travis_install_conda.sh

#!/bin/bash
set -ev

# Derived from: https://github.com/moble/auto_version/blob/b9da1638e033b0f6266be56898f6ff4dfa9d8363/travis_install_conda.sh
# Similar to: https://docs.conda.io/projects/conda/en/latest/user-guide/tasks/use-conda-with-travis-ci.html

# Determine which python version we will install
case "${PYTHON_VERSION:-3}" in
    2*)
        Miniconda="Miniconda2"
        ;;
    3*)
        Miniconda="Miniconda3"
        ;;
    *)
        echo "Unrecognized python version: '${PYTHON_VERSION:-3}'"
        exit 1
        ;;
esac

# Determine which OS we should install
case "${CONDA_INSTALLER_OS:-linux}" in
    linux)
        CondaOS='Linux'
        ;;
    osx)
        CondaOS='MacOSX'
        ;;
    windows)
        CondaOS='Windows'
        ;;
    *)
        echo "Unrecognized OS in conda installer: '${CONDA_INSTALLER_OS:-linux}'"
        exit 1
        ;;
esac

# Download the appropriate miniconda installer
wget http://repo.continuum.io/miniconda/${Miniconda}-latest-${CondaOS}-x86_64.sh -O miniconda.sh;

# Run the installer
bash miniconda.sh -b -p $HOME/miniconda

# Update and activate a new conda environment
export PATH="$HOME/miniconda/bin:$PATH"
hash -r
conda info -a
conda config --set always_yes yes --set changeps1 no

# workaround for https://github.com/conda/conda/issues/9337
pip uninstall -y setuptools
conda install setuptools

conda update -q conda
conda create -q -n test-environment python="${PYTHON_VERSION:-3}" $*
source activate test-environment
pip install --upgrade pip