exit 1
+fi