| /* |
| * 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. |
| */ |
| |
| package sample |
| |
| import ( |
| "bytes" |
| "go/format" |
| "os" |
| "path" |
| ) |
| |
| type fileGenerator struct { |
| path string |
| file string |
| context string |
| } |
| |
| var ( |
| fileMap = make(map[string]*fileGenerator) |
| ) |
| |
| func Generate(rootPath string) error { |
| for _, v := range fileMap { |
| v.path = path.Join(rootPath, v.path) |
| if err := genFile(v); err != nil { |
| return err |
| } |
| } |
| return nil |
| } |
| |
| func genFile(fg *fileGenerator) error { |
| fp, err := createFile(fg.path, fg.file) |
| if err != nil { |
| return err |
| } |
| buffer := new(bytes.Buffer) |
| if _, err := buffer.WriteString(fg.context); err != nil { |
| return err |
| } |
| code := formatCode(buffer.String()) |
| _, err = fp.WriteString(code) |
| return err |
| } |
| |
| func createFile(dir, file string) (*os.File, error) { |
| if err := os.MkdirAll(dir, os.ModePerm); err != nil { |
| return nil, err |
| } |
| return os.Create(path.Join(dir, file)) |
| } |
| |
| func formatCode(code string) string { |
| res, err := format.Source([]byte(code)) |
| if err != nil { |
| return code |
| } |
| return string(res) |
| } |