1 files changed, 45 insertions, 0 deletions
diff --git a/src/rebar_prv_do.erl b/src/rebar_prv_do.erl
new file mode 100644
index 0000000..a2ac648
--- /dev/null
+++ b/src/rebar_prv_do.erl
@@ -0,0 +1,45 @@
+%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ts=4 sw=4 et
+
+-module(rebar_prv_do).
+
+-behaviour(rebar_provider).
+
+-export([init/1,
+         do/1]).
+
+-include("rebar.hrl").
+
+-define(PROVIDER, do).
+-define(DEPS, []).
+
+%% ===================================================================
+%% Public API
+%% ===================================================================
+
+-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
+init(State) ->
+    State1 = rebar_state:add_provider(State, #provider{name = ?PROVIDER,
+                                                       provider_impl = ?MODULE,
+                                                       bare = false,
+                                                       deps = ?DEPS,
+                                                       example = "rebar3 do <task1>, <task2>, ...",
+                                                       short_desc = "Higher order provider for running multiple tasks in a sequence.",
+                                                       desc = "",
+                                                       opts = []}),
+    {ok, State1}.
+
+-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | relx:error().
+do(State) ->
+    Tasks = args_to_tasks(rebar_state:command_args(State)),
+    State1 = lists:foldl(fun(TaskArgs, 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, State, Tasks),
+    {ok, State1}.
+
+args_to_tasks(Args) ->
+    [string:strip(T) || T <- string:tokens(string:join(Args, " "), ",")].