jitl

Not to be confused with Facebook’s file watch daemon, also names watchman, which does the same sort of thing but is more complicated. There’s a bunch of tools that integrate Facebook’s watchman for more efficient change tracking.

Advantages of Facebook’s watchman:

1. Implements efficient file system event watches on macOS and Windows

2. IPC/daemon system reduces resource use because overlapping watches/triggers don’t use more inotify slots.

3. Denounces / waits for changes to settle

4. Client libraries in a few different languages for scripting purposes

https://facebook.github.io/watchman/

dec0dedab0de
Also not to be confused with watchdog and it's command watchmedo, which is what I thought this was when I first read the headline. I don't know what the differences are, but I use watchdog to restart my local celery workers when I make changes. It's scripted out so I don't ever use the command directly.

https://pypi.org/project/watchdog/

https://github.com/gorakhargosh/watchdog

EDIT: Now I'm wondering how often I miss out on something because I confuse it for something I already use. Maybe there is room for a "things I use" or "things I know about" browser plugin.