Merge pull request #315 from ferd/fix-ns-help

Fix ns help

14 files changed, 30 insertions, 26 deletions

diff --git a/src/rebar_prv_as.erl b/src/rebar_prv_as.erl
index 6e3825f..64ad951 100644
--- a/src/rebar_prv_as.erl
+++ b/src/rebar_prv_as.erl
@@ -26,7 +26,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 as <profile1>,<profile2>,... <task1>, <task2>, ..."},
                                                                {short_desc, "Higher order provider for running multiple tasks in a sequence as a certain profiles."},
-                                                               {desc, ""},
+                                                               {desc, "Higher order provider for running multiple tasks in a sequence as a certain profiles."},
                                                                {opts, [{profile, undefined, undefined, string, "Profiles to run as."}]}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_clean.erl b/src/rebar_prv_clean.erl
index 0da286b..a0793c1 100644
--- a/src/rebar_prv_clean.erl
+++ b/src/rebar_prv_clean.erl
@@ -26,7 +26,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 clean"},
                                                                {short_desc, "Remove compiled beam files from apps."},
-                                                               {desc, ""},
+                                                               {desc, "Remove compiled beam files from apps."},
                                                                {opts, [{all, $a, "all", undefined, "Clean all apps include deps"}]}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_common_test.erl b/src/rebar_prv_common_test.erl
index 97f0637..de77257 100644
--- a/src/rebar_prv_common_test.erl
+++ b/src/rebar_prv_common_test.erl
@@ -28,7 +28,7 @@ init(State) ->
                                  {bare, false},
                                  {example, "rebar3 ct"},
                                  {short_desc, "Run Common Tests."},
-                                 {desc, ""},
+                                 {desc, "Run Common Tests."},
                                  {opts, ct_opts(State)},
                                  {profiles, [test]}]),
     State1 = rebar_state:add_provider(State, Provider),
@@ -537,4 +537,4 @@ parse_term(String) ->
             Terms;
         Term ->
             Term
-    end.
\ No newline at end of file
+    end.
diff --git a/src/rebar_prv_compile.erl b/src/rebar_prv_compile.erl
index 0b70f22..5053e57 100644
--- a/src/rebar_prv_compile.erl
+++ b/src/rebar_prv_compile.erl
@@ -25,7 +25,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 compile"},
                                                                {short_desc, "Compile apps .app.src and .erl files."},
-                                                               {desc, ""},
+                                                               {desc, "Compile apps .app.src and .erl files."},
                                                                {opts, []}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_cover.erl b/src/rebar_prv_cover.erl
index 0ee6742..83fe012 100644
--- a/src/rebar_prv_cover.erl
+++ b/src/rebar_prv_cover.erl
@@ -29,7 +29,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 cover"},
                                                                {short_desc, "Perform coverage analysis."},
-                                                               {desc, ""},
+                                                               {desc, "Perform coverage analysis."},
                                                                {opts, cover_opts(State)},
                                                                {profiles, [test]}])),
     {ok, State1}.
diff --git a/src/rebar_prv_do.erl b/src/rebar_prv_do.erl
index fd1767a..aee3a27 100644
--- a/src/rebar_prv_do.erl
+++ b/src/rebar_prv_do.erl
@@ -27,7 +27,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 do <task1>, <task2>, ..."},
                                                                {short_desc, "Higher order provider for running multiple tasks in a sequence."},
-                                                               {desc, ""},
+                                                               {desc, "Higher order provider for running multiple tasks in a sequence."},
                                                                {opts, []}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_edoc.erl b/src/rebar_prv_edoc.erl
index eb57dcd..c9b89f0 100644
--- a/src/rebar_prv_edoc.erl
+++ b/src/rebar_prv_edoc.erl
@@ -23,7 +23,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 edoc"},
                                                                {short_desc, "Generate documentation using edoc."},
-                                                               {desc, ""},
+                                                               {desc, "Generate documentation using edoc."},
                                                                {opts, []}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_erlydtl_compiler.erl b/src/rebar_prv_erlydtl_compiler.erl
index 79244ee..65f0094 100644
--- a/src/rebar_prv_erlydtl_compiler.erl
+++ b/src/rebar_prv_erlydtl_compiler.erl
@@ -119,7 +119,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 erlydtl compile"},
                                                                {short_desc, "Compile erlydtl templates."},
-                                                               {desc, ""},
+                                                               {desc, "Compile erlydtl templates."},
                                                                {opts, []}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_eunit.erl b/src/rebar_prv_eunit.erl
index 6872c99..371d205 100644
--- a/src/rebar_prv_eunit.erl
+++ b/src/rebar_prv_eunit.erl
@@ -27,7 +27,7 @@ init(State) ->
                                  {bare, false},
                                  {example, "rebar3 eunit"},
                                  {short_desc, "Run EUnit Tests."},
-                                 {desc, ""},
+                                 {desc, "Run EUnit Tests."},
                                  {opts, eunit_opts(State)},
                                  {profiles, [test]}]),
     State1 = rebar_state:add_provider(State, Provider),
diff --git a/src/rebar_prv_help.erl b/src/rebar_prv_help.erl
index b450023..be5717f 100644
--- a/src/rebar_prv_help.erl
+++ b/src/rebar_prv_help.erl
@@ -34,20 +34,14 @@ init(State) ->
 
