vendor update for E2E framework

Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>

vendor/sigs.k8s.io/kustomize/pkg/target/resaccumulator.go

@@ -0,0 +1,161 @@
+/*
+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 target
+
+import (
+	"fmt"
+	"log"
+	"strings"
+
+	"sigs.k8s.io/kustomize/pkg/resid"
+	"sigs.k8s.io/kustomize/pkg/resmap"
+	"sigs.k8s.io/kustomize/pkg/transformers"
+	"sigs.k8s.io/kustomize/pkg/transformers/config"
+	"sigs.k8s.io/kustomize/pkg/types"
+)
+
+// ResAccumulator accumulates resources and the rules
+// used to customize those resources.
+// TODO(monopole): Move to "accumulator" package and make members private.
+// This will make a better separation between KustTarget, which should
+// be mainly concerned with data loading, and this class, which could
+// become the home of all transformation data and logic.
+type ResAccumulator struct {
+	resMap  resmap.ResMap
+	tConfig *config.TransformerConfig
+	varSet  types.VarSet
+}
+
+func MakeEmptyAccumulator() *ResAccumulator {
+	ra := &ResAccumulator{}
+	ra.resMap = make(resmap.ResMap)
+	ra.tConfig = &config.TransformerConfig{}
+	ra.varSet = types.VarSet{}
+	return ra
+}
+
+// ResMap returns a copy of the internal resMap.
+func (ra *ResAccumulator) ResMap() resmap.ResMap {
+	result := make(resmap.ResMap)
+	for k, v := range ra.resMap {
+		result[k] = v
+	}
+	return result
+}
+
+// Vars returns a copy of underlying vars.
+func (ra *ResAccumulator) Vars() []types.Var {
+	return ra.varSet.Set()
+}
+
+func (ra *ResAccumulator) MergeResourcesWithErrorOnIdCollision(
+	resources resmap.ResMap) (err error) {
+	ra.resMap, err = resmap.MergeWithErrorOnIdCollision(
+		resources, ra.resMap)
+	return err
+}
+
+func (ra *ResAccumulator) MergeResourcesWithOverride(
+	resources resmap.ResMap) (err error) {
+	ra.resMap, err = resmap.MergeWithOverride(
+		ra.resMap, resources)
+	return err
+}
+
+func (ra *ResAccumulator) MergeConfig(
+	tConfig *config.TransformerConfig) (err error) {
+	ra.tConfig, err = ra.tConfig.Merge(tConfig)
+	return err
+}
+
+func (ra *ResAccumulator) MergeVars(incoming []types.Var) error {
+	return ra.varSet.MergeSlice(incoming)
+}
+
+func (ra *ResAccumulator) MergeAccumulator(other *ResAccumulator) (err error) {
+	err = ra.MergeResourcesWithErrorOnIdCollision(other.resMap)
+	if err != nil {
+		return err
+	}
+	err = ra.MergeConfig(other.tConfig)
+	if err != nil {
+		return err
+	}
+	return ra.varSet.MergeSet(&other.varSet)
+}
+
+// makeVarReplacementMap returns a map of Var names to
+// their final values. The values are strings intended
+// for substitution wherever the $(var.Name) occurs.
+func (ra *ResAccumulator) makeVarReplacementMap() (map[string]string, error) {
+	result := map[string]string{}
+	for _, v := range ra.Vars() {
+		matched := ra.resMap.GetMatchingIds(
+			resid.NewResId(v.ObjRef.GVK(), v.ObjRef.Name).GvknEquals)
+		if len(matched) > 1 {
+			return nil, fmt.Errorf(
+				"found %d resId matches for var %s "+
+					"(unable to disambiguate)",
+				len(matched), v)
+		}
+		if len(matched) == 1 {
+			s, err := ra.resMap[matched[0]].GetFieldValue(v.FieldRef.FieldPath)
+			if err != nil {
+				return nil, fmt.Errorf(
+					"field specified in var '%v' "+
+						"not found in corresponding resource", v)
+			}
+			result[v.Name] = s
+		} else {
+			return nil, fmt.Errorf(
+				"var '%v' cannot be mapped to a field "+
+					"in the set of known resources", v)
+		}
+	}
+	return result, nil
+}
+
+func (ra *ResAccumulator) Transform(t transformers.Transformer) error {
+	return t.Transform(ra.resMap)
+}
+
+func (ra *ResAccumulator) ResolveVars() error {
+	replacementMap, err := ra.makeVarReplacementMap()
+	if err != nil {
+		return err
+	}
+	if len(replacementMap) == 0 {
+		return nil
+	}
+	t := transformers.NewRefVarTransformer(
+		replacementMap, ra.tConfig.VarReference)
+	err = ra.Transform(t)
+	if len(t.UnusedVars()) > 0 {
+		log.Printf(
+			"well-defined vars that were never replaced: %s\n",
+			strings.Join(t.UnusedVars(), ","))
+	}
+	return err
+}
+
+func (ra *ResAccumulator) FixBackReferences() (err error) {
+	if ra.tConfig.NameReference == nil {
+		return nil
+	}
+	return ra.Transform(transformers.NewNameReferenceTransformer(
+		ra.tConfig.NameReference))
+}