From fe4a10141baa00e33e0c6f04f2a67b80107729b7 Mon Sep 17 00:00:00 2001
From: Tristan Sloughter <t@crashfast.com>
Date: Sun, 18 Jan 2015 09:35:07 -0600
Subject: do provider returns the error of the first provider to fail and stops

---
 src/rebar_prv_do.erl | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/src/rebar_prv_do.erl b/src/rebar_prv_do.erl
index c2bbe2b..5dec7d8 100644
--- a/src/rebar_prv_do.erl
+++ b/src/rebar_prv_do.erl
@@ -33,13 +33,21 @@ init(State) ->
 -spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
 do(State) ->
     Tasks = args_to_tasks(rebar_state:command_args(State)),
-    lists:foldl(fun(TaskArgs, {ok, StateAcc}) ->
-                        [TaskStr | Args] = string:tokens(TaskArgs, " "),
-                        Task = list_to_atom(TaskStr),
-                        StateAcc1 = rebar_state:set(StateAcc, task, Task),
-                        StateAcc2 = rebar_state:command_args(StateAcc1, Args),
-                        rebar_core:process_command(StateAcc2, Task)
-                end, {ok, State}, Tasks).
+    do_tasks(Tasks, State).
+
+do_tasks([], State) ->
+    {ok, State};
+do_tasks([TaskArgs | Tail], State) ->
+    [TaskStr | Args] = string:tokens(TaskArgs, " "),
+    Task = list_to_atom(TaskStr),
+    State1 = rebar_state:set(State, task, Task),
+    State2 = rebar_state:command_args(State1, Args),
+    case rebar_core:process_command(State2, Task) of
+        {ok, State3} ->
+            do_tasks(Tail, State3);
+        Error ->
+            Error
+    end.
 
 -spec format_error(any()) -> iolist().
 format_error(Reason) ->
-- 
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