Handle auto-completion line as argv, not a single argument

It's easier to detect a script name if passed as argv list.
Arguments can be parsed with quoted spaces (e.g. in directory path)

deps/rabbitmq_cli/lib/rabbitmq/cli/auto_complete.ex

@@ -18,18 +18,16 @@ defmodule Rabbitmq.CLI.AutoComplete do
   alias RabbitMQ.CLI.Core.Parser, as: Parser
   alias RabbitMQ.CLI.Core.CommandModules, as: CommandModules
 
-  @spec complete(String.t) :: [String.t]
-  def complete(script_name, str) do
-    tokens = String.split(str, " ", trim: true)
-    case List.last(tokens) do
-      nil   -> [];
-      _last ->
-        case Parser.parse_global(tokens) do
-          %{script_name: _args_script_name} ->
-            complete(tokens);
-          _                                ->
-            complete(["--script-name", script_name | tokens])
-        end
+  @spec complete(String.t, [String.t]) :: [String.t]
+  def complete(_, []) do
+    []
+  end
+  def complete(script_name, args) do
+    case Parser.parse_global(args) do
+      %{script_name: _args_script_name} ->
+        complete(args);
+      _                                ->
+        complete(["--script-name", script_name | args])
     end
   end
 
@@ -48,6 +46,7 @@ defmodule Rabbitmq.CLI.AutoComplete do
       {command, _} ->
         complete_command_opts(command, last_token)
     end
+    |> Enum.sort
   end
 
   defp complete_default_opts(opt) do

deps/rabbitmq_cli/lib/rabbitmqctl.ex

@@ -27,12 +27,12 @@ defmodule RabbitMQCtl do
   @type options() :: Map.t
   @type command_result() :: {:error, ExitCodes.exit_code, term()} | term()
 
-  def main(["--auto-complete", str]) do
-    case extract_auto_complete_args(str) do
-      #Script name is not supported
-      nil -> :ok;
-      {script_name, args_string} -> auto_complete(script_name, args_string)
-    end
+  def main(["--auto-complete" | []]) do
+    handle_shutdown(:ok)
+  end
+  def main(["--auto-complete", script_name | args]) do
+    script_basename = Path.basename(script_name)
+    auto_complete(script_basename, args)
   end
   def main(unparsed_command) do
     unparsed_command
@@ -91,22 +91,8 @@ defmodule RabbitMQCtl do
     exit_program(ExitCodes.exit_ok)
   end
 
-  def extract_auto_complete_args(str) do
-    Application.get_env(:rabbitmqctl, :scopes, [])
-    |> Enum.reduce(nil,
-      fn({key, _}, nil) ->
-        script_name = to_string(key)
-        case String.split(str, script_name <> " ", parts: 2) do
-          [_path, args] -> {script_name, args}
-          [_]           -> nil
-        end;
-      # Skip remaining script names
-      (_, val) -> val
-      end)
-  end
-
-  def auto_complete(script_name, str) do
-    Rabbitmq.CLI.AutoComplete.complete(script_name, str)
+  def auto_complete(script_name, args) do
+    Rabbitmq.CLI.AutoComplete.complete(script_name, args)
     |> Stream.map(&IO.puts/1) |> Stream.run
     exit_program(ExitCodes.exit_ok)
   end

deps/rabbitmq_cli/test/core/auto_complete_test.exs

@@ -21,33 +21,41 @@ defmodule AutoCompleteTest do
 
 
   test "Auto-completes a command" do
-    ["canis_lupus", "canis_latrans", "canis_aureus"] = @subject.complete("rabbitmqctl", "canis")
-    ["canis_lupus", "canis_latrans", "canis_aureus"] = @subject.complete("rabbitmqctl", "canis_")
-    ["canis_lupus", "canis_latrans"] = @subject.complete("rabbitmqctl", "canis_l")
-    ["canis_latrans"] = @subject.complete("rabbitmqctl", "canis_la")
-    ["canis_aureus"] = @subject.complete("rabbitmqctl", "canis_a")
-    ["canis_aureus"] = @subject.complete("rabbitmqctl", "--node foo --quet canis_a")
+    ["canis_aureus", "canis_latrans", "canis_lupus"] = @subject.complete("rabbitmqctl", ["canis"])
+    ["canis_aureus", "canis_latrans", "canis_lupus"] = @subject.complete("rabbitmqctl", ["canis_"])
+    ["canis_latrans", "canis_lupus"] = @subject.complete("rabbitmqctl", ["canis_l"])
+    ["canis_latrans"] = @subject.complete("rabbitmqctl", ["canis_la"])
+    ["canis_aureus"] = @subject.complete("rabbitmqctl", ["canis_a"])
+    ["canis_aureus"] = @subject.complete("rabbitmqctl", ["--node", "foo", "--quet", "canis_a"])
   end
 
