chromium/native_client_sdk/src/gonacl_appengine/src/bullet/build.sh

#!/bin/bash
# Copyright 2013 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

set -o nounset
set -o errexit

SCRIPT_DIR="$(cd $(dirname $0) && pwd)"
cd ${SCRIPT_DIR}

OUT_DIR=out
NACLPORTS_URL=https://chromium.googlesource.com/external/naclports.git
NACLPORTS_SHA=e53078c33d99b0b3cbadbbbbb92cccf7a48d5dc1
NACLPORTS_DIR=${OUT_DIR}/naclports
NACLAM_URL=https://github.com/johnmccutchan/NaClAMBase
NACLAM_DIR=${OUT_DIR}/NaClAMBase
NACLAM_SHA=0eb4647a3f99c6e66156959edc6c55d4a913468a

if [ -z "${NACL_SDK_ROOT:-}" ]; then
  echo "-------------------------------------------------------------------"
  echo "NACL_SDK_ROOT is unset."
  echo "This environment variable needs to be pointed at some version of"
  echo "the Native Client SDK (the directory containing toolchain/)."
  echo "NOTE: set this to an absolute path."
  echo "-------------------------------------------------------------------"
  exit -1
fi

Banner() {
  echo "######################################################################"
  echo $*
  echo "######################################################################"
}

# echo a command to stdout and then execute it.
LogExecute() {
  echo $*
  $*
}

Clone() {
  local url=$1
  local dir=$2
  local sha=$3
  if [ ! -d $dir ]; then
    LogExecute git clone $url $dir
  else
    pushd $dir
    LogExecute git fetch origin
    popd
  fi

  pushd $dir
  LogExecute git checkout $sha
  popd
}

readonly OS_NAME=$(uname -s)
if [ $OS_NAME = "Darwin" ]; then
  OS_JOBS=4
elif [ $OS_NAME = "Linux" ]; then
  OS_JOBS=`nproc`
else
  OS_JOBS=1
fi

Banner Cloning naclports
Clone ${NACLPORTS_URL} ${NACLPORTS_DIR} ${NACLPORTS_SHA}

Banner Building bullet
pushd ${NACLPORTS_DIR}
make NACL_ARCH=pnacl bullet
popd

Banner Cloning NaClAMBase
Clone ${NACLAM_URL} ${NACLAM_DIR} ${NACLAM_SHA}

Banner Building NaClAM
LogExecute cp Makefile ${NACLAM_DIR}
pushd ${NACLAM_DIR}
LogExecute make -j${OS_JOBS}
popd

LogExecute cp ${NACLAM_DIR}/pnacl/Release/NaClAMBullet.{pexe,nmf} ${OUT_DIR}

Banner Done!