54 lines
1.6 KiB
Elixir
54 lines
1.6 KiB
Elixir
## The contents of this file are subject to the Mozilla Public License
|
|
## Version 1.1 (the "License"); you may not use this file except in
|
|
## compliance with the License. You may obtain a copy of the License
|
|
## at http://www.mozilla.org/MPL/
|
|
##
|
|
## Software distributed under the License is distributed on an "AS IS"
|
|
## basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
|
## the License for the specific language governing rights and
|
|
## limitations under the License.
|
|
##
|
|
## The Original Code is RabbitMQ.
|
|
##
|
|
## The Initial Developer of the Original Code is GoPivotal, Inc.
|
|
## Copyright (c) 2007-2016 Pivotal Software, Inc. All rights reserved.
|
|
|
|
|
|
defmodule Parser do
|
|
|
|
# Input: A list of strings
|
|
# Output: A 2-tuple of lists: one containing the command,
|
|
# one containing flagged options.
|
|
def parse(command) do
|
|
{options, cmd, invalid} = OptionParser.parse(
|
|
command,
|
|
switches: [node: :atom, quiet: :boolean, timeout: :integer, vhost: :string] ++
|
|
commands_switches(),
|
|
aliases: [p: :vhost, n: :node, q: :quiet, t: :timeout]
|
|
)
|
|
{clear_on_empty_command(cmd), options_map(options), invalid}
|
|
end
|
|
|
|
defp commands_switches() do
|
|
Enum.reduce(Helpers.commands,
|
|
[],
|
|
fn({_, command}, switches) ->
|
|
switches ++ command.switches()
|
|
end)
|
|
end
|
|
|
|
defp options_map(opts) do
|
|
opts
|
|
|> Map.new
|
|
end
|
|
|
|
# Discards entire command if first command term is empty.
|
|
defp clear_on_empty_command(command_args) do
|
|
case command_args do
|
|
[] -> []
|
|
[""|_] -> []
|
|
[_head|_] -> command_args
|
|
end
|
|
end
|
|
end
|