You can have Perforce alert you about changes to sections of the depot.
To do this using the Perforce GUI.
- Go to User -> Edit <your name>…
- Add the branches in the Reviews section that you want to monitor. For example:
//depot/main/.../pom.xml //depot/main/com/betweengo/foo/... //depot/proj/.../bar/...
Thanks to fellow developer Bill Crook for the tip.
Update: Michael Delaney, Perforce guru, pointed out that this works only if a P4Review daemon is running which it is not by default.