Installs OpenAI Gym on MacOS -

mac_gym_installer.sh

#!/bin/sh
# See video https://www.youtube.com/watch?v=7PO27i2lEOs

set -e


command_exists () {
    type "$1" &> /dev/null ;
}

safe_brew_install () {
    while [ $# -gt 0 ]
    do
        if brew ls --versions "$1" > /dev/null ; then 
           echo "[CHECK] $1 already installed."
        else
           echo "Installing $1..."
           brew install "$1"
        fi
    shift
    done
}

tput setaf 54
echo "                                    ▄▄▄▄▄▄"
echo "                                  ▄▓▀    ▓▓▓██▄▄"
echo "                               ▄▄▓▓  ▄▄▓▀▀     ▀▓▄"
echo "                             ▄▓▀ ▓▌ ▐▓  ▄▄█▀▓▓▄  ▓▌"
echo "                            ▐▓▌  ▓▌ ▐▓█▀▀▀▄▄  ▀▀▓▓▌"
echo "                             ▓▌  ▓▌ ▐▌    ▐▓▀█▄  ▀▓▄"
echo "                              ▓▓▄ ▀▀▀▓▄  ▄▄▓  ▓▌  ▓▌"
echo "                              ▓▌▀▀▓▄▄▄▄▓▀ ▐▓  ▓▌ ▄▓▀"
echo "                              ▀▓▄   ▀▀  ▄▄▓▀ ▐▓▓▓▀"
echo "                                ▀▓▄▄▄▄▓▀▀    ▓▓"
echo "                                      ▀▓▓▓▓▓▀▀"
echo "      ▄▄▄▓▓▄▄▄                                          ▄▄▄      ████████"
echo "    ▄▓▓▀▀  ▀▀▓▓▄                                       ▓▓▀▓▌        ▓▓▌"
echo "    ▓▓▌      ▐▓▓  ▓▓▄▓▓▓▓▓▄   ▄▓▓▀█▓▄   ▓▓▄▓▓▓▓▓▄     ▓▀  ▓▓▄       ▓▓▌"
echo "    ▓▓▌      ▐▓▓  ▓▓    ▀▓▓  ▓▓▌    ▓▓  ▓▓▌   ▐▓▓    ▐▓▌   ▓▓       ▓▓▌"
echo "    ▓▓▌      ▐▓▓  ▓▌    ▐▓▓  ▓▓▓██████  ▓▓▌   ▐▓▓   ▐▓▓▄▄▄▄▓▓▓      ▓▓▌"
echo "    ▀▓▓▄    ▄▓▓▀  ▓▓▄   ▄▓▓  ▓▓▌    ▄▄  ▓▓▌   ▐▓▓   ▓▓▀▀▀▀▀▀▓▓▌     ▓▓▌"
echo "      ▀▀█▓▓█▀▀    ▓▌▀████▀    ▀▀█▓██▀   ▓▓▌   ▐▓▓  ██▀       ██  ████████"
echo "                  ▓▌                                                     "
echo "                  ▓▌                                                     "
tput sgr0
echo; echo "Setting up Gym & dependencies. Takes 5-20 minutes, based on internet speed."

read -rsp $'>> Press enter to begin <<\n'

echo;echo "**** OPENAI GYM SETUP SCRIPT ****"
echo "(Part 1) OpenAIGym folder"
echo "*********************************"; echo

sleep 1
dir="OpenAIGym"
if [ "${PWD##*/}" != $dir ]; then 
     if [ ! -d $dir ]; then
          mkdir $dir
     fi
     cd "$dir"
fi

echo "(Part 1) Success!"
echo; echo "**** OPENAI GYM SETUP SCRIPT ****"
echo "(Part 2) Setup Homebrew"
echo "*********************************"; sleep 1; echo
echo "Reaching out to Homebrew..."

if command_exists brew ; then
    echo "Brew already installed. Moving forward."
else
    echo "Installing Homebrew. Enter your system password at prompt, then press enter."
    tput setaf 4
    echo "(Tip) After entering password, it takes awhile."
    tput sgr0
    sleep 8
    echo "Downloading Homebrew..."
    # Install Homebrew
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
fi

echo; echo "(Part 2) Success!"
echo; echo "**** OPENAI GYM SETUP SCRIPT ****"
echo "(Part 3) Setup Python 3 / Conda"
tput setaf 4
echo "(Tip) Say 'yes' to each prompt that asks"
echo "(Tip) Scroll down the license by holding enter"
tput sgr0
echo "*********************************"; echo
read -rsp $'>> Press enter to continue <<\n'

source ~/.bash_profile
if command_exists conda ; then
    
    echo "Updating conda..."
    conda update conda
    case "$(python --version 2>&1)" in
    *" 3.6"*)
        echo "Using Python 3.6 already. Continuing..."
        ;;
    *)
        echo "Switching to Python 3.6 using Conda..."
        
