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https://github.com/illarion/gonotify

Inotify wrapper
https://github.com/illarion/gonotify

events file-system inotify inotify-wrapper linux

Last synced: 7 days ago
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Inotify wrapper

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## Gonotify

Simple Golang inotify wrapper.

[![GoDoc](https://godoc.org/github.com/illarion/gonotify/v3?status.svg)](https://godoc.org/github.com/illarion/gonotify/v3)

### 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), `Wd` - watch descriptor 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/v3"
"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)
}

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

if event.Is(gonotify.IN_CREATE) {
fmt.Printf("File created: %s\n", event.Name)
}

if event.IsAny(gonotify.IN_CLOSE, gonotify.IN_CLOSE_WRITE) {
fmt.Printf("File closed: %s\n", event.Name)
}

case <-time.After(5 * time.Second):
fmt.Println("Good bye!")
cancel()
break main
}
}

// Wait for watcher to finish all internal goroutines
<-watcher.Done()
fmt.Println("Watcher is done")

}
```

## License
MIT. See [LICENSE](LICENSE) file for more details.