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Diffstat (limited to 'deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/eval_file_command.ex')
-rw-r--r-- | deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/eval_file_command.ex | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/eval_file_command.ex b/deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/eval_file_command.ex new file mode 100644 index 0000000000..6f46abbf17 --- /dev/null +++ b/deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/eval_file_command.ex @@ -0,0 +1,75 @@ +## 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 |