add FSEvents-based watcher on macOS #10098
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Thanks for this. I will add some comment, but please don't spend time on adjusting your PR until we decide what to do. I have not tested this myself, but I'm assuming that FSEvents is significantly better, and I'm always a fan of that. Somme comments:
I will look closer at this later. |
ok. I will do so. |
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@arp242 You may want to be aware of this work going on in Hugo. |
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On macOS, `fsnotify` uses `kqueue` internally. This causes some long-lasting issues (gohugoio#8594, gohugoio#6109) though we have the workaround for them. This PR tries to resolve these issues by using `FSEvents` instead of `kqueue`. ref https://discourse.gohugo.io/t/fsevents-for-watching-on-macos/39053/4 Use FSEventsWatcher as default on darwin * eventwatcher_darwin.go * NewEventWather returns fsEventWatehr * eventwatcher_other.go * NewEventWather returns fsNotifyWatcher
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On macOS,
fsnotifyuseskqueueinternally.This causes some long-lasting issues (#8594, #6109) though we have the workaround for them.
This PR tries to resolve these issues by using
FSEventsinstead ofkqueue.After applying it, we can use
--enableFSEventsflag like soThere are some considerations.
fsnotify/fseventsmight not be stable yetRelated tests look passed but we have to wait for a while just before adding targets to watch.Otherwise, delayed past events are sent.ref: https://discourse.gohugo.io/t/fsevents-for-watching-on-macos/39053/4