Merge branch 'master' into ph-inline-js

GITALY_SERVER_VERSION

-0.23.0
+0.25.0

Gemfile

@@ -15,7 +15,7 @@ gem 'default_value_for', '~> 3.0.0'
 gem 'mysql2', '~> 0.4.5', group: :mysql
 gem 'pg', '~> 0.18.2', group: :postgres
 
-gem 'rugged', '~> 0.25.1.1'
+gem 'rugged', '~> 0.26.0'
 gem 'grape-route-helpers', '~> 2.0.0'
 
 gem 'faraday', '~> 0.12'
@@ -58,6 +58,9 @@ gem 'validates_hostname', '~> 1.0.6'
 # Browser detection
 gem 'browser', '~> 2.2'
 
+# GPG
+gem 'gpgme'
+
 # LDAP Auth
 # GitLab fork with several improvements to original library. For full list of changes
 # see https://github.com/intridea/omniauth-ldap/compare/master...gitlabhq:master
@@ -286,7 +289,7 @@ group :metrics do
   gem 'influxdb', '~> 0.2', require: false
 
   # Prometheus
-  gem 'prometheus-client-mmap', '~>0.7.0.beta9'
+  gem 'prometheus-client-mmap', '~>0.7.0.beta11'
   gem 'raindrops', '~> 0.18'
 end
 
@@ -388,7 +391,7 @@ gem 'vmstat', '~> 2.3.0'
 gem 'sys-filesystem', '~> 1.1.6'
 
 # Gitaly GRPC client
-gem 'gitaly', '~> 0.18.0'
+gem 'gitaly', '~> 0.21.0'
 
 gem 'toml-rb', '~> 0.3.15', require: false
 

Gemfile.lock

@@ -269,7 +269,7 @@ GEM
       po_to_json (>= 1.0.0)
       rails (>= 3.2.0)
     gherkin-ruby (0.3.2)
-    gitaly (0.18.0)
+    gitaly (0.21.0)
       google-protobuf (~> 3.1)
       grpc (~> 1.0)
     github-linguist (4.7.6)
@@ -332,6 +332,8 @@ GEM
       multi_json (~> 1.11)
       os (~> 0.9)
       signet (~> 0.7)
+    gpgme (2.0.13)
+      mini_portile2 (~> 2.1)
     grape (0.19.2)
       activesupport
       builder
@@ -595,7 +597,7 @@ GEM
     premailer-rails (1.9.7)
       actionmailer (>= 3, < 6)
       premailer (~> 1.7, >= 1.7.9)
-    prometheus-client-mmap (0.7.0.beta10)
+    prometheus-client-mmap (0.7.0.beta11)
       mmap2 (~> 2.2, >= 2.2.7)
     pry (0.10.4)
       coderay (~> 1.1.0)
@@ -749,7 +751,7 @@ GEM
     rubyzip (1.2.1)
     rufus-scheduler (3.4.0)
       et-orbi (~> 1.0)
-    rugged (0.25.1.1)
+    rugged (0.26.0)
     safe_yaml (1.0.4)
     sanitize (2.1.0)
       nokogiri (>= 1.4.4)
@@ -974,7 +976,7 @@ DEPENDENCIES
   gettext (~> 3.2.2)
   gettext_i18n_rails (~> 1.8.0)
   gettext_i18n_rails_js (~> 1.2.0)
-  gitaly (~> 0.18.0)
+  gitaly (~> 0.21.0)
   github-linguist (~> 4.7.0)
   gitlab-flowdock-git-hook (~> 1.0.1)
   gitlab-markup (~> 1.5.1)
@@ -983,6 +985,7 @@ DEPENDENCIES
   gollum-rugged_adapter (~> 0.4.4)
   gon (~> 6.1.0)
   google-api-client (~> 0.8.6)
+  gpgme
   grape (~> 0.19.2)
   grape-entity (~> 0.6.0)
   grape-route-helpers (~> 2.0.0)
@@ -1047,7 +1050,7 @@ DEPENDENCIES
   pg (~> 0.18.2)
   poltergeist (~> 1.9.0)
   premailer-rails (~> 1.9.7)
-  prometheus-client-mmap (~> 0.7.0.beta9)
+  prometheus-client-mmap (~> 0.7.0.beta11)
   pry-byebug (~> 3.4.1)
   pry-rails (~> 0.3.4)
   rack-attack (~> 4.4.1)
@@ -1081,7 +1084,7 @@ DEPENDENCIES
   ruby-prof (~> 0.16.2)
   ruby_parser (~> 3.8)
   rufus-scheduler (~> 3.4)
-  rugged (~> 0.25.1.1)
+  rugged (~> 0.26.0)
   sanitize (~> 2.0)
   sass-rails (~> 5.0.6)
   scss_lint (~> 0.54.0)

app/assets/javascripts/commons/bootstrap.js

@@ -8,6 +8,7 @@ import 'bootstrap-sass/assets/javascripts/bootstrap/modal';
 import 'bootstrap-sass/assets/javascripts/bootstrap/tab';
 import 'bootstrap-sass/assets/javascripts/bootstrap/transition';
 import 'bootstrap-sass/assets/javascripts/bootstrap/tooltip';
+import 'bootstrap-sass/assets/javascripts/bootstrap/popover';
 
 // custom jQuery functions
 $.fn.extend({

app/assets/javascripts/dispatcher.js

@@ -67,6 +67,7 @@ import PerformanceBar from './performance_bar';
 import initNotes from './init_notes';
 import initLegacyFilters from './init_legacy_filters';
 import initIssuableSidebar from './init_issuable_sidebar';
+import GpgBadges from './gpg_badges';
 
