pyenv

#!/usr/bin/env bash
set -e

program="${0##*/}"
localbin="$HOME/.local/bin"
export PYENV_ROOT="$HOME/.pyenv"

if [[ "$1" = "change" ]]; then
    /usr/local/Cellar/pyenv/1.2.4/libexec/pyenv global $2;
    if [[ "$?" -ne "0" ]]; then
        echo "Assigned version not install yet in Pyenv.";
        exit;
    fi

    cwd=$(pwd)
    directory="$HOME/.pipenv/$2";

    if [[ ! -d $directory ]]; then
        cd $HOME/.pipenv; mkdir $2 && cd $2;
        pipenv --python $2;
    fi

    cd $HOME/.pipenv/$2;

    for file in "python" "pip"; do
        rm $localbin/$file;
        ln -s $(pwd)/.venv/bin/$file $localbin/$file;
    done

    echo "Python Environment checkout to $2 ($directory)";

    cd $cwd;
else
    # If parameter is not change, execute it
    exec "/usr/local/Cellar/pyenv/1.2.4/libexec/pyenv" "$@";
fi