Merge branch 'master' into reply-by-email

82 files changed, 841 insertions, 542 deletions

diff --git a/app/assets/javascripts/merge_request_widget.js.coffee b/app/assets/javascripts/merge_request_widget.js.coffee
index 5ab91261d75..995a2f24093 100644
--- a/app/assets/javascripts/merge_request_widget.js.coffee
+++ b/app/assets/javascripts/merge_request_widget.js.coffee
@@ -19,7 +19,7 @@ class @MergeRequestWidget
           when 'merged'
             location.reload()
           else
-            setTimeout(merge_request_widget.mergeInProgress, 3000)
+            setTimeout(merge_request_widget.mergeInProgress, 2000)
       dataType: 'json'
 
   getMergeStatus: ->
diff --git a/app/assets/stylesheets/generic/common.scss b/app/assets/stylesheets/generic/common.scss
index d36530169a9..bf5c7a8d75e 100644
--- a/app/assets/stylesheets/generic/common.scss
+++ b/app/assets/stylesheets/generic/common.scss
@@ -373,3 +373,23 @@ table {
     border-color: #EEE !important;
   }
 }
+
+.center-top-menu {
+  border-bottom: 1px solid #EEE;
+  list-style: none;
+  text-align: center;
+  padding-bottom: 15px;
+  margin-bottom: 15px;
+
+  li {
+    display: inline-block;
+
+    a {
+      padding: 10px;
+    }
+
+    &.active a {
+      color: #666;
+    }
+  }
+}
diff --git a/app/assets/stylesheets/pages/explore.scss b/app/assets/stylesheets/pages/explore.scss
index 9b92128624c..da06fe9954e 100644
--- a/app/assets/stylesheets/pages/explore.scss
+++ b/app/assets/stylesheets/pages/explore.scss
@@ -6,3 +6,11 @@
     font-size: 30px;
   }
 }
+
+.explore-trending-block {
+  .lead {
+    line-height: 32px;
+    font-size: 18px;
+    margin-top: 10px;
+  }
+}
diff --git a/app/controllers/admin/application_settings_controller.rb b/app/controllers/admin/application_settings_controller.rb
index c7c643db401..f38e07af84b 100644
--- a/app/controllers/admin/application_settings_controller.rb
+++ b/app/controllers/admin/application_settings_controller.rb
@@ -29,6 +29,15 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
       end
     end
 
+    import_sources = params[:application_setting][:import_sources]
+    if import_sources.nil?
+      params[:application_setting][:import_sources] = []
+    else
+      import_sources.map! do |source|
+        source.to_str
+      end
+    end
+
     params.require(:application_setting).permit(
       :default_projects_limit,
       :default_branch_protection,
@@ -47,6 +56,7 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
       :version_check_enabled,
       :user_oauth_applications,
       restricted_visibility_levels: [],
+      import_sources: []
     )
   end
 end
diff --git a/app/controllers/admin/projects_controller.rb b/app/controllers/admin/projects_controller.rb
index da5f5bb83fa..ae1de06b983 100644
--- a/app/controllers/admin/projects_controller.rb
+++ b/app/controllers/admin/projects_controller.rb
@@ -9,6 +9,7 @@ class Admin::ProjectsController < Admin::ApplicationController
     @projects = @projects.where("visibility_level IN (?)", params[:visibility_levels]) if params[:visibility_levels].present?
     @projects = @projects.with_push if params[:with_push].present?
     @projects = @projects.abandoned if params[:abandoned].present?
+    @projects = @projects.non_archived unless params[:with_archived].present?
     @projects = @projects.search(params[:name]) if params[:name].present?
     @projects = @projects.sort(@sort = params[:sort])
     @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page]).per(PER_PAGE)
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 3ce8dbc9407..12d439b0b31 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -20,7 +20,7 @@ class ApplicationController < ActionController::Base
   protect_from_forgery with: :exception
 
   helper_method :abilities, :can?, :current_application_settings
-  helper_method :github_import_enabled?, :gitlab_import_enabled?, :bitbucket_import_enabled?
+  helper_method :import_sources_enabled?, :github_import_enabled?, :github_import_configured?, :gitlab_import_enabled?, :gitlab_import_configured?, :bitbucket_import_enabled?, :bitbucket_import_configured?, :gitorious_import_enabled?, :google_code_import_enabled?, :git_import_enabled?
 
   rescue_from Encoding::CompatibilityError do |exception|
     log_exception(exception)
@@ -298,15 +298,43 @@ class ApplicationController < ActionController::Base
     @issuable_finder.execute
   end
 
+  def import_sources_enabled?
+    !current_application_settings.import_sources.empty?
+  end
+
   def github_import_enabled?
+    current_application_settings.import_sources.include?('github')
+  end
+
+  def github_import_configured?
     Gitlab::OAuth::Provider.enabled?(:github)
   end
 
   def gitlab_import_enabled?
+    request.host != 'gitlab.com' && current_application_settings.import_sources.include?('gitlab')
+  end
+
+  def gitlab_import_configured?
     Gitlab::OAuth::Provider.enabled?(:gitlab)
   end
 
   def bitbucket_import_enabled?
+    current_application_settings.import_sources.include?('bitbucket')
+  end
+
+  def bitbucket_import_configured?
     Gitlab::OAuth::Provider.enabled?(:bitbucket) && Gitlab::BitbucketImport.public_key.present?
   end
+
+  def gitorious_import_enabled?
+    current_application_settings.import_sources.include?('gitorious')
+  end
+
+  def google_code_import_enabled?
+    current_application_settings.import_sources.include?('google_code')
+  end
+
+  def git_import_enabled?
+    current_application_settings.import_sources.include?('git')
+  end
 end
diff --git a/app/controllers/explore/projects_controller.rb b/app/controllers/explore/projects_controller.rb
index e9bcb44f6b3..6c733c1ae4d 100644
--- a/app/controllers/explore/projects_controller.rb
+++ b/app/controllers/explore/projects_controller.rb
@@ -7,6 +7,7 @@ class Explore::ProjectsController < Explore::ApplicationController
     @tags = @projects.tags_on(:tags)
     @projects = @projects.tagged_with(params[:tag]) if params[:tag].present?
     @projects = @projects.where(visibility_level: params[:visibility_level]) if params[:visibility_level].present?
+    @projects = @projects.non_archived
     @projects = @projects.search(params[:search]) if params[:search].present?
     @projects = @projects.sort(@sort = params[:sort])
     @projects = @projects.includes(:namespace).page(params[:page]).per(PER_PAGE)
@@ -14,6 +15,7 @@ class Explore::ProjectsController < Explore::ApplicationController
 
   def trending
     @trending_projects = TrendingProjectsFinder.new.execute(current_user)
+    @trending_projects = @trending_projects.non_archived
     @trending_projects = @trending_projects.page(params[:page]).per(PER_PAGE)
   end
 
diff --git a/app/controllers/help_controller.rb b/app/controllers/help_controller.rb
index 8a45dc8860d..71831c5380d 100644
--- a/app/controllers/help_controller.rb
+++ b/app/controllers/help_controller.rb
@@ -10,7 +10,8 @@ class HelpController < ApplicationController
 
     respond_to do |format|
       format.any(:markdown, :md, :html) do
-        path = Rails.root.join('doc', @category, "#{@file}.md")
+        # Note: We are purposefully NOT using `Rails.root.join`
+        path = File.join(Rails.root, 'doc', @category, "#{@file}.md")
 
         if File.exist?(path)
           @markdown = File.read(path)
@@ -24,7 +25,8 @@ class HelpController < ApplicationController
 
       # Allow access to images in the doc folder
       format.any(:png, :gif, :jpeg) do
-        path = Rails.root.join('doc', @category, "#{@file}.#{params[:format]}")
+        # Note: We are purposefully NOT using `Rails.root.join`
+        path = File.join(Rails.root, 'doc', @category, "#{@file}.#{params[:format]}")
 
         if File.exist?(path)
           send_file(path, disposition: 'inline')
diff --git a/app/controllers/import/gitorious_controller.rb b/app/controllers/import/gitorious_controller.rb
index c121d2de7cb..f24cdb3709a 100644
--- a/app/controllers/import/gitorious_controller.rb
+++ b/app/controllers/import/gitorious_controller.rb
@@ -1,4 +1,5 @@
 class Import::GitoriousController < Import::BaseController
+  before_action :verify_gitorious_import_enabled
 
   def new
     redirect_to client.authorize_url(callback_import_gitorious_url)
@@ -40,4 +41,8 @@ class Import::GitoriousController < Import::BaseController
     @client ||= Gitlab::GitoriousImport::Client.new(session[:gitorious_repos])
   end
 
+  def verify_gitorious_import_enabled
+    not_found! unless gitorious_import_enabled?
+  end
+
 end
diff --git a/app/controllers/import/google_code_controller.rb b/app/controllers/import/google_code_controller.rb
index 4aa6d28c9a8..82fadeb7e83 100644
--- a/app/controllers/import/google_code_controller.rb
+++ b/app/controllers/import/google_code_controller.rb
@@ -1,4 +1,5 @@
 class Import::GoogleCodeController < Import::BaseController
+  before_action :verify_google_code_import_enabled
   before_action :user_map, only: [:new_user_map, :create_user_map]
 
   def new
@@ -104,6 +105,10 @@ class Import::GoogleCodeController < Import::BaseController
     @client ||= Gitlab::GoogleCodeImport::Client.new(session[:google_code_dump])
   end
 
+  def verify_google_code_import_enabled
+    not_found! unless google_code_import_enabled?
+  end
+
   def user_map
     @user_map ||= begin
       user_map = client.user_map
diff --git a/app/controllers/projects/blob_controller.rb b/app/controllers/projects/blob_controller.rb
index b762518d377..100d3d3b317 100644
--- a/app/controllers/projects/blob_controller.rb
+++ b/app/controllers/projects/blob_controller.rb
@@ -13,27 +13,20 @@ class Projects::BlobController < Projects::ApplicationController
   before_action :commit, except: [:new, :create]
   before_action :blob, except: [:new, :create]
   before_action :from_merge_request, only: [:edit, :update]
-  before_action :after_edit_path, only: [:edit, :update]
   before_action :require_branch_head, only: [:edit, :update]
+  before_action :editor_variables, except: [:show, :preview, :diff]
+  before_action :after_edit_path, only: [:edit, :update]
 
   def new
     commit unless @repository.empty?
   end
 
   def create
-    file_path = File.join(@path, File.basename(params[:file_name]))
-    result = Files::CreateService.new(
-      @project,
-      current_user,
-      params.merge(new_branch: sanitized_new_branch_name),
-      @ref,
-      file_path
-    ).execute
+    result = Files::CreateService.new(@project, current_user, @commit_params).execute
 
     if result[:status] == :success
       flash[:notice] = "Your changes have been successfully committed"
-      ref = sanitized_new_branch_name.presence || @ref
-      redirect_to namespace_project_blob_path(@project.namespace, @project, File.join(ref, file_path))
+      redirect_to namespace_project_blob_path(@project.namespace, @project, File.join(@target_branch, @file_path))
     else
       flash[:alert] = result[:message]
       render :new
@@ -48,22 +41,10 @@ class Projects::BlobController < Projects::ApplicationController
   end
 
   def update
-    result = Files::UpdateService.
-      new(
-        @project,
-        current_user,
-        params.merge(new_branch: sanitized_new_branch_name),
-        @ref,
-        @path
-      ).execute
+    result = Files::UpdateService.new(@project, current_user, @commit_params).execute
 
     if result[:status] == :success
       flash[:notice] = "Your changes have been successfully committed"
-
-      if from_merge_request
-        from_merge_request.reload_code
-      end
-
       redirect_to after_edit_path
     else
       flash[:alert] = result[:message]
@@ -80,12 +61,11 @@ class Projects::BlobController < Projects::ApplicationController
   end
 
   def destroy
-    result = Files::DeleteService.new(@project, current_user, params, @ref, @path).execute
+    result = Files::DeleteService.new(@project, current_user, @commit_params).execute
 
     if result[:status] == :success
       flash[:notice] = "Your changes have been successfully committed"
-      redirect_to namespace_project_tree_path(@project.namespace, @project,
-                                              @ref)
+      redirect_to namespace_project_tree_path(@project.namespace, @project, @target_branch)
     else
       flash[:alert] = result[:message]
       render :show
@@ -135,7 +115,6 @@ class Projects::BlobController < Projects::ApplicationController
     @id = params[:id]
     @ref, @path = extract_ref(@id)
 
