Version Control with Subversion, 2nd Edition

Name

pre-revprop-change — Notification of a revision property change attempt.

Description

The pre-revprop-change hook is run immediately prior to the modification of a revision property when performed outside the scope of a normal commit. Unlike the other hooks, the default state of this one is to deny the proposed action. The hook must actually exist and return a zero exit value before a revision property modification can happen.

If the pre-revprop-change hook doesn’t exist, isn’t executable, or returns a nonzero exit value, no change to the property will be made, and anything printed to stderr is marshaled back to the client.

Input parameter(s)

The command-line arguments passed to the hook program, in order, are:

1. Repository path

2. Revision whose property is about to be modified

3. Authenticated username attempting the property change

4. Name of the property changed

5. Change description: A (added), D (deleted), or M (modified)

Additionally, Subversion passes the intended new value of the property to the hook program via standard input.

Common uses

Access control; change validation and control.