 (function() {
   var Dispatcher;
@@ -310,6 +311,9 @@ import initIssuableSidebar from './init_issuable_sidebar';
           }).bindEvents();
           break;
         case 'projects:commits:show':
+          shortcut_handler = new ShortcutsNavigation();
+          GpgBadges.fetch();
+          break;
         case 'projects:activity':
           shortcut_handler = new ShortcutsNavigation();
           break;

app/assets/javascripts/gpg_badges.js

+export default class GpgBadges {
+  static fetch() {
+    const form = $('.commits-search-form');
+
+    $.get({
+      url: form.data('signatures-path'),
+      data: form.serialize(),
+    }).done((response) => {
+      const badges = $('.js-loading-gpg-badge');
+      response.signatures.forEach((signature) => {
+        badges.filter(`[data-commit-sha="${signature.commit_sha}"]`).replaceWith(signature.html);
+      });
+    });
+  }
+}

app/assets/javascripts/main.js

@@ -158,6 +158,8 @@ document.addEventListener('beforeunload', function () {
   $(document).off('scroll');
   // Close any open tooltips
   $('.has-tooltip, [data-toggle="tooltip"]').tooltip('destroy');
+  // Close any open popover
+  $('[data-toggle="popover"]').popover('destroy');
 });
 
 window.addEventListener('hashchange', gl.utils.handleLocationHash);
@@ -246,6 +248,11 @@ $(function () {
       return $(el).data('placement') || 'bottom';
     }
   });
+  // Initialize popovers
+  $body.popover({
+    selector: '[data-toggle="popover"]',
+    trigger: 'focus'
+  });
   $('.trigger-submit').on('change', function () {
     return $(this).parents('form').submit();
   // Form submitter

app/assets/stylesheets/framework/mixins.scss

@@ -118,3 +118,29 @@
     @content;
   }
 }
+
+/*
+ * Mixin for status badges, as used for pipelines and commit signatures
+ */
+@mixin status-color($color-light, $color-main, $color-dark) {
+  color: $color-main;
+  border-color: $color-main;
+
+  &:not(span):hover {
+    background-color: $color-light;
+    color: $color-dark;
+    border-color: $color-dark;
+
+    svg {
+      fill: $color-dark;
+    }
+  }
+
+  svg {
+    fill: $color-main;
+  }
+}
+
+@mixin green-status-color {
+  @include status-color($green-50, $green-500, $green-700);
+}

app/assets/stylesheets/pages/commits.scss

@@ -283,3 +283,63 @@
     color: $gl-text-color;
   }
 }
+
+
+.gpg-status-box {
+  &.valid {
+    @include green-status-color;
+  }
+
+  &.invalid {
+    @include status-color($gray-dark, $gray, $common-gray-dark);
+    border-color: $common-gray-light;
+  }
+}
+
+.gpg-popover-status {
+  display: flex;
+  align-items: center;
+  font-weight: normal;
+  line-height: 1.5;
+}
+
+.gpg-popover-icon {
+  // same margin as .s32.avatar
+  margin-right: $btn-side-margin;
+
+  &.valid {
+    svg {
+      border: 1px solid $brand-success;
+
+      fill: $brand-success;
+    }
+  }
+
+  &.invalid {
+    svg {
+      border: 1px solid $common-gray-light;
+
+      fill: $common-gray-light;
+    }
+  }
+
+  svg {
+    width: 32px;
+    height: 32px;
+    border-radius: 50%;
+    vertical-align: middle;
+  }
+}
+
+.gpg-popover-user-link {
+  display: flex;
+  align-items: center;
+  margin-bottom: $gl-padding / 2;
+  text-decoration: none;
+  color: $gl-text-color;
+}
+
+.commit .gpg-popover-help-link {
+  display: block;
+  color: $link-color;
+}

app/assets/stylesheets/pages/profile.scss

@@ -391,3 +391,26 @@ table.u2f-registrations {
     margin-bottom: 0;
   }
 }
+
+.gpg-email-badge {
+  display: inline;
+  margin-right: $gl-padding / 2;
+
+  .gpg-email-badge-email {
+    display: inline;
+    margin-right: $gl-padding / 4;
+  }
+
+  .label-verification-status {
+    border-width: 1px;
+    border-style: solid;
+
+    &.verified {
+      @include green-status-color;
+    }
+
+    &.unverified {
+      @include status-color($gray-dark, $gray, $common-gray-dark);
+    }
+  }
+}

app/assets/stylesheets/pages/status.scss

-@mixin status-color($color-light, $color-main, $color-dark) {
-  color: $color-main;
-  border-color: $color-main;
-
-  &:not(span):hover {
-    background-color: $color-light;
-    color: $color-dark;
-    border-color: $color-dark;
-
-    svg {
-      fill: $color-dark;
-    }
-  }
-
-  svg {
-    fill: $color-main;
-  }
-}
-
 .ci-status {
   padding: 2px 7px 4px;
   border: 1px solid $gray-darker;
@@ -41,7 +22,7 @@
   }
 
   &.ci-success {
-    @include status-color($green-50, $green-500, $green-700);
+    @include green-status-color;
   }
 
   &.ci-canceled,

app/controllers/admin/application_settings_controller.rb

@@ -76,88 +76,13 @@ class Admin::ApplicationSettingsController < Admin::ApplicationController
     params.delete(:domain_blacklist_raw) if params[:domain_blacklist_file]
 
     params.require(:application_setting).permit(
-      application_setting_params_attributes
+      visible_application_setting_attributes
     )
   end
 