-
   rescue InvalidPathError
     not_found!
   end
@@ -145,8 +124,8 @@ class Projects::BlobController < Projects::ApplicationController
       if from_merge_request
         diffs_namespace_project_merge_request_path(from_merge_request.target_project.namespace, from_merge_request.target_project, from_merge_request) +
           "#file-path-#{hexdigest(@path)}"
-      elsif sanitized_new_branch_name.present?
-        namespace_project_blob_path(@project.namespace, @project, File.join(sanitized_new_branch_name, @path))
+      elsif @target_branch.present?
+        namespace_project_blob_path(@project.namespace, @project, File.join(@target_branch, @path))
       else
         namespace_project_blob_path(@project.namespace, @project, @id)
       end
@@ -160,4 +139,25 @@ class Projects::BlobController < Projects::ApplicationController
   def sanitized_new_branch_name
     @new_branch ||= sanitize(strip_tags(params[:new_branch]))
   end
+
+  def editor_variables
+    @current_branch = @ref
+    @target_branch = (sanitized_new_branch_name || @ref)
+
+    @file_path =
+      if action_name.to_s == 'create'
+        File.join(@path, File.basename(params[:file_name]))
+      else
+        @path
+      end
+
+    @commit_params = {
+      file_path: @file_path,
+      current_branch: @current_branch,
+      target_branch: @target_branch,
+      commit_message: params[:commit_message],
+      file_content: params[:content],
+      file_content_encoding: params[:encoding]
+    }
+  end
 end
diff --git a/app/controllers/projects/compare_controller.rb b/app/controllers/projects/compare_controller.rb
index c5f085c236f..d9b3adae95b 100644
--- a/app/controllers/projects/compare_controller.rb
+++ b/app/controllers/projects/compare_controller.rb
@@ -13,13 +13,8 @@ class Projects::CompareController < Projects::ApplicationController
     base_ref = Addressable::URI.unescape(params[:from])
     @ref = head_ref = Addressable::URI.unescape(params[:to])
 
-    compare_result = CompareService.new.execute(
-      current_user,
-      @project,
-      head_ref,
-      @project,
-      base_ref
-    )
+    compare_result = CompareService.new.
+      execute(@project, head_ref, @project, base_ref)
 
     @commits = compare_result.commits
     @diffs = compare_result.diffs
diff --git a/app/controllers/projects/merge_requests_controller.rb b/app/controllers/projects/merge_requests_controller.rb
index d1265198318..f3054881daf 100644
--- a/app/controllers/projects/merge_requests_controller.rb
+++ b/app/controllers/projects/merge_requests_controller.rb
@@ -1,9 +1,7 @@
-require 'gitlab/satellite/satellite'
-
 class Projects::MergeRequestsController < Projects::ApplicationController
   before_action :module_enabled
   before_action :merge_request, only: [
-    :edit, :update, :show, :diffs, :commits, :automerge, :automerge_check,
+    :edit, :update, :show, :diffs, :commits, :merge, :merge_check,
     :ci_status, :toggle_subscription
   ]
   before_action :closes_issues, only: [:edit, :update, :show, :diffs, :commits]
@@ -137,7 +135,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     end
   end
 
-  def automerge_check
+  def merge_check
     if @merge_request.unchecked?
       @merge_request.check_if_can_be_merged
     end
@@ -147,11 +145,11 @@ class Projects::MergeRequestsController < Projects::ApplicationController
     render partial: "projects/merge_requests/widget/show.html.haml", layout: false
   end
 
-  def automerge
+  def merge
     return access_denied! unless @merge_request.can_be_merged_by?(current_user)
 
-    if @merge_request.automergeable?
-      AutoMergeWorker.perform_async(@merge_request.id, current_user.id, params)
+    if @merge_request.mergeable?
+      MergeWorker.perform_async(@merge_request.id, current_user.id, params)
       @status = true
     else
       @status = false
diff --git a/app/helpers/application_settings_helper.rb b/app/helpers/application_settings_helper.rb
index 61d14383945..7d6b58ee21a 100644
--- a/app/helpers/application_settings_helper.rb
+++ b/app/helpers/application_settings_helper.rb
@@ -39,4 +39,21 @@ module ApplicationSettingsHelper
       end
     end
   end
+
+  # Return a group of checkboxes that use Bootstrap's button plugin for a
+  # toggle button effect.
+  def import_sources_checkboxes(help_block_id)
+    Gitlab::ImportSources.options.map do |name, source|
+      checked = current_application_settings.import_sources.include?(source)
+      css_class = 'btn'
+      css_class += ' active' if checked
+      checkbox_name = 'application_setting[import_sources][]'
+
+      label_tag(checkbox_name, class: css_class) do
+        check_box_tag(checkbox_name, source, checked,
+                      autocomplete: 'off',
+                      'aria-describedby' => help_block_id) + name
+      end
+    end
+  end
 end
diff --git a/app/helpers/explore_helper.rb b/app/helpers/explore_helper.rb
index 7616fe6bad8..0d291f9a87e 100644
--- a/app/helpers/explore_helper.rb
+++ b/app/helpers/explore_helper.rb
@@ -10,7 +10,7 @@ module ExploreHelper
 
     options = exist_opts.merge(options)
 
-    path = request.path
+    path = explore_projects_path
     path << "?#{options.to_param}"
     path
   end
diff --git a/app/helpers/tab_helper.rb b/app/helpers/tab_helper.rb
index 77727337f07..0e7d8065ac7 100644
--- a/app/helpers/tab_helper.rb
+++ b/app/helpers/tab_helper.rb
@@ -67,6 +67,14 @@ module TabHelper
       path.any? do |single_path|
         current_path?(single_path)
       end
+    elsif page = options.delete(:page)
+      unless page.respond_to?(:each)
+        page = [page]
+      end
+
+      page.any? do |single_page|
+        current_page?(single_page)
+      end
     else
       c = options.delete(:controller)
       a = options.delete(:action)
diff --git a/app/models/application_setting.rb b/app/models/application_setting.rb
index 6d1ad82a262..8f27e35d723 100644
--- a/app/models/application_setting.rb
+++ b/app/models/application_setting.rb
@@ -22,10 +22,12 @@
 #  user_oauth_applications      :boolean          default(TRUE)
 #  after_sign_out_path          :string(255)
 #  session_expire_delay         :integer          default(10080), not null
+#  import_sources               :text
 #
 
 class ApplicationSetting < ActiveRecord::Base
   serialize :restricted_visibility_levels
+  serialize :import_sources
   serialize :restricted_signup_domains, Array
   attr_accessor :restricted_signup_domains_raw
 
@@ -52,6 +54,16 @@ class ApplicationSetting < ActiveRecord::Base
     end
   end
 
+  validates_each :import_sources do |record, attr, value|
+    unless value.nil?
+      value.each do |source|
+        unless Gitlab::ImportSources.options.has_value?(source)
+          record.errors.add(attr, "'#{source}' is not a import source")
+        end
+      end
+    end
+  end
+
   def self.current
     ApplicationSetting.last
   end
@@ -70,7 +82,8 @@ class ApplicationSetting < ActiveRecord::Base
       session_expire_delay: Settings.gitlab['session_expire_delay'],
       default_project_visibility: Settings.gitlab.default_projects_features['visibility_level'],
       default_snippet_visibility: Settings.gitlab.default_projects_features['visibility_level'],
-      restricted_signup_domains: Settings.gitlab['restricted_signup_domains']
+      restricted_signup_domains: Settings.gitlab['restricted_signup_domains'],
+      import_sources: ['github','bitbucket','gitlab','gitorious','google_code','git']
     )
   end
 
diff --git a/app/models/merge_request.rb b/app/models/merge_request.rb
index 324d1795ab4..467b90861f9 100644
--- a/app/models/merge_request.rb
+++ b/app/models/merge_request.rb
@@ -41,8 +41,6 @@ class MergeRequest < ActiveRecord::Base
 
   delegate :commits, :diffs, :last_commit, :last_commit_short_sha, to: :merge_request_diff, prefix: nil
 
-  attr_accessor :should_remove_source_branch
-
   # When this attribute is true some MR validation is ignored
   # It allows us to close or modify broken merge requests
   attr_accessor :allow_broken
@@ -57,7 +55,7 @@ class MergeRequest < ActiveRecord::Base
       transition [:reopened, :opened] => :closed
     end
 
-    event :merge do
+    event :mark_as_merged do
       transition [:reopened, :opened, :locked] => :merged
     end
 
@@ -205,7 +203,10 @@ class MergeRequest < ActiveRecord::Base
   end
 
   def check_if_can_be_merged
-    if Gitlab::Satellite::MergeAction.new(self.author, self).can_be_merged?
+    can_be_merged =
+      project.repository.can_be_merged?(source_sha, target_branch)
+
+    if can_be_merged
       mark_as_mergeable
     else
       mark_as_unmergeable
@@ -220,18 +221,6 @@ class MergeRequest < ActiveRecord::Base
     self.target_project.events.where(target_id: self.id, target_type: "MergeRequest", action: Event::CLOSED).last
   end
 
-  def automerge!(current_user, commit_message = nil)
-    return unless automergeable?
-
-    MergeRequests::AutoMergeService.
-      new(target_project, current_user).
-      execute(self, commit_message)
-  end
-
-  def remove_source_branch?
-    self.should_remove_source_branch && !self.source_project.root_ref?(self.source_branch) && !self.for_fork?
-  end
-
   def open?
     opened? || reopened?
   end
@@ -240,11 +229,11 @@ class MergeRequest < ActiveRecord::Base
     title =~ /\A\[?WIP\]?:? /i
   end
 
-  def automergeable?
+  def mergeable?
     open? && !work_in_progress? && can_be_merged?
   end
 
-  def automerge_status
+  def gitlab_merge_status
     if work_in_progress?
       "work_in_progress"
     else
@@ -271,14 +260,14 @@ class MergeRequest < ActiveRecord::Base
   #
   # see "git diff"
   def to_diff(current_user)
-    Gitlab::Satellite::MergeAction.new(current_user, self).diff_in_satellite
+    target_project.repository.diff_text(target_branch, source_sha)
   end
 
   # Returns the commit as a series of email patches.
   #
   # see "git format-patch"
   def to_patch(current_user)
-    Gitlab::Satellite::MergeAction.new(current_user, self).format_patch
+    target_project.repository.format_patch(target_branch, source_sha)
   end
 
   def hook_attrs
@@ -429,4 +418,30 @@ class MergeRequest < ActiveRecord::Base
       "Open"
     end
   end
+
+  def target_sha
+    @target_sha ||= target_project.
+      repository.commit(target_branch).sha
+  end
+
+  def source_sha
+    commits.first.sha
+  end
+
+  def fetch_ref
+    target_project.repository.fetch_ref(
+      source_project.repository.path_to_repo,
+      "refs/heads/#{source_branch}",
+      "refs/merge-requests/#{iid}/head"
+    )
+  end
+
+  def in_locked_state
+    begin
+      lock_mr
+      yield
+    ensure
+      unlock_mr if locked?
+    end
+  end
 end
diff --git a/app/models/merge_request_diff.rb b/app/models/merge_request_diff.rb
index df1c2b78758..e317c8eac4d 100644
--- a/app/models/merge_request_diff.rb
+++ b/app/models/merge_request_diff.rb
@@ -16,9 +16,8 @@ require Rails.root.join("app/models/commit")
 class MergeRequestDiff < ActiveRecord::Base
   include Sortable
 
