Ensure provider hook calls don't crash because of invalid command lin…

…e arguments

Normally the CLI arguments are intended for the provider which is called
directly. When these are forwarded to other providers through hooks
things might break.

src/rebar_hooks.erl

@@ -22,9 +22,13 @@ run_all_hooks(Dir, Type, Command, Providers, State) ->
     run_hooks(Dir, Type, Command, rebar_state:opts(State), State).
 
 run_project_and_app_hooks(Dir, Type, Command, Providers, State) ->
-    ProjectApps = rebar_state:project_apps(State),
-    [rebar_hooks:run_all_hooks(Dir, Type, Command, Providers, AppInfo, State) || AppInfo <- ProjectApps],
-    run_all_hooks(Dir, Type, Command, Providers, State).
+    % The command_args which the original invocation of rebar received are most
+    % likely not applicable to the hooks which will be called. Therefore, the
+    % args are discarded to not crash provider hook invocations.
+    State1 = rebar_state:command_args(State, []),
+    ProjectApps = rebar_state:project_apps(State1),
+    [rebar_hooks:run_all_hooks(Dir, Type, Command, Providers, AppInfo, State1) || AppInfo <- ProjectApps],
+    run_all_hooks(Dir, Type, Command, Providers, State1).
 
 run_provider_hooks(Dir, Type, Command, Providers, Opts, State) ->
     case rebar_opts:get(Opts, provider_hooks, []) of