[WIP] Install and/or update Private Internet Access' available OpenVPN config with Tunnelblick on macOS

pia-openvpn-tunnelblick.sh

#!/bin/env bash

echo "This script is a work in progress." @DEBUG

# Assumes that wget is installed.
echo "Install configurations for all Users?"
# Move config files to (i) user directory or (ii) all-users directory, based on user's input 

# Download and unzip config files
wget https://www.privateinternetaccess.com/openvpn/openvpn.zip -P /tmp
# Maybe calculate hash of zip file so that in future we can stop here if user attempts
#   to upgrade and there is no newer version
unzip /tmp/openvpn.zip -d /tmp/openvpn-config
# Change permissions
# Move config files

# if username not stored already:
echo "Enter PIA username:"
# Store username securely, maybe osxkeychain

# if passphrase not stored already:
echo "Enter PIA passphrase:"
# Store passphrase securely, maybe osxkeychain

echo "Testing connection with _________"
# Connect to some random server, maybe based on ping
# After connection, verify that network adapter can still send/receive

# if argv[1] == "install" || arv[1] == "reinstall"
echo "Installation successful"
# else if argv[1] == "upgrade" || arv[1] == "update"
echo "PIA OpenVPN update complete."