-  # Prevent store of diff
-  # if commits amount more then 200
-  COMMITS_SAFE_SIZE = 200
+  # Prevent store of diff if commits amount more then 500
+  COMMITS_SAFE_SIZE = 500
 
   attr_reader :commits, :diffs
 
@@ -124,12 +123,12 @@ class MergeRequestDiff < ActiveRecord::Base
     if new_diffs.any?
       if new_diffs.size > Commit::DIFF_HARD_LIMIT_FILES
         self.state = :overflow_diff_files_limit
-        new_diffs = []
+        new_diffs = new_diffs.first[Commit::DIFF_HARD_LIMIT_LINES]
       end
 
       if new_diffs.sum { |diff| diff.diff.lines.count } > Commit::DIFF_HARD_LIMIT_LINES
         self.state = :overflow_diff_lines_limit
-        new_diffs = []
+        new_diffs = new_diffs.first[Commit::DIFF_HARD_LIMIT_LINES]
       end
     end
 
@@ -160,12 +159,21 @@ class MergeRequestDiff < ActiveRecord::Base
   private
 
   def compare_result
-    @compare_result ||= CompareService.new.execute(
-      merge_request.author,
-      merge_request.source_project,
-      merge_request.source_branch,
-      merge_request.target_project,
-      merge_request.target_branch,
-    )
+    @compare_result ||=
+      begin
+        # Update ref for merge request
+        merge_request.fetch_ref
+
+        # Get latest sha of branch from source project
+        source_sha = merge_request.source_project.commit(source_branch).sha
+
+        Gitlab::CompareResult.new(
+          Gitlab::Git::Compare.new(
+            merge_request.target_project.repository.raw_repository,
+            merge_request.target_branch,
+            source_sha,
+          )
+        )
+      end
   end
 end
diff --git a/app/models/namespace.rb b/app/models/namespace.rb
index 30ffacadded..161a16ca61c 100644
--- a/app/models/namespace.rb
+++ b/app/models/namespace.rb
@@ -118,12 +118,11 @@ class Namespace < ActiveRecord::Base
     gitlab_shell.add_namespace(path_was)
 
     if gitlab_shell.mv_namespace(path_was, path)
-      # If repositories moved successfully we need to remove old satellites
-      # and send update instructions to users.
+      # If repositories moved successfully we need to
+      # send update instructions to users.
       # However we cannot allow rollback since we moved namespace dir
       # So we basically we mute exceptions in next actions
       begin
-        gitlab_shell.rm_satellites(path_was)
         send_update_instructions
       rescue
         # Returning false does not rollback after_* transaction but gives
diff --git a/app/models/project.rb b/app/models/project.rb
index 3dc1729e812..69f9af91c51 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -215,7 +215,7 @@ class Project < ActiveRecord::Base
     end
 
     def search(query)
-      joins(:namespace).where('projects.archived = ?', false).
+      joins(:namespace).
         where('LOWER(projects.name) LIKE :query OR
               LOWER(projects.path) LIKE :query OR
               LOWER(namespaces.name) LIKE :query OR
@@ -520,14 +520,6 @@ class Project < ActiveRecord::Base
     !repository.exists? || repository.empty?
   end
 
-  def ensure_satellite_exists
-    self.satellite.create unless self.satellite.exists?
-  end
-
-  def satellite
-    @satellite ||= Gitlab::Satellite::Satellite.new(self)
-  end
-
   def repo
     repository.raw
   end
@@ -597,14 +589,11 @@ class Project < ActiveRecord::Base
     new_path_with_namespace = File.join(namespace_dir, path)
 
     if gitlab_shell.mv_repository(old_path_with_namespace, new_path_with_namespace)
-      # If repository moved successfully we need to remove old satellite
-      # and send update instructions to users.
+      # If repository moved successfully we need to send update instructions to users.
       # However we cannot allow rollback since we moved repository
       # So we basically we mute exceptions in next actions
       begin
         gitlab_shell.mv_repository("#{old_path_with_namespace}.wiki", "#{new_path_with_namespace}.wiki")
-        gitlab_shell.rm_satellites(old_path_with_namespace)
-        ensure_satellite_exists
         send_move_instructions
         reset_events_cache
       rescue
@@ -702,7 +691,6 @@ class Project < ActiveRecord::Base
   def create_repository
     if forked?
       if gitlab_shell.fork_repository(forked_from_project.path_with_namespace, self.namespace.path)
-        ensure_satellite_exists
         true
       else
         errors.add(:base, 'Failed to fork repository via gitlab-shell')
diff --git a/app/models/project_services/gitlab_ci_service.rb b/app/models/project_services/gitlab_ci_service.rb
index 5aaa4e85cbc..ecdcd48ae60 100644
--- a/app/models/project_services/gitlab_ci_service.rb
+++ b/app/models/project_services/gitlab_ci_service.rb
@@ -74,6 +74,8 @@ class GitlabCiService < CiService
     else
       :error
     end
+  rescue Errno::ECONNREFUSED
+    :error
   end
 
   def fork_registration(new_project, private_token)
@@ -103,6 +105,8 @@ class GitlabCiService < CiService
     if response.code == 200 and response["coverage"]
       response["coverage"]
     end
+  rescue Errno::ECONNREFUSED
+    nil
   end
 
   def build_page(sha, ref)
diff --git a/app/models/repository.rb b/app/models/repository.rb
index 24c32d90051..79b48ebfedf 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -1,4 +1,9 @@
+require 'securerandom'
+
 class Repository
+  class PreReceiveError < StandardError; end
+  class CommitError < StandardError; end
+
   include Gitlab::ShellAdapter
 
   attr_accessor :raw_repository, :path_with_namespace, :project
@@ -368,6 +373,89 @@ class Repository
     @root_ref ||= raw_repository.root_ref
   end
 
+  def commit_file(user, path, content, message, branch)
+    commit_with_hooks(user, branch) do |ref|
+      path[0] = '' if path[0] == '/'
+
+      committer = user_to_comitter(user)
+      options = {}
+      options[:committer] = committer
+      options[:author] = committer
+      options[:commit] = {
+        message: message,
+        branch: ref,
+      }
+
+      options[:file] = {
+        content: content,
+        path: path
+      }
+
+      Gitlab::Git::Blob.commit(raw_repository, options)
+    end
+  end
+
+  def remove_file(user, path, message, branch)
+    commit_with_hooks(user, branch) do |ref|
+      path[0] = '' if path[0] == '/'
+
+      committer = user_to_comitter(user)
+      options = {}
+      options[:committer] = committer
+      options[:author] = committer
+      options[:commit] = {
+        message: message,
+        branch: ref
+      }
+
+      options[:file] = {
+        path: path
+      }
+
+      Gitlab::Git::Blob.remove(raw_repository, options)
+    end
+  end
+
+  def user_to_comitter(user)
+    {
+      email: user.email,
+      name: user.name,
+      time: Time.now
+    }
+  end
+
+  def can_be_merged?(source_sha, target_branch)
+    our_commit = rugged.branches[target_branch].target
+    their_commit = rugged.lookup(source_sha)
+
+    if our_commit && their_commit
+      !rugged.merge_commits(our_commit, their_commit).conflicts?
+    else
+      false
+    end
+  end
+
+  def merge(user, source_sha, target_branch, options = {})
+    our_commit = rugged.branches[target_branch].target
+    their_commit = rugged.lookup(source_sha)
+
+    raise "Invalid merge target" if our_commit.nil?
+    raise "Invalid merge source" if their_commit.nil?
+
+    merge_index = rugged.merge_commits(our_commit, their_commit)
+    return false if merge_index.conflicts?
+
+    commit_with_hooks(user, target_branch) do |ref|
+      actual_options = options.merge(
+        parents: [our_commit, their_commit],
+        tree: merge_index.write_tree(rugged),
+        update_ref: ref
+      )
+
+      Rugged::Commit.create(rugged, actual_options)
+    end
+  end
+
   def merged_to_root_ref?(branch_name)
     branch_commit = commit(branch_name)
     root_ref_commit = commit(root_ref)
@@ -412,6 +500,64 @@ class Repository
     )
   end
 
+  def fetch_ref(source_path, source_ref, target_ref)
+    args = %W(git fetch #{source_path} #{source_ref}:#{target_ref})
+    Gitlab::Popen.popen(args, path_to_repo)
+  end
+
+  def commit_with_hooks(current_user, branch)
+    oldrev = Gitlab::Git::BLANK_SHA
+    ref = Gitlab::Git::BRANCH_REF_PREFIX + branch
+    gl_id = Gitlab::ShellEnv.gl_id(current_user)
+    was_empty = empty?
+
+    # Create temporary ref
+    random_string = SecureRandom.hex
+    tmp_ref = "refs/tmp/#{random_string}/head"
+
+    unless was_empty
+      oldrev = find_branch(branch).target
+      rugged.references.create(tmp_ref, oldrev)
+    end
+
+    # Make commit in tmp ref
+    newrev = yield(tmp_ref)
+
+    unless newrev
+      raise CommitError.new('Failed to create commit')
+    end
+
+    # Run GitLab pre-receive hook
+    pre_receive_hook = Gitlab::Git::Hook.new('pre-receive', path_to_repo)
+    status = pre_receive_hook.trigger(gl_id, oldrev, newrev, ref)
+
+    if status
+      if was_empty
+        # Create branch
+        rugged.references.create(ref, newrev)
+      else
+        # Update head
+        current_head = find_branch(branch).target
+
+        # Make sure target branch was not changed during pre-receive hook
+        if current_head == oldrev
+          rugged.references.update(ref, newrev)
+        else
+          raise CommitError.new('Commit was rejected because branch received new push')
+        end
+      end
+
+      # Run GitLab post receive hook
+      post_receive_hook = Gitlab::Git::Hook.new('post-receive', path_to_repo)
+      status = post_receive_hook.trigger(gl_id, oldrev, newrev, ref)
+    else
+      # Remove tmp ref and return error to user
+      rugged.references.delete(tmp_ref)
+
+      raise PreReceiveError.new('Commit was rejected by pre-receive hook')
+    end
+  end
+
   private
 
   def cache
diff --git a/app/services/base_service.rb b/app/services/base_service.rb
index 6d9ed345914..f00ec7408b6 100644
--- a/app/services/base_service.rb
+++ b/app/services/base_service.rb
@@ -31,6 +31,10 @@ class BaseService
     SystemHooksService.new
   end
 
+  def repository
+    project.repository
+  end
+
   # Add an error to the specified model for restricted visibility levels
   def deny_visibility_level(model, denied_visibility_level = nil)
     denied_visibility_level ||= model.visibility_level
diff --git a/app/services/compare_service.rb b/app/services/compare_service.rb
index 6aa9df4b194..70f642baaaa 100644
--- a/app/services/compare_service.rb
+++ b/app/services/compare_service.rb
@@ -1,27 +1,28 @@
+require 'securerandom'
+
 # Compare 2 branches for one repo or between repositories
 # and return Gitlab::CompareResult object that responds to commits and diffs
 class CompareService
-  def execute(current_user, source_project, source_branch, target_project, target_branch)
-    # Try to compare branches to get commits list and diffs
-    #
-    # Note: Use satellite only when need to compare between two repos
-    # because satellites are slower than operations on bare repo
-    if target_project == source_project
-      Gitlab::CompareResult.new(
-        Gitlab::Git::Compare.new(
-          target_project.repository.raw_repository,
-          target_branch,
-          source_branch,
-        )
+  def execute(source_project, source_branch, target_project, target_branch)
+    source_sha = source_project.commit(source_branch).sha
+
+    # If compare with other project we need to fetch ref first
+    unless target_project == source_project
+      random_string = SecureRandom.hex
+
+      target_project.repository.fetch_ref(
+        source_project.repository.path_to_repo,
+        "refs/heads/#{source_branch}",
+        "refs/tmp/#{random_string}/head"
       )
-    else
-      Gitlab::Satellite::CompareAction.new(
-        current_user,
-        target_project,
-        target_branch,
-        source_project,
-        source_branch
-      ).result
     end
+
+    Gitlab::CompareResult.new(
+      Gitlab::Git::Compare.new(
+        target_project.repository.raw_repository,
+        target_branch,
+        source_sha,
+      )
+    )
   end
 end
diff --git a/app/services/files/base_service.rb b/app/services/files/base_service.rb
index bd245100955..7aecee217d8 100644
--- a/app/services/files/base_service.rb
+++ b/app/services/files/base_service.rb
@@ -1,17 +1,75 @@
 module Files
   class BaseService < ::BaseService
-    attr_reader :ref, :path
+    class ValidationError < StandardError; end
 
