M HISTORY.md → HISTORY.md

@@ -1,3 +1,7 @@
+## 0.1.4 (2009-11-17)
+
+* Bugfix: Missing commands return the input (instead of nothing)
+
 ## 0.1.3 (2009-11-02)
 
 * Strip the INDEX comments from POD

M lib/github/markup.rb → lib/github/markup.rb

@@ -26,6 +26,7 @@ end
 
     def command(command, regexp, &block)
       command = command.to_s
+
       if !File.exists?(command) && !command.include?('/')
         command = File.dirname(__FILE__) + '/commands/' + command.to_s
       end
@@ -54,6 +55,8 @@ nil
     end
 
     def execute(command, target)
+      return target if !system("which #{command} > /dev/null")
+
       out = ''
       Open3.popen3(command) do |stdin, stdout, _|
         stdin.puts target

M test/markup_test.rb → test/markup_test.rb

@@ -26,4 +26,12 @@ assert_equal false, GitHub::Markup.can_render?('README.html')
     assert_equal true, GitHub::Markup.can_render?('README.markdown')
     assert_equal false, GitHub::Markup.can_render?('README.cmd')
   end
+
+  def test_fails_gracefully_on_missing_commands
+    GitHub::Markup.command(:i_made_it_up, /mde/)
+    text = 'hi there'
+    assert_equal true, GitHub::Markup.can_render?('README.mde')
+    actual = GitHub::Markup.render('README.mde', text)
+    assert_equal text, actual
+  end
 end