add do task

5 files changed, 64 insertions, 16 deletions

diff --git a/src/rebar.app.src b/src/rebar.app.src
index 59f35ca..2e21351 100644
--- a/src/rebar.app.src
+++ b/src/rebar.app.src
@@ -23,6 +23,7 @@
         %% any_dir processing modules
         {providers, [rebar_prv_escripter,
                      rebar_prv_deps,
+                     rebar_prv_do,
                      rebar_prv_lock,
                      rebar_prv_install_deps,
                      rebar_prv_packages,
diff --git a/src/rebar_core.erl b/src/rebar_core.erl
index 8732074..cb021e3 100644
--- a/src/rebar_core.erl
+++ b/src/rebar_core.erl
@@ -30,10 +30,6 @@
 
 -include("rebar.hrl").
 
-%% ===================================================================
-%% Internal functions
-%% ===================================================================
-
 process_command(State, Command) ->
     true = rebar_utils:expand_code_path(),
     LibDirs = rebar_state:get(State, lib_dirs, ?DEFAULT_LIB_DIRS),
@@ -50,6 +46,10 @@ process_command(State, Command) ->
                         Conf1
                 end, State, TargetProviders).
 
+%% ===================================================================
+%% Internal functions
+%% ===================================================================
+
 update_code_path([]) ->
     no_change;
 update_code_path(Paths) ->
diff --git a/src/rebar_plugins.erl b/src/rebar_plugins.erl
new file mode 100644
index 0000000..0fdbc6d
--- /dev/null
+++ b/src/rebar_plugins.erl
@@ -0,0 +1,12 @@
+%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ts=4 sw=4 et
+
+-module(rebar_plugins).
+
+-export([]).
+
+-include("rebar.hrl").
+
+%% ===================================================================
+%% Public API
+%% ===================================================================
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, " "), ",")].
diff --git a/src/rebar_prv_update.erl b/src/rebar_prv_update.erl
index 9df8e60..e19041a 100644
--- a/src/rebar_prv_update.erl
+++ b/src/rebar_prv_update.erl
@@ -33,18 +33,8 @@ init(State) ->
 do(State) ->
     case rebar_state:command_args(State) of
         [Name] ->
-            ?INFO("Updating ~s~n", [Name]),
-
-            DepsDir = rebar_prv_install_deps:get_deps_dir(State),
-            Deps = rebar_state:get(State, deps, []),
-            {_, _, Source} = lists:keyfind(list_to_atom(Name), 1, Deps),
-            TargetDir = rebar_prv_install_deps:get_deps_dir(DepsDir, Name),
-            rebar_fetch:update_source1(TargetDir, Source),
-            State1 = rebar_state:set(State, locks, []),
-            {ok, State2} = rebar_prv_install_deps:do(State1),
-            {ok, State3} = rebar_prv_lock:do(State2),
-            {ok, State4} = rebar_prv_compile:do(State3),
-            {ok, State4};
+            ?ERROR("NOT IMPLEMENTED: Updating ~s~n", [Name]),
+            {ok, State};
         [] ->
             ?INFO("Updating package index...~n", []),
             Url = url(State),