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rebase: bump the golang-dependencies group with 1 update
Bumps the golang-dependencies group with 1 update: [golang.org/x/crypto](https://github.com/golang/crypto). Updates `golang.org/x/crypto` from 0.16.0 to 0.17.0 - [Commits](https://github.com/golang/crypto/compare/v0.16.0...v0.17.0) --- updated-dependencies: - dependency-name: golang.org/x/crypto dependency-type: direct:production update-type: version-update:semver-minor dependency-group: golang-dependencies ... Signed-off-by: dependabot[bot] <support@github.com>
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mergify[bot]
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commit
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89
vendor/k8s.io/kubernetes/pkg/util/filesystem/watcher.go
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vendored
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89
vendor/k8s.io/kubernetes/pkg/util/filesystem/watcher.go
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/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package filesystem
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import (
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"github.com/fsnotify/fsnotify"
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)
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// FSWatcher is a callback-based filesystem watcher abstraction for fsnotify.
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type FSWatcher interface {
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// Initializes the watcher with the given watch handlers.
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// Called before all other methods.
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Init(FSEventHandler, FSErrorHandler) error
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// Starts listening for events and errors.
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// When an event or error occurs, the corresponding handler is called.
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Run()
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// Add a filesystem path to watch
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AddWatch(path string) error
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}
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// FSEventHandler is called when a fsnotify event occurs.
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type FSEventHandler func(event fsnotify.Event)
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// FSErrorHandler is called when a fsnotify error occurs.
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type FSErrorHandler func(err error)
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type fsnotifyWatcher struct {
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watcher *fsnotify.Watcher
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eventHandler FSEventHandler
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errorHandler FSErrorHandler
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}
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var _ FSWatcher = &fsnotifyWatcher{}
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// NewFsnotifyWatcher returns an implementation of FSWatcher that continuously listens for
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// fsnotify events and calls the event handler as soon as an event is received.
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func NewFsnotifyWatcher() FSWatcher {
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return &fsnotifyWatcher{}
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}
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func (w *fsnotifyWatcher) AddWatch(path string) error {
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return w.watcher.Add(path)
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}
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func (w *fsnotifyWatcher) Init(eventHandler FSEventHandler, errorHandler FSErrorHandler) error {
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var err error
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w.watcher, err = fsnotify.NewWatcher()
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if err != nil {
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return err
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}
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w.eventHandler = eventHandler
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w.errorHandler = errorHandler
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return nil
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}
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func (w *fsnotifyWatcher) Run() {
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go func() {
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defer w.watcher.Close()
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for {
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select {
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case event := <-w.watcher.Events:
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if w.eventHandler != nil {
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w.eventHandler(event)
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}
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case err := <-w.watcher.Errors:
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if w.errorHandler != nil {
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w.errorHandler(err)
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}
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}
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}
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}()
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}
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