Support conda env on cmder prompt and some custom lamb chars

clink.lua

function set_prompt_filter()
    -- orig: $E[1;32;40m$P$S{git}{hg}$S$_$E[1;30;40m{lamb}$S$E[0m
    -- color codes: "\x1b[1;37;40m"
    cwd = clink.get_cwd()
    conda_env = get_conda_env()
    virtual_env = get_virtual_env()
    if virtual_env then
      prompt = "\x1b[1;32;40m{cwd} {git}{hg} \n\x1b[1;30;40m({virtual_env}){lamb} \x1b[0m"
      new_value = string.gsub(prompt, "{cwd}", cwd)
      new_value = string.gsub(new_value, "{virtual_env}", virtual_env)
    else
      if conda_env then
        prompt = "\x1b[1;32;40m{cwd} {git}{hg} \n\x1b[1;30;40m({conda_env}){lamb} \x1b[0m"
        new_value = string.gsub(prompt, "{cwd}", cwd)
        new_value = string.gsub(new_value, "{conda_env}", conda_env)
      else
        prompt = "\x1b[1;32;40m{cwd} {git}{hg} \n\x1b[1;30;40m{lamb} \x1b[0m"
        new_value = string.gsub(prompt, "{cwd}", cwd)
      end
    end
    clink.prompt.value = string.gsub(new_value, "{lamb}", "➜")
    --➤
    --➜
end

function get_virtual_env()
  virtual_env = clink.get_env('VIRTUAL_ENV')
  if virtual_env then
    _prompt = clink.get_env('PROMPT')
    _env_name = string.gsub(_prompt, "%$P%$G", "")
    _env_name = string.gsub(_env_name, "%(", "")
    _env_name = string.gsub(_env_name, "%)%s", "")
    return _env_name
  end
  return false
end

function get_conda_env()
  conda_new_env = clink.get_env('CONDA_DEFAULT_ENV')
  if conda_new_env then
    return conda_new_env
  end
  return false
end