mirror of
https://github.com/gohugoio/hugo.git
synced 2024-07-02 14:46:16 +00:00
81c13171a9
As pointed out by the linter, some exported functions and types are missing doc comments. The linter warnings have been reduced from 194 to 116. Not all missing comments have been added in this commit though.
74 lines
1.7 KiB
Go
74 lines
1.7 KiB
Go
// Copyright 2015 The Hugo Authors. All rights reserved.
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//
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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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//
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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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package watcher
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import (
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"time"
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"github.com/fsnotify/fsnotify"
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)
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// Batcher batches file watch events in a given interval.
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type Batcher struct {
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*fsnotify.Watcher
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interval time.Duration
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done chan struct{}
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Events chan []fsnotify.Event // Events are returned on this channel
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}
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// New creates and starts a Batcher with the given time interval.
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func New(interval time.Duration) (*Batcher, error) {
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watcher, err := fsnotify.NewWatcher()
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batcher := &Batcher{}
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batcher.Watcher = watcher
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batcher.interval = interval
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batcher.done = make(chan struct{}, 1)
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batcher.Events = make(chan []fsnotify.Event, 1)
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if err == nil {
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go batcher.run()
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}
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return batcher, err
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}
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func (b *Batcher) run() {
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tick := time.Tick(b.interval)
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evs := make([]fsnotify.Event, 0)
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OuterLoop:
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for {
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select {
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case ev := <-b.Watcher.Events:
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evs = append(evs, ev)
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case <-tick:
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if len(evs) == 0 {
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continue
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}
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b.Events <- evs
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evs = make([]fsnotify.Event, 0)
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case <-b.done:
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break OuterLoop
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}
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}
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close(b.done)
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}
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// Close stops the watching of the files.
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func (b *Batcher) Close() {
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b.done <- struct{}{}
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b.Watcher.Close()
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}
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