|  | #!/bin/bash | 
|  | # Copyright (c) 2010 The Chromium Authors. All rights reserved. | 
|  | # Use of this source code is governed by a BSD-style license that can be | 
|  | # found in the LICENSE file. | 
|  |  | 
|  | script=$(readlink $0) | 
|  | source $(dirname ${script:-$0})/git-utils.sh | 
|  |  | 
|  | old_ref=$1  # Previous HEAD. | 
|  | new_ref=$2  # Current HEAD. | 
|  | branch_switch=$3  # Whether we switched branches. | 
|  |  | 
|  | if [ $old_ref == $new_ref ]; then | 
|  | if ! git diff-index --quiet HEAD $(git rev-parse --show-cdup)DEPS; then | 
|  | warn "DEPS has local modifications; do you need to re-run gclient sync?" | 
|  | fi | 
|  | else | 
|  | if git diff-tree $old_ref $new_ref | grep -qs $'\tDEPS$'; then | 
|  | warn "DEPS has changed; you probably need to re-run gclient sync." | 
|  | fi | 
|  | fi | 
|  |  |