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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) 2007-2023 Broadcom. All Rights Reserved. The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. All rights reserved.
defmodule RabbitMQ.CLI.Ctl.Commands.ExecCommand do
alias RabbitMQ.CLI.Core.DocGuide
@behaviour RabbitMQ.CLI.CommandBehaviour
use RabbitMQ.CLI.Core.MergesNoDefaults
def switches(), do: [offline: :boolean]
def distribution(%{offline: true}), do: :none
def distribution(%{}), do: :cli
def validate([], _) do
{:validation_failure, :not_enough_args}
end
def validate(args, _) when length(args) > 1 do
{:validation_failure, :too_many_args}
end
def validate([""], _) do
{:validation_failure, "Expression must not be blank"}
end
def validate([string], _) do
try do
_ = Code.compile_string(string)
:ok
rescue
ex in SyntaxError ->
{:validation_failure, "SyntaxError: " <> Exception.message(ex)}
_ ->
:ok
end
end
def run([expr], %{} = opts) do
try do
{val, _} = Code.eval_string(expr, [options: opts], __ENV__)
{:ok, val}
rescue
ex ->
{:error, Exception.message(ex)}
end
end
use RabbitMQ.CLI.DefaultOutput
def formatter(), do: RabbitMQ.CLI.Formatters.Inspect
def banner(_, _), do: nil
def usage, do: "exec <expression> [--offline]"
def usage_additional() do
[
["<expression>", "Expression to evaluate"],
["--offline", "disable inter-node communication"]
]
end
def usage_doc_guides() do
[
DocGuide.cli(),
DocGuide.monitoring(),
DocGuide.troubleshooting()
]
end
def help_section(), do: :operations
def description(), do: "Evaluates a snippet of Elixir code on the CLI node"
end
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