🌱 fix unit tests (config-gen bug)

go.mod

@@ -15,14 +15,15 @@ require (
 	golang.org/x/tools v0.1.6-0.20210820212750-d4cc65f0b2ff
 	k8s.io/apimachinery v0.23.5 // for `kubebuilder alpha config-gen`
 	sigs.k8s.io/controller-runtime v0.11.2
-	sigs.k8s.io/controller-tools v0.7.0 // for `kubebuilder alpha config-gen`
-	sigs.k8s.io/kustomize/kyaml v0.10.21 // for `kubebuilder alpha config-gen`
+	sigs.k8s.io/controller-tools v0.8.0 // for `kubebuilder alpha config-gen`
+	sigs.k8s.io/kustomize/kyaml v0.13.6 // for `kubebuilder alpha config-gen`
 	sigs.k8s.io/yaml v1.3.0
 )
 
 require (
 	github.com/PuerkitoBio/purell v1.1.1 // indirect
 	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
+	github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emirpasic/gods v1.12.0 // indirect
 	github.com/fsnotify/fsnotify v1.5.1 // indirect
@@ -44,10 +45,12 @@ require (
 	github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd // indirect
 	github.com/mailru/easyjson v0.7.6 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/mapstructure v1.4.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 // indirect
 	github.com/nxadm/tail v1.4.8 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/sergi/go-diff v1.1.0 // indirect
 	github.com/src-d/gcfg v1.4.0 // indirect

pkg/cli/alpha/config-gen/controller-gen-filter.go

@@ -64,7 +64,10 @@ func (cgr ControllerGenFilter) Filter(input []*yaml.RNode) ([]*yaml.RNode, error
 
 	// set the directory
 	b := bufferedGenerator{}
-	rt, _ := gens.ForRoots(cgr.Spec.CRDs.SourceDirectory) // ignore the spurious error
+	rt, err := gens.ForRoots(cgr.Spec.CRDs.SourceDirectory)
+	if err != nil {
+		return nil, errors.WrapPrefixf(err, "failed to produce a Runtime to run the generators against %s", cgr.Spec.CRDs.SourceDirectory)
+	}
 	rt.OutputRules = genall.OutputRules{Default: &b}
 
 	// run the generators