-  def application_setting_params_attributes
-    [
-      :admin_notification_email,
-      :after_sign_out_path,
-      :after_sign_up_text,
-      :akismet_api_key,
-      :akismet_enabled,
-      :container_registry_token_expire_delay,
-      :default_artifacts_expire_in,
-      :default_branch_protection,
-      :default_group_visibility,
-      :default_project_visibility,
-      :default_projects_limit,
-      :default_snippet_visibility,
-      :domain_blacklist_enabled,
+  def visible_application_setting_attributes
+    ApplicationSettingsHelper.visible_attributes + [
       :domain_blacklist_file,
-      :domain_blacklist_raw,
-      :domain_whitelist_raw,
-      :email_author_in_body,
-      :enabled_git_access_protocol,
-      :gravatar_enabled,
-      :help_page_text,
-      :help_page_hide_commercial_content,
-      :help_page_support_url,
-      :home_page_url,
-      :housekeeping_bitmaps_enabled,
-      :housekeeping_enabled,
-      :housekeeping_full_repack_period,
-      :housekeeping_gc_period,
-      :housekeeping_incremental_repack_period,
-      :html_emails_enabled,
-      :koding_enabled,
-      :koding_url,
-      :password_authentication_enabled,
-      :plantuml_enabled,
-      :plantuml_url,
-      :max_artifacts_size,
-      :max_attachment_size,
-      :max_pages_size,
-      :metrics_enabled,
-      :metrics_host,
-      :metrics_method_call_threshold,
-      :metrics_packet_size,
-      :metrics_pool_size,
-      :metrics_port,
-      :metrics_sample_interval,
-      :metrics_timeout,
-      :performance_bar_allowed_group_id,
-      :performance_bar_enabled,
-      :recaptcha_enabled,
-      :recaptcha_private_key,
-      :recaptcha_site_key,
-      :repository_checks_enabled,
-      :require_two_factor_authentication,
-      :session_expire_delay,
-      :sign_in_text,
-      :signup_enabled,
-      :sentry_dsn,
-      :sentry_enabled,
-      :clientside_sentry_dsn,
-      :clientside_sentry_enabled,
-      :send_user_confirmation_email,
-      :shared_runners_enabled,
-      :shared_runners_text,
-      :sidekiq_throttling_enabled,
-      :sidekiq_throttling_factor,
-      :two_factor_grace_period,
-      :user_default_external,
-      :user_oauth_applications,
-      :unique_ips_limit_per_user,
-      :unique_ips_limit_time_window,
-      :unique_ips_limit_enabled,
-      :version_check_enabled,
-      :terminal_max_session_time,
-      :polling_interval_multiplier,
-      :prometheus_metrics_enabled,
-      :usage_ping_enabled,
-
       disabled_oauth_sign_in_sources: [],
       import_sources: [],
       repository_storages: [],

app/controllers/admin/applications_controller.rb

@@ -50,6 +50,6 @@ class Admin::ApplicationsController < Admin::ApplicationController
 
   # Only allow a trusted parameter "white list" through.
   def application_params
-    params[:doorkeeper_application].permit(:name, :redirect_uri, :scopes)
+    params.require(:doorkeeper_application).permit(:name, :redirect_uri, :trusted, :scopes)
   end
 end

app/controllers/profiles/gpg_keys_controller.rb

+class Profiles::GpgKeysController < Profiles::ApplicationController
+  before_action :set_gpg_key, only: [:destroy, :revoke]
+
+  def index
+    @gpg_keys = current_user.gpg_keys
+    @gpg_key = GpgKey.new
+  end
+
+  def create
+    @gpg_key = current_user.gpg_keys.new(gpg_key_params)
+
+    if @gpg_key.save
+      redirect_to profile_gpg_keys_path
+    else
+      @gpg_keys = current_user.gpg_keys.select(&:persisted?)
+      render :index
+    end
+  end
+
+  def destroy
+    @gpg_key.destroy
+
+    respond_to do |format|
+      format.html { redirect_to profile_gpg_keys_url, status: 302 }
+      format.js { head :ok }
+    end
+  end
+
+  def revoke
+    @gpg_key.revoke
+
+    respond_to do |format|
+      format.html { redirect_to profile_gpg_keys_url, status: 302 }
+      format.js { head :ok }
+    end
+  end
+
+  private
+
+  def gpg_key_params
+    params.require(:gpg_key).permit(:key)
+  end
+
+  def set_gpg_key
+    @gpg_key = current_user.gpg_keys.find(params[:id])
+  end
+end

app/controllers/projects/commits_controller.rb

@@ -6,18 +6,9 @@ class Projects::CommitsController < Projects::ApplicationController
   before_action :require_non_empty_project
   before_action :assign_ref_vars
   before_action :authorize_download_code!
+  before_action :set_commits
 
   def show
-    @limit, @offset = (params[:limit] || 40).to_i, (params[:offset] || 0).to_i
-    search = params[:search]
-
-    @commits =
-      if search.present?
-        @repository.find_commits_by_message(search, @ref, @path, @limit, @offset)
-      else
-        @repository.commits(@ref, path: @path, limit: @limit, offset: @offset)
-      end
-
     @note_counts = project.notes.where(commit_id: @commits.map(&:id))
       .group(:commit_id).count
 
@@ -37,4 +28,33 @@ class Projects::CommitsController < Projects::ApplicationController
       end
     end
   end
+
+  def signatures
+    respond_to do |format|
+      format.json do
+        render json: {
+          signatures: @commits.select(&:has_signature?).map do |commit|
+            {
+              commit_sha: commit.sha,
+              html: view_to_html_string('projects/commit/_signature', signature: commit.signature)
+            }
+          end
+        }
+      end
+    end
+  end
+
+  private
+
+  def set_commits
+    @limit, @offset = (params[:limit] || 40).to_i, (params[:offset] || 0).to_i
+    search = params[:search]
+
+    @commits =
+      if search.present?
+        @repository.find_commits_by_message(search, @ref, @path, @limit, @offset)
+      else
+        @repository.commits(@ref, path: @path, limit: @limit, offset: @offset)
+      end
+  end
 end

app/controllers/projects/wikis_controller.rb

@@ -55,6 +55,9 @@ class Projects::WikisController < Projects::ApplicationController
     else
       render 'edit'
     end
+  rescue WikiPage::PageChangedError
+    @conflict = true
+    render 'edit'
   end
 
   def create
@@ -119,6 +122,6 @@ class Projects::WikisController < Projects::ApplicationController
   end
 
   def wiki_params
-    params.require(:wiki).permit(:title, :content, :format, :message)
+    params.require(:wiki).permit(:title, :content, :format, :message, :last_commit_sha)
   end
 end

