#!/bin/sh
#
# post-receive-hook — a post-receive hook to invoke fbi-announce
#
# Copyright © 2009–2010 martin f. krafft <madduck@debian.org>
#
# Distributed under the terms of the Artistic Licence 2.0
#
#
# Link this to $GIT_DIR/hooks/post-receive (or …/update).
#
set -eu

realself=$(readlink -f ${0})
siblingscript="${realself%/*}/fbi-announce.sh"

process_update()
{
  for commit in $(git rev-parse --not --branches |
                    grep -v $(git rev-parse ${3}) |
                    git rev-list --reverse --stdin ${1}..${2}); do
    ${siblingscript} ${3} ${commit}
  done
}

if [ $# -eq 3 ]; then
  process_update "${@}"
else
  while read oldrev newrev refname; do
    process_update "${oldrev}" "${newrev}" "${refname}"
  done
fi