From: Peter Lemenkov <lemenkov@gmail.com>

Date: Wed, 25 May 2016 22:24:44 +0300

Subject: [PATCH] Revert "Distinct exit-codes for CLI utilities"

This reverts commit 7984540175d0b8852025165b6b6a0ac05d692c98.

diff --git a/include/rabbit_cli.hrl b/include/rabbit_cli.hrl

index 7f5db60..01cb91c 100644

--- a/include/rabbit_cli.hrl

+++ b/include/rabbit_cli.hrl

@@ -46,14 +46,3 @@

 -define(RAM_DEF, {?RAM_OPT, flag}).

 -define(OFFLINE_DEF, {?OFFLINE_OPT, flag}).

 -define(ONLINE_DEF, {?ONLINE_OPT, flag}).

-

-%% Subset of standartized exit codes from sysexits.h, see

-%% https://github.com/rabbitmq/rabbitmq-server/issues/396 for discussion.

--define(EX_OK         ,  0).

--define(EX_USAGE      , 64).  % Bad command-line arguments.

--define(EX_DATAERR    , 65).  % Wrong data in command-line arguments.

--define(EX_NOUSER     , 67).  % The user specified does not exist.

--define(EX_UNAVAILABLE, 69).  % Could not connect to the target node.

--define(EX_SOFTWARE   , 70).  % Failed to execute command.

--define(EX_TEMPFAIL   , 75).  % Temporary error (e.g. something has timed out).

--define(EX_CONFIG     , 78).  % Misconfiguration detected

diff --git a/src/rabbit_cli.erl b/src/rabbit_cli.erl

index 6b35482..dc490ad 100644

--- a/src/rabbit_cli.erl

+++ b/src/rabbit_cli.erl

@@ -58,7 +58,7 @@ ensure_cli_distribution() ->

         {error, Error} ->

             print_error("Failed to initialize erlang distribution: ~p.",

                         [Error]),

-            rabbit_misc:quit(?EX_TEMPFAIL)

+            rabbit_misc:quit(2)

     end.

 %%----------------------------------------------------------------------------

@@ -84,10 +84,10 @@ main(ParseFun, DoFun, UsageMod) ->

     %% thrown errors into normal return values

     case catch DoFun(Command, Node, Args, Opts) of

         ok ->

-            rabbit_misc:quit(?EX_OK);

+            rabbit_misc:quit(0);

         {ok, Result} ->

             rabbit_control_misc:print_cmd_result(Command, Result),

-            rabbit_misc:quit(?EX_OK);

+            rabbit_misc:quit(0);

         {'EXIT', {function_clause, [{?MODULE, action, _}    | _]}} -> %% < R15

             PrintInvalidCommandError(),

             usage(UsageMod);

@@ -97,51 +97,51 @@ main(ParseFun, DoFun, UsageMod) ->

         {error, {missing_dependencies, Missing, Blame}} ->

             print_error("dependent plugins ~p not found; used by ~p.",

                         [Missing, Blame]),

-            rabbit_misc:quit(?EX_CONFIG);

+            rabbit_misc:quit(2);

         {'EXIT', {badarg, _}} ->

             print_error("invalid parameter: ~p", [Args]),

-            usage(UsageMod, ?EX_DATAERR);

+            usage(UsageMod, 2);

         {error, {Problem, Reason}} when is_atom(Problem), is_binary(Reason) ->

             %% We handle this common case specially to avoid ~p since

             %% that has i18n issues

             print_error("~s: ~s", [Problem, Reason]),

-            rabbit_misc:quit(?EX_SOFTWARE);

+            rabbit_misc:quit(2);

         {error, Reason} ->

             print_error("~p", [Reason]),

-            rabbit_misc:quit(?EX_SOFTWARE);

+            rabbit_misc:quit(2);

         {error_string, Reason} ->

             print_error("~s", [Reason]),

-            rabbit_misc:quit(?EX_SOFTWARE);

+            rabbit_misc:quit(2);

         {badrpc, {'EXIT', Reason}} ->

             print_error("~p", [Reason]),

-            rabbit_misc:quit(?EX_SOFTWARE);

+            rabbit_misc:quit(2);

         {badrpc, Reason} ->

             case Reason of

                 timeout ->

                     print_error("operation ~w on node ~w timed out", [Command, Node]),

-                    rabbit_misc:quit(?EX_TEMPFAIL);

+                    rabbit_misc:quit(2);

                 _ ->

                     print_error("unable to connect to node ~w: ~w", [Node, Reason]),

                     print_badrpc_diagnostics([Node]),

                     case Command of

-                        stop -> rabbit_misc:quit(?EX_OK);

-                        _    -> rabbit_misc:quit(?EX_UNAVAILABLE)

+                        stop -> rabbit_misc:quit(0);

+                        _    -> rabbit_misc:quit(2)

                     end

             end;

         {badrpc_multi, Reason, Nodes} ->

             print_error("unable to connect to nodes ~p: ~w", [Nodes, Reason]),

             print_badrpc_diagnostics(Nodes),

-            rabbit_misc:quit(?EX_UNAVAILABLE);

+            rabbit_misc:quit(2);

         function_clause ->

             print_error("operation ~w used with invalid parameter: ~p",

                         [Command, Args]),

             usage(UsageMod);

         {refused, Username, _, _} ->

             print_error("failed to authenticate user \"~s\"", [Username]),

-            rabbit_misc:quit(?EX_NOUSER);

+            rabbit_misc:quit(2);

         Other ->

             print_error("~p", [Other]),

-            rabbit_misc:quit(?EX_SOFTWARE)

+            rabbit_misc:quit(2)

     end.

 start_distribution_anon(0, LastError) ->

@@ -172,7 +172,7 @@ name_type() ->

     end.

 usage(Mod) ->

-    usage(Mod, ?EX_USAGE).

+    usage(Mod, 1).

 usage(Mod, ExitCode) ->

     io:format("~s", [Mod:usage()]),