| // Licensed to Apache Software Foundation (ASF) under one or more contributor |
| // license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright |
| // ownership. Apache Software Foundation (ASF) licenses this file to you 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 tools |
| |
| import ( |
| "fmt" |
| "io/ioutil" |
| "os" |
| |
| "gopkg.in/yaml.v3" |
| ) |
| |
| type Catalog struct { |
| Name string `yaml:"name,omitempty"` |
| Path string `yaml:"path,omitempty"` |
| Catalog []*Catalog `yaml:"catalog,omitempty"` |
| } |
| |
| // LoadCatalog data from file |
| func LoadCatalog(filename string) (*Catalog, error) { |
| bytes, err := ioutil.ReadFile(filename) |
| if err != nil { |
| return nil, fmt.Errorf("cannot read the menu file: %v", err) |
| } |
| |
| catalog := Catalog{} |
| err = yaml.Unmarshal(bytes, &catalog) |
| if err != nil { |
| return nil, fmt.Errorf("cannot unmarshal menu file: %v", err) |
| } |
| return &catalog, nil |
| } |
| |
| // Find Catalog by paths |
| func (c *Catalog) Find(namePaths ...string) *Catalog { |
| if c.Catalog == nil { |
| return nil |
| } |
| |
| childrens := c.Catalog |
| finded := c |
| for _, name := range namePaths { |
| finded = nil |
| for _, cc := range childrens { |
| if cc.Name == name { |
| finded = cc |
| break |
| } |
| } |
| if finded == nil { |
| return nil |
| } |
| childrens = finded.Catalog |
| } |
| return finded |
| } |
| |
| func (c *Catalog) Save(filename string) error { |
| content := []byte(`# Licensed to the Apache Software Foundation (ASF) under one |
| # or more contributor license agreements. See the NOTICE file |
| # distributed with this work for additional information |
| # regarding copyright ownership. The ASF licenses this file |
| # to you 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. |
| |
| `) |
| |
| marshal, err := yaml.Marshal(c) |
| if err != nil { |
| return err |
| } |
| |
| if err := ioutil.WriteFile(filename, append(content, marshal...), os.ModePerm); err != nil { |
| return fmt.Errorf("cannot write catalog: %v", err) |
| } |
| return nil |
| } |