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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.Diagnostics.Commands.OsEnvCommand do
@moduledoc """
Lists RabbitMQ-specific environment variables defined on target node
"""
import RabbitMQ.CLI.Core.Platform, only: [line_separator: 0]
@behaviour RabbitMQ.CLI.CommandBehaviour
def scopes(), do: [:diagnostics]
use RabbitMQ.CLI.Core.AcceptsDefaultSwitchesAndTimeout
use RabbitMQ.CLI.Core.MergesNoDefaults
use RabbitMQ.CLI.Core.AcceptsNoPositionalArguments
use RabbitMQ.CLI.Core.RequiresRabbitAppRunning
def run([], %{node: node_name, timeout: timeout}) do
case :rabbit_misc.rpc_call(node_name, :rabbit_env, :get_used_env_vars, [], timeout) do
{:error, _} = err ->
err
{:error, _, _} = err ->
err
xs when is_list(xs) ->
# convert keys and values to binaries (Elixir strings)
xs
|> Enum.map(fn {k, v} ->
{:rabbit_data_coercion.to_binary(k), :rabbit_data_coercion.to_binary(v)}
end)
|> :maps.from_list()
other ->
other
end
end
def output([], %{formatter: fmt}) when fmt == "csv" or fmt == "erlang" do
{:ok, []}
end
def output([], %{node: node_name, formatter: "json"}) do
{:ok, %{"result" => "ok", "node" => node_name, "variables" => []}}
end
def output([], %{node: node_name}) do
{:ok, "Node #{node_name} reported no relevant environment variables."}
end
def output(vars, %{node: node_name, formatter: "json"}) do
{:ok, %{"result" => "ok", "node" => node_name, "variables" => vars}}
end
def output(vars, %{formatter: "csv"}) do
{:stream, [Enum.map(vars, fn {k, v} -> [variable: k, value: v] end)]}
end
def output(vars, _opts) do
lines = Enum.map(vars, fn {k, v} -> "#{k}=#{v}" end) |> Enum.join(line_separator())
{:ok, lines}
end
def usage() do
"os_env"
end
def help_section(), do: :configuration
def description(), do: "Lists RabbitMQ-specific environment variables set on target node"
def banner(_, %{node: node_name}) do
"Listing RabbitMQ-specific environment variables defined on node #{node_name}..."
end
end
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