Add compare function between snipsContents

templates/content/compare.html.twig

@@ -0,0 +1,38 @@
+{% extends 'base/single.column.html.twig' %}
+
+{% set title = 'Snip compare ' ~ snip %}
+
+{% block body %}
+    <a href="{{ path('snip_single', {snip: snip.id}) }}" class="btn btn-primary">
+        <i class="fa fa-arrow-left"></i> Back
+    </a>
+    <br><br>
+    <table class="table table-condensed table-hover">
+        <thead>
+        <tr>
+            <th>Line</th>
+            <th>Old</th>
+            <th>New</th>
+        </tr>
+        </thead>
+        <tbody>
+        {% for line in diff %}
+            <tr>
+                <td class="table-{{ line.type == 'insert' ? 'success' : (line.type == 'delete' ? 'danger' : 'info') }}">
+                    {{ line.type }}
+                </td>
+                <td>
+                    {% if line.from %}
+                        {{ line.from }}
+                    {% endif %}
+                </td>
+                <td>
+                    {% if line.to %}
+                        {{ line.to }}
+                    {% endif %}
+                </td>
+            </tr>
+        {% endfor %}
+        </tbody>
+    </table>
+{% endblock %}