make k8sdeps.NewFactory() importable

k8sdeps/kunstruct/factory.go

@@ -0,0 +1,96 @@
+/*
+Copyright 2018 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.
+*/
+
+package kunstruct
+
+import (
+	"bytes"
+	"io"
+	"strings"
+
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/util/yaml"
+	"sigs.k8s.io/kustomize/k8sdeps/configmapandsecret"
+	"sigs.k8s.io/kustomize/pkg/fs"
+	"sigs.k8s.io/kustomize/pkg/ifc"
+	"sigs.k8s.io/kustomize/pkg/types"
+)
+
+// KunstructurerFactoryImpl hides construction using apimachinery types.
+type KunstructurerFactoryImpl struct {
+	cmfactory  *configmapandsecret.ConfigMapFactory
+	secfactory *configmapandsecret.SecretFactory
+}
+
+var _ ifc.KunstructuredFactory = &KunstructurerFactoryImpl{}
+
+// NewKunstructuredFactoryImpl returns a factory.
+func NewKunstructuredFactoryImpl() ifc.KunstructuredFactory {
+	return &KunstructurerFactoryImpl{}
+}
+
+// SliceFromBytes returns a slice of Kunstructured.
+func (kf *KunstructurerFactoryImpl) SliceFromBytes(
+	in []byte) ([]ifc.Kunstructured, error) {
+	decoder := yaml.NewYAMLOrJSONDecoder(bytes.NewReader(in), 1024)
+	var result []ifc.Kunstructured
+	var err error
+	for err == nil || isEmptyYamlError(err) {
+		var out unstructured.Unstructured
+		err = decoder.Decode(&out)
+		if err == nil {
+			result = append(result, &UnstructAdapter{Unstructured: out})
+		}
+	}
+	if err != io.EOF {
+		return nil, err
+	}
+	return result, nil
+}
+
+func isEmptyYamlError(err error) bool {
+	return strings.Contains(err.Error(), "is missing in 'null'")
+}
+
+// FromMap returns an instance of Kunstructured.
+func (kf *KunstructurerFactoryImpl) FromMap(
+	m map[string]interface{}) ifc.Kunstructured {
+	return &UnstructAdapter{Unstructured: unstructured.Unstructured{Object: m}}
+}
+
+// MakeConfigMap returns an instance of Kunstructured for ConfigMap
+func (kf *KunstructurerFactoryImpl) MakeConfigMap(args *types.ConfigMapArgs, options *types.GeneratorOptions) (ifc.Kunstructured, error) {
+	cm, err := kf.cmfactory.MakeConfigMap(args, options)
+	if err != nil {
+		return nil, err
+	}
+	return NewKunstructuredFromObject(cm)
+}
+
+// MakeSecret returns an instance of Kunstructured for Secret
+func (kf *KunstructurerFactoryImpl) MakeSecret(args *types.SecretArgs, options *types.GeneratorOptions) (ifc.Kunstructured, error) {
+	sec, err := kf.secfactory.MakeSecret(args, options)
+	if err != nil {
+		return nil, err
+	}
+	return NewKunstructuredFromObject(sec)
+}
+
+// Set sets loader, filesystem and workdirectory
+func (kf *KunstructurerFactoryImpl) Set(fs fs.FileSystem, ldr ifc.Loader) {
+	kf.cmfactory = configmapandsecret.NewConfigMapFactory(fs, ldr)
+	kf.secfactory = configmapandsecret.NewSecretFactory(fs, ldr.Root())
+}