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+## This Source Code Form is subject to the terms of the Mozilla Public
+## License, v. 2.0. If a copy of the MPL was not distributed with this
+## file, You can obtain one at https://mozilla.org/MPL/2.0/.
+##
+## Copyright (c) 2007-2020 VMware, Inc. or its affiliates. All rights reserved.
+
+defmodule RabbitMQ.CLI.Ctl.Commands.EvalFileCommand do
+ alias RabbitMQ.CLI.Core.{DocGuide, ErlEval, ExitCodes}
+ alias RabbitMQ.CLI.Ctl.Commands.EvalCommand
+
+ @behaviour RabbitMQ.CLI.CommandBehaviour
+
+ use RabbitMQ.CLI.Core.MergesNoDefaults
+
+ def validate([], _) do
+ {:validation_failure, :not_enough_args}
+ end
+
+ def validate(["" | _], _) do
+ {:validation_failure, "File path must not be blank"}
+ end
+
+ def validate([file_path], _) do
+ case File.read(file_path) do
+ {:ok, expr} ->
+ case ErlEval.parse_expr(expr) do
+ {:ok, _} -> :ok
+ {:error, err} -> {:validation_failure, err}
+ end
+ {:error, :enoent} ->
+ {:validation_failure, "File #{file_path} does not exist"}
+ {:error, :eacces} ->
+ {:validation_failure, "Insufficient permissions to read file #{file_path}"}
+ {:error, err} ->
+ {:validation_failure, err}
+ end
+ end
+
+ def run([file_path], opts) do
+ case File.read(file_path) do
+ {:ok, expr} -> EvalCommand.run([expr], opts)
+ {:error, err} -> {:error, err}
+ end
+
+ end
+
+ def output({:error, msg}, _) do
+ {:error, ExitCodes.exit_dataerr(), "Evaluation failed: #{msg}"}
+ end
+ use RabbitMQ.CLI.DefaultOutput
+
+ def formatter(), do: RabbitMQ.CLI.Formatters.Erlang
+
+ def usage, do: "eval_file <file path>"
+
+ def usage_additional() do
+ [
+ ["<file path>", "Path to the file to evaluate"]
+ ]
+ end
+
+ def usage_doc_guides() do
+ [
+ DocGuide.cli(),
+ DocGuide.monitoring(),
+ DocGuide.troubleshooting()
+ ]
+ end
+
+ def help_section(), do: :operations
+
+ def description(), do: "Evaluates a file that contains a snippet of Erlang code on the target node"
+
+ def banner(_, _), do: nil
+end