-    def initialize(project, user, params, ref, path = nil)
-      @project, @current_user, @params = project, user, params.dup
-      @ref = ref
-      @path = path
+    def execute
+      @current_branch = params[:current_branch]
+      @target_branch  = params[:target_branch]
+      @commit_message = params[:commit_message]
+      @file_path      = params[:file_path]
+      @file_content   = if params[:file_content_encoding] == 'base64'
+                          Base64.decode64(params[:file_content])
+                        else
+                          params[:file_content]
+                        end
+
+      # Validate parameters
+      validate
+
+      # Create new branch if it different from current_branch
+      if @target_branch != @current_branch
+        create_target_branch
+      end
+
+      if sha = commit
+        success
+      else
+        error("Something went wrong. Your changes were not committed")
+      end
+    rescue Repository::CommitError, Repository::PreReceiveError, ValidationError => ex
+      error(ex.message)
     end
 
     private
 
-    def repository
-      project.repository
+    def current_branch
+      @current_branch ||= params[:current_branch]
+    end
+
+    def target_branch
+      @target_branch ||= params[:target_branch]
+    end
+
+    def raise_error(message)
+      raise ValidationError.new(message)
+    end
+
+    def validate
+      allowed = ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(@target_branch)
+
+      unless allowed
+        raise_error("You are not allowed to push into this branch")
+      end
+
+      unless project.empty_repo?
+        unless repository.branch_names.include?(@current_branch)
+          raise_error("You can only create files if you are on top of a branch")
+        end
+
+        if @current_branch != @target_branch
+          if repository.branch_names.include?(@target_branch)
+            raise_error("Branch with such name already exists. You need to switch to this branch in order to make changes")
+          end
+        end
+      end
+    end
+
+    def create_target_branch
+      result = CreateBranchService.new(project, current_user).execute(@target_branch, @current_branch)
+
+      unless result[:status] == :success
+        raise_error("Something went wrong when we tried to create #{@target_branch} for you")
+      end
     end
   end
 end
diff --git a/app/services/files/create_service.rb b/app/services/files/create_service.rb
index 23833aa78ec..91d715b2d63 100644
--- a/app/services/files/create_service.rb
+++ b/app/services/files/create_service.rb
@@ -1,52 +1,30 @@
 require_relative "base_service"
 
 module Files
-  class CreateService < BaseService
-    def execute
-      allowed = Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(ref)
+  class CreateService < Files::BaseService
+    def commit
+      repository.commit_file(current_user, @file_path, @file_content, @commit_message, @target_branch)
+    end
 
-      unless allowed
-        return error("You are not allowed to create file in this branch")
-      end
+    def validate
+      super
 
-      file_name = File.basename(path)
-      file_path = path
+      file_name = File.basename(@file_path)
 
       unless file_name =~ Gitlab::Regex.file_name_regex
-        return error(
+        raise_error(
           'Your changes could not be committed, because the file name ' +
           Gitlab::Regex.file_name_regex_message
         )
       end
 
-      if project.empty_repo?
-        # everything is ok because repo does not have a commits yet
-      else
-        unless repository.branch_names.include?(ref)
-          return error("You can only create files if you are on top of a branch")
-        end
-
-        blob = repository.blob_at_branch(ref, file_path)
+      unless project.empty_repo?
+        blob = repository.blob_at_branch(@current_branch, @file_path)
 
         if blob
-          return error("Your changes could not be committed, because file with such name exists")
+          raise_error("Your changes could not be committed, because file with such name exists")
         end
       end
-
-
-      new_file_action = Gitlab::Satellite::NewFileAction.new(current_user, project, ref, file_path)
-      created_successfully = new_file_action.commit!(
-        params[:content],
-        params[:commit_message],
-        params[:encoding],
-        params[:new_branch]
-      )
-
-      if created_successfully
-        success
-      else
-        error("Your changes could not be committed, because the file has been changed")
-      end
     end
   end
 end
diff --git a/app/services/files/delete_service.rb b/app/services/files/delete_service.rb
index 1497a0f883b..27c881c3430 100644
--- a/app/services/files/delete_service.rb
+++ b/app/services/files/delete_service.rb
@@ -1,36 +1,9 @@
 require_relative "base_service"
 
 module Files
-  class DeleteService < BaseService
-    def execute
-      allowed = ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(ref)
-
-      unless allowed
-        return error("You are not allowed to push into this branch")
-      end
-
-      unless repository.branch_names.include?(ref)
-        return error("You can only create files if you are on top of a branch")
-      end
-
-      blob = repository.blob_at_branch(ref, path)
-
-      unless blob
-        return error("You can only edit text files")
-      end
-
-      delete_file_action = Gitlab::Satellite::DeleteFileAction.new(current_user, project, ref, path)
-
-      deleted_successfully = delete_file_action.commit!(
-        nil,
-        params[:commit_message]
-      )
-
-      if deleted_successfully
-        success
-      else
-        error("Your changes could not be committed, because the file has been changed")
-      end
+  class DeleteService < Files::BaseService
+    def commit
+      repository.remove_file(current_user, @file_path, @commit_message, @target_branch)
     end
   end
 end
diff --git a/app/services/files/update_service.rb b/app/services/files/update_service.rb
index 0724d3ae634..a20903c6f02 100644
--- a/app/services/files/update_service.rb
+++ b/app/services/files/update_service.rb
@@ -1,39 +1,9 @@
 require_relative "base_service"
 
 module Files
-  class UpdateService < BaseService
-    def execute
-      allowed = ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(ref)
-
-      unless allowed
-        return error("You are not allowed to push into this branch")
-      end
-
-      unless repository.branch_names.include?(ref)
-        return error("You can only create files if you are on top of a branch")
-      end
-
-      blob = repository.blob_at_branch(ref, path)
-
-      unless blob
-        return error("You can only edit text files")
-      end
-
-      edit_file_action = Gitlab::Satellite::EditFileAction.new(current_user, project, ref, path)
-      edit_file_action.commit!(
-        params[:content],
-        params[:commit_message],
-        params[:encoding],
-        params[:new_branch]
-      )
-
-      success
-    rescue Gitlab::Satellite::CheckoutFailed => ex
-      error("Your changes could not be committed because ref '#{ref}' could not be checked out", 400)
-    rescue Gitlab::Satellite::CommitFailed => ex
-      error("Your changes could not be committed. Maybe there was nothing to commit?", 409)
-    rescue Gitlab::Satellite::PushFailed => ex
-      error("Your changes could not be committed. Maybe the file was changed by another process?", 409)
+  class UpdateService < Files::BaseService
+    def commit
+      repository.commit_file(current_user, @file_path, @file_content, @commit_message, @target_branch)
     end
   end
 end
diff --git a/app/services/git_push_service.rb b/app/services/git_push_service.rb
index 5a2c97b08af..81535450ac1 100644
--- a/app/services/git_push_service.rb
+++ b/app/services/git_push_service.rb
@@ -10,16 +10,14 @@ class GitPushService
   #
   # Next, this method:
   #  1. Creates the push event
-  #  2. Ensures that the project satellite exists
-  #  3. Updates merge requests
-  #  4. Recognizes cross-references from commit messages
-  #  5. Executes the project's web hooks
-  #  6. Executes the project's services
+  #  2. Updates merge requests
+  #  3. Recognizes cross-references from commit messages
+  #  4. Executes the project's web hooks
+  #  5. Executes the project's services
   #
   def execute(project, user, oldrev, newrev, ref)
     @project, @user = project, user
 
-    project.ensure_satellite_exists
     project.repository.expire_cache
 
     if push_remove_branch?(ref, newrev)
@@ -133,7 +131,8 @@ class GitPushService
   end
 
   def is_default_branch?(ref)
-    Gitlab::Git.branch_ref?(ref) && Gitlab::Git.ref_name(ref) == project.default_branch
+    Gitlab::Git.branch_ref?(ref) &&
+      (Gitlab::Git.ref_name(ref) == project.default_branch || project.default_branch.nil?)
   end
 
   def commit_user(commit)
diff --git a/app/services/merge_requests/auto_merge_service.rb b/app/services/merge_requests/auto_merge_service.rb
deleted file mode 100644
index cdedf48b0c0..00000000000
--- a/app/services/merge_requests/auto_merge_service.rb
+++ /dev/null
@@ -1,30 +0,0 @@
-module MergeRequests
-  # AutoMergeService class
-  #
-  # Do git merge in satellite and in case of success
-  # mark merge request as merged and execute all hooks and notifications
-  # Called when you do merge via GitLab UI
-  class AutoMergeService < BaseMergeService
-    def execute(merge_request, commit_message)
-      merge_request.lock_mr
-
-      if Gitlab::Satellite::MergeAction.new(current_user, merge_request).merge!(commit_message)
-        merge_request.merge
-
-        create_merge_event(merge_request, current_user)
-        create_note(merge_request)
-        notification_service.merge_mr(merge_request, current_user)
-        execute_hooks(merge_request, 'merge')
-
-        true
-      else
-        merge_request.unlock_mr
-        false
-      end
-    rescue
-      merge_request.unlock_mr if merge_request.locked?
-      merge_request.mark_as_unmergeable
-      false
-    end
-  end
-end
diff --git a/app/services/merge_requests/base_merge_service.rb b/app/services/merge_requests/base_merge_service.rb
deleted file mode 100644
index 9579573adf9..00000000000
--- a/app/services/merge_requests/base_merge_service.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-module MergeRequests
-  class BaseMergeService < MergeRequests::BaseService
-
-    private
-
-    def create_merge_event(merge_request, current_user)
-      EventCreateService.new.merge_mr(merge_request, current_user)
-    end
-  end
-end
diff --git a/app/services/merge_requests/build_service.rb b/app/services/merge_requests/build_service.rb
index 956480938c3..a9b29f9654d 100644
--- a/app/services/merge_requests/build_service.rb
+++ b/app/services/merge_requests/build_service.rb
@@ -12,12 +12,16 @@ module MergeRequests
       merge_request.target_project ||= (project.forked_from_project || project)
       merge_request.target_branch ||= merge_request.target_project.default_branch
 
-      unless merge_request.target_branch && merge_request.source_branch
-        return build_failed(merge_request, nil)
+      if merge_request.target_branch.blank? || merge_request.source_branch.blank?
+        message =
+          if params[:source_branch] || params[:target_branch]
+            "You must select source and target branch"
+          end
+
+        return build_failed(merge_request, message)
       end
 
       compare_result = CompareService.new.execute(
-        current_user,
         merge_request.source_project,
         merge_request.source_branch,
         merge_request.target_project,
@@ -40,7 +44,6 @@ module MergeRequests
           merge_request.compare_diffs = diffs
 
         elsif diffs == false
-          # satellite timeout return false
           merge_request.can_be_created = false
           merge_request.compare_failed = true
         end
@@ -59,9 +62,6 @@ module MergeRequests
       end
 
       merge_request
-
-    rescue Gitlab::Satellite::BranchesWithoutParent
-      return build_failed(merge_request, "Selected branches have no common commit so they cannot be merged.")
     end
 
     def build_failed(merge_request, message)
diff --git a/app/services/merge_requests/merge_service.rb b/app/services/merge_requests/merge_service.rb
index 327ead4ff3f..98a67c0bc99 100644
--- a/app/services/merge_requests/merge_service.rb
+++ b/app/services/merge_requests/merge_service.rb
@@ -1,22 +1,47 @@
 module MergeRequests
   # MergeService class
   #
-  # Mark existing merge request as merged
-  # and execute all hooks and notifications
-  # Called when you do merge via command line and push code
-  # to target branch
-  class MergeService < BaseMergeService
+  # Do git merge and in case of success
+  # mark merge request as merged and execute all hooks and notifications
+  # Executed when you do merge via GitLab UI
+  #
+  class MergeService < MergeRequests::BaseService
+    attr_reader :merge_request, :commit_message
+
     def execute(merge_request, commit_message)
-      merge_request.merge
+      @commit_message = commit_message
+      @merge_request = merge_request
+
+      unless @merge_request.mergeable?
+        return error('Merge request is not mergeable')
+      end
+
+      merge_request.in_locked_state do
+        if commit
+          after_merge
+          success
+        else
+          error('Can not merge changes')
+        end
+      end
+    end
 
