| // Copyright Istio 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 translate |
| |
| import ( |
| "gopkg.in/yaml.v2" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go-pixiu/operator/pkg/tpath" |
| "github.com/apache/dubbo-go-pixiu/operator/pkg/util" |
| ) |
| |
| // YAMLTree takes an input tree inTreeStr, a partially constructed output tree outTreeStr, and a map of |
| // translations of source-path:dest-path in pkg/tpath format. It returns an output tree with paths from the input |
| // tree, translated and overlaid on the output tree. |
| func YAMLTree(inTreeStr, outTreeStr string, translations map[string]string) (string, error) { |
| inTree := make(map[string]interface{}) |
| if err := yaml.Unmarshal([]byte(inTreeStr), &inTree); err != nil { |
| return "", err |
| } |
| outTree := make(map[string]interface{}) |
| if err := yaml.Unmarshal([]byte(outTreeStr), &outTree); err != nil { |
| return "", err |
| } |
| |
| for inPath, translation := range translations { |
| path := util.PathFromString(inPath) |
| node, found, err := tpath.Find(inTree, path) |
| if err != nil { |
| return "", err |
| } |
| if !found { |
| continue |
| } |
| |
| if err := tpath.MergeNode(outTree, util.PathFromString(translation), node); err != nil { |
| return "", err |
| } |
| } |
| |
| outYAML, err := yaml.Marshal(outTree) |
| if err != nil { |
| return "", err |
| } |
| return string(outYAML), nil |
| } |