| # Copyright (C) 2017 The Android Open Source Project | 
 | # | 
 | # Licensed under the Apache License, Version 2.0 (the "License"); | 
 | # you may not use this file except in compliance with the License. | 
 | # You may obtain a copy of the License at | 
 | # | 
 | #      http://www.apache.org/licenses/LICENSE-2.0 | 
 | # | 
 | # Unless required by applicable law or agreed to in writing, software | 
 | # distributed under the License is distributed on an "AS IS" BASIS, | 
 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 | # See the License for the specific language governing permissions and | 
 | # limitations under the License. | 
 |  | 
 | set -e | 
 |  | 
 | if [[ -n "$BASH_VERSION" && "${BASH_SOURCE:-$0}" == "$0" ]]; then | 
 |   echo "ERROR: ${BASH_SOURCE:-$0} must be sourced" | 
 |   exit 1 | 
 | fi | 
 |  | 
 | readonly PROJECT_ROOT="$(cd -P ${BASH_SOURCE[0]%/*}/..; pwd)" | 
 |  | 
 | case "$(uname -s | tr '[A-Z]' '[a-z]')" in | 
 |   darwin) | 
 |     readonly OS="mac";; | 
 |   linux) | 
 |     readonly OS="linux64";; | 
 |   *) | 
 |     echo "Unsupported platform" | 
 |     exit 1 | 
 |     ;; | 
 | esac | 
 |  | 
 | BIN_PATH="$PROJECT_ROOT/buildtools/$OS/$CMD" | 
 | if [ ! -x "$BIN_PATH" ]; then | 
 |   echo "Cannot find $BIN_PATH. Run tools/install-build-deps first." | 
 |   exit 1 | 
 | fi | 
 |  | 
 | exec "$BIN_PATH" "$@" |