## Gonotify 

Simple Golang inotify wrapper.

[![GoDoc](https://godoc.org/github.com/illarion/gonotify/v2?status.svg)](https://godoc.org/github.com/illarion/gonotify/v2)

### Provides following primitives:

* Low level
  * `Inotify` - wrapper around [inotify(7)](http://man7.org/linux/man-pages/man7/inotify.7.html)
  * `InotifyEvent` - generated file/folder event. Contains `Name` (full path), watch descriptior and `Mask` that describes the event.

* Higher level
  * `FileWatcher` - higher level utility, helps to watch the list of files for changes, creation or removal
  * `DirWatcher` - higher level utility, recursively watches given root folder for added, removed or changed files.
  * `FileEvent` - embeds `InotifyEvent` and keeps additional field `Eof` to notify user that there will be no more events.

Use `FileWatcher` and `DirWatcher` as an example and build your own utility classes.


### Usage

```go
package main

import (
	"fmt"
	"github.com/illarion/gonotify/v2"
	"time"
	"context"
)

func main() {

	ctx, cancel := context.WithCancel(context.Background())

	watcher, err := gonotify.NewDirWatcher(ctx, gonotify.IN_CREATE|gonotify.IN_CLOSE, "/tmp")
	if err != nil {
		panic(err)
	}

	for {
		select {
		case event := <-watcher.C:
			fmt.Printf("Event: %s\n", event)

			if event.Mask&gonotify.IN_CREATE != 0 {
				fmt.Printf("File created: %s\n", event.Name)
			}

			if event.Mask&gonotify.IN_CLOSE != 0 {
				fmt.Printf("File closed: %s\n", event.Name)
			}

		case <-time.After(5 * time.Second):
			fmt.Println("Timeout")
			cancel()
			return
		}
	}
}

```

## License
MIT. See LICENSE file for more details.