-      create_merge_event(merge_request, current_user)
-      create_note(merge_request)
-      notification_service.merge_mr(merge_request, current_user)
-      execute_hooks(merge_request, 'merge')
+    private
+
+    def commit
+      committer = repository.user_to_comitter(current_user)
+
+      options = {
+        message: commit_message,
+        author: committer,
+        committer: committer
+      }
+
+      repository.merge(current_user, merge_request.source_sha, merge_request.target_branch, options)
+    end
 
-      true
-    rescue
-      false
+    def after_merge
+      MergeRequests::PostMergeService.new(project, current_user).execute(merge_request)
     end
   end
 end
diff --git a/app/services/merge_requests/post_merge_service.rb b/app/services/merge_requests/post_merge_service.rb
new file mode 100644
index 00000000000..aceb8cb9021
--- /dev/null
+++ b/app/services/merge_requests/post_merge_service.rb
@@ -0,0 +1,22 @@
+module MergeRequests
+  # PostMergeService class
+  #
+  # Mark existing merge request as merged
+  # and execute all hooks and notifications
+  #
+  class PostMergeService < MergeRequests::BaseService
+    def execute(merge_request)
+      merge_request.mark_as_merged
+      create_merge_event(merge_request, current_user)
+      create_note(merge_request)
+      notification_service.merge_mr(merge_request, current_user)
+      execute_hooks(merge_request, 'merge')
+    end
+
+    private
+
+    def create_merge_event(merge_request, current_user)
+      EventCreateService.new.merge_mr(merge_request, current_user)
+    end
+  end
+end
diff --git a/app/services/merge_requests/refresh_service.rb b/app/services/merge_requests/refresh_service.rb
index d0648da049b..e903e48e3cd 100644
--- a/app/services/merge_requests/refresh_service.rb
+++ b/app/services/merge_requests/refresh_service.rb
@@ -33,9 +33,9 @@ module MergeRequests
 
 
       merge_requests.uniq.select(&:source_project).each do |merge_request|
-        MergeRequests::MergeService.
+        MergeRequests::PostMergeService.
           new(merge_request.target_project, @current_user).
-          execute(merge_request, nil)
+          execute(merge_request)
       end
     end
 
diff --git a/app/services/projects/destroy_service.rb b/app/services/projects/destroy_service.rb
index 403f419ec50..28872c89259 100644
--- a/app/services/projects/destroy_service.rb
+++ b/app/services/projects/destroy_service.rb
@@ -27,7 +27,6 @@ module Projects
         end
       end
 
-      project.satellite.destroy
       log_info("Project \"#{project.name}\" was removed")
       system_hook_service.execute_hooks_for(project, :destroy)
       true
diff --git a/app/services/projects/transfer_service.rb b/app/services/projects/transfer_service.rb
index f43c0ef70e9..550ed6897dd 100644
--- a/app/services/projects/transfer_service.rb
+++ b/app/services/projects/transfer_service.rb
@@ -33,9 +33,6 @@ module Projects
           raise TransferError.new("Project with same path in target namespace already exists")
         end
 
-        # Remove old satellite
-        project.satellite.destroy
-
         # Apply new namespace id
         project.namespace = new_namespace
         project.save!
@@ -51,9 +48,6 @@ module Projects
         # Move wiki repo also if present
         gitlab_shell.mv_repository("#{old_path}.wiki", "#{new_path}.wiki")
 
-        # Create a new satellite (reload project from DB)
-        Project.find(project.id).ensure_satellite_exists
-
         # clear project cached events
         project.reset_events_cache
 
diff --git a/app/views/admin/application_settings/_form.html.haml b/app/views/admin/application_settings/_form.html.haml
index b67d2116fa4..330b8bbf9d2 100644
--- a/app/views/admin/application_settings/_form.html.haml
+++ b/app/views/admin/application_settings/_form.html.haml
@@ -28,6 +28,20 @@
             = level
         %span.help-block#restricted-visibility-help Selected levels cannot be used by non-admin users for projects or snippets
     .form-group
+      = f.label :import_sources, class: 'control-label col-sm-2'
+      .col-sm-10
+        - data_attrs = { toggle: 'buttons' }
+        .btn-group{ data: data_attrs }
+          - import_sources_checkboxes('import-sources-help').each do |source|
+            = source
+        %span.help-block#import-sources-help
+          Enabled sources for code import during project creation. OmniAuth must be configured for GitHub
+          = link_to "(?)", help_page_path("integration", "github")
+          , Bitbucket
+          = link_to "(?)", help_page_path("integration", "bitbucket")
+          and GitLab.com
+          = link_to "(?)", help_page_path("integration", "gitlab")
+    .form-group
       .col-sm-offset-2.col-sm-10
         .checkbox
           = f.label :version_check_enabled do
diff --git a/app/views/admin/projects/index.html.haml b/app/views/admin/projects/index.html.haml
index f43d46356fa..d9b481404f7 100644
--- a/app/views/admin/projects/index.html.haml
+++ b/app/views/admin/projects/index.html.haml
@@ -23,6 +23,10 @@
             = label_tag :abandoned do
               = check_box_tag :abandoned, 1, params[:abandoned]
               %span No activity over 6 month
+          .checkbox
+            = label_tag :with_archived do
+              = check_box_tag :with_archived, 1, params[:with_archived]
+              %span Show archived projects
 
         %fieldset
           %strong Visibility level:
@@ -73,6 +77,8 @@
                 = visibility_level_icon(project.visibility_level)
               = link_to project.name_with_namespace, [:admin, project.namespace.becomes(Namespace), project]
             .pull-right
+              - if project.archived
+                %span.label.label-warning archived
               %span.label.label-gray
                 = repository_size(project)
               = link_to 'Edit', edit_namespace_project_path(project.namespace, project), id: "edit_#{dom_id(project)}", class: "btn btn-sm"
diff --git a/app/views/dashboard/_groups_head.html.haml b/app/views/dashboard/_groups_head.html.haml
new file mode 100644
index 00000000000..8a397a84e0e
--- /dev/null
+++ b/app/views/dashboard/_groups_head.html.haml
@@ -0,0 +1,7 @@
+%ul.center-top-menu
+  = nav_link(page: [dashboard_groups_path]) do
+    = link_to dashboard_groups_path, title: 'Your groups', data: {placement: 'right'} do
+      Your Groups
+  = nav_link(page: [explore_groups_path]) do
+    = link_to explore_groups_path, title: 'Explore groups', data: {toggle: 'tooltip', placement: 'bottom'} do
+      Explore Groups
diff --git a/app/views/dashboard/_projects_head.html.haml b/app/views/dashboard/_projects_head.html.haml
new file mode 100644
index 00000000000..f7be194c696
--- /dev/null
+++ b/app/views/dashboard/_projects_head.html.haml
@@ -0,0 +1,10 @@
+%ul.center-top-menu
+  = nav_link(path: ['dashboard#show', 'root#show']) do
+    = link_to dashboard_path, title: 'Home', class: 'shortcuts-activity', data: {placement: 'right'} do
+      Your Projects
+  = nav_link(page: starred_dashboard_projects_path) do
+    = link_to starred_dashboard_projects_path, title: 'Starred Projects', data: {placement: 'right'} do
+      Starred Projects
+  = nav_link(page: [explore_root_path, trending_explore_projects_path, starred_explore_projects_path, explore_projects_path]) do
+    = link_to explore_root_path, title: 'Explore', data: {toggle: 'tooltip', placement: 'bottom'} do
+      Explore Projects
diff --git a/app/views/dashboard/groups/index.html.haml b/app/views/dashboard/groups/index.html.haml
index 0a354373b9b..0860fe3c761 100644
--- a/app/views/dashboard/groups/index.html.haml
+++ b/app/views/dashboard/groups/index.html.haml
@@ -1,14 +1,13 @@
 - page_title "Groups"
-%h3.page-title
-  Group Membership
+= render 'dashboard/groups_head'
+
+.slead
+  Group members have access to all group projects.
   - if current_user.can_create_group?
     %span.pull-right.hidden-xs
-      = link_to new_group_path, class: "btn btn-new" do
+      = link_to new_group_path, class: "btn btn-new btn-sm" do
         %i.fa.fa-plus
         New Group
-%p.light
-  Group members have access to all group projects.
-%hr
 .panel.panel-default
   .panel-heading
     %strong Groups
diff --git a/app/views/dashboard/projects/starred.html.haml b/app/views/dashboard/projects/starred.html.haml
index 8aaa0a7f071..98b8cde4766 100644
--- a/app/views/dashboard/projects/starred.html.haml
+++ b/app/views/dashboard/projects/starred.html.haml
@@ -1,4 +1,6 @@
 - page_title "Starred Projects"
+= render 'dashboard/projects_head'
+
 - if @projects.any?
   = render 'shared/show_aside'
 
diff --git a/app/views/dashboard/show.html.haml b/app/views/dashboard/show.html.haml
index 5001c2101e1..a3a32b6932f 100644
--- a/app/views/dashboard/show.html.haml
+++ b/app/views/dashboard/show.html.haml
@@ -2,6 +2,8 @@
   - if current_user
     = auto_discovery_link_tag(:atom, dashboard_url(format: :atom, private_token: current_user.private_token), title: "All activity")
 
+= render 'dashboard/projects_head'
+
 - if @projects.any?
   = render 'shared/show_aside'
 
diff --git a/app/views/explore/groups/index.html.haml b/app/views/explore/groups/index.html.haml
index f3f0b778539..7dcefd330a1 100644
--- a/app/views/explore/groups/index.html.haml
+++ b/app/views/explore/groups/index.html.haml
@@ -1,5 +1,7 @@
 - page_title "Groups"
-.clearfix
+- if current_user
+  = render 'dashboard/groups_head'
+.clearfix.append-bottom-10
   .pull-left
     = form_tag explore_groups_path, method: :get, class: 'form-inline form-tiny' do |f|
       = hidden_field_tag :sort, @sort
@@ -28,15 +30,12 @@
           = link_to explore_groups_path(sort: sort_value_oldest_updated) do
             = sort_title_oldest_updated
 
