move edit to separate controller. This fixes #3265

app/views/tree/_blob_actions.html.haml

@@ -1,7 +1,7 @@
 .btn-group.tree-btn-group
   -# only show edit link for text files
   - if @tree.text?
-    = link_to "edit", edit_project_tree_path(@project, @id), class: "btn btn-tiny", disabled: !allowed_tree_edit?
+    = link_to "edit", project_edit_tree_path(@project, @id), class: "btn btn-tiny", disabled: !allowed_tree_edit?
   = link_to "raw", project_blob_path(@project, @id), class: "btn btn-tiny", target: "_blank"
   -# only show normal/blame view links for text files
   - if @tree.text?

app/views/tree/edit.html.haml

@@ -1,44 +0,0 @@
-.file-editor
-  = form_tag(project_tree_path(@project, @id), method: :put, class: "form-horizontal") do
-    .file_holder
-      .file_title
-        %i.icon-file
-        %span.file_name
-          = @tree.path
-          %small
-            on
-            %strong= @ref
-        %span.options
-          .btn-group.tree-btn-group
-            = link_to "Cancel", project_tree_path(@project, @id), class: "btn btn-tiny btn-cancel", confirm: "Are you sure?"
-      .file_content.code
-        %pre#editor= @tree.data
-
-    .control-group.commit_message-group
-      = label_tag 'commit_message', class: "control-label" do
-        Commit message
-      .controls
-        = text_area_tag 'commit_message', '', placeholder: "Update #{@tree.name}", required: true, rows: 3
-    .form-actions
-      = hidden_field_tag 'last_commit', @last_commit
-      = hidden_field_tag 'content', '', id: :file_content
-      .commit-button-annotation
-        = button_tag "Commit", class: 'btn commit-btn js-commit-button'
-        .message
-          to branch
-          %strong= @ref
-      = link_to "Cancel", project_tree_path(@project, @id), class: "btn btn-cancel", confirm: "Are you sure?"
-
-:javascript
-  var ace_mode = "#{@tree.language.try(:ace_mode)}";
-  var editor = ace.edit("editor");
-  if (ace_mode) {
-    editor.getSession().setMode('ace/mode/' + ace_mode);
-  }
-
-  disableButtonIfEmptyField("#commit_message", ".js-commit-button");
-
-  $(".js-commit-button").click(function(){
-    $("#file_content").val(editor.getValue());
-    $(".file-editor form").submit();
-  });