Revert "Do not expand prepend and append paths"

This reverts commit 20d96a0d77.

lib/elixir/lib/kernel/cli.ex

@@ -94,12 +94,12 @@ defmodule Kernel.CLI do
   end
 
   defp process_shared(['-pa',h|t], config) do
-    Code.prepend_path h
+    Enum.each File.wildcard(File.expand_path(h)), Code.prepend_path(&1)
     process_shared t, config
   end
 
   defp process_shared(['-pz',h|t], config) do
-    Code.append_path(h)
+    Enum.each File.wildcard(File.expand_path(h)), Code.append_path(&1)
     process_shared t, config
   end
 

lib/elixir/test/elixir/kernel/cli_test.exs

@@ -12,6 +12,31 @@ defmodule Kernel.CLI.InitTest do
   end
 end
 
+defmodule Kernel.CLI.OptionParsingTest do
+  use ExUnit.Case, async: true
+  import PathHelpers
+
+  test :path do
+    root = fixture_path("../../..") /> to_char_list
+    list = elixir('-e "IO.inspect Erlang.code.get_path" -pa "#{root}/*" -pz "#{root}/lib/*"')
+    { path, _ } = Code.eval list, []
+
+    # pa
+    assert File.expand_path('ebin', root) in path
+    assert File.expand_path('lib', root) in path
+    assert File.expand_path('src', root) in path
+
+    # pz
+    assert File.expand_path('lib/list', root) in path
+  end
+
+  test :require do
+    options = ['-r', fixture_path('../../../lib/list/*') /> to_char_list, '-r', '/never/gonna/*/up']
+    { config, _argv } = Kernel.CLI.process_options(options, Kernel.CLI.Config.new)
+    assert {:require, fixture_path "../../../lib/list/chars.ex"} in config.commands
+  end
+end
+
 defmodule Kernel.CLI.AtExitTest do
   use ExUnit.Case, async: true
   import PathHelpers