app/helpers/application_settings_helper.rb

 module ApplicationSettingsHelper
+  extend self
   delegate  :gravatar_enabled?,
             :signup_enabled?,
             :password_authentication_enabled?,
@@ -91,4 +92,88 @@ module ApplicationSettingsHelper
   def sidekiq_queue_options_for_select
     options_for_select(Sidekiq::Queue.all.map(&:name), @application_setting.sidekiq_throttling_queues)
   end
+
+  def visible_attributes
+    [
+      :admin_notification_email,
+      :after_sign_out_path,
+      :after_sign_up_text,
+      :akismet_api_key,
+      :akismet_enabled,
+      :clientside_sentry_dsn,
+      :clientside_sentry_enabled,
+      :container_registry_token_expire_delay,
+      :default_artifacts_expire_in,
+      :default_branch_protection,
+      :default_group_visibility,
+      :default_project_visibility,
+      :default_projects_limit,
+      :default_snippet_visibility,
+      :disabled_oauth_sign_in_sources,
+      :domain_blacklist_enabled,
+      :domain_blacklist_raw,
+      :domain_whitelist_raw,
+      :email_author_in_body,
+      :enabled_git_access_protocol,
+      :gravatar_enabled,
+      :help_page_hide_commercial_content,
+      :help_page_support_url,
+      :help_page_text,
+      :home_page_url,
+      :housekeeping_bitmaps_enabled,
+      :housekeeping_enabled,
+      :housekeeping_full_repack_period,
+      :housekeeping_gc_period,
+      :housekeeping_incremental_repack_period,
+      :html_emails_enabled,
+      :import_sources,
+      :koding_enabled,
+      :koding_url,
+      :max_artifacts_size,
+      :max_attachment_size,
+      :max_pages_size,
+      :metrics_enabled,
+      :metrics_host,
+      :metrics_method_call_threshold,
+      :metrics_packet_size,
+      :metrics_pool_size,
+      :metrics_port,
+      :metrics_sample_interval,
+      :metrics_timeout,
+      :password_authentication_enabled,
+      :performance_bar_allowed_group_id,
+      :performance_bar_enabled,
+      :plantuml_enabled,
+      :plantuml_url,
+      :polling_interval_multiplier,
+      :prometheus_metrics_enabled,
+      :recaptcha_enabled,
+      :recaptcha_private_key,
+      :recaptcha_site_key,
+      :repository_checks_enabled,
+      :repository_storages,
+      :require_two_factor_authentication,
+      :restricted_visibility_levels,
+      :send_user_confirmation_email,
+      :sentry_dsn,
+      :sentry_enabled,
+      :session_expire_delay,
+      :shared_runners_enabled,
+      :shared_runners_text,
+      :sidekiq_throttling_enabled,
+      :sidekiq_throttling_factor,
+      :sidekiq_throttling_queues,
+      :sign_in_text,
+      :signup_enabled,
+      :terminal_max_session_time,
+      :two_factor_grace_period,
+      :unique_ips_limit_enabled,
+      :unique_ips_limit_per_user,
+      :unique_ips_limit_time_window,
+      :usage_ping_enabled,
+      :user_default_external,
+      :user_oauth_applications,
+      :version_check_enabled
+    ]
+  end
 end

app/helpers/commits_helper.rb

@@ -113,6 +113,10 @@ module CommitsHelper
     commit_action_link('cherry-pick', commit, continue_to_path, btn_class: btn_class, has_tooltip: has_tooltip)
   end
 
+  def commit_signature_badge_classes(additional_classes)
+    %w(btn status-box gpg-status-box) + Array(additional_classes)
+  end
+
   protected
 
   # Private: Returns a link to a person. If the person has a matching user and

app/mailers/emails/profile.rb

@@ -14,7 +14,7 @@ module Emails
     end
 
     def new_ssh_key_email(key_id)
-      @key = Key.find_by_id(key_id)
+      @key = Key.find_by(id: key_id)
 
       return unless @key
 
@@ -22,5 +22,15 @@ module Emails
       @target_url = user_url(@user)
       mail(to: @user.notification_email, subject: subject("SSH key was added to your account"))
     end
+
+    def new_gpg_key_email(gpg_key_id)
+      @gpg_key = GpgKey.find_by(id: gpg_key_id)
+
+      return unless @gpg_key
+
+      @current_user = @user = @gpg_key.user
+      @target_url = user_url(@user)
+      mail(to: @user.notification_email, subject: subject("GPG key was added to your account"))
+    end
   end
 end

app/models/application_setting.rb

@@ -315,7 +315,9 @@ class ApplicationSetting < ActiveRecord::Base
     Array(read_attribute(:repository_storages))
   end
 
+  # DEPRECATED
   # repository_storage is still required in the API. Remove in 9.0
+  # Still used in API v3
   def repository_storage
     repository_storages.first
   end

app/models/commit.rb

@@ -234,6 +234,14 @@ class Commit
     @statuses[ref] = pipelines.latest_status(ref)
   end
 
+  def signature
+    return @signature if defined?(@signature)
+
+    @signature = gpg_commit.signature
+  end
+
+  delegate :has_signature?, to: :gpg_commit
+
   def revert_branch_name
     "revert-#{short_id}"
   end
@@ -382,4 +390,8 @@ class Commit
   def merged_merge_request_no_cache(user)
     MergeRequestsFinder.new(user, project_id: project.id).find_by(merge_commit_sha: id) if merge_commit?
   end
+
+  def gpg_commit
+    @gpg_commit ||= Gitlab::Gpg::Commit.new(self)
+  end
 end

