47 lines
956 B
Go
47 lines
956 B
Go
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package main
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import (
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"github.com/howeyc/fsnotify"
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)
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func StartWatching(watchDir string, fileUpdates chan *Event) {
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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panic("Failed to create fsnotify watcher")
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}
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err = watcher.Watch(watchDir)
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if err != nil {
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panic("Failed to watch " + watchDir)
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}
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for {
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select {
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case ev := <-watcher.Event:
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event := new(Event)
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if ev.IsCreate() || ev.IsModify() {
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event.Type = UPDATE
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} else if ev.IsDelete() || ev.IsRename() {
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event.Type = DELETE
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} else {
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panic("Unknown fsnotify event type")
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}
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event.Path = ev.Name
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if event.IsUpdate() {
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event.Hash, err = HashFile(ev.Name)
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if err != nil { continue }
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} else {
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event.Hash = ""
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}
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fileUpdates <- event
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//TODO if creating a directory, start watching it (and then initiate a full scan of it so we're sure nothing slipped through the cracks)
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case err := <-watcher.Error:
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panic(err)
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}
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}
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}
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