configure.sh

#!/bin/bash
# Copyright 2018 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.
# ==============================================================================
# Later changes made by Martin Zinkevich.
#
# This script prepares the bazel workspace for build, by configuring the
# .bazelrc file.
#
# Usage: configure.sh [--python_bin_path PYTHON_BIN_PATH]

function write_to_bazelrc() {
  echo "$1" >> .bazelrc
}

function write_action_env_to_bazelrc() {
  write_to_bazelrc "build --action_env $1=\"$2\""
}

function has_tensorflow() {
  ${PYTHON_BIN_PATH} -c "import tensorflow" > /dev/null
}

function ensure_tensorflow() {
  if has_tensorflow; then
    echo "Using installed tf..."
  else
    echo "Building struct2tensor requires tensorflow. Please install tensorflow."
    exit 1
  fi
}

if [[ -z "$1" ]]; then
  PYTHON_BIN_PATH=python
else
  if [[ "$1" == --python_bin_path ]]; then
    shift
    PYTHON_BIN_PATH=$1
  else
    printf "Unrecognized argument $1"
    exit 1
  fi
fi

ensure_tensorflow
TF_CFLAGS=( $(${PYTHON_BIN_PATH} -c 'import tensorflow as tf; print(" ".join(tf.sysconfig.get_compile_flags()))') )
TF_LFLAGS="$(${PYTHON_BIN_PATH} -c 'import tensorflow as tf; print(" ".join(tf.sysconfig.get_link_flags()))')"

write_action_env_to_bazelrc "TF_HEADER_DIR" ${TF_CFLAGS:2}
SHARED_LIBRARY_DIR=${TF_LFLAGS:2}
SHARED_LIBRARY_NAME=$(echo $TF_LFLAGS | rev | cut -d":" -f1 | rev)
if ! [[ $TF_LFLAGS =~ .*:.* ]]; then
  if [[ "$(uname)" == "Darwin" ]]; then
    SHARED_LIBRARY_NAME="libtensorflow_framework.dylib"
  else
    SHARED_LIBRARY_NAME="libtensorflow_framework.so"
  fi
fi
write_action_env_to_bazelrc "TF_SHARED_LIBRARY_DIR" ${SHARED_LIBRARY_DIR}
write_action_env_to_bazelrc "TF_SHARED_LIBRARY_NAME" ${SHARED_LIBRARY_NAME}