app/models/gpg_key.rb

+class GpgKey < ActiveRecord::Base
+  KEY_PREFIX = '-----BEGIN PGP PUBLIC KEY BLOCK-----'.freeze
+  KEY_SUFFIX = '-----END PGP PUBLIC KEY BLOCK-----'.freeze
+
+  include ShaAttribute
+
+  sha_attribute :primary_keyid
+  sha_attribute :fingerprint
+
+  belongs_to :user
+  has_many :gpg_signatures
+
+  validates :user, presence: true
+
+  validates :key,
+    presence: true,
+    uniqueness: true,
+    format: {
+      with: /\A#{KEY_PREFIX}((?!#{KEY_PREFIX})(?!#{KEY_SUFFIX}).)+#{KEY_SUFFIX}\Z/m,
+      message: "is invalid. A valid public GPG key begins with '#{KEY_PREFIX}' and ends with '#{KEY_SUFFIX}'"
+    }
+
+  validates :fingerprint,
+    presence: true,
+    uniqueness: true,
+    # only validate when the `key` is valid, as we don't want the user to show
+    # the error about the fingerprint
+    unless: -> { errors.has_key?(:key) }
+
+  validates :primary_keyid,
+    presence: true,
+    uniqueness: true,
+    # only validate when the `key` is valid, as we don't want the user to show
+    # the error about the fingerprint
+    unless: -> { errors.has_key?(:key) }
+
+  before_validation :extract_fingerprint, :extract_primary_keyid
+  after_commit :update_invalid_gpg_signatures, on: :create
+  after_commit :notify_user, on: :create
+
+  def primary_keyid
+    super&.upcase
+  end
+
+  def fingerprint
+    super&.upcase
+  end
+
+  def key=(value)
+    super(value&.strip)
+  end
+
+  def user_infos
+    @user_infos ||= Gitlab::Gpg.user_infos_from_key(key)
+  end
+
+  def verified_user_infos
+    user_infos.select do |user_info|
+      user_info[:email] == user.email
+    end
+  end
+
+  def emails_with_verified_status
+    user_infos.map do |user_info|
+      [
+        user_info[:email],
+        user_info[:email] == user.email
+      ]
+    end.to_h
+  end
+
+  def verified?
+    emails_with_verified_status.any? { |_email, verified| verified }
+  end
+
+  def update_invalid_gpg_signatures
+    InvalidGpgSignatureUpdateWorker.perform_async(self.id)
+  end
+
+  def revoke
+    GpgSignature.where(gpg_key: self, valid_signature: true).update_all(
+      gpg_key_id: nil,
+      valid_signature: false,
+      updated_at: Time.zone.now
+    )
+
+    destroy
+  end
+
+  private
+
+  def extract_fingerprint
+    # we can assume that the result only contains one item as the validation
+    # only allows one key
+    self.fingerprint = Gitlab::Gpg.fingerprints_from_key(key).first
+  end
+
+  def extract_primary_keyid
+    # we can assume that the result only contains one item as the validation
+    # only allows one key
+    self.primary_keyid = Gitlab::Gpg.primary_keyids_from_key(key).first
+  end
+
+  def notify_user
+    NotificationService.new.new_gpg_key(self)
+  end
+end

app/models/gpg_signature.rb

+class GpgSignature < ActiveRecord::Base
+  include ShaAttribute
+
+  sha_attribute :commit_sha
+  sha_attribute :gpg_key_primary_keyid
+
+  belongs_to :project
+  belongs_to :gpg_key
+
+  validates :commit_sha, presence: true
+  validates :project_id, presence: true
+  validates :gpg_key_primary_keyid, presence: true
+
+  def gpg_key_primary_keyid
+    super&.upcase
+  end
+
+  def commit
+    project.commit(commit_sha)
+  end
+end

app/models/repository.rb

@@ -457,10 +457,6 @@ class Repository
     nil
   end
 
-  def blob_by_oid(oid)
-    Gitlab::Git::Blob.raw(self, oid)
-  end
-
   def root_ref
     if raw_repository
       raw_repository.root_ref

app/models/user.rb

@@ -76,6 +76,7 @@ class User < ActiveRecord::Base
     where(type.not_eq('DeployKey').or(type.eq(nil)))
   end, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
   has_many :deploy_keys, -> { where(type: 'DeployKey') }, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
+  has_many :gpg_keys
 
   has_many :emails, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
   has_many :personal_access_tokens, dependent: :destroy # rubocop:disable Cop/ActiveRecordDependent
@@ -157,6 +158,7 @@ class User < ActiveRecord::Base
   before_save :ensure_authentication_token, :ensure_incoming_email_token
   before_save :ensure_user_rights_and_limits, if: :external_changed?
   after_save :ensure_namespace_correct
+  after_commit :update_invalid_gpg_signatures, on: :update, if: -> { previous_changes.key?('email') }
   after_initialize :set_projects_limit
   after_destroy :post_destroy_hook
 
@@ -512,6 +514,10 @@ class User < ActiveRecord::Base
     end
   end
 
+  def update_invalid_gpg_signatures
+    gpg_keys.each(&:update_invalid_gpg_signatures)
+  end
+
   # Returns the groups a user has access to
   def authorized_groups
     union = Gitlab::SQL::Union

app/models/wiki_page.rb

 class WikiPage
+  PageChangedError = Class.new(StandardError)
+
   include ActiveModel::Validations
   include ActiveModel::Conversion
   include StaticModel
@@ -136,6 +138,10 @@ class WikiPage
     versions.first
   end
 
+  def last_commit_sha
+    commit&.sha
+  end
+
   # Returns the Date that this latest version was
   # created on.
   def created_at
@@ -182,17 +188,22 @@ class WikiPage
 
   # Updates an existing Wiki Page, creating a new version.
   #
-  # new_content - The raw markup content to replace the existing.
-  # format      - Optional symbol representing the content format.
-  #               See ProjectWiki::MARKUPS Hash for available formats.
-  # message     - Optional commit message to set on the new version.
+  # new_content     - The raw markup content to replace the existing.
+  # format          - Optional symbol representing the content format.
+  #                   See ProjectWiki::MARKUPS Hash for available formats.
+  # message         - Optional commit message to set on the new version.
+  # last_commit_sha - Optional last commit sha to validate the page unchanged.
   #
   # Returns the String SHA1 of the newly created page
   # or False if the save was unsuccessful.
-  def update(new_content = "", format = :markdown, message = nil)
+  def update(new_content, format: :markdown, message: nil, last_commit_sha: nil)
     @attributes[:content] = new_content
     @attributes[:format] = format
 
