Set unicode option for starndard_io at entry point

src/rebar3.erl

@@ -116,6 +116,7 @@ run(RawArgs) ->
 -spec run_aux(rebar_state:t(), [string()]) ->
     {ok, rebar_state:t()} | {error, term()}.
 run_aux(State, RawArgs) ->
+    io:setopts([{encoding, unicode}]),
     %% Profile override; can only support one profile
     State1 = case os:getenv("REBAR_PROFILE") of
                  false ->

src/rebar_prv_deps_tree.erl

@@ -52,14 +52,12 @@ print_deps_tree(SrcDeps, Verbose, State) ->
     ProjectAppNames = [{rebar_app_info:name(App)
                        ,rebar_utils:vcs_vsn(rebar_app_info:original_vsn(App), rebar_app_info:dir(App), Resources)
                        ,project} || App <- rebar_state:project_apps(State)],
-    io:setopts([{encoding, unicode}]),
     case dict:find(root, D) of
         {ok, Children} ->
             print_children("", lists:keysort(1, Children++ProjectAppNames), D, Verbose);
         error ->
             print_children("", lists:keysort(1, ProjectAppNames), D, Verbose)
-    end,
-    io:setopts([{encoding, latin1}]).
+    end.
 
 print_children(_, [], _, _) ->
     ok;