webdav/sync/go/pkg/mod/github.com/fsnotify/fsnotify@v1.4.9 - 志元云盘

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CONTRIBUTING.md	2024-09-19 10:33:56	3.88 KB
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inotify_poller_test.go	2024-09-19 10:33:56	4.06 KB
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integration_darwin_test.go	2024-09-19 10:33:56	4.32 KB
integration_test.go	2024-09-19 10:33:56	32.04 KB
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README.md	2024-09-19 10:33:56	5.89 KB
windows.go	2024-09-19 10:33:56	13.44 KB

# File system notifications for Go

[![GoDoc](https://godoc.org/github.com/fsnotify/fsnotify?status.svg)](https://godoc.org/github.com/fsnotify/fsnotify) [![Go Report Card](https://goreportcard.com/badge/github.com/fsnotify/fsnotify)](https://goreportcard.com/report/github.com/fsnotify/fsnotify)

fsnotify utilizes [golang.org/x/sys](https://godoc.org/golang.org/x/sys) rather than `syscall` from the standard library. Ensure you have the latest version installed by running:

```console
go get -u golang.org/x/sys/...
```

Cross platform: Windows, Linux, BSD and macOS.

| Adapter               | OS                               | Status                                                                                                                          |
| --------------------- | -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------- |
| inotify               | Linux 2.6.27 or later, Android\* | Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify) |
| kqueue                | BSD, macOS, iOS\*                | Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify) |
| ReadDirectoryChangesW | Windows                          | Supported [![Build Status](https://travis-ci.org/fsnotify/fsnotify.svg?branch=master)](https://travis-ci.org/fsnotify/fsnotify) |
| FSEvents              | macOS                            | [Planned](https://github.com/fsnotify/fsnotify/issues/11)                                                                       |
| FEN                   | Solaris 11                       | [In Progress](https://github.com/fsnotify/fsnotify/issues/12)                                                                   |
| fanotify              | Linux 2.6.37+                    | [Planned](https://github.com/fsnotify/fsnotify/issues/114)                                                                      |
| USN Journals          | Windows                          | [Maybe](https://github.com/fsnotify/fsnotify/issues/53)                                                                         |
| Polling               | *All*                            | [Maybe](https://github.com/fsnotify/fsnotify/issues/9)                                                                          |

\* Android and iOS are untested.

Please see [the documentation](https://godoc.org/github.com/fsnotify/fsnotify) and consult the [FAQ](#faq) for usage information.

## API stability

fsnotify is a fork of [howeyc/fsnotify](https://godoc.org/github.com/howeyc/fsnotify) with a new API as of v1.0. The API is based on [this design document](http://goo.gl/MrYxyA).

All [releases](https://github.com/fsnotify/fsnotify/releases) are tagged based on [Semantic Versioning](http://semver.org/). Further API changes are [planned](https://github.com/fsnotify/fsnotify/milestones), and will be tagged with a new major revision number.

Go 1.6 supports dependencies located in the `vendor/` folder. Unless you are creating a library, it is recommended that you copy fsnotify into `vendor/github.com/fsnotify/fsnotify` within your project, and likewise for `golang.org/x/sys`.

## Usage

```go
package main

import (
	"log"

"github.com/fsnotify/fsnotify"
)

func main() {
	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
				}
				log.Println("event:", event)
				if event.Op&fsnotify.Write == fsnotify.Write {
					log.Println("modified file:", event.Name)
				}
			case err, ok := <-watcher.Errors:
				if !ok {
					return
				}
				log.Println("error:", err)
			}
		}
	}()

err = watcher.Add("/tmp/foo")
	if err != nil {
		log.Fatal(err)
	}
	<-done
}
```

## Contributing

Please refer to [CONTRIBUTING][] before opening an issue or pull request.

## Example

See [example_test.go](https://github.com/fsnotify/fsnotify/blob/master/example_test.go).

## FAQ

**When a file is moved to another directory is it still being watched?**

No (it shouldn't be, unless you are watching where it was moved to).

**When I watch a directory, are all subdirectories watched as well?**

No, you must add watches for any directory you want to watch (a recursive watcher is on the roadmap [#18][]).

**Do I have to watch the Error and Event channels in a separate goroutine?**

As of now, yes. Looking into making this single-thread friendly (see [howeyc #7][#7])

**Why am I receiving multiple events for the same file on OS X?**

Spotlight indexing on OS X can result in multiple events (see [howeyc #62][#62]). A temporary workaround is to add your folder(s) to the *Spotlight Privacy settings* until we have a native FSEvents implementation (see [#11][]).

**How many files can be watched at once?**

There are OS-specific limits as to how many watches can be created:
* Linux: /proc/sys/fs/inotify/max_user_watches contains the limit, reaching this limit results in a "no space left on device" error.
* BSD / OSX: sysctl variables "kern.maxfiles" and "kern.maxfilesperproc", reaching these limits results in a "too many open files" error.

**Why don't notifications work with NFS filesystems or filesystem in userspace (FUSE)?**

fsnotify requires support from underlying OS to work. The current NFS protocol does not provide network level support for file notifications.

[#62]: https://github.com/howeyc/fsnotify/issues/62
[#18]: https://github.com/fsnotify/fsnotify/issues/18
[#11]: https://github.com/fsnotify/fsnotify/issues/11
[#7]: https://github.com/howeyc/fsnotify/issues/7

[contributing]: https://github.com/fsnotify/fsnotify/blob/master/CONTRIBUTING.md

## Related Projects

* [notify](https://github.com/rjeczalik/notify)
* [fsevents](https://github.com/fsnotify/fsevents)

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