add edoc provider

README.md

@@ -33,6 +33,7 @@ limit scope.
 | ct         | Run Common Test suites |
 | do         | Higher-order provider to run multiple tasks in sequence |
 | dialyzer   | Run the Dialyzer analyzer on the project |
+| edoc       | Generate documentation using edoc |
 | eunit      | Run eunit tests |
 | help       | Print help for rebar or task |
 | new        | Create new rebar project from templates |

src/rebar.app.src

@@ -29,6 +29,7 @@
                      rebar_prv_dialyzer,
                      rebar_prv_do,
                      rebar_prv_eunit,
+                     rebar_prv_edoc,
                      rebar_prv_lock,
                      rebar_prv_install_deps,
                      rebar_prv_packages,

src/rebar_prv_edoc.erl

@@ -0,0 +1,48 @@
+-module(rebar_prv_edoc).
+
+-behaviour(provider).
+
+-export([init/1,
+         do/1,
+         format_error/1]).
+
+-include("rebar.hrl").
+
+-define(PROVIDER, edoc).
+-define(DEPS, [app_discovery]).
+
+%% ===================================================================
+%% Public API
+%% ===================================================================
+
+-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
+init(State) ->
+    State1 = rebar_state:add_provider(State, providers:create([{name, ?PROVIDER},
+                                                               {module, ?MODULE},
+                                                               {bare, false},
+                                                               {deps, ?DEPS},
+                                                               {example, "rebar edoc"},
+                                                               {short_desc, "Generate documentation using edoc."},
+                                                               {desc, ""},
+                                                               {opts, []}])),
+    {ok, State1}.
+
+-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
+do(State) ->
+    ProjectApps = rebar_state:project_apps(State),
+    EDocOpts = rebar_state:get(State, edoc_opts, []),
+    lists:foreach(fun(AppInfo) ->
+                          AppName = ec_cnv:to_list(rebar_app_info:name(AppInfo)),
+                          ?INFO("Running edoc for ~s", [AppName]),
+                          AppDir = rebar_app_info:dir(AppInfo),
+                          ok = edoc:application(list_to_atom(AppName), AppDir, EDocOpts)
+                  end, ProjectApps),
+    {ok, State}.
+
+-spec format_error(any()) -> iolist().
+format_error(Reason) ->
+    io_lib:format("~p", [Reason]).
+
+%% ===================================================================
+%% Internal functions
+%% ===================================================================