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


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 is not implemented or the hook program returns a non-zero exit value, no change to the property will be made, and anything printed to stderr is marshalled 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 propchange

  4. change description: A (added), D (deleted), or M (modified)

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

Common Uses

access control, change validation and control