#!/bin/bash
# This script is meant to be called by the "install" step defined in
# .travis.yml. See http://docs.travis-ci.com/ for more details.
# The behavior of the script is controlled by environment variabled defined
# in the .travis.yml in the top level folder of the project.

 set -e

 echo 'List files from cached directories'
if [ -d $HOME/download ]; then
    echo 'download:'
    ls $HOME/download
fi
if [ -d $HOME/.cache/pip ]; then
    echo 'pip:'
    ls $HOME/.cache/pip
fi

 # Deactivate the travis-provided virtual environment and setup a
# conda-based environment instead
deactivate

 # Add the miniconda bin directory to $PATH
export PATH=/home/travis/miniconda3/bin:$PATH
echo $PATH

 # Use the miniconda installer for setup of conda itself
pushd .
cd
mkdir -p download
cd download
if [[ ! -f /home/travis/miniconda3/bin/activate ]]
then
    if [[ ! -f miniconda.sh ]]
    then
        wget http://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh \
             -O miniconda.sh
    fi
    chmod +x miniconda.sh && ./miniconda.sh -b -f
    conda update --yes conda
    echo "Creating environment to run tests in."
    conda create -n testenv --yes python="$PYTHON_VERSION"
fi
cd ..
popd

 # Activate the python environment we created.
source activate testenv

 # Install requirements via pip in our conda environment
pip install -r requirements.txt

 # Install the following only if running tests
if [[ "$SKIP_TESTS" != "true" ]]; then
    # PyTorch (nightly as 1.1 does not have Optional for type annotations)
    conda install --yes pytorch-nightly-cpu -c pytorch

     # TorchAudio CPP Extensions
    pip install .
fi