+    if last_commit_sha && last_commit_sha != self.last_commit_sha
+      raise PageChangedError.new("You are attempting to update a page that has changed since you started editing it.")
+    end
+
     save :update_page, @page, content, format, message
   end
 

app/services/git_push_service.rb

@@ -56,6 +56,8 @@ class GitPushService < BaseService
     perform_housekeeping
 
     update_caches
+
+    update_signatures
   end
 
   def update_gitattributes
@@ -80,6 +82,12 @@ class GitPushService < BaseService
     ProjectCacheWorker.perform_async(@project.id, types, [:commit_count, :repository_size])
   end
 
+  def update_signatures
+    @push_commits.each do |commit|
+      CreateGpgSignatureWorker.perform_async(commit.sha, @project.id)
+    end
+  end
+
   # Schedules processing of commit messages.
   def process_commit_messages
     default = is_default_branch?

app/services/notification_service.rb

@@ -17,6 +17,16 @@ class NotificationService
     end
   end
 
+  # Always notify the user about gpg key added
+  #
+  # This is a security email so it will be sent even if the user user disabled
+  # notifications
+  def new_gpg_key(gpg_key)
+    if gpg_key.user
+      mailer.new_gpg_key_email(gpg_key.id).deliver_later
+    end
+  end
+
   # Always notify user about email added to profile
   def new_email(email)
     if email.user

app/services/wiki_pages/update_service.rb

 module WikiPages
   class UpdateService < WikiPages::BaseService
     def execute(page)
-      if page.update(@params[:content], @params[:format], @params[:message])
+      if page.update(@params[:content], format: @params[:format], message: @params[:message], last_commit_sha: @params[:last_commit_sha])
         execute_hooks(page, 'update')
       end
 

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

@@ -6,6 +6,7 @@
     .col-sm-10
       = f.text_field :name, class: 'form-control'
       = doorkeeper_errors_for application, :name
+
   = content_tag :div, class: 'form-group' do
     = f.label :redirect_uri, class: 'col-sm-2 control-label'
     .col-sm-10
@@ -19,6 +20,13 @@
           %code= Doorkeeper.configuration.native_redirect_uri
           for local tests
 
+  = content_tag :div, class: 'form-group' do
+    = f.label :trusted, class: 'col-sm-2 control-label'
+    .col-sm-10
+      = f.check_box :trusted
+      %span.help-block
+        Trusted applications are automatically authorized on GitLab OAuth flow.
+
   .form-group
     = f.label :scopes, class: 'col-sm-2 control-label'
     .col-sm-10

app/views/admin/applications/index.html.haml

@@ -11,6 +11,7 @@
       %th Name
       %th Callback URL
       %th Clients
+      %th Trusted
       %th
       %th
   %tbody.oauth-applications
@@ -19,5 +20,6 @@
         %td= link_to application.name, admin_application_path(application)
         %td= application.redirect_uri
         %td= application.access_tokens.map(&:resource_owner_id).uniq.count
+        %td= application.trusted? ? 'Y': 'N'
         %td= link_to 'Edit', edit_admin_application_path(application), class: 'btn btn-link'
         %td= render 'delete_form', application: application

app/views/admin/applications/show.html.haml

@@ -23,6 +23,12 @@
           %div
             %span.monospace= uri
 
+    %tr
+      %td
+        Trusted
+      %td
+        = @application.trusted? ? 'Y' : 'N'
+
     = render "shared/tokens/scopes_list", token: @application
 
 .form-actions

app/views/groups/_shared_projects.html.haml

-= render 'shared/projects/list', projects: projects, stars: false, skip_namespace: false

app/views/layouts/nav/_new_profile_sidebar.html.haml

@@ -47,6 +47,10 @@
       = link_to profile_keys_path, title: 'SSH Keys' do
         %span
           SSH Keys
+    = nav_link(controller: :gpg_keys) do
+      = link_to profile_gpg_keys_path, title: 'GPG Keys' do
+        %span
+          GPG Keys
     = nav_link(controller: :preferences) do
       = link_to profile_preferences_path, title: 'Preferences' do
         %span

app/views/layouts/nav/_profile.html.haml

@@ -43,6 +43,10 @@
       = link_to profile_keys_path, title: 'SSH Keys' do
         %span
           SSH Keys
+    = nav_link(controller: :gpg_keys) do
+      = link_to profile_gpg_keys_path, title: 'GPG Keys' do
+        %span
+          GPG Keys
     = nav_link(controller: :preferences) do
       = link_to profile_preferences_path, title: 'Preferences' do
         %span

app/views/notify/new_gpg_key_email.html.haml

+%p
+  Hi #{@user.name}!
+%p
+  A new GPG key was added to your account:
+%p
+  Fingerprint:
+  %code= @gpg_key.fingerprint
+%p
+  If this key was added in error, you can remove it under
+  = link_to "GPG Keys", profile_gpg_keys_url

app/views/notify/new_gpg_key_email.text.erb

+Hi <%= @user.name %>!
+
+A new GPG key was added to your account:
+
+Fingerprint: <%= @gpg_key.fingerprint %>
+
+If this key was added in error, you can remove it at <%= profile_gpg_keys_url %>

app/views/profiles/gpg_keys/_email_with_badge.html.haml

+- css_classes = %w(label label-verification-status)
+- css_classes << (verified ? 'verified': 'unverified')
+- text = verified ? 'Verified' : 'Unverified'
+
+.gpg-email-badge
+  .gpg-email-badge-email= email
+  %div{ class: css_classes }
+    = text

app/views/profiles/gpg_keys/_form.html.haml

+%div
+  = form_for [:profile, @gpg_key], html: { class: 'js-requires-input' } do |f|
+    = form_errors(@gpg_key)
+
+    .form-group
+      = f.label :key, class: 'label-light'
+      = f.text_area :key, class: "form-control", rows: 8, required: true, placeholder: "Don't paste the private part of the GPG key. Paste the public part which begins with '-----BEGIN PGP PUBLIC KEY BLOCK-----'."
+
+    .prepend-top-default
+      = f.submit 'Add key', class: "btn btn-create"