 -spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
 do(State) ->
-    {Args, _} = rebar_state:command_parsed_args(State),
-    case proplists:get_value(help_task, Args, undefined) of
-        undefined ->
+    case rebar_state:command_args(State) of
+        [] ->
             help(State),
             {ok, State};
-        Name ->
-            Providers = rebar_state:providers(State),
-            case providers:get_provider(list_to_atom(Name), Providers) of
-                not_found ->
-                    {error, io_lib:format("Unknown task ~s", [Name])};
-                Provider ->
-                    providers:help(Provider),
-                    {ok, State}
-            end
+        [Name] -> % default namespace
+            task_help(default, list_to_atom(Name), State);
+        [Namespace, Name] ->
+            task_help(list_to_atom(Namespace), list_to_atom(Name), State)
     end.
 
 -spec format_error(any()) -> iolist().
@@ -66,3 +60,13 @@ help(State) ->
     providers:help(rebar_state:providers(State)),
 
     ?CONSOLE("~nRun 'rebar3 help <TASK>' for details.~n~n", []).
+
+task_help(Namespace, Name, State) ->
+    Providers = rebar_state:providers(State),
+    case providers:get_provider(Name, Providers, Namespace) of
+        not_found ->
+            {error, io_lib:format("Unknown task ~p", [Name])};
+        Provider ->
+            providers:help(Provider),
+            {ok, State}
+    end.
diff --git a/src/rebar_prv_release.erl b/src/rebar_prv_release.erl
index db012d5..c9a9c0b 100644
--- a/src/rebar_prv_release.erl
+++ b/src/rebar_prv_release.erl
@@ -26,7 +26,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 release"},
                                                                {short_desc, "Build release of project."},
-                                                               {desc, ""},
+                                                               {desc, "Build release of project."},
                                                                {opts, relx:opt_spec_list()}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_tar.erl b/src/rebar_prv_tar.erl
index b5defbf..019036e 100644
--- a/src/rebar_prv_tar.erl
+++ b/src/rebar_prv_tar.erl
@@ -26,7 +26,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 tar"},
                                                                {short_desc, "Tar archive of release built of project."},
-                                                               {desc, ""},
+                                                               {desc, "Tar archive of release built of project."},
                                                                {opts, relx:opt_spec_list()}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_update.erl b/src/rebar_prv_update.erl
index 170c591..be5cafd 100644
--- a/src/rebar_prv_update.erl
+++ b/src/rebar_prv_update.erl
@@ -27,7 +27,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 update"},
                                                                {short_desc, "Update package index."},
-                                                               {desc, ""},
+                                                               {desc, "Update package index."},
                                                                {opts, []}])),
     {ok, State1}.
 
diff --git a/src/rebar_prv_version.erl b/src/rebar_prv_version.erl
index b2382db..5edcc85 100644
--- a/src/rebar_prv_version.erl
+++ b/src/rebar_prv_version.erl
@@ -26,7 +26,7 @@ init(State) ->
                                                                {deps, ?DEPS},
                                                                {example, "rebar3 version"},
                                                                {short_desc, "Print version for rebar and current Erlang."},
-                                                               {desc, ""},
+                                                               {desc, "Print version for rebar and current Erlang."},
                                                                {opts, []}])),
 
     {ok, State1}.