|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "archive/zip" |
| 5 | + "encoding/json" |
| 6 | + "github.com/fsnotify/fsnotify" |
| 7 | + "github.com/google/uuid" |
| 8 | + "io" |
| 9 | + "log" |
| 10 | + "os" |
| 11 | + "path/filepath" |
| 12 | + "time" |
| 13 | +) |
| 14 | + |
| 15 | +type Config struct { |
| 16 | + WatchDir string `json:"watchDir"` |
| 17 | + ZipDir string `json:"zipDir"` |
| 18 | + JsonFile string `json:"jsonFile"` |
| 19 | + ZipFileName string `json:"zipFileName"` |
| 20 | + Zip bool `json:"zip"` |
| 21 | +} |
| 22 | + |
| 23 | +var ( |
| 24 | + config Config |
| 25 | + lastModifiedTime time.Time |
| 26 | +) |
| 27 | + |
| 28 | +func main() { |
| 29 | + loadConfig() |
| 30 | + |
| 31 | + if config.WatchDir == config.ZipDir { |
| 32 | + log.Fatal("Watch directory and zip directory cannot be the same.") |
| 33 | + } |
| 34 | + |
| 35 | + watcher, err := fsnotify.NewWatcher() |
| 36 | + if err != nil { |
| 37 | + log.Fatal(err) |
| 38 | + } |
| 39 | + defer watcher.Close() |
| 40 | + |
| 41 | + done := make(chan bool) |
| 42 | + go func() { |
| 43 | + for { |
| 44 | + select { |
| 45 | + case event, ok := <-watcher.Events: |
| 46 | + if !ok { |
| 47 | + return |
| 48 | + } |
| 49 | + if event.Op&fsnotify.Write == fsnotify.Write || event.Op&fsnotify.Create == fsnotify.Create { |
| 50 | + info, err := os.Stat(event.Name) |
| 51 | + if err != nil { |
| 52 | + log.Println("Error:", err) |
| 53 | + continue |
| 54 | + } |
| 55 | + if info.ModTime().After(lastModifiedTime) { |
| 56 | + log.Println("Modified file:", event.Name) |
| 57 | + updateJSONFile() |
| 58 | + if config.Zip { |
| 59 | + err := zipFolderContents(config.WatchDir, filepath.Join(config.ZipDir, config.ZipFileName)) |
| 60 | + if err != nil { |
| 61 | + return |
| 62 | + } |
| 63 | + } else { |
| 64 | + err := copyFolderContents(config.WatchDir, config.ZipDir) |
| 65 | + if err != nil { |
| 66 | + return |
| 67 | + } |
| 68 | + } |
| 69 | + } |
| 70 | + } |
| 71 | + case err, ok := <-watcher.Errors: |
| 72 | + if !ok { |
| 73 | + return |
| 74 | + } |
| 75 | + log.Println("Error:", err) |
| 76 | + } |
| 77 | + } |
| 78 | + }() |
| 79 | + |
| 80 | + err = watcher.Add(config.WatchDir) |
| 81 | + if err != nil { |
| 82 | + log.Fatal(err) |
| 83 | + } |
| 84 | + |
| 85 | + err = filepath.Walk(config.WatchDir, func(path string, info os.FileInfo, err error) error { |
| 86 | + if err != nil { |
| 87 | + return err |
| 88 | + } |
| 89 | + if info.IsDir() { |
| 90 | + return watcher.Add(path) |
| 91 | + } |
| 92 | + return nil |
| 93 | + }) |
| 94 | + if err != nil { |
| 95 | + log.Fatal(err) |
| 96 | + } |
| 97 | + |
| 98 | + <-done |
| 99 | +} |
| 100 | + |
| 101 | +func loadConfig() { |
| 102 | + file, err := os.Open("config.json") |
| 103 | + if err != nil { |
| 104 | + log.Fatal(err) |
| 105 | + } |
| 106 | + defer file.Close() |
| 107 | + |
| 108 | + decoder := json.NewDecoder(file) |
| 109 | + err = decoder.Decode(&config) |
| 110 | + if err != nil { |
| 111 | + log.Fatal(err) |
| 112 | + } |
| 113 | +} |
| 114 | + |
| 115 | +func updateJSONFile() { |
| 116 | + filePath := filepath.Join(config.WatchDir, config.JsonFile) |
| 117 | + file, err := os.ReadFile(filePath) |
| 118 | + if err != nil { |
| 119 | + log.Fatal(err) |
| 120 | + } |
| 121 | + |
| 122 | + var jsonConfig struct { |
| 123 | + FormatVersion int `json:"format_version"` |
| 124 | + Header struct { |
| 125 | + Description string `json:"description"` |
| 126 | + Name string `json:"name"` |
| 127 | + UUID string `json:"uuid"` |
| 128 | + Version []int `json:"version"` |