app/views/profiles/gpg_keys/_key.html.haml

+%li.key-list-item
+  .pull-left.append-right-10
+    = icon 'key', class: "settings-list-icon hidden-xs"
+  .key-list-item-info
+    - key.emails_with_verified_status.map do |email, verified|
+      = render partial: 'email_with_badge', locals: { email: email, verified: verified }
+
+    .description
+      %code= key.fingerprint
+  .pull-right
+    %span.key-created-at
+      created #{time_ago_with_tooltip(key.created_at)}
+    = link_to profile_gpg_key_path(key), data: { confirm: 'Are you sure? Removing this GPG key does not affect already signed commits.' }, method: :delete, class: "btn btn-danger prepend-left-10" do
+      %span.sr-only Remove
+      = icon('trash')
+    = link_to revoke_profile_gpg_key_path(key), data: { confirm: 'Are you sure? All commits that were signed with this GPG key will be unverified.' }, method: :put, class: "btn btn-danger prepend-left-10" do
+      %span.sr-only Revoke
+      Revoke

app/views/profiles/gpg_keys/_key_table.html.haml

+- is_admin = local_assigns.fetch(:admin, false)
+
+- if @gpg_keys.any?
+  %ul.well-list
+    = render partial: 'profiles/gpg_keys/key', collection: @gpg_keys, locals: { is_admin: is_admin }
+- else
+  %p.settings-message.text-center
+    - if is_admin
+      There are no GPG keys associated with this account.
+    - else
+      There are no GPG keys with access to your account.

app/views/profiles/gpg_keys/index.html.haml

+- page_title "GPG Keys"
+= render 'profiles/head'
+
+.row.prepend-top-default
+  .col-lg-3.profile-settings-sidebar
+    %h4.prepend-top-0
+      = page_title
+    %p
+      GPG keys allow you to verify signed commits.
+  .col-lg-9
+    %h5.prepend-top-0
+      Add a GPG key
+    %p.profile-settings-content
+      Before you can add a GPG key you need to
+      = link_to 'generate it.', help_page_path('workflow/gpg_signed_commits/index.md')
+    = render 'form'
+    %hr
+    %h5
+      Your GPG keys (#{@gpg_keys.count})
+    .append-bottom-default
+      = render 'key_table'

app/views/projects/blob/viewers/_image.html.haml

 .file-content.image_file
-  %img{ 'data-src': blob_raw_url, alt: viewer.blob.name }
+  = image_tag(blob_raw_url, alt: viewer.blob.name)

app/views/projects/commit/_ajax_signature.html.haml

+- if commit.has_signature?
+  %button{ class: commit_signature_badge_classes('js-loading-gpg-badge'), data: { toggle: 'tooltip', placement: 'auto top', title: 'GPG signature (loading...)', 'commit-sha' => commit.sha } }
+    %i.fa.fa-spinner.fa-spin

app/views/projects/commit/_commit_box.html.haml

 .page-content-header
   .header-main-content
+    = render partial: 'signature', object: @commit.signature
     %strong
       #{ s_('CommitBoxTitle|Commit') }
       %span.commit-sha= @commit.short_id

app/views/projects/commit/_invalid_signature_badge.html.haml

+- title = capture do
+  .gpg-popover-icon.invalid
+    = render 'shared/icons/icon_status_notfound_borderless.svg'
+  %div
+    This commit was signed with an <strong>unverified</strong> signature.
+
+- locals = { signature: signature, title: title, label: 'Unverified', css_classes: ['invalid'] }
+
+= render partial: 'projects/commit/signature_badge', locals: locals

app/views/projects/commit/_signature.html.haml

+- if signature
+  - if signature.valid_signature?
+    = render partial: 'projects/commit/valid_signature_badge', locals: { signature: signature }
+  - else
+    = render partial: 'projects/commit/invalid_signature_badge', locals: { signature: signature }

app/views/projects/commit/_signature_badge.html.haml

+- css_classes = commit_signature_badge_classes(css_classes)
+
+- title = capture do
+  .gpg-popover-status
+    = title
+
+- content = capture do
+  .clearfix
+    = content
+
+  GPG Key ID:
+  %span.monospace= signature.gpg_key_primary_keyid
+
+
+  = link_to('Learn more about signing commits', help_page_path('workflow/gpg_signed_commits/index.md'), class: 'gpg-popover-help-link')
+
+%button{ class: css_classes, data: { toggle: 'popover', html: 'true', placement: 'auto top', title: title, content: content } }
+  = label

app/views/projects/commit/_valid_signature_badge.html.haml

+- title = capture do
+  .gpg-popover-icon.valid
+    = render 'shared/icons/icon_status_success_borderless.svg'
+  %div
+    This commit was signed with a <strong>verified</strong> signature.
+
+- content = capture do
+  - gpg_key = signature.gpg_key
+  - user = gpg_key&.user
+  - user_name = signature.gpg_key_user_name
+  - user_email = signature.gpg_key_user_email
+
+  - if user
+    = link_to user_path(user), class: 'gpg-popover-user-link' do
+      %div
+        = user_avatar_without_link(user: user, size: 32)
+
+      %div
+        %strong= gpg_key.user.name
+        %div @#{gpg_key.user.username}
+  - else
+    = mail_to user_email do
+      %div
+        = user_avatar_without_link(user_name: user_name, user_email: user_email, size: 32)
+
+      %div
+        %strong= user_name
+        %div= user_email
+
+- locals = { signature: signature, title: title, content: content, label: 'Verified', css_classes: ['valid'] }
+
+= render partial: 'projects/commit/signature_badge', locals: locals

app/views/projects/commits/_commit.html.haml

@@ -9,7 +9,7 @@
 - cache_key.push(commit.status(ref)) if commit.status(ref)
 
 = cache(cache_key, expires_in: 1.day) do
-  %li.commit.flex-list.js-toggle-container{ id: "commit-#{commit.short_id}" }
+  %li.commit.flex-row.js-toggle-container{ id: "commit-#{commit.short_id}" }
 
