Install neovim on Linux (and maybe OSX) as Python and C# IDE

install_neovim_python_csharp.sh

#!/usr/bin/env bash

# Installation directory
DIR=$HOME/app

NVIM_URL_LINUX="https://github.com/neovim/neovim/releases/download/stable/nvim.appimage"
NVIM_URL_MACOS="https://github.com/neovim/neovim/releases/download/stable/nvim-macos.tar.gz"

mkdir -p ${DIR}
cd ${DIR}

# Install Neovim
if [[ "$OSTYPE" == "linux-gnu" ]]; then
    mkdir nvim 
    cd nvim
    curl -L $NVIM_URL_LINUX --output nvim.appimage
    chmod +x nvim.appimage
    ./nvim.appimage +qall
    ret=$?
    if [ $ret -ne 0 ]; then
        echo "Cannot run nvim as appimage"
        # TODO: try to extract appimage and run
        exit 1
    else
        # Update .bashrc
        echo "alias vim=${DIR}/nvim/nvim.appimage"  >> $HOME/.bashrc
        echo "alias nvim=${DIR}/nvim/nvim.appimage" >> $HOME/.bashrc
        alias vim=${DIR}/nvim/nvim.appimage
    fi
elif [[ "$OSTYPE" == "darwin"* ]]; then
    curl -L $NVIM_URL_MACOS --output nvim.tar.gz
    tar xf nvim.tar.gz
    mv nvim-osx64 nvim
    cd nvim
    chmod +x bin/nvim
    ./bin/nvim +qall
    ret=$?
    if [ $ret -ne 0 ]; then
        echo "Cannot run nvim"
        exit 1
    fi
    echo "export PATH=${DIR}/nvim/bin:"'$PATH' >> $HOME/.bash_profile
    echo "alias vim=nvim"  >> $HOME/.bash_profile
    export PATH=${DIR}/nvim/bin:$PATH
    alias vim=nvim
else
    echo "OS $OSTYPE not supported"
    exit 1
fi

# Init neovim config
mkdir -p $HOME/.config/nvim/colors
git clone https://gist.github.com/5501c027c312516d2aa44f1c7194c46e.git nvimrc
cat nvimrc/.vimrc > $HOME/.config/nvim/init.vim

# Install python neovim package
pip3 install neovim
ret=$?
if [ $ret -ne 0 ]; then
    echo "Cannot install python neovim package"
    exit 1
fi

# Install jedi
pip3 install jedi
ret=$?
if [ $ret -ne 0 ]; then
    echo "Cannot install python jedi package"
    exit 1
fi

# Install vim-plug
curl -fLo ~/.local/share/nvim/site/autoload/plug.vim --create-dirs \
    https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim

# Install lucius.vim
echo "Downloading lucius.vim"
curl -fLo ~/.config/nvim/colors/lucius.vim --create-dirs \
    https://raw.githubusercontent.com/jonathanfilip/vim-lucius/master/colors/lucius.vim

# Install vim plug-ins 
$HOME/app/nvim/nvim.appimage +PlugInstall