Fix markdown lint errors output #678

lib/overcommit/hook/pre_commit/mdl.rb

@@ -19,9 +19,9 @@ def run
       json_messages.map do |message|
         Overcommit::Hook::Message.new(
           :error,
-          message[:filename],
-          message[:line],
-          message[:description]
+          message['filename'],
+          message['line'],
+          "#{message['filename']}:#{message['line']} #{message['rule']} #{message['description']}"
         )
       end
     end

spec/overcommit/hook/pre_commit/mdl_spec.rb

@@ -25,6 +25,7 @@
 
   context 'when mdl exits unsuccessfully' do
     let(:success) { false }
+    let(:message) { subject.run.last }
 
     context 'and it reports an error' do
       let(:stdout) do
@@ -34,13 +35,17 @@
       let(:stderr) { '' }
 
       it { should fail_hook }
+      it { expect(message.file).to eq 'file1.md' }
+      it { expect(message.line).to eq 1 }
+      it { expect(message.content).to eq 'file1.md:1 MD013 Line length' }
     end
 
     context 'when there is an error running mdl' do
       let(:stdout) { '' }
       let(:stderr) { 'Some runtime error' }
 
       it { should fail_hook }
+      it { expect(message).to eq 'Some runtime error' }
     end
   end
 end