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subscribe.go
45 lines (41 loc) · 982 Bytes
/
subscribe.go
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package watch
import (
"time"
"github.com/fsnotify/fsnotify"
)
func (ctl *Watchctl) subscribe() {
for {
event, ok := <-ctl.watcher.Events
if !ok {
return
}
if event.Has(fsnotify.Write) {
ctl.repos.Log.Info("modified: %s", event.Name)
ctl.triggerCallbacks()
} else if event.Has(fsnotify.Remove) {
ctl.repos.Log.Info("deleted: %s", event.Name)
ctl.triggerCallbacks()
} else if event.Has(fsnotify.Create) {
ctl.repos.Log.Info("created: %s", event.Name)
ctl.triggerCallbacks()
} else if event.Has(fsnotify.Rename) {
// this seems deleted file.
ctl.repos.Log.Info("deleted: %s", event.Name)
ctl.triggerCallbacks()
}
}
}
func (ctl *Watchctl) triggerCallbacks() {
// do not run on same time. As far as possible, this should be `Exactly Once With No Guarantee`.
if ctl.running {
return
}
ctl.running = true
for _, fnc := range ctl.callbacks {
fnc()
}
go func () {
time.Sleep(10 * time.Second)
ctl.running = false
}()
}