Merge pull request #2991 from raphendyr/username_change_disablation

Add option to disable username changing

app/controllers/profiles_controller.rb

@@ -51,7 +51,9 @@ class ProfilesController < ApplicationController
   end
 
   def update_username
+    if @user.can_change_username?
       @user.update_attributes(username: params[:user][:username])
+    end
 
     respond_to do |format|
       format.js

app/models/user.rb

@@ -234,6 +234,10 @@ class User < ActiveRecord::Base
     keys.count == 0
   end
 
+  def can_change_username?
+    Gitlab.config.gitlab.username_changing_enabled
+  end
+
   def can_create_project?
     projects_limit > owned_projects.count
   end

app/views/profiles/account.html.haml

@@ -53,7 +53,8 @@
 
 
 
-%fieldset.update-username
+- if current_user.can_change_username?
+  %fieldset.update-username
     %legend
       Username
       %small.cred.pull-right

config/gitlab.yml.example

@@ -35,6 +35,7 @@ production: &base
     ## Project settings
     default_projects_limit: 10
     # signup_enabled: true          # default: false - Account passwords are not sent via the email if signup is enabled.
+    # username_changing_enabled: false # default: true - User can change her username/namespace
 
   ## Gravatar
   gravatar:

config/initializers/1_settings.rb

@@ -57,6 +57,7 @@ Settings.gitlab['support_email']  ||= Settings.gitlab.email_from
 Settings.gitlab['url']        ||= Settings.send(:build_gitlab_url)
 Settings.gitlab['user']       ||= 'git'
 Settings.gitlab['signup_enabled'] ||= false
+Settings.gitlab['username_changing_enabled'] = true if Settings.gitlab['username_changing_enabled'].nil?
 
 #
 # Gravatar