Unpin all the plugins, so we can test against head b4 release.

hack/unpinRepinPluginApiDep.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+# Copyright 2019 The Kubernetes Authors.
+# SPDX-License-Identifier: Apache-2.0
+
+# This script unpins or repins the Go kustomize API dependence
+# for all the plugins in the repo.
+
+# Run this from repo root, e.g.
+#
+#   ./hack/unpinRepinPluginApiDep.sh unPin v0.1.1
+#
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+operation=$1
+version=$2
+
+if [[ ("$operation" != "unPin") && ("$operation" != "rePin") ]]; then
+  echo "unknown operation $operation"
+  exit 1
+fi
+
+function addReplace {
+  go mod edit -replace=sigs.k8s.io/kustomize/api@${version}=$1
+  go mod tidy
+}
+
+function dropReplace {
+  go mod edit -dropreplace=sigs.k8s.io/kustomize/api@${version}
+  go mod tidy
+}
+
+function forEachGoMod {
+  for goMod in $(find $2 -name 'go.mod'); do
+    d=$(dirname "${goMod}")
+    echo $d
+    (cd $d; $1 $3 )
+  done
+}
+
+function unPin {
+  forEachGoMod addReplace ./plugin/builtin              ../../../api
+  forEachGoMod addReplace ./plugin/someteam.example.com ../../../../api
+}
+
+function rePin {
+  forEachGoMod dropReplace ./plugin/builtin
+  forEachGoMod dropReplace ./plugin/someteam.example.com
+}
+
+$operation