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#!/bin/bash -e
# Copyright 2016 The TensorFlow Authors. All Rights Reserved.
#
# 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.
# ==============================================================================
# Utility functions for scripts to build tensorflow by Makefile

get_cpu_count() {
  case "${OSTYPE}" in
    linux*)
      grep processor /proc/cpuinfo | wc -l ;;
    darwin*)
      sysctl hw.ncpu | awk '{print $2}' ;;
    cygwin*)
      grep processor /proc/cpuinfo | wc -l ;;
    *)
      echo "1"
      exit 1 ;;
  esac
  exit 0
}

get_job_count() {
  echo $(($(get_cpu_count)))
}

make_host_protoc() {
  if [[ ! $1 ]]; then
    echo "needs 1 argument (HOST_GENDIR)"
    exit 1
  fi
  HOST_GENDIR="$1"
  ./autogen.sh
  if [ $? -ne 0 ]
  then
    echo "./autogen.sh command failed."
    exit 1
  fi
  rm -rf "${HOST_GENDIR}"
  mkdir -p "${HOST_GENDIR}"
  ./configure --disable-shared --prefix="${HOST_GENDIR}"
  make clean
  make -j"$(get_job_count)"
  if [ $? -ne 0 ]; then
    echo "make failed"
    exit 1
  fi
  make install
}

download_and_push() {
  URL="$1"
  LOCAL_DEST="$2"
  ANDROID_DEST="$3"
  SKIP_DOWNLOAD_IF_EXIST="$4"
  if [[ "${SKIP_DOWNLOAD_IF_EXIST}" == "true" ]]; then
    ANDROID_DEST_FILE_PATH="${ANDROID_DEST}/$(basename "${LOCAL_DEST}")"
    if adb shell test -f "${ANDROID_DEST_FILE_PATH}"; then
        echo "${ANDROID_DEST_FILE_PATH} already existins, skip download" 1>&2
      return 0
    fi
  fi

  curl -Ls "${URL}" -o "${LOCAL_DEST}"

  if [[ ! -z "${ANDROID_DEST}" ]]; then
    adb shell mkdir -p "${ANDROID_DEST}"
    adb push "${LOCAL_DEST}" "${ANDROID_DEST}"
  fi
}