fish functions: start ngrok and copy url to clipboard

ng.fish

function ng --description "ng <port>"
    if test -z "$argv[1]"
        set port 3000
    else
        set port $argv[1]
    end

    # Run ngrok in the background
    ngrok http $port > /dev/null &

    # Allow ngrok to establish the tunnel
    sleep 1

    # Extract the forwarding URL from ngrok's console output
    set forwarding_url (curl -s http://127.0.0.1:4040/api/tunnels | awk -F'public_url":"' '{print $2}' | awk -F'"' '{print $1}')

    # Trim whitespace, newlines and copy the forwarding URL to clipboard
    echo $forwarding_url | tr -d '\n' | pbcopy

    # Display a message with the copied URL
    echo "Forwarding URL ($port): $forwarding_url copied to clipboard."
end

ngk.fish

function ngk
    # Get the PID of the ngrok process
    set ngrok_pid (pgrep ngrok)

    if test -n "$ngrok_pid"
        # Terminate the ngrok process
        kill $ngrok_pid

        echo "ngrok connection terminated."
    else
        echo "ngrok process not found."
    end
end