-%hr
-
 %ul.bordered-list
   - @groups.each do |group|
     %li
       .clearfix
         %h4
           = link_to group_path(id: group.path) do
-            %i.fa.fa-users
             = group.name
       .clearfix
         %p
diff --git a/app/views/explore/projects/_dropdown.html.haml b/app/views/explore/projects/_dropdown.html.haml
new file mode 100644
index 00000000000..b23a3c1e5c1
--- /dev/null
+++ b/app/views/explore/projects/_dropdown.html.haml
@@ -0,0 +1,27 @@
+.dropdown.inline
+  %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
+    %span.light sort:
+    - if @sort.present?
+      = sort_options_hash[@sort]
+    - elsif current_page?(trending_explore_projects_path) || current_page?(explore_root_path)
+      Trending projects
+    - elsif current_page?(starred_explore_projects_path)
+      Most stars
+    - else
+      = sort_title_recently_created
+    %b.caret
+  %ul.dropdown-menu
+    %li
+      = link_to trending_explore_projects_path do
+        Trending projects
+      = link_to starred_explore_projects_path do
+        Most stars
+      = link_to explore_projects_filter_path(sort: sort_value_recently_created) do
+        = sort_title_recently_created
+      = link_to explore_projects_filter_path(sort: sort_value_oldest_created) do
+        = sort_title_oldest_created
+      = link_to explore_projects_filter_path(sort: sort_value_recently_updated) do
+        = sort_title_recently_updated
+      = link_to explore_projects_filter_path(sort: sort_value_oldest_updated) do
+        = sort_title_oldest_updated
+
diff --git a/app/views/explore/projects/_filter.html.haml b/app/views/explore/projects/_filter.html.haml
index 82622a58ed2..4b91291caf4 100644
--- a/app/views/explore/projects/_filter.html.haml
+++ b/app/views/explore/projects/_filter.html.haml
@@ -46,22 +46,4 @@
             = link_to explore_projects_filter_path(tag: tag.name) do
               %i.fa.fa-tag
               = tag.name
-
-  .dropdown.inline
-    %button.dropdown-toggle.btn{type: 'button', 'data-toggle' => 'dropdown'}
-      %span.light sort:
-      - if @sort.present?
-        = sort_options_hash[@sort]
-      - else
-        = sort_title_recently_created
-      %b.caret
-    %ul.dropdown-menu
-      %li
-        = link_to explore_projects_filter_path(sort: sort_value_recently_created) do
-          = sort_title_recently_created
-        = link_to explore_projects_filter_path(sort: sort_value_oldest_created) do
-          = sort_title_oldest_created
-        = link_to explore_projects_filter_path(sort: sort_value_recently_updated) do
-          = sort_title_recently_updated
-        = link_to explore_projects_filter_path(sort: sort_value_oldest_updated) do
-          = sort_title_oldest_updated
+  = render 'explore/projects/dropdown'
diff --git a/app/views/explore/projects/index.html.haml b/app/views/explore/projects/index.html.haml
index ba2276f51ce..4956081e1ed 100644
--- a/app/views/explore/projects/index.html.haml
+++ b/app/views/explore/projects/index.html.haml
@@ -1,8 +1,9 @@
 - page_title "Projects"
+- if current_user
+  = render 'dashboard/projects_head'
 .clearfix
   = render 'filter'
-
-%hr
+%br
 .public-projects
   %ul.bordered-list.top-list
     = render @projects
diff --git a/app/views/explore/projects/starred.html.haml b/app/views/explore/projects/starred.html.haml
index b5d146b1f2f..fdccbe5692f 100644
--- a/app/views/explore/projects/starred.html.haml
+++ b/app/views/explore/projects/starred.html.haml
@@ -1,9 +1,12 @@
 - page_title "Starred Projects"
+- if current_user
+  = render 'dashboard/projects_head'
 .explore-trending-block
-  %p.lead
+  .lead
     %i.fa.fa-star
     See most starred projects
-  %hr
+    .pull-right
+      = render 'explore/projects/dropdown'
   .public-projects
     %ul.bordered-list
       = render @starred_projects
diff --git a/app/views/explore/projects/trending.html.haml b/app/views/explore/projects/trending.html.haml
index 5e24df76a63..98a4174b426 100644
--- a/app/views/explore/projects/trending.html.haml
+++ b/app/views/explore/projects/trending.html.haml
@@ -1,4 +1,6 @@
 - page_title "Trending Projects"
+- if current_user
+  = render 'dashboard/projects_head'
 .explore-title
   %h3
     Explore GitLab
@@ -6,10 +8,11 @@
     Discover projects and groups. Share your projects with others
 %hr
 .explore-trending-block
-  %p.lead
+  .lead
     %i.fa.fa-comments-o
     See most discussed projects for last month
-  %hr
+    .pull-right
+      = render 'explore/projects/dropdown'
   .public-projects
     %ul.bordered-list
       = render @trending_projects
diff --git a/app/views/groups/projects.html.haml b/app/views/groups/projects.html.haml
index 6b7efa83dea..d06cfa7ff9f 100644
--- a/app/views/groups/projects.html.haml
+++ b/app/views/groups/projects.html.haml
@@ -12,11 +12,14 @@
     - @projects.each do |project|
       %li
         .list-item-name
-          = visibility_level_icon(project.visibility_level)
+          %span{ class: visibility_level_color(project.visibility_level) }
+            = visibility_level_icon(project.visibility_level)
           %strong= link_to project.name_with_namespace, project
+        .pull-right
+          - if project.archived
+            %span.label.label-warning archived
           %span.label.label-gray
             = repository_size(project)
-        .pull-right
           = link_to 'Members', namespace_project_project_members_path(project.namespace, project), id: "edit_#{dom_id(project)}", class: "btn btn-sm"
           = link_to 'Edit', edit_namespace_project_path(project.namespace, project), id: "edit_#{dom_id(project)}", class: "btn btn-sm"
           = link_to 'Remove', project, data: { confirm: remove_project_message(project)}, method: :delete, class: "btn btn-sm btn-remove"
diff --git a/app/views/layouts/explore.html.haml b/app/views/layouts/explore.html.haml
index 56bb92a536e..17fee9c510d 100644
--- a/app/views/layouts/explore.html.haml
+++ b/app/views/layouts/explore.html.haml
@@ -1,5 +1,8 @@
 - page_title    "Explore"
-- header_title  "Explore GitLab", explore_root_path
-- sidebar       "explore"
+- if current_user
+  - header_title  "Dashboard", root_path
+- else
+  - header_title  "Explore GitLab", explore_root_path
+- sidebar       "dashboard"
 
 = render template: "layouts/application"
diff --git a/app/views/layouts/header/_default.html.haml b/app/views/layouts/header/_default.html.haml
index b3cd7b0e37b..12ddbe6f1b7 100644
--- a/app/views/layouts/header/_default.html.haml
+++ b/app/views/layouts/header/_default.html.haml
@@ -17,13 +17,13 @@
           %li.visible-sm.visible-xs
             = link_to search_path, title: 'Search', data: {toggle: 'tooltip', placement: 'bottom'} do
               = icon('search')
-          %li.hidden-xs
+          -#%li.hidden-xs
             = link_to help_path, title: 'Help', data: {toggle: 'tooltip', placement: 'bottom'} do
               = icon('question-circle fw')
-          %li
+          -#%li
             = link_to explore_root_path, title: 'Explore', data: {toggle: 'tooltip', placement: 'bottom'} do
               = icon('globe fw')
-          %li
+          -#%li
             = link_to user_snippets_path(current_user), title: 'Your snippets', data: {toggle: 'tooltip', placement: 'bottom'} do
               = icon('clipboard fw')
           - if current_user.is_admin?
@@ -34,7 +34,7 @@
             %li.hidden-xs
               = link_to new_project_path, title: 'New project', data: {toggle: 'tooltip', placement: 'bottom'} do
                 = icon('plus fw')
-          %li
+          -#%li
             = link_to profile_path, title: 'Profile settings', data: {toggle: 'tooltip', placement: 'bottom'} do
               = icon('cog fw')
           %li
diff --git a/app/views/layouts/nav/_dashboard.html.haml b/app/views/layouts/nav/_dashboard.html.haml
index 687c1fc3dd2..8f010196d1a 100644
--- a/app/views/layouts/nav/_dashboard.html.haml
+++ b/app/views/layouts/nav/_dashboard.html.haml
@@ -1,36 +1,43 @@
 %ul.nav.nav-sidebar
-  = nav_link(path: ['dashboard#show', 'root#show'], html_options: {class: 'home'}) do
-    = link_to dashboard_path, title: 'Home', class: 'shortcuts-activity', data: {placement: 'right'} do
+  = nav_link(path: ['dashboard#show', 'root#show', 'projects#trending', 'projects#starred', 'projects#index'], html_options: {class: 'home'}) do
+    = link_to (current_user ? root_path : explore_root_path), title: 'Home', class: 'shortcuts-activity', data: {placement: 'right'} do
       = icon('dashboard fw')
       %span
-        Your Projects
-  = nav_link(path: 'projects#starred') do
-    = link_to starred_dashboard_projects_path, title: 'Starred Projects', data: {placement: 'right'} do
-      = icon('star fw')
-      %span
-        Starred Projects
+        Projects
   = nav_link(controller: :groups) do
-    = link_to dashboard_groups_path, title: 'Groups', data: {placement: 'right'} do
+    = link_to (current_user ? dashboard_groups_path : explore_groups_path), title: 'Groups', data: {placement: 'right'} do
       = icon('group fw')
       %span
         Groups
-  = nav_link(controller: :milestones) do
-    = link_to dashboard_milestones_path, title: 'Milestones', data: {placement: 'right'} do
-      = icon('clock-o fw')
-      %span
-        Milestones
-  = nav_link(path: 'dashboard#issues') do
-    = link_to assigned_issues_dashboard_path, title: 'Issues', class: 'shortcuts-issues', data: {placement: 'right'} do
-      = icon('exclamation-circle fw')
-      %span
-        Issues
-        %span.count= current_user.assigned_issues.opened.count
-  = nav_link(path: 'dashboard#merge_requests') do
-    = link_to assigned_mrs_dashboard_path, title: 'Merge Requests', class: 'shortcuts-merge_requests', data: {placement: 'right'} do
-      = icon('tasks fw')
+  - if current_user
+    = nav_link(controller: :milestones) do
+      = link_to dashboard_milestones_path, title: 'Milestones', data: {placement: 'right'} do
+        = icon('clock-o fw')
+        %span
+          Milestones
+    = nav_link(path: 'dashboard#issues') do
+      = link_to assigned_issues_dashboard_path, title: 'Issues', class: 'shortcuts-issues', data: {placement: 'right'} do
+        = icon('exclamation-circle fw')
+        %span
+          Issues
+          %span.count= current_user.assigned_issues.opened.count
+    = nav_link(path: 'dashboard#merge_requests') do
+      = link_to assigned_mrs_dashboard_path, title: 'Merge Requests', class: 'shortcuts-merge_requests', data: {placement: 'right'} do
+        = icon('tasks fw')
+        %span
+          Merge Requests
+          %span.count= current_user.assigned_merge_requests.opened.count
+  = nav_link(controller: :snippets) do
+    = link_to (current_user ? user_snippets_path(current_user) : snippets_path), title: 'Your snippets', data: {placement: 'right'} do
+      = icon('dashboard fw')
       %span
-        Merge Requests
-        %span.count= current_user.assigned_merge_requests.opened.count
+        Snippets
+  - if current_user
+    = nav_link(controller: :profile) do
+      = link_to profile_path, title: 'Profile settings', data: {toggle: 'tooltip', placement: 'bottom'} do
+        = icon('user fw')
+        %span
+          Profile
   = nav_link(controller: :help) do
     = link_to help_path, title: 'Help', data: {placement: 'right'} do
       = icon('question-circle fw')
diff --git a/app/views/layouts/nav/_explore.html.haml b/app/views/layouts/nav/_explore.html.haml
deleted file mode 100644
index 66870e84ceb..00000000000
--- a/app/views/layouts/nav/_explore.html.haml
+++ /dev/null
@@ -1,18 +0,0 @@
-%ul.nav.nav-sidebar
-  = nav_link(path: 'projects#trending') do
-    = link_to explore_root_path, title: 'Trending Projects', data: {placement: 'right'} do
-      = icon('comments fw')
-      %span Trending Projects
-  = nav_link(path: 'projects#starred') do
-    = link_to starred_explore_projects_path, title: 'Most-starred Projects', data: {placement: 'right'} do
-      = icon('star fw')
-      %span Most-starred Projects
-  = nav_link(path: 'projects#index') do
-    = link_to explore_projects_path, title: 'All Projects', data: {placement: 'right'} do
-      = icon('bookmark fw')
-      %span All Projects
-  = nav_link(controller: :groups) do
-    = link_to explore_groups_path, title: 'All Groups', data: {placement: 'right'} do
-      = icon('group fw')
-      %span All Groups
-
diff --git a/app/views/layouts/nav/_snippets.html.haml b/app/views/layouts/nav/_snippets.html.haml
deleted file mode 100644
index 458b76a2c99..00000000000
--- a/app/views/layouts/nav/_snippets.html.haml
+++ /dev/null
@@ -1,12 +0,0 @@
-%ul.nav.nav-sidebar
-  - if current_user
-    = nav_link(path: user_snippets_path(current_user), html_options: {class: 'home'}) do
-      = link_to user_snippets_path(current_user), title: 'Your snippets', data: {placement: 'right'} do
-        = icon('dashboard fw')
-        %span
-          Your Snippets
-  = nav_link(path: snippets_path) do
-    = link_to snippets_path, title: 'Discover snippets', data: {placement: 'right'} do
-      = icon('globe fw')
-      %span
-        Discover Snippets
diff --git a/app/views/layouts/snippets.html.haml b/app/views/layouts/snippets.html.haml
index 9b0f40073ab..b77fe09fc2a 100644
--- a/app/views/layouts/snippets.html.haml
+++ b/app/views/layouts/snippets.html.haml
@@ -1,5 +1,8 @@
 - page_title    'Snippets'
-- header_title  'Snippets', snippets_path
-- sidebar       "snippets"
+- if current_user
+  - header_title  "Dashboard", root_path
+- else
+  - header_title  'Snippets', snippets_path
+- sidebar       "dashboard"
 
 = render template: "layouts/application"
diff --git a/app/views/profiles/two_factor_auths/_codes.html.haml b/app/views/profiles/two_factor_auths/_codes.html.haml
index 1b1395eaa17..43b58be7f98 100644
--- a/app/views/profiles/two_factor_auths/_codes.html.haml
+++ b/app/views/profiles/two_factor_auths/_codes.html.haml
@@ -1,6 +1,8 @@
 %p.slead
   Should you ever lose your phone, each of these recovery codes can be used one
-  time each to regain access to your account. Please save them in a safe place.
+  time each to regain access to your account. Please save them in a safe place, or you
+  %b will
+  lose access to your account.
 
