add GET search alias, put last query qery in input field

src/GitList/Controller/CommitController.php

@@ -12,6 +12,15 @@ class CommitController implements ControllerProviderInterface
     {
         $route = $app['controllers_factory'];
 
+        $route->get('{repo}/commits/search', function (Request $request, $repo) use ($app) {
+            $subRequest = Request::create(
+                '/' . $repo . '/commits/master/search',
+                'POST',
+                array('query' => $request->get('query'))
+            );
+            return $app->handle($subRequest, \Symfony\Component\HttpKernel\HttpKernelInterface::SUB_REQUEST);
+        })->assert('repo', $app['util.routing']->getRepositoryRegex());
+
         $route->get('{repo}/commits/{commitishPath}', function ($repo, $commitishPath) use ($app) {
             $repository = $app['git']->getRepository($app['git.repos'], $repo);
 

src/GitList/Git/Repository.php

@@ -241,6 +241,7 @@ class Repository extends BaseRepository
     public function searchCommitLog($query)
     {
         $query = escapeshellarg($query);
+        $query = strtr($query, array('[' => '\\[', ']' => '\\]'));
         $command =
               "log --grep={$query} --pretty=format:\"<item><hash>%H</hash>"
             . "<short_hash>%h</short_hash><tree>%T</tree><parent>%P</parent>"

views/layout_page.twig

@@ -8,11 +8,11 @@
             <div class="span12">
                 {% if page in ['commits', 'searchcommits'] %}
                 <form class="form-search pull-right" action="{{ app.request.basepath }}/{{repo}}/commits/{{branch}}/search" method="POST">
-                    <input type="text" name="query" class="input-medium search-query" placeholder="Search commits...">
+                    <input type="text" name="query" class="input-medium search-query" placeholder="Search commits..." value="{{ query }}">
                 </form>
                 {% else %}
                 <form class="form-search pull-right" action="{{ app.request.basepath }}/{{repo}}/tree/{{branch}}/search" method="POST">
-                    <input type="text" name="query" class="input-medium search-query" placeholder="Search tree...">
+                    <input type="text" name="query" class="input-medium search-query" placeholder="Search tree..." value="{{ query }}">
                 </form>
                 {% endif %}