DRMDTool/src/watcher.go

115 lines
2.2 KiB
Go

package main
import (
"fmt"
"io"
"log"
"os"
"path/filepath"
"strings"
"time"
"github.com/fsnotify/fsnotify"
)
func watchFolder() {
watcher, err := fsnotify.NewWatcher()
if err != nil {
log.Fatal(err)
}
defer watcher.Close()
done := make(chan bool)
go func() {
for {
select {
case event, ok := <-watcher.Events:
if !ok {
return
}
if event.Op&fsnotify.Create == fsnotify.Create {
if strings.HasSuffix(event.Name, ".drmd") {
fmt.Println("New .drmd detected:", event.Name)
processWatchedFile(event.Name)
}
}
case err, ok := <-watcher.Errors:
if !ok {
return
}
log.Println("Error:", err)
}
}
}()
err = watcher.Add(config.WatchedFolder)
if err != nil {
log.Fatal(err)
}
<-done
}
func processWatchedFile(filePath string) {
for {
initialSize, err := getFileSize(filePath)
if err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error getting file size: %v", err))
return
}
time.Sleep(1 * time.Second)
currentSize, err := getFileSize(filePath)
if err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error getting file size: %v", err))
return
}
if initialSize == currentSize {
break
}
}
file, err := os.Open(filePath)
if err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error opening file: %v", err))
return
}
defer file.Close()
originalFilename := filepath.Base(filePath)
tempFile, err := os.CreateTemp(uploadDir, originalFilename)
if err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error creating temporary file: %v", err))
return
}
defer tempFile.Close()
_, err = io.Copy(tempFile, file)
if err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error copying file: %v", err))
return
}
if err := os.Remove(filePath); err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error deleting original file: %v", err))
}
items, err := parseInputFile(tempFile.Name())
if err != nil {
logger.LogError("Watcher", fmt.Sprintf("Error parsing input file: %v", err))
return
}
go processItems(filepath.Base(tempFile.Name()), items)
}
func getFileSize(filePath string) (int64, error) {
fileInfo, err := os.Stat(filePath)
if err != nil {
return 0, err
}
return fileInfo.Size(), nil
}