| 129 | + MinEngineVersion []int `json:"min_engine_version"` |
| 130 | + } `json:"header"` |
| 131 | + Modules []struct { |
| 132 | + Description string `json:"description"` |
| 133 | + Type string `json:"type"` |
| 134 | + UUID string `json:"uuid"` |
| 135 | + Version []int `json:"version"` |
| 136 | + } `json:"modules"` |
| 137 | + } |
| 138 | + |
| 139 | + err = json.Unmarshal(file, &jsonConfig) |
| 140 | + if err != nil { |
| 141 | + log.Fatal(err) |
| 142 | + } |
| 143 | + |
| 144 | + jsonConfig.Header.UUID = uuid.New().String() |
| 145 | + for i := range jsonConfig.Modules { |
| 146 | + jsonConfig.Modules[i].UUID = uuid.New().String() |
| 147 | + } |
| 148 | + |
| 149 | + updatedFile, err := json.MarshalIndent(jsonConfig, "", " ") |
| 150 | + if err != nil { |
| 151 | + log.Fatal(err) |
| 152 | + } |
| 153 | + |
| 154 | + err = os.WriteFile(filePath, updatedFile, 0644) |
| 155 | + if err != nil { |
| 156 | + log.Fatal(err) |
| 157 | + } |
| 158 | + |
| 159 | + lastModifiedTime = time.Now() |
| 160 | +} |
| 161 | + |
| 162 | +func zipFolderContents(source, target string) error { |
| 163 | + zipfile, err := os.Create(target) |
| 164 | + if err != nil { |
| 165 | + return err |
| 166 | + } |
| 167 | + defer zipfile.Close() |
| 168 | + |
| 169 | + archive := zip.NewWriter(zipfile) |
| 170 | + defer archive.Close() |
| 171 | + |
| 172 | + filepath.Walk(source, func(path string, info os.FileInfo, err error) error { |
| 173 | + if err != nil { |
| 174 | + return err |
| 175 | + } |
| 176 | + |
| 177 | + if path == source { |
| 178 | + return nil |
| 179 | + } |
| 180 | + |
| 181 | + header, err := zip.FileInfoHeader(info) |
| 182 | + if err != nil { |
| 183 | + return err |
| 184 | + } |
| 185 | + |
| 186 | + header.Name, err = filepath.Rel(source, path) |
| 187 | + if err != nil { |
| 188 | + return err |
| 189 | + } |
| 190 | + |
| 191 | + if info.IsDir() { |
| 192 | + header.Name += "/" |
| 193 | + } else { |
| 194 | + header.Method = zip.Deflate |
| 195 | + } |
| 196 | + |
| 197 | + writer, err := archive.CreateHeader(header) |
| 198 | + if err != nil { |
| 199 | + return err |
| 200 | + } |
| 201 | + |
| 202 | + if info.IsDir() { |
| 203 | + return nil |
| 204 | + } |
| 205 | + |
| 206 | + file, err := os.Open(path) |
| 207 | + if err != nil { |
| 208 | + return err |
| 209 | + } |
| 210 | + defer file.Close() |
| 211 | + |
| 212 | + _, err = io.Copy(writer, file) |
| 213 | + return err |
| 214 | + }) |
| 215 | + |
| 216 | + return err |
| 217 | +} |
| 218 | + |
| 219 | +func copyFolderContents(source, target string) error { |
| 220 | + return filepath.Walk(source, func(path string, info os.FileInfo, err error) error { |
| 221 | + if err != nil { |
| 222 | + return err |
| 223 | + } |
| 224 | + |
| 225 | + if path == source { |
| 226 | + return nil |
| 227 | + } |
| 228 | + |
| 229 | + relPath, err := filepath.Rel(source, path) |
| 230 | + if err != nil { |
| 231 | + return err |
| 232 | + } |
| 233 | + |
| 234 | + targetPath := filepath.Join(target, relPath) |
| 235 | + |
| 236 | + if info.IsDir() { |
| 237 | + return os.MkdirAll(targetPath, info.Mode()) |
| 238 | + } |
| 239 | + |
| 240 | + sourceFile, err := os.Open(path) |
| 241 | + if err != nil { |
| 242 | + return err |
| 243 | + } |
| 244 | + defer sourceFile.Close() |
| 245 | + |
| 246 | + targetFile, err := os.Create(targetPath) |
| 247 | + if err != nil { |
| 248 | + return err |
| 249 | + } |
| 250 | + defer targetFile.Close() |
| 251 | + |
| 252 | + _, err = io.Copy(targetFile, sourceFile) |
| 253 | + return err |
| 254 | + }) |
| 255 | +} |
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