#!/bin/bash
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#
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# modification, are permitted provided that the following conditions are
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#
#     * Redistributions of source code must retain the above copyright
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# this software without specific prior written permission.
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

set -ex

# change to grpc repo root
cd $(dirname $0)/../..

ROOT=`pwd`
GRPCIO=$ROOT/src/python/grpcio

# Builds the testing environment.
make_virtualenv() {
  virtualenv_name="python"$1"_virtual_environment"
  if [ ! -d $virtualenv_name ]
  then
    # Build the entire virtual environment
    virtualenv -p `which "python"$1` $virtualenv_name
    source $virtualenv_name/bin/activate

    cd $GRPCIO
    pip install -r requirements.txt
  else
    source $virtualenv_name/bin/activate

    cd $GRPCIO
    pip install -U -r requirements.txt
  fi

  export LD_LIBRARY_PATH=$ROOT/libs/$CONFIG
  export DYLD_LIBRARY_PATH=$ROOT/libs/$CONFIG
  export PATH=$ROOT/bins/$CONFIG:$ROOT/bins/$CONFIG/protobuf:$PATH
  export CFLAGS="-I$ROOT/include -std=c89"
  export LDFLAGS="-L$ROOT/libs/$CONFIG"
  export GRPC_PYTHON_BUILD_WITH_CYTHON=1
  export GRPC_PYTHON_ENABLE_CYTHON_TRACING=1
  python $GRPCIO/setup.py gather --test --install
  python $GRPCIO/setup.py build_ext --inplace
  python $GRPCIO/setup.py build_py
}

make_virtualenv $1