move edit to separate controller. This fixes #3265

app/controllers/edit_tree_controller.rb

+# Controller for edit a repository's file
+class EditTreeController < ProjectResourceController
+  include ExtractsPath
+
+  # Authorize
+  before_filter :authorize_read_project!
+  before_filter :authorize_code_access!
+  before_filter :require_non_empty_project
+
+  before_filter :edit_requirements, only: [:edit, :update]
+
+  def show
+    @last_commit = @project.repository.last_commit_for(@ref, @path).sha
+  end
+
+  def update
+    edit_file_action = Gitlab::Satellite::EditFileAction.new(current_user, @project, @ref, @path)
+    updated_successfully = edit_file_action.commit!(
+      params[:content],
+      params[:commit_message],
+      params[:last_commit]
+    )
+
+    if updated_successfully
+      redirect_to project_tree_path(@project, @id), notice: "Your changes have been successfully commited"
+    else
+      flash[:notice] = "Your changes could not be commited, because the file has been changed"
+      render :edit
+    end
+  end
+
+  private
+
+  def edit_requirements
+    unless @tree.is_blob? && @tree.text?
+      redirect_to project_tree_path(@project, @id), notice: "You can only edit text files"
+    end
+
+    allowed = if project.protected_branch? @ref
+                can?(current_user, :push_code_to_protected_branches, project)
+              else
+                can?(current_user, :push_code, project)
+              end
+
+    return access_denied! unless allowed
+  end
+end

app/controllers/tree_controller.rb

@@ -7,8 +7,6 @@ class TreeController < ProjectResourceController
   before_filter :authorize_code_access!
   before_filter :require_non_empty_project
-  before_filter :edit_requirements, only: [:edit, :update]
-
   def show
     @hex_path  = Digest::SHA1.hexdigest(@path)
     @logs_path = logs_file_project_ref_path(@project, @ref, @path)
@@ -19,40 +17,4 @@ class TreeController < ProjectResourceController
       format.js { no_cache_headers }
     end
   end
-
-  def edit
-    @last_commit = @project.repository.last_commit_for(@ref, @path).sha
-  end
-
-  def update
-    edit_file_action = Gitlab::Satellite::EditFileAction.new(current_user, @project, @ref, @path)
-    updated_successfully = edit_file_action.commit!(
-      params[:content],
-      params[:commit_message],
-      params[:last_commit]
-    )
-
-    if updated_successfully
-      redirect_to project_tree_path(@project, @id), notice: "Your changes have been successfully commited"
-    else
-      flash[:notice] = "Your changes could not be commited, because the file has been changed"
-      render :edit
-    end
-  end
-
-  private
-
-  def edit_requirements
-    unless @tree.is_blob? && @tree.text?
-      redirect_to project_tree_path(@project, @id), notice: "You can only edit text files"
-    end
-
-    allowed = if project.protected_branch? @ref
-                can?(current_user, :push_code_to_protected_branches, project)
-              else
-                can?(current_user, :push_code, project)
-              end
-
-    return access_denied! unless allowed
-  end
 end

app/views/tree/edit.html.haml → app/views/edit_tree/show.html.haml

 .file-editor
-  = form_tag(project_tree_path(@project, @id), method: :put, class: "form-horizontal") do
+  = form_tag(project_edit_tree_path(@project, @id), method: :put, class: "form-horizontal") do
     .file_holder
       .file_title
         %i.icon-file

app/views/tree/_blob_actions.html.haml

 .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?

config/routes.rb

@@ -168,7 +168,8 @@ Gitlab::Application.routes.draw do
   #
   resources :projects, constraints: { id: /(?:[a-zA-Z.0-9_\-]+\/)?[a-zA-Z.0-9_\-]+/ }, except: [:new, :create, :index], path: "/" do
     resources :blob,    only: [:show], constraints: {id: /.+/}
-    resources :tree,    only: [:show, :edit, :update], constraints: {id: /.+/}
+    resources :tree,    only: [:show], constraints: {id: /.+/, format: /(html|js)/ }
+    resources :edit_tree,    only: [:show, :update], constraints: {id: /.+/}, path: 'edit'
     resources :commit,  only: [:show], constraints: {id: /[[:alnum:]]{6,40}/}
     resources :commits, only: [:show], constraints: {id: /(?:[^.]|\.(?!atom$))+/, format: /atom/}
     resources :compare, only: [:index, :create]