Mark escript.build and archive.build as recursive, closes #8393

Author: José Valim

lib/mix/lib/mix/tasks/archive.build.ex

@@ -2,6 +2,7 @@ defmodule Mix.Tasks.Archive.Build do
   use Mix.Task
 
   @shortdoc "Archives this project into a .ez file"
+  @recursive true
 
   @moduledoc """
   Builds an archive according to the specification of the

lib/mix/lib/mix/tasks/escript.build.ex

@@ -3,6 +3,7 @@ defmodule Mix.Tasks.Escript.Build do
   use Bitwise, only_operators: true
 
   @shortdoc "Builds an escript for the project"
+  @recursive true
 
   @moduledoc ~S"""
   Builds an escript for the project.
@@ -133,11 +134,6 @@ defmodule Mix.Tasks.Escript.Build do
 
   defp escriptize(project, language) do
     escript_opts = project[:escript] || []
-
-    if Mix.Project.umbrella?() do
-      Mix.raise("Building escripts for umbrella projects is unsupported")
-    end
-
     script_name = Mix.Local.name_for(:escript, project)
     filename = escript_opts[:path] || script_name
     main = escript_opts[:main_module]

lib/mix/test/mix/tasks/escript_test.exs

@@ -212,18 +212,6 @@ defmodule Mix.Tasks.EscriptTest do
     purge([Ok.MixProject])
   end
 
-  test "generating escript for umbrella projects fails with a nice error" do
-    message = "Building escripts for umbrella projects is unsupported"
-
-    in_fixture("umbrella_dep/deps/umbrella", fn ->
-      Mix.Project.in_project(:umbrella, ".", fn _ ->
-        assert_raise Mix.Error, message, fn ->
-          Mix.Tasks.Escript.Build.run([])
-        end
-      end)
-    end)
-  end
-
   test "generate escript with consolidated protocols" do
     Mix.Project.push(EscriptConsolidated)