Add make target for generating crds through controller-gen

DEVELOPMENT.md

@@ -145,6 +145,10 @@ As you make changes to the code, you can redeploy your controller with:
    ```sh
    ko apply -P -R -f deploy/
    ```
+You may use the following command to re-generate CRDs of build and buildrun if you change their spec:
+   ```sh
+   make generate-crds
+   ```
 
 ### Tear it down
 

Makefile

@@ -71,6 +71,10 @@ IMAGE_HOST ?= quay.io
 IMAGE ?= shipwright/shipwright-operator
 TAG ?= latest
 
+# options for generating crds with controller-gen
+CONTROLLER_GEN="${GOBIN}/controller-gen"
+CRD_OPTIONS ?= "crd:trivialVersions=true,preserveUnknownFields=false"
+
 .EXPORT_ALL_VARIABLES:
 
 default: build
@@ -279,3 +283,7 @@ kind-tekton:
 kind:
 	./hack/install-kind.sh
 	./hack/install-registry.sh
+
+generate-crds:
+	./hack/install-controller-gen.sh
+	"$(CONTROLLER_GEN)" "$(CRD_OPTIONS)" rbac:roleName=manager-role webhook paths="./..." output:crd:artifacts:config=deploy/crds

hack/install-controller-gen.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+# Copyright The Shipwright Contributors
+# 
+# SPDX-License-Identifier: Apache-2.0
+
+#
+# Installs controller-gen utility via "go get".
+#
+
+set -eu
+
+# controller-gen version
+CONTROLLER_GEN_VERSION="${CONTROLLER_GEN_VERSION:-v0.4.1}"
+
+if [ ! -f "${GOPATH}/bin/controller-gen" ] ; then
+    echo "# Installing controller-gen..."
+    pushd "$(mktemp -d)" >/dev/null 2>&1
+    go get sigs.k8s.io/controller-tools/cmd/controller-gen@"${CONTROLLER_GEN_VERSION}"
+    popd >/dev/null 2>&1
+fi
+
+# print controller-gen version
+controller-gen --version