Watchman exists to watch files and record when they change. It can also trigger
actions (such as rebuilding assets) when matching files change.
- Watchman can recursively watch one or more directory trees (we call them
- Watchman does not follow symlinks. It knows they exist, but they show up the
same as any other file in its reporting.
- Watchman waits for a root to settle down before it will start to trigger
notifications or command execution.
- Watchman is conservative, preferring to err on the side of caution; it
considers files to be freshly changed when you start to watch them or when it
- You can query a root for file changes since you last checked, or the current
state of the tree
- You can subscribe to file changes that occur in a root
Apache-2.0 AND MIT