options.rb: include root for out-place build

* lib/rdoc/options.rb (RDoc#finish): include root path in include
  paths, to work in another directory than the source directory.
  [ruby-core:56282] [Bug #8712]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42300 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 21 insertions, 0 deletions

diff --git a/test/rdoc/test_rdoc_options.rb b/test/rdoc/test_rdoc_options.rb
index 5d7135c795..e72489d307 100644
--- a/test/rdoc/test_rdoc_options.rb
+++ b/test/rdoc/test_rdoc_options.rb
@@ -479,6 +479,7 @@ rdoc_include:
     assert_empty err
 
     assert_equal Pathname(Dir.tmpdir), @options.root
+    assert_includes @options.rdoc_include, @options.root.to_path
   end
 
   def test_parse_template
diff --git a/test/rdoc/test_rdoc_rdoc.rb b/test/rdoc/test_rdoc_rdoc.rb
index 28b6a2bb4d..9a13569f01 100644
--- a/test/rdoc/test_rdoc_rdoc.rb
+++ b/test/rdoc/test_rdoc_rdoc.rb
@@ -162,6 +162,26 @@ class TestRDocRDoc < RDoc::TestCase
     end
   end
 
+  def test_parse_file_include_root
+    @rdoc.store = RDoc::Store.new
+
+    top_level = nil
+    temp_dir do |dir|
+      @rdoc.options.parse %W[--root #{File.dirname(__FILE__)}]
+
+      open 'include.txt', 'w' do |io|
+        io.puts ':include: test.txt'
+      end
+
+      out, err = capture_io do
+        top_level = @rdoc.parse_file 'include.txt'
+      end
+      assert_empty out
+      assert_empty err
+    end
+    assert_equal "test file", top_level.comment.text
+  end
+
   def test_parse_file_page_dir
     @rdoc.store = RDoc::Store.new