Reading log files as they're updated in Go

Question

I\'m trying to parse some log files as they\'re being written in Go but I\'m not sure how I would accomplish this without rereading the file again and again while checking f

Answer 1

There are many ways to do this. In modern POSIX based Operating Systems, one can use the inotify interface to do this.

One can use this package: https://github.com/fsnotify/fsnotify

Sample code:

watcher, err := fsnotify.NewWatcher()
if err != nil {
    log.Fatal(err)
}

done := make(chan bool)

err = watcher.Add(fileName)
if err != nil {
    log.Fatal(err)
}
for {
    select {
    case event := <-watcher.Events:
        if event.Op&fsnotify.Write == fsnotify.Write {
            log.Println("modified file:", event.Name)

        }
}

Hope this helps!