Allow custom info to be added to Help page

Fixes #2536
Signed-off-by: NJeroen van Baarsen <jeroenvanbaarsen@gmail.com>

CHANGELOG

@@ -53,6 +53,7 @@ v 8.0.0 (unreleased)
   - Add FogBugz project import (Jared Szechy)
   - Sort users autocomplete lists by user (Allister Antosik)
   - Webhook for issue now contains repository field (Jungkook Park)
+  - Add ability to add custom text to the help page (Jeroen van Baarsen)
 
 v 7.14.3
   - No changes

app/controllers/admin/application_settings_controller.rb

@@ -46,6 +46,7 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
       :gravatar_enabled,
       :twitter_sharing_enabled,
       :sign_in_text,
+      :help_page_text,
       :home_page_url,
       :after_sign_out_path,
       :max_attachment_size,

app/views/admin/application_settings/_form.html.haml

@@ -118,6 +118,11 @@
       .col-sm-10
         = f.text_area :sign_in_text, class: 'form-control', rows: 4
         .help-block Markdown enabled
+    .form-group
+      = f.label :help_page_text, class: 'control-label col-sm-2'
+      .col-sm-10
+        = f.text_area :help_page_text, class: 'form-control', rows: 4
+        .help-block Markdown enabled
 
   .form-actions
     = f.submit 'Save', class: 'btn btn-primary'

app/views/help/index.html.haml

@@ -17,6 +17,9 @@
     Used by more than 100,000 organizations, GitLab is the most popular solution to manage git repositories on-premises.
     %br
     Read more about GitLab at #{link_to promo_host, promo_url, target: '_blank'}.
+    - if current_application_settings.help_page_text.present?
+      %hr
+      = markdown(current_application_settings.help_page_text)
 
 %hr
 

db/migrate/20150916114643_add_help_page_text_to_application_settings.rb

+class AddHelpPageTextToApplicationSettings < ActiveRecord::Migration
+  def change
+    add_column :application_settings, :help_page_text, :text
+  end
+end

db/schema.rb

@@ -45,6 +45,7 @@ ActiveRecord::Schema.define(version: 20150916145038) do
     t.string   "after_sign_out_path"
     t.integer  "session_expire_delay",         default: 10080, null: false
     t.text     "import_sources"
+    t.text     "help_page_text"
   end
 
   create_table "audit_events", force: true do |t|

features/steps/admin/settings.rb

@@ -7,6 +7,7 @@ class Spinach::Features::AdminSettings < Spinach::FeatureSteps
   step 'I modify settings and save form' do
     uncheck 'Gravatar enabled'
     fill_in 'Home page URL', with: 'https://about.gitlab.com/'
+    fill_in 'Help page text', with: 'Example text'
     click_button 'Save'
   end