 .codes.well
   %ul
diff --git a/app/views/projects/_bitbucket_import_modal.html.haml b/app/views/projects/_bitbucket_import_modal.html.haml
index 745163e79a7..2987f6b5b22 100644
--- a/app/views/projects/_bitbucket_import_modal.html.haml
+++ b/app/views/projects/_bitbucket_import_modal.html.haml
@@ -5,9 +5,9 @@
         %a.close{href: "#", "data-dismiss" => "modal"} ×
         %h3 Import projects from Bitbucket
       .modal-body
-        To enable importing projects from Bitbucket, 
+        To enable importing projects from Bitbucket,
         - if current_user.admin?
-          you need to
+          as administrator you need to configure
         - else
-          your GitLab administrator needs to
-        == #{link_to 'setup OAuth integration', 'https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/integration/bitbucket.md'}.
+          ask your GitLab administrator to configure
+        == #{link_to 'OAuth integration', help_page_path("integration", "bitbucket")}.
diff --git a/app/views/projects/_github_import_modal.html.haml b/app/views/projects/_github_import_modal.html.haml
index de58b27df23..46ad1559356 100644
--- a/app/views/projects/_github_import_modal.html.haml
+++ b/app/views/projects/_github_import_modal.html.haml
@@ -5,9 +5,9 @@
         %a.close{href: "#", "data-dismiss" => "modal"} ×
         %h3 Import projects from GitHub
       .modal-body
-        To enable importing projects from GitHub, 
+        To enable importing projects from GitHub,
         - if current_user.admin?
-          you need to
+          as administrator you need to configure
         - else
-          your GitLab administrator needs to
-        == #{link_to 'setup OAuth integration', 'https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/integration/github.md'}.
\ No newline at end of file
+          ask your Gitlab administrator to configure
+        == #{link_to 'OAuth integration', help_page_path("integration", "github")}.
diff --git a/app/views/projects/_gitlab_import_modal.html.haml b/app/views/projects/_gitlab_import_modal.html.haml
index ae6c25f9371..377cf0187b8 100644
--- a/app/views/projects/_gitlab_import_modal.html.haml
+++ b/app/views/projects/_gitlab_import_modal.html.haml
@@ -5,9 +5,9 @@
         %a.close{href: "#", "data-dismiss" => "modal"} ×
         %h3 Import projects from GitLab.com
       .modal-body
-        To enable importing projects from GitLab.com, 
+        To enable importing projects from GitLab.com,
         - if current_user.admin?
-          you need to
+          as administrator you need to configure
         - else
-          your GitLab administrator needs to
-        == #{link_to 'setup OAuth integration', 'https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/integration/gitlab.md'}.
\ No newline at end of file
+          ask your GitLab administrator to configure
+        == #{link_to 'OAuth integration', help_page_path("integration", "gitlab")}.
diff --git a/app/views/projects/blob/_editor.html.haml b/app/views/projects/blob/_editor.html.haml
index 96f188e4aa7..9c3e1703c89 100644
--- a/app/views/projects/blob/_editor.html.haml
+++ b/app/views/projects/blob/_editor.html.haml
@@ -12,8 +12,8 @@
         \/
         = text_field_tag 'file_name', params[:file_name], placeholder: "File name",
           required: true, class: 'form-control new-file-name'
-        .pull-right
-          = select_tag :encoding, options_for_select([ "base64", "text" ], "text"), class: 'form-control'
+      .pull-right
+        = select_tag :encoding, options_for_select([ "base64", "text" ], "text"), class: 'form-control'
 
   .file-content.code
     %pre.js-edit-mode-pane#editor
diff --git a/app/views/projects/blob/new.html.haml b/app/views/projects/blob/new.html.haml
index dac984f8c31..7c2a4fece94 100644
--- a/app/views/projects/blob/new.html.haml
+++ b/app/views/projects/blob/new.html.haml
@@ -6,11 +6,12 @@
     = render 'shared/commit_message_container', params: params,
              placeholder: 'Add new file'
 
-    .form-group.branch
-      = label_tag 'branch', class: 'control-label' do
-        Branch
-      .col-sm-10
-        = text_field_tag 'new_branch', @ref, class: "form-control"
+    - unless @project.empty_repo?
+      .form-group.branch
+        = label_tag 'branch', class: 'control-label' do
+          Branch
+        .col-sm-10
+          = text_field_tag 'new_branch', @ref, class: "form-control"
 
     = hidden_field_tag 'content', '', id: 'file-content'
     = render 'projects/commit_button', ref: @ref,
diff --git a/app/views/projects/merge_requests/_new_compare.html.haml b/app/views/projects/merge_requests/_new_compare.html.haml
index ff9c0cdb283..7709330611a 100644
--- a/app/views/projects/merge_requests/_new_compare.html.haml
+++ b/app/views/projects/merge_requests/_new_compare.html.haml
@@ -35,7 +35,7 @@
     - if @merge_request.compare_failed
       .alert.alert-danger
         %h4 Compare failed
-        %p We can't compare selected branches. It may be because of huge diff or satellite timeout. Please try again or select different branches.
+        %p We can't compare selected branches. It may be because of huge diff. Please try again or select different branches.
     - else
       .light-well
         .center
diff --git a/app/views/projects/merge_requests/_new_submit.html.haml b/app/views/projects/merge_requests/_new_submit.html.haml
index 633a54f3620..76f44211dac 100644
--- a/app/views/projects/merge_requests/_new_submit.html.haml
+++ b/app/views/projects/merge_requests/_new_submit.html.haml
@@ -24,7 +24,7 @@
         = icon('history')
         Commits
         %span.badge= @commits.size
-    %li.diffs-tab
+    %li.diffs-tab.active
       = link_to url_for(params), data: {target: '#diffs', action: 'diffs', toggle: 'tab'} do
         = icon('list-alt')
         Changes
@@ -33,7 +33,7 @@
   .tab-content
     #commits.commits.tab-pane
       = render "projects/commits/commits", project: @project
-    #diffs.diffs.tab-pane
+    #diffs.diffs.tab-pane.active
       - if @diffs.present?
         = render "projects/diffs/diffs", diffs: @diffs, project: @project
       - elsif @commits.size > MergeRequestDiff::COMMITS_SAFE_SIZE
diff --git a/app/views/projects/merge_requests/automerge.js.haml b/app/views/projects/merge_requests/merge.js.haml
index 33321651e32..33321651e32 100644
--- a/app/views/projects/merge_requests/automerge.js.haml
+++ b/app/views/projects/merge_requests/merge.js.haml
diff --git a/app/views/projects/merge_requests/show/_commits.html.haml b/app/views/projects/merge_requests/show/_commits.html.haml
index 3b7f283daf0..a71b181a6a5 100644
--- a/app/views/projects/merge_requests/show/_commits.html.haml
+++ b/app/views/projects/merge_requests/show/_commits.html.haml
@@ -1 +1 @@
-= render "projects/commits/commits", project: @merge_request.source_project
+= render "projects/commits/commits", project: @merge_request.project
diff --git a/app/views/projects/merge_requests/show/_diffs.html.haml b/app/views/projects/merge_requests/show/_diffs.html.haml
index 786b5f39063..626970f39be 100644
--- a/app/views/projects/merge_requests/show/_diffs.html.haml
+++ b/app/views/projects/merge_requests/show/_diffs.html.haml
@@ -1,5 +1,5 @@
 - if @merge_request_diff.collected?
-  = render "projects/diffs/diffs", diffs: @merge_request.diffs, project: @merge_request.source_project
+  = render "projects/diffs/diffs", diffs: @merge_request.diffs, project: @merge_request.project
 - elsif @merge_request_diff.empty?
   .nothing-here-block Nothing to merge from #{@merge_request.source_branch} into #{@merge_request.target_branch}
 - else
diff --git a/app/views/projects/merge_requests/widget/_open.html.haml b/app/views/projects/merge_requests/widget/_open.html.haml
index 8c61e819374..0aad9bb3e88 100644
--- a/app/views/projects/merge_requests/widget/_open.html.haml
+++ b/app/views/projects/merge_requests/widget/_open.html.haml
@@ -3,8 +3,6 @@
   .mr-widget-body
     - if @project.archived?
       = render 'projects/merge_requests/widget/open/archived'
-    - elsif !@project.satellite.exists?
-      = render 'projects/merge_requests/widget/open/no_satellite'
     - elsif @merge_request.commits.blank?
       = render 'projects/merge_requests/widget/open/nothing'
     - elsif @merge_request.branch_missing?
diff --git a/app/views/projects/merge_requests/widget/_show.html.haml b/app/views/projects/merge_requests/widget/_show.html.haml
index 263cab7a9e8..a489d4f9b24 100644
--- a/app/views/projects/merge_requests/widget/_show.html.haml
+++ b/app/views/projects/merge_requests/widget/_show.html.haml
@@ -11,10 +11,10 @@
   var merge_request_widget;
 
   merge_request_widget = new MergeRequestWidget({
-    url_to_automerge_check: "#{automerge_check_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
+    url_to_automerge_check: "#{merge_check_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
     check_enable: #{@merge_request.unchecked? ? "true" : "false"},
     url_to_ci_check: "#{ci_status_namespace_project_merge_request_path(@project.namespace, @project, @merge_request)}",
     ci_enable: #{@project.ci_service ? "true" : "false"},
-    current_status: "#{@merge_request.automerge_status}",
+    current_status: "#{@merge_request.gitlab_merge_status}",
   });
 
diff --git a/app/views/projects/merge_requests/widget/open/_accept.html.haml b/app/views/projects/merge_requests/widget/open/_accept.html.haml
index df20205de1c..b61e193fc42 100644
--- a/app/views/projects/merge_requests/widget/open/_accept.html.haml
+++ b/app/views/projects/merge_requests/widget/open/_accept.html.haml
@@ -1,4 +1,4 @@
-= form_for [:automerge, @project.namespace.becomes(Namespace), @project, @merge_request], remote: true, method: :post, html: { class: 'accept-mr-form js-requires-input' } do |f|
+= form_for [:merge, @project.namespace.becomes(Namespace), @project, @merge_request], remote: true, method: :post, html: { class: 'accept-mr-form js-requires-input' } do |f|
   = hidden_field_tag :authenticity_token, form_authenticity_token
   .accept-merge-holder.clearfix.js-toggle-container
     .accept-action
diff --git a/app/views/projects/merge_requests/widget/open/_no_satellite.html.haml b/app/views/projects/merge_requests/widget/open/_no_satellite.html.haml
deleted file mode 100644
index 3718cfd8333..00000000000
--- a/app/views/projects/merge_requests/widget/open/_no_satellite.html.haml
+++ /dev/null
@@ -1,3 +0,0 @@
-%p
-  %span
-    %strong This repository does not have a satellite. Please ask an administrator to fix this issue!
diff --git a/app/views/projects/new.html.haml b/app/views/projects/new.html.haml
index d25fe68242b..636218368cc 100644
--- a/app/views/projects/new.html.haml
+++ b/app/views/projects/new.html.haml
@@ -22,70 +22,75 @@
           .col-sm-10
             = f.select :namespace_id, namespaces_options(params[:namespace_id] || :current_user), {}, {class: 'select2', tabindex: 2}
 
