--- a/incoming.py	Sat Jun 25 22:11:38 2016 +0800
+++ b/incoming.py	Sun Jun 26 09:26:16 2016 +0800
@@ -145,6 +145,9 @@
             warnings += dw
             item.update(extra)
 
+        if state is not None:
+            item['task'] = state
+
         result.append(item)
 
     domain, user, name = parse_project_url(url)

--- a/static/main.css	Sat Jun 25 22:11:38 2016 +0800
+++ b/static/main.css	Sun Jun 26 09:26:16 2016 +0800
@@ -44,6 +44,20 @@
     padding-right: 10px;
 }
 
+.check-log a.collapser {
+    margin-left: 8px;
+    color: inherit;
+    text-decoration: underline;
+}
+
+.check-log a.collapser::before {
+    content: '[-]'
+}
+
+.check-log a.collapser.collapsed::before {
+    content: '[+]'
+}
+
 .check-log .error {
     color: #f277a1;
 }

--- a/templates/check.html	Sat Jun 25 22:11:38 2016 +0800
+++ b/templates/check.html	Sun Jun 26 09:26:16 2016 +0800
@@ -43,11 +43,29 @@
     </div>
     <pre class="check-log">{#
     #}{% for number, line in enumerate(lines, 1) %}{#
-      #}<div id="l{{ number }}"{% if 'cls' in line %} class="{{ line['cls'] }}"{% end %}>{#
+      #}<div id="l{{ number }}"{% if 'task' in line %} data-task="{{ line['task'] }}"{% end %}{% if 'cls' in line %} class="{{ line['cls'] }}"{% end %}>{#
         #}<a href="#l{{ number }}" class="lineno" data-line-number="{{ number }}"></a>{#
         #}{{ line['text'] }}{#
+        #}{% if line.get('cls') == 'task' and line.get('task') != 'cleanup' %}{#
+          #}<a class="collapser"></a>{#
+        #}{% end %}{#
       #}</div>{#
     #}{% end %}{#
   #}</pre>
+    <script>
+      (function($) {
+        $('.check-log .collapser').each(function() {
+          var $collapser = $(this);
+          var $header = $collapser.closest('div');
+          var task = $header.attr('data-task');
+          var $lines = $header.nextAll('[data-task="' + task + '"]');
+          $collapser.on('click', function() {
+            $collapser.toggleClass('collapsed');
+            var collapsed = $collapser.hasClass('collapsed');
+            $lines.toggleClass('uk-hidden', collapsed);
+          });
+        });
+      })(jQuery);
+    </script>
   </div>
 {% end %}