コメント付きの JSON (JSONC) を JSON にコンバート
JSON ファイルってコメント付けておかないとすぐになんだか分からなくなるのです。
“github.com/tidwall/jsonc” を使いました。
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 |
/* Name : jsonctojson Modified : 2022-06-30 $ go build -ldflags "-s -w" -trimpath . */ package main import ( "bytes" "encoding/json" "flag" "fmt" "io" "io/ioutil" "os" "path/filepath" "strings" "sync" "time" "github.com/fsnotify/fsnotify" "github.com/tidwall/jsonc" ) func readAll(filename string) (b []byte, err error) { file, err := os.Open(filename) if err != nil { return } defer file.Close() return ioutil.ReadAll(file) } func backup(srcPath, dstPath string) error { src, err := os.Open(srcPath) if err != nil { return err } defer src.Close() dst, err := os.Create(dstPath) if err != nil { return err } defer dst.Close() _, err = io.Copy(dst, src) return err } func convert(srcJsonc string) error { ext := filepath.Ext(srcJsonc) if strings.Compare(strings.ToLower(ext), ".jsonc") != 0 { puterr(fmt.Sprintf("not .jsonc: %s", srcJsonc)) return fmt.Errorf("not .jsonc") } dir := filepath.Dir(srcJsonc) base := filepath.Base(srcJsonc) outJson := filepath.Join(dir, base[:len(base)-len(ext)]) + ".json" bakJson := filepath.Join(dir, base[:len(base)-len(ext)]) + ".bak" state, err := os.Stat(srcJsonc) if err != nil { puterr(fmt.Sprintf("%s: %s", err, srcJsonc)) return err } b, err := readAll(srcJsonc) if err != nil { puterr(fmt.Sprintf("%s: %s", err, srcJsonc)) return err } b = jsonc.ToJSON(b) var jsonAny interface{} if err = json.Unmarshal(b, &jsonAny); err != nil { puterr(fmt.Sprintf("%s: %s", err, srcJsonc)) return err } var formatedJSON bytes.Buffer if err = json.Indent(&formatedJSON, b, "", " "); err != nil { // indent puterr(fmt.Sprintf("%s: %s", err, srcJsonc)) return err } if err = backup(srcJsonc, bakJson); err != nil { puterr(fmt.Sprintf("%s: %s", err, srcJsonc)) return err } if err = ioutil.WriteFile(outJson, formatedJSON.Bytes(), state.Mode()); err != nil { puterr(fmt.Sprintf("%s: %s", err, srcJsonc)) return err } fmt.Println(formatedJSON.String()) puterr(fmt.Sprintf("%s ==> %s, backup: %s", srcJsonc, outJson, bakJson)) return err } func puterr(s string) { fmt.Fprintf(os.Stderr, "%s[%s] %s\n", exeName, time.Now().Format("2006-01-02 15:04:05"), s) } func watch(wg *sync.WaitGroup) (watcher *fsnotify.Watcher, err error) { if watcher, err = fsnotify.NewWatcher(); err != nil { return } go func() { defer watcher.Close() wg.Add(1) for { select { case event, ok := <-watcher.Events: if !ok { break } state, err := os.Stat(event.Name) if err != nil { puterr(fmt.Sprintf("%s", err)) continue } if state.IsDir() { if event.Op&fsnotify.Create == fsnotify.Create { watcher.Add(event.Name) } else if event.Op&fsnotify.Remove == fsnotify.Remove { watcher.Remove(event.Name) } else if event.Op&fsnotify.Rename == fsnotify.Rename { watcher.Add(event.Name) // to watcher.Remove(event.String()) // from } } else { if event.Op&fsnotify.Write == fsnotify.Write { convert(event.Name) } } case err, ok := <-watcher.Errors: if !ok { break } puterr(fmt.Sprintf("%s", err)) } } // for wg.Done() }() return } var exeName string func main() { exeName = filepath.Base(os.Args[0]) wg := &sync.WaitGroup{} var ( flagWatcher bool ) flag.BoolVar(&flagWatcher, "watch", false, "watching file or directory") Usage := func() { fmt.Fprintf(os.Stderr, "Usage: %s [options] <file|directory...>\n", exeName) flag.PrintDefaults() } flag.Parse() args := flag.Args() if len(args) == 0 { Usage() os.Exit(1) } var err error var w *fsnotify.Watcher if flagWatcher { w, err = watch(wg) if err != nil { puterr(fmt.Sprintf("%s", err)) os.Exit(1) } } for _, path := range args { puterr(fmt.Sprintf("%s", path)) state, err := os.Stat(path) if err != nil { puterr(fmt.Sprintf("%s", err)) continue } if !state.IsDir() { convert(path) if flagWatcher { if err := w.Add(path); err != nil { puterr(fmt.Sprintf("%s", err)) // os.Exit(1) } } continue } if err = filepath.Walk(path, func(path string, info os.FileInfo, err error) error { if err != nil { puterr(fmt.Sprintf("%s", err)) // os.Exit(1) } if info.IsDir() { if flagWatcher { if err := w.Add(path); err != nil { puterr(fmt.Sprintf("%s", err)) // os.Exit(1) } } return nil } convert(path) return nil }); err != nil { puterr(fmt.Sprintf("%s", err)) os.Exit(1) } } wg.Wait() os.Exit(0) } |
—