[ruby/rdoc] Add rdoc:coverage default task

https://github.com/ruby/rdoc/commit/157fbaf575

lib/rdoc/task.rb

@@ -50,6 +50,9 @@ require 'rake/tasklib'
 # [rerdoc]
 #   Rebuild the rdoc files from scratch, even if they are not out of date.
 #
+# [rdoc:coverage]
+#   Print RDoc coverage report for all rdoc files.
+#
 # Simple Example:
 #
 #   require 'rdoc/task'
@@ -90,8 +93,8 @@ require 'rake/tasklib'
 #   RDoc::Task.new(:rdoc => "rdoc", :clobber_rdoc => "rdoc:clean",
 #                  :rerdoc => "rdoc:force")
 #
-# This will create the tasks <tt>:rdoc</tt>, <tt>:rdoc:clean</tt> and
+# This will create the tasks <tt>:rdoc</tt>, <tt>:rdoc:clean</tt>,
-# <tt>:rdoc:force</tt>.
+# <tt>:rdoc:force</tt>, and <tt>:rdoc:coverage</tt>.
 
 class RDoc::Task < Rake::TaskLib
 
@@ -248,6 +251,16 @@ class RDoc::Task < Rake::TaskLib
       RDoc::RDoc.new.document args
     end
 
+    namespace rdoc_task_name do
+      desc coverage_task_description
+      task coverage_task_name do
+        @before_running_rdoc.call if @before_running_rdoc
+        opts = option_list << "-C"
+        args = opts + @rdoc_files
+
+        $stderr.puts "rdoc #{args.join ' '}" if Rake.application.options.trace
+      end
+    end
     self
   end
 
@@ -288,6 +301,13 @@ class RDoc::Task < Rake::TaskLib
     "Rebuild RDoc HTML files"
   end
 
+  ##
+  # Task description for the coverage task or its renamed description
+
+  def coverage_task_description
+    "Print RDoc coverage report"
+  end
+
   private
 
   def rdoc_target
@@ -315,6 +335,10 @@ class RDoc::Task < Rake::TaskLib
     end
   end
 
+  def coverage_task_name
+    "coverage"
+  end
+
 end
 
 # :stopdoc:

test/rdoc/test_rdoc_task.rb

@@ -50,6 +50,7 @@ class TestRDocTask < RDoc::TestCase
     assert Rake::Task[:rdoc]
     assert Rake::Task[:clobber_rdoc]
     assert Rake::Task[:rerdoc]
+    assert Rake::Task[:"rdoc:coverage"]
     assert_equal ["html/created.rid"], Rake::Task[:rdoc].prerequisites
   end
 
@@ -58,6 +59,7 @@ class TestRDocTask < RDoc::TestCase
     assert Rake::Task[:rdoc_dev]
     assert Rake::Task[:clobber_rdoc_dev]
     assert Rake::Task[:rerdoc_dev]
+    assert Rake::Task[:"rdoc_dev:coverage"]
     assert_equal :rdoc_dev, rd.name
   end
 
@@ -110,11 +112,16 @@ class TestRDocTask < RDoc::TestCase
     assert_equal 'Rebuild RDoc HTML files', @t.rerdoc_task_description
   end
 
+  def test_coverage_task_description
+    assert_equal 'Print RDoc coverage report', @t.coverage_task_description
+  end
+
   def test_tasks_creation_with_custom_name_string
     rd = RDoc::Task.new("rdoc_dev")
     assert Rake::Task[:rdoc_dev]
     assert Rake::Task[:clobber_rdoc_dev]
     assert Rake::Task[:rerdoc_dev]
+    assert Rake::Task[:"rdoc_dev:coverage"]
     assert_equal "rdoc_dev", rd.name
   end
 
@@ -131,6 +138,7 @@ class TestRDocTask < RDoc::TestCase
     assert Rake::Task[:"rdoc"]
     assert Rake::Task[:"rdoc:clean"]
     assert Rake::Task[:"rdoc:force"]
+    assert Rake::Task[:"rdoc:coverage"]
     assert_raise(RuntimeError) { Rake::Task[:clobber_rdoc] }
     assert_equal options, rd.name
   end
@@ -140,6 +148,7 @@ class TestRDocTask < RDoc::TestCase
     assert Rake::Task[:rdoc]
     assert Rake::Task[:"rdoc:clean"]
     assert Rake::Task[:rerdoc]
+    assert Rake::Task[:"rdoc:coverage"]
   end
 
   def test_tasks_creation_with_custom_name_hash_raises_exception_if_invalid_option_given