        set +e
        conda create -n p36 python=3.6
        set -e
        source activate p36
        tput setaf 4
        echo "(Tip) New terminal tabs/windows must run 'source activate p36' for Gym"
        echo "(Tip) Add the above command to your .bash_profile for auto-activation"
        tput sgr0
        read -rsp $'>> Press enter to continue <<\n'
        ;;
     esac
else
    # Install conda
    echo "Installing Miniconda python package/environment manager..."
    safe_brew_install wget
    
    wget -c -nc https://repo.continuum.io/miniconda/Miniconda3-latest-MacOSX-x86_64.sh
    chmod +x Miniconda3-latest-MacOSX-x86_64.sh
    ./Miniconda3-latest-MacOSX-x86_64.sh
    # Dying around here for some reason, suddenly. Is it -nc flag? Or...?
    echo "Finished installing Miniconda"
    rm Miniconda3-latest-MacOSX-x86_64.sh
    echo "Refreshed .bash_profile"
    source ~/.bash_profile
    tput setaf 4
    echo "(Tip) For Conda to work, restart Terminal after the script completes."
    tput sgr0
    read -rsp $'>> Press enter to continue <<\n'
fi

echo; echo "(Part 3) Success!"
echo; echo "**** OPENAI GYM SETUP SCRIPT ****"
echo "Part 4 | Configure Dependencies"
echo "*********************************"; sleep 1; echo

echo "Install Xcode Command Line Tools if needed (disregard error)..."
read -rsp $'>> Press enter to continue <<\n'

set +e
xcode-select --install
set -e
if command_exists xcode-select ; then 
    echo; echo "[CHECK] Xcode Command Line Tools successfully configured."
else
    echo "Failed to install Xcode Command Line tools. Exiting"
    exit 0
fi

safe_brew_install cmake swig boost boost-python sdl2 wget

echo; echo "(Part 4) Success!"
echo; echo "**** OPENAI GYM SETUP SCRIPT ****"
echo "(Part 5) Install OpenAI Gym"
tput setaf 4
echo "(Tip) The pachi-py step takes awhile."
tput sgr0
echo "*********************************"; sleep 1; echo

pip install 'gym[all]'

echo; echo "(Part 5) Success!"
echo; echo "**** OPENAI GYM SETUP SCRIPT ****"
echo "(Part 6) Download and run an example agent"
echo "*********************************"; sleep 1; echo

wget -c -nc https://raw.githubusercontent.com/andrewschreiber/scripts/master/example_agent.py

# Q: How many sample agents should we download?
# A: One for each exercise. Perhaps with hyperparameters generated by random.

python example_agent.py

echo "[CHECK] Gym is working."

echo; echo
tput setaf 54
echo "  ███████╗ ██╗   ██╗  ██████╗  ██████╗ ███████╗ ███████╗ ███████╗    ██╗"
echo "  ██╔════╝ ██║   ██║ ██╔════╝ ██╔════╝ ██╔════╝ ██╔════╝ ██╔════╝    ██║"
echo "  ███████╗ ██║   ██║ ██║      ██║      █████╗   ███████╗ ███████╗    ██║"
echo "  ╚════██║ ██║   ██║ ██║      ██║      ██╔══╝   ╚════██║ ╚════██║    ╚═╝"
echo "  ███████║ ╚██████╔╝ ╚██████╗ ╚██████╗ ███████╗ ███████║ ███████║    ██╗"
echo "  ╚══════╝  ╚═════╝   ╚═════╝  ╚═════╝ ╚══════╝ ╚══════╝ ╚══════╝    ╚═╝"
tput sgr0
echo; echo; 
echo "Open AI Gym setup complete."
echo "Use 'import gym' to use Gym in python"
echo "You can uninstall with 'pip uninstall gym'"
echo
echo "For next steps, go to the Getting Started with OpenAI Gym Safety blog post"
echo
echo "www.medium.com/blogpost"
echo

update: script fails at "Building wheel for box2d-py (setup.py) ... error"