Add cancel button

views/build.ejs

@@ -18,6 +18,11 @@
             <label>Dependencies</label> <span><%= build.dependencies %></span>
             <label>Start time</label> <span class="to-local-time"><%= build.startTime %></span>
         </div>
+        <% if (!ended) { %>
+        <div>
+            <a href="/build/<%= build.id %>/cancel" class="button">Cancel build</a>
+        </div>
+        <% } %>
         <p><a href="/build/<%= build.id %>/logs">Full logs</a></p>
         <div class="logs" id="logs">
             <% (log || []).forEach(line => { %>