text: #!/bin/sh
  
  # POST-REVPROP-CHANGE HOOK
  #
  # The post-revprop-change hook is invoked after a revision property
  # has been added, modified or deleted.  Subversion runs this hook by
  # invoking a program (script, executable, binary, etc.) named
  # 'post-revprop-change' (for which this file is a template), with the
  # following ordered arguments:
  #
  #   [1] REPOS-PATH   (the path to this repository)
  #   [2] REV          (the revision that was tweaked)
  #   [3] USER         (the username of the person tweaking the property)
  #   [4] PROPNAME     (the property that was changed)
  #   [5] ACTION       (the property was 'A'dded, 'M'odified, or 'D'eleted)
  #
  #   [STDIN] PROPVAL  ** the old property value is passed via STDIN.
  #
  # Because the propchange has already completed and cannot be undone,
  # the exit code of the hook program is ignored.  The hook program
  # can use the 'svnlook' utility to help it examine the
  # new property value.
  #
  # On a Unix system, the normal procedure is to have 'post-revprop-change'
  # invoke other programs to do the real work, though it may do the
  # work itself too.
  #
  # Note that 'post-revprop-change' must be executable by the user(s) who will
  # invoke it (typically the user httpd runs as), and that user must
  # have filesystem-level permission to access the repository.
  #
  # On a Windows system, you should name the hook program
  # 'post-revprop-change.bat' or 'post-revprop-change.exe',
  # but the basic idea is the same.
  # 
  # The hook program typically does not inherit the environment of
  # its parent process.  For example, a common problem is for the
  # PATH environment variable to not be set to its usual value, so
  # that subprograms fail to launch unless invoked via absolute path.
  # If you're having unexpected problems with a hook program, the
  # culprit may be unusual (or missing) environment variables.
  # 
  # Here is an example hook script, for a Unix /bin/sh interpreter.
  # For more examples and pre-written hooks, see those in
  # the Subversion repository at
  # http://svn.collab.net/repos/svn/trunk/tools/hook-scripts/ and
  # http://svn.collab.net/repos/svn/trunk/contrib/hook-scripts/
  
  
  REPOS="$1"
  REV="$2"
  USER="$3"
  PROPNAME="$4"
  ACTION="$5"
  
  mailer.py propchange2 "$REPOS" "$REV" "$USER" "$PROPNAME" "$ACTION" /path/to/mailer.conf
  