-      %hr
+      - if import_sources_enabled?
+        %hr
 
-      .project-import.js-toggle-container
-        .form-group
-          %label.control-label Import project from
-          .col-sm-10
-            - if github_import_enabled?
-              = link_to status_import_github_path, class: 'btn' do
-                %i.fa.fa-github
-                GitHub
-            - else
-              = link_to '#', class: 'how_to_import_link light btn' do
-                %i.fa.fa-github
-                GitHub
-              = render 'github_import_modal'
-
-
-            - if bitbucket_import_enabled?
-              = link_to status_import_bitbucket_path, class: 'btn', "data-no-turbolink" => "true" do
-                %i.fa.fa-bitbucket
-                Bitbucket
-            - else
-              = link_to '#', class: 'how_to_import_link light btn' do
-                %i.fa.fa-bitbucket
-                Bitbucket
-              = render 'bitbucket_import_modal'
-
-            - unless request.host == 'gitlab.com'
-              - if gitlab_import_enabled?
-                = link_to status_import_gitlab_path, class: 'btn' do
-                  %i.fa.fa-heart
-                  GitLab.com
-              - else
-                = link_to '#', class: 'how_to_import_link light btn' do
-                  %i.fa.fa-heart
-                  GitLab.com
-                = render 'gitlab_import_modal'
-
-            = link_to new_import_gitorious_path, class: 'btn' do
-              %i.icon-gitorious.icon-gitorious-small
-              Gitorious.org
-
-            = link_to new_import_google_code_path, class: 'btn' do
-              %i.fa.fa-google
-              Google Code
-
-            = link_to "#", class: 'btn js-toggle-button' do
-              %i.fa.fa-git
-              %span Any repo by URL
-
-        .js-toggle-content.hide
-          .form-group.import-url-data
-            = f.label :import_url, class: 'control-label' do
-              %span Git repository URL
+        .project-import.js-toggle-container
+          .form-group
+            %label.control-label Import project from
             .col-sm-10
-              = f.text_field :import_url, class: 'form-control', placeholder: 'https://username:password@gitlab.company.com/group/project.git'
-              .well.prepend-top-20
-                %ul
-                  %li
-                    The repository must be accessible over HTTP(S). If it is not publicly accessible, you can add authentication information to the URL: <code>https://username:password@gitlab.company.com/group/project.git</code>.
-                  %li
-                    The import will time out after 4 minutes. For big repositories, use a clone/push combination.
-                  %li
-                    To migrate an SVN repository, check out #{link_to "this document", "http://doc.gitlab.com/ce/workflow/importing/migrating_from_svn.html"}.
+              - if github_import_enabled?
+                - if github_import_configured?
+                  = link_to status_import_github_path, class: 'btn import_github' do
+                    %i.fa.fa-github
+                    GitHub
+                - else
+                  = link_to '#', class: 'how_to_import_link light btn import_github' do
+                    %i.fa.fa-github
+                    GitHub
+                  = render 'github_import_modal'
+
+              - if bitbucket_import_enabled?
+                - if bitbucket_import_configured?
+                  = link_to status_import_bitbucket_path, class: 'btn import_bitbucket', "data-no-turbolink" => "true" do
+                    %i.fa.fa-bitbucket
+                    Bitbucket
+                - else
+                  = link_to status_import_bitbucket_path, class: 'how_to_import_link light btn import_bitbucket', "data-no-turbolink" => "true" do
+                    %i.fa.fa-bitbucket
+                    Bitbucket
+                  = render 'bitbucket_import_modal'
+
+              - if gitlab_import_enabled?
+                - if gitlab_import_configured?
+                  = link_to status_import_gitlab_path, class: 'btn import_gitlab' do
+                    %i.fa.fa-heart
+                    GitLab.com
+                - else
+                  = link_to status_import_gitlab_path, class: 'how_to_import_link light btn import_gitlab' do
+                    %i.fa.fa-heart
+                    GitLab.com
+                  = render 'gitlab_import_modal'
+
+              - if gitorious_import_enabled?
+                = link_to new_import_gitorious_path, class: 'btn import_gitorious' do
+                  %i.icon-gitorious.icon-gitorious-small
+                  Gitorious.org
+
+              - if google_code_import_enabled?
+                = link_to new_import_google_code_path, class: 'btn import_google_code' do
+                  %i.fa.fa-google
+                  Google Code
+
+              - if git_import_enabled?
+                = link_to "#", class: 'btn js-toggle-button import_git' do
+                  %i.fa.fa-git
+                  %span Any repo by URL
+
+          .js-toggle-content.hide
+            .form-group.import-url-data
+              = f.label :import_url, class: 'control-label' do
+                %span Git repository URL
+              .col-sm-10
+                = f.text_field :import_url, class: 'form-control', placeholder: 'https://username:password@gitlab.company.com/group/project.git'
+                .well.prepend-top-20
+                  %ul
+                    %li
+                      The repository must be accessible over HTTP(S). If it is not publicly accessible, you can add authentication information to the URL: <code>https://username:password@gitlab.company.com/group/project.git</code>.
+                    %li
+                      The import will time out after 4 minutes. For big repositories, use a clone/push combination.
+                    %li
+                      To migrate an SVN repository, check out #{link_to "this document", "http://doc.gitlab.com/ce/workflow/importing/migrating_from_svn.html"}.
 
       %hr.prepend-botton-10
 
diff --git a/app/views/snippets/_head.html.haml b/app/views/snippets/_head.html.haml
new file mode 100644
index 00000000000..0adf6b91f2c
--- /dev/null
+++ b/app/views/snippets/_head.html.haml
@@ -0,0 +1,7 @@
+%ul.center-top-menu
+  = nav_link(page: user_snippets_path(current_user), html_options: {class: 'home'}) do
+    = link_to user_snippets_path(current_user), title: 'Your snippets', data: {placement: 'right'} do
+      Your Snippets
+  = nav_link(page: snippets_path) do
+    = link_to snippets_path, title: 'Explore snippets', data: {placement: 'right'} do
+      Explore Snippets
diff --git a/app/views/snippets/current_user_index.html.haml b/app/views/snippets/current_user_index.html.haml
index 0718f743828..62a967a2e06 100644
--- a/app/views/snippets/current_user_index.html.haml
+++ b/app/views/snippets/current_user_index.html.haml
@@ -1,13 +1,13 @@
 - page_title "Your Snippets"
-%h3.page-title
-  Your Snippets
-  .pull-right
-    = link_to new_snippet_path, class: "btn btn-new btn-grouped", title: "New Snippet" do
-      Add new snippet
+= render 'head'
 
-%p.light
+.slead
   Share code pastes with others out of git repository
 
+  .pull-right
+    = link_to new_snippet_path, class: "btn btn-new btn-sm", title: "New Snippet" do
+      Add new snippet
+
 %ul.nav.nav-tabs
   = nav_tab :scope, nil do
     = link_to user_snippets_path(@user) do
diff --git a/app/views/snippets/index.html.haml b/app/views/snippets/index.html.haml
index e9bb6a908d3..8608815e0a6 100644
--- a/app/views/snippets/index.html.haml
+++ b/app/views/snippets/index.html.haml
@@ -1,17 +1,9 @@
 - page_title "Public Snippets"
-%h3.page-title
-  Public snippets
+- if current_user
+  = render 'head'
 
-  .pull-right
-    - if current_user
-      = link_to new_snippet_path, class: "btn btn-new btn-grouped", title: "New Snippet" do
-        Add new snippet
-      = link_to user_snippets_path(current_user), class: "btn btn-grouped"  do
-        Your snippets
-
-%p.light
+.slead
   Public snippets created by you and other users are listed here
 
-%hr
 = render 'snippets'
 
diff --git a/app/views/snippets/show.html.haml b/app/views/snippets/show.html.haml
index 089e8122918..aed00f9caeb 100644
--- a/app/views/snippets/show.html.haml
+++ b/app/views/snippets/show.html.haml
@@ -1,5 +1,5 @@
 - page_title @snippet.title, "Snippets"
-%h3.page-title
+%h4.page-title
   = @snippet.title
 
   - if @snippet.private?
@@ -8,17 +8,14 @@
       private
 
   .pull-right
-    = link_to new_snippet_path, class: "btn btn-new", title: "New Snippet" do
+    = link_to new_snippet_path, class: "btn btn-new btn-sm", title: "New Snippet" do
       Add new snippet
-%hr
 
-.append-bottom-20
+.append-bottom-10.prepend-top-10
   .pull-right
-    = "##{@snippet.id}"
     %span.light
-      by
+      created by
       = link_to user_snippets_path(@snippet.author) do
-        = image_tag avatar_icon(@snippet.author_email), class: "avatar avatar-inline s16", alt: ''
         = @snippet.author_name
 
   .back-link
@@ -27,7 +24,7 @@
         &larr; your snippets
     - else
       = link_to snippets_path do
-        &larr; discover snippets
+        &larr; explore snippets
 
 .file-holder
   .file-title
diff --git a/app/views/snippets/user_index.html.haml b/app/views/snippets/user_index.html.haml
index 23700eb39da..7af5352da34 100644
--- a/app/views/snippets/user_index.html.haml
+++ b/app/views/snippets/user_index.html.haml
@@ -1,14 +1,13 @@
 - page_title "Snippets", @user.name
-%h3.page-title
-  = image_tag avatar_icon(@user.email), class: "avatar s24"
-  = @user.name
-  %span
-    \/
-    Snippets
-  - if current_user
-    = link_to new_snippet_path, class: "btn btn-sm add_new pull-right", title: "New Snippet" do
-      Add new snippet
 
-%hr
+%ol.breadcrumb
+  %li
+    = link_to snippets_path do
+      Snippets
+  %li
+    = @user.name
+  .pull-right.hidden-xs
+    = link_to user_path(@user) do
+      #{@user.name} profile page
 
 = render 'snippets'
diff --git a/app/workers/auto_merge_worker.rb b/app/workers/auto_merge_worker.rb
deleted file mode 100644
index a6dd73eee5f..00000000000
--- a/app/workers/auto_merge_worker.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-class AutoMergeWorker
-  include Sidekiq::Worker
-
-  sidekiq_options queue: :default
-
-  def perform(merge_request_id, current_user_id, params)
-    params = params.with_indifferent_access
-    current_user = User.find(current_user_id)
-    merge_request = MergeRequest.find(merge_request_id)
-    merge_request.should_remove_source_branch = params[:should_remove_source_branch]
-    merge_request.automerge!(current_user, params[:commit_message])
-  end
-end
diff --git a/app/workers/merge_worker.rb b/app/workers/merge_worker.rb
new file mode 100644
index 00000000000..6a8665c179a
--- /dev/null
+++ b/app/workers/merge_worker.rb
@@ -0,0 +1,19 @@
+class MergeWorker
+  include Sidekiq::Worker
+
+  sidekiq_options queue: :default
+
+  def perform(merge_request_id, current_user_id, params)
+    params = params.with_indifferent_access
+    current_user = User.find(current_user_id)
+    merge_request = MergeRequest.find(merge_request_id)
+
+    result = MergeRequests::MergeService.new(merge_request.target_project, current_user).
+      execute(merge_request, params[:commit_message])
+
+    if result[:status] == :success && params[:should_remove_source_branch].present?
+      DeleteBranchService.new(merge_request.source_project, current_user).
+        execute(merge_request.source_branch)
+    end
+  end
+end
diff --git a/app/workers/repository_import_worker.rb b/app/workers/repository_import_worker.rb
index 94832872d13..b546f8777e1 100644
--- a/app/workers/repository_import_worker.rb
+++ b/app/workers/repository_import_worker.rb
@@ -27,7 +27,6 @@ class RepositoryImportWorker
 
     project.import_finish
     project.save
-    project.satellite.create unless project.satellite.exists?
     ProjectCacheWorker.perform_async(project.id)
     Gitlab::BitbucketImport::KeyDeleter.new(project).execute if project.import_type == 'bitbucket'
   end