Add UI for downloading various archive formats.

Change the “Download” button to a split button with options for zip and
tar.gz.
Added download option to tree view.

app/assets/stylesheets/generic/buttons.scss

@@ -143,16 +143,27 @@
     line-height: 16px;
     margin: 2px;
   }
+}
+
+.btn-block {
+  width: 100%;
+  margin: 0;
+  margin-bottom: 15px;
+  &.btn {
+    padding: 6px 0;
+  }
+}
 
+.btn,
+.btn-group {
   &.grouped {
     margin-right: 7px;
     float: left;
-  }
-
-  &.btn-block {
-    width: 100%;
-    margin: 0;
-    padding: 6px 0;
-    margin-bottom: 15px;
+    &:last-child {
+      margin-right: 0px;
+    }
   }
 }
+
+.btn-group-small > .btn { @extend .btn.btn-small; }
+.btn-group-tiny > .btn { @extend .btn.btn-tiny; }

app/assets/stylesheets/sections/projects.scss

@@ -228,11 +228,26 @@ ul.nav.nav-projects-tabs {
 .project-side {
   .btn-block {
     background-image: none;
-    background-color: #F1f1f1;
-    border-color: #EEE;
-    &:hover {
-      background-color: #eee;
-      border-color: #DDD;
+    .btn,
+    &.btn,
+    &.btn-group ul.dropdown-menu {
+      background-color: #F1f1f1;
+      border-color: #EEE;
+      &:hover {
+        background-color: #eee;
+        border-color: #DDD;
+      }
+    }
+    &.btn-group-justified {
+        .btn {
+            width: 100%;
+        }
+        .dropdown-toggle {
+            width: 26px;
+        }
+    }
+    ul {
+        width: 100%;
     }
   }
   .project-fork-icon {

app/views/projects/branches/_branch.html.haml

@@ -10,9 +10,7 @@
           %i.icon-lock
     .pull-right
       - if can?(current_user, :download_code, @project)
-        = link_to archive_project_repository_path(@project, ref: branch.name), class: 'btn grouped btn-small' do
-          %i.icon-download-alt
-          Download
+        = render 'projects/repositories/download_archive', ref: branch.name, btn_class: 'grouped btn-group-small'
       = link_to project_compare_index_path(@project, from: branch.name, to: branch.name), class: 'btn grouped btn-small', title: "Compare" do
         %i.icon-copy
         Compare

app/views/projects/repositories/_download_archive.html.haml

+- ref = ref || nil
+- btn_class = btn_class || ''
+- split_button = split_button || false 
+- if split_button == true
+  %span.btn-group{class: btn_class}
+    = link_to archive_project_repository_path(@project, ref: ref, format: 'zip'), class: 'btn' do
+      %i.icon-download-alt
+      %span Download zip
+    %a.btn.dropdown-toggle{ 'data-toggle' => 'dropdown' }
+      %span.caret
+      %span.sr-only
+        Select Archive Format
+    %ul.dropdown-menu{ role: 'menu' }
+      %li
+        = link_to archive_project_repository_path(@project, ref: ref, format: 'zip') do
+          %i.icon-download-alt
+          %span Download zip
+      %li
+        = link_to archive_project_repository_path(@project, ref: ref, format: 'tar.gz') do
+          %i.icon-download-alt
+          %span Download tar.gz
+      %li
+        = link_to archive_project_repository_path(@project, ref: ref, format: 'tar.bz2') do
+          %i.icon-download-alt
+          %span Download tar.bz2
+      %li
+        = link_to archive_project_repository_path(@project, ref: ref, format: 'tar') do
+          %i.icon-download-alt
+          %span Download tar
+- else
+  %span.btn-group{class: btn_class}
+    = link_to archive_project_repository_path(@project, ref: ref, format: 'zip'), class: 'btn' do
+      %i.icon-download-alt
+      %span zip
+    = link_to archive_project_repository_path(@project, ref: ref, format: 'tar.gz'), class: 'btn' do
+      %i.icon-download-alt
+      %span tar.gz
\ No newline at end of file

app/views/projects/show.html.haml

@@ -34,11 +34,10 @@
               Fork repository
 
         - if can? current_user, :download_code, @project
-          = link_to archive_project_repository_path(@project), class: "btn btn-block" do
-            %i.icon-download-alt
-            %span Download
-          = link_to project_compare_index_path(@project, from: @repository.root_ref, to: @ref || @repository.root_ref), class: 'btn btn-block' do
-            Compare code
+          = render 'projects/repositories/download_archive', btn_class: 'btn-block btn-group-justified', split_button: true
+
+        = link_to project_compare_index_path(@project, from: @repository.root_ref, to: @ref || @repository.root_ref), class: 'btn btn-block' do
+          Compare code
 
         - if @repository.readme
           - readme = @repository.readme

app/views/projects/tags/index.html.haml

@@ -32,11 +32,9 @@
 
           %span.pull-right
             - if can? current_user, :download_code, @project
-              = link_to archive_project_repository_path(@project, ref: tag.name), class: 'btn grouped btn-small' do
-                %i.icon-download-alt
-                Download
+              = render 'projects/repositories/download_archive', ref: tag.name, btn_class: 'grouped btn-group-small'
             - if can?(current_user, :admin_project, @project)
-              = link_to project_tag_path(@project, tag.name), class: 'btn btn-small remove-row', method: :delete, data: { confirm: 'Removed tag cannot be restored. Are you sure?'}, remote: true do
+              = link_to project_tag_path(@project, tag.name), class: 'btn btn-small remove-row grouped', method: :delete, data: { confirm: 'Removed tag cannot be restored. Are you sure?'}, remote: true do
                 %i.icon-trash
 
   = paginate @tags, theme: 'gitlab'

app/views/projects/tree/show.html.haml

 %div.tree-ref-holder
   = render 'shared/ref_switcher', destination: 'tree', path: @path
+- if can? current_user, :download_code, @project
+  .tree-ref-holder.pull-right
+    = render 'projects/repositories/download_archive', ref: @ref, btn_class: 'btn-group-small', split_button: true
 %div#tree-holder.tree-holder
   = render "tree", tree: @tree