72 lines
2.6 KiB
Elixir
72 lines
2.6 KiB
Elixir
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## The contents of this file are subject to the Mozilla Public License
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## Version 1.1 (the "License"); you may not use this file except in
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## compliance with the License. You may obtain a copy of the License
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## at http://www.mozilla.org/MPL/
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##
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## Software distributed under the License is distributed on an "AS IS"
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## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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## the License for the specific language governing rights and
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## limitations under the License.
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##
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## The Original Code is RabbitMQ.
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##
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## The Initial Developer of the Original Code is GoPivotal, Inc.
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## Copyright (c) 2007-2016 Pivotal Software, Inc. All rights reserved.
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defmodule RabbitMQ.CLI.DefaultOutput do
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alias RabbitMQ.CLI.Ctl.Helpers, as: Helpers
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alias RabbitMQ.CLI.ExitCodes, as: ExitCodes
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defmacro __using__(_opts) do
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quote do
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def normalize_output(:ok), do: :ok
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def normalize_output({:ok, _} = input), do: input
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def normalize_output({:badrpc, :nodedown} = input), do: input
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def normalize_output({:badrpc, :timeout} = input), do: input
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def normalize_output({:refused, _, _, _} = input), do: input
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def normalize_output({:bad_option, _} = input), do: input
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def normalize_output({:error, _} = input), do: input
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def normalize_output(unknown) when is_atom(unknown), do: {:error, unknown}
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def normalize_output({unknown, _} = input) when is_atom(unknown), do: {:error, input}
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def normalize_output(result) when not is_atom(result), do: {:ok, result}
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def output(result, opts) do
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result
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|> normalize_output()
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|> format_output(opts)
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end
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defp format_output({:badrpc, :nodedown} = result, opts) do
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{:error, ExitCodes.exit_code_for(result),
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["Error: unable to connect to node '#{opts[:node]}': nodedown"]}
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end
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defp format_output({:badrpc, :timeout} = result, opts) do
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{:error, ExitCodes.exit_code_for(result),
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["Error: {timeout, #{opts[:timeout]}}"]}
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end
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defp format_output({:error, err} = result, _) do
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string_err = string_or_inspect(err)
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{:error, ExitCodes.exit_code_for(result), ["Error:\n#{string_err}"]}
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end
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defp format_output(:ok) do
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:ok
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end
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defp format_output({:ok, output}, _) do
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case Enumerable.impl_for(output) do
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nil -> {:ok, output};
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_ -> {:stream, output}
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end
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end
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defp string_or_inspect(val) do
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case String.Chars.impl_for(val) do
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nil -> inspect(val);
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_ -> to_string(val)
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end
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end
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end
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end
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end
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