(refs #23)Add "Branch" tab to the repository viewer.

src/main/scala/app/RepositoryViewerController.scala

@@ -136,6 +136,20 @@ trait RepositoryViewerControllerBase extends ControllerBase {
     }
   })
   
+  /**
+   * Displays branches.
+   */
+  get("/:owner/:repository/branches")(referrersOnly { repository =>
+    JGitUtil.withGit(getRepositoryDir(repository.owner, repository.name)){ git =>
+      // retrieve latest update date of each branch
+      val branchInfo = repository.branchList.map { branchName =>
+        val revCommit = git.log.add(git.getRepository.resolve(branchName)).setMaxCount(1).call.iterator.next
+        (branchName, revCommit.getCommitterIdent.getWhen)
+      }
+      repo.html.branches(branchInfo, repository)
+    }
+  })
+
   /**
    * Displays tags.
    */

src/main/twirl/repo/branches.scala.html

@@ -0,0 +1,38 @@
+@(branchInfo: List[(String, java.util.Date)],
+  repository: service.RepositoryService.RepositoryInfo)(implicit context: app.Context)
+@import context._
+@import view.helpers._
+@html.main(s"${repository.owner}/${repository.name}", Some(repository)) {
+  @html.header("code", repository)
+  @tab(repository.repository.defaultBranch, repository, "branches", true)
+  <h1>Branches</h1>
+  <table class="table table-bordered">
+    <tr>
+      <th width="40%">Branch</th>
+      <th width="20%">Last update</th>
+      <th width="20%">Compare</th>
+      <th width="20%">Download</th>
+    </tr>
+    @branchInfo.map { case (branchName, latestUpdateDate) =>
+      <tr>
+        <td>
+          <a href="@url(repository)/tree/@branchName">@branchName</a>
+          @*
+          <a href="#" class="btn btn-danger btn-mini">Delete branch</a>
+          *@
+        </td>
+        <td>
+          @datetime(latestUpdateDate)
+        </td>
+        <td>
+          @if(repository.repository.defaultBranch == branchName){
+            Base branch
+          } else {
+            <a href="@url(repository)/compare/@{repository.repository.defaultBranch}...@branchName">to @{repository.repository.defaultBranch}</a>
+          }
+        </td>
+        <td><a href="@url(repository)/archive/@{branchName}.zip">ZIP</a></td>
+      </tr>
+    }
+  </table>
+}

src/main/twirl/repo/tab.scala.html

@@ -27,7 +27,8 @@
   </li>
   }
   <li@if(active=="files"   ){ class="active"}><a href="@url(repository)/tree/@id">Files</a></li>
-  <li@if(active=="commits"){ class="active"}><a href="@url(repository)/commits/@id">Commits</a></li>
+  <li@if(active=="commits" ){ class="active"}><a href="@url(repository)/commits/@id">Commits</a></li>
+  <li@if(active=="branches"){ class="active"}><a href="@url(repository)/branches">Branches@if(repository.branchList.length > 0){ <span class="badge">@repository.branchList.length</span>}</a></li>
   <li@if(active=="tags"    ){ class="active"}><a href="@url(repository)/tags">Tags@if(repository.tags.length > 0){ <span class="badge">@repository.tags.length</span>}</a></li>
   <li class="pull-right">
     <div class="input-append">