   test "Auto-completes default options if command is not specified" do
-    ["--vhost"] = @subject.complete("rabbitmqctl", "--vh")
+    ["--vhost"] = @subject.complete("rabbitmqctl", ["--vh"])
     ## Prints script_name as script-name
-    ["--script-name"] = @subject.complete("rabbitmqctl", "--script")
-    ["--script-name"] = @subject.complete("rabbitmqctl", "--node foo --script")
+    ["--script-name"] = @subject.complete("rabbitmqctl", ["--script"])
+    ["--script-name"] = @subject.complete("rabbitmqctl", ["--node", "foo", "--script"])
   end
 
   test "Auto-completes the command options if full command is specified" do
-    ["--colour", "--dingo", "--dog"] = @subject.complete("rabbitmqctl", "canis_lupus -")
-    ["--colour", "--dingo", "--dog"] = @subject.complete("rabbitmqctl", "canis_lupus --")
-    ["--dingo", "--dog"] = @subject.complete("rabbitmqctl", "canis_lupus --d")
+    ["--colour", "--dingo", "--dog"] = @subject.complete("rabbitmqctl", ["canis_lupus", "-"])
+    ["--colour", "--dingo", "--dog"] = @subject.complete("rabbitmqctl", ["canis_lupus", "--"])
+    ["--dingo", "--dog"] = @subject.complete("rabbitmqctl", ["canis_lupus", "--d"])
   end
 
   test "Auto-completes scoped command" do
-    ["enable"] = @subject.complete("rabbitmq-plugins", "enab")
+    ["enable"] = @subject.complete("rabbitmq-plugins", ["enab"])
+    scopes = Application.get_env(:rabbitmqctl, :scopes)
+    scopes_with_wolf = Keyword.put(scopes, :rabbitmq_wolf, :wolf)
+    Application.put_env(:rabbitmqctl, :scopes, scopes_with_wolf)
+    on_exit(fn() ->
+      Application.put_env(:rabbitmqctl, :scopes, scopes)
+    end)
+
+    ["canis_aureus", "canis_latrans", "canis_lupus"] = @subject.complete("rabbitmq_wolf", ["canis"])
   end
 
   test "Auto-completes scoped command with --script-name flag" do
-    ["enable"] = @subject.complete("rabbitmqctl", "--script-name rabbitmq-plugins enab")
+    ["enable"] = @subject.complete("rabbitmqctl", ["--script-name", "rabbitmq-plugins", "enab"])
   end
 end
 

deps/rabbitmq_cli/test/rabbitmqctl_test.exs

@@ -165,11 +165,16 @@ defmodule RabbitMQCtlTest do
 ## ------------------------- Auto-complete ------------------------------------
 
   test "rabbitmqctl auto-completes commands" do
-    check_output(["--auto-complete", "rabbitmqctl list_q"], "list_queues\n")
-    check_output(["--auto-complete", "/usr/bin/rabbitmqctl list_q"], "list_queues\n")
-    check_output(["--auto-complete", "/my/custom/path/rabbitmqctl list_q"], "list_queues\n")
-    check_output(["--auto-complete", "rabbitmq-plugins enab"], "enable\n")
-    check_output(["--auto-complete", "/path/to/rabbitmq-plugins enab"], "enable\n")
+    check_output(["--auto-complete", "rabbitmqctl", "list_q"], "list_queues\n")
+    check_output(["--auto-complete", "/usr/bin/rabbitmqctl", "list_q"], "list_queues\n")
+    check_output(["--auto-complete", "/my/custom/path/rabbitmqctl", "list_q"], "list_queues\n")
+    check_output(["--auto-complete", "rabbitmq-plugins", "enab"], "enable\n")
+    check_output(["--auto-complete", "/path/to/rabbitmq-plugins", "enab"], "enable\n")
+  end
+
+  test "invalid script name does not autocomplete" do
+    check_output(["--auto-complete", "rabbitmqinvalid list"], "")
+    check_output(["--auto-complete", "rabbitmqinvalid --script-name rabbitmqctl list"], "")
   end
 
   defp check_output(cmd, out) do