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
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/