Replace \n to <br>

app/assets/javascripts/ci/build.coffee

@@ -33,8 +33,10 @@ class CiBuild
             url: build_url + "/trace.json?state=" + encodeURIComponent(@state)
             dataType: "json"
             success: (log) =>
-              if last_state is @state and log.status is "running"
-                @state = if log.state then log.state else ""
+              return unless last_state is @state
+
+              if log.state and log.status is "running"
+                @state = log.state
                 if log.append
                   $('.fa-refresh').before log.html
                 else

lib/ci/ansi2html.rb

@@ -90,7 +90,7 @@ module Ci
       def convert(raw, new_state)
         reset_state
-        restore_state(raw, new_state) if new_state
+        restore_state(raw, new_state) if new_state.present?
         start = @offset
         ansi = raw[@offset..-1]
@@ -105,6 +105,8 @@ module Ci
             break
           elsif s.scan(/</)
             @out << '&lt;'
+          elsif s.scan(/\n/)
+            @out << '<br>'
           else
             @out << s.scan(/./m)
           end

spec/lib/ci/ansi2html_spec.rb

@@ -175,5 +175,14 @@ describe Ci::Ansi2html, lib: true do
       it_behaves_like 'stateable converter'
     end
+
+    context 'with new line' do
+      let(:pre_text) { "Hello\r" }
+      let(:pre_html) { "Hello\r" }
+      let(:text) { "\nWorld" }
+      let(:html) { "<br>World" }
+
+      it_behaves_like 'stateable converter'
+    end
   end
 end