     .avatar-cell.hidden-xs
       = author_avatar(commit, size: 36)
@@ -36,9 +36,15 @@
           #{ commit_text.html_safe }
 
 
-      .commit-actions.flex-row.hidden-xs
+      .commit-actions.hidden-xs
         - if commit.status(ref)
           = render_commit_status(commit, ref: ref)
+
+        - if request.xhr?
+          = render partial: 'projects/commit/signature', object: commit.signature
+        - else
+          = render partial: 'projects/commit/ajax_signature', locals: { commit: commit }
+
         = link_to commit.short_id, project_commit_path(project, commit), class: "commit-sha btn btn-transparent"
         = clipboard_button(text: commit.id, title: _("Copy commit SHA to clipboard"))
         = link_to_browse_code(project, commit)

app/views/projects/commits/_commits.html.haml

@@ -7,7 +7,7 @@
     %span.commits-count= n_("%d commit", "%d commits", commits.count) % commits.count
 
   %li.commits-row{ data: { day: day } }
-    %ul.content-list.commit-list
+    %ul.content-list.commit-list.flex-list
       = render partial: 'projects/commits/commit', collection: commits, locals: { project: project, ref: ref }
 
 - if hidden > 0

app/views/projects/commits/show.html.haml

@@ -29,7 +29,7 @@
             = link_to _("Create merge request"), create_mr_path(@repository.root_ref, @ref), class: 'btn btn-success'
 
         .control
-          = form_tag(project_commits_path(@project, @id), method: :get, class: 'commits-search-form') do
+          = form_tag(project_commits_path(@project, @id), method: :get, class: 'commits-search-form', data: { 'signatures-path' => namespace_project_signatures_path }) do
             = search_field_tag :search, params[:search], { placeholder: _('Filter by commit message'), id: 'commits-search', class: 'form-control search-text-input input-short', spellcheck: false }
         .control
           = link_to project_commits_path(@project, @ref, rss_url_options), title: _("Commits feed"), class: 'btn' do

app/views/projects/diffs/viewers/_image.html.haml

@@ -8,7 +8,7 @@
   .image
     %span.wrap
       .frame{ class: (diff_file.deleted_file? ? 'deleted' : 'added') }
-        %img{ 'data-src': blob_raw_path, alt: diff_file.file_path }
+        = image_tag(blob_raw_path, alt: diff_file.file_path)
       %p.image-info= number_to_human_size(blob.size)
 - else
   .image
@@ -16,7 +16,7 @@
       %span.wrap
         .frame.deleted
           %a{ href: project_blob_path(@project, tree_join(diff_file.old_content_sha, diff_file.old_path)) }
-            %img{ 'data-src': old_blob_raw_path, alt: diff_file.old_path }
+            = image_tag(old_blob_raw_path, alt: diff_file.old_path)
         %p.image-info.hide
           %span.meta-filesize= number_to_human_size(old_blob.size)
           |
@@ -28,7 +28,7 @@
       %span.wrap
         .frame.added
           %a{ href: project_blob_path(@project, tree_join(diff_file.content_sha, diff_file.new_path)) }
-            %img{ 'data-src': blob_raw_path, alt: diff_file.new_path }
+            = image_tag(blob_raw_path, alt: diff_file.new_path)
         %p.image-info.hide
           %span.meta-filesize= number_to_human_size(blob.size)
           |
@@ -41,10 +41,10 @@
     .swipe.view.hide
       .swipe-frame
         .frame.deleted
-          %img{ 'data-src': old_blob_raw_path, alt: diff_file.old_path }
+          = image_tag(old_blob_raw_path, alt: diff_file.old_path)
         .swipe-wrap
           .frame.added
-            %img{ 'data-src': blob_raw_path, alt: diff_file.new_path }
+            = image_tag(blob_raw_path, alt: diff_file.new_path)
         %span.swipe-bar
           %span.top-handle
           %span.bottom-handle
@@ -52,9 +52,9 @@
     .onion-skin.view.hide
       .onion-skin-frame
         .frame.deleted
-          %img{ 'data-src': old_blob_raw_path, alt: diff_file.old_path }
+          = image_tag(old_blob_raw_path, alt: diff_file.old_path)
         .frame.added
-          %img{ 'data-src': blob_raw_path, alt: diff_file.new_path }
+          = image_tag(blob_raw_path, alt: diff_file.new_path)
         .controls
           .transparent
           .drag-track

app/views/projects/wikis/_form.html.haml

@@ -4,6 +4,8 @@
   = form_errors(@page)
 
   = f.hidden_field :title, value: @page.title
+  - if @page.persisted?
+    = f.hidden_field :last_commit_sha, value: @page.last_commit_sha
   .form-group
     .col-sm-12= f.label :format, class: 'control-label-full-width'
     .col-sm-12

app/views/projects/wikis/edit.html.haml

 - @content_class = "limit-container-width limit-container-width-sm" unless fluid_layout
 - page_title "Edit", @page.title.capitalize, "Wiki"
 
+- if @conflict
+  .alert.alert-danger
+    Someone edited the page the same time you did. Please check out
+    = link_to "the page", project_wiki_path(@project, @page), target: "_blank"
+    and make sure your changes will not unintentionally remove theirs.
+
 .wiki-page-header.has-sidebar-toggle
   %button.btn.btn-default.sidebar-toggle.js-sidebar-wiki-toggle{ role: "button", type: "button" }
     = icon('angle-double-left')

app/views/shared/icons/_icon_status_notfound_borderless.svg

+<svg width="22" height="22" viewBox="0 0 22 22" xmlns="http://www.w3.org/2000/svg"><path d="M12.822 11.29c.816-.581 1.421-1.348 1.683-2.322.603-2.243-.973-4.553-3.53-4.553-1.15 0-2.085.41-2.775 1.089-.42.413-.672.835-.8 1.167a1.179 1.179 0 0 0 2.2.847c.016-.043.1-.184.252-.334.264-.259.613-.412 1.123-.412.938 0 1.47.78 1.254 1.584-.105.39-.37.726-.773 1.012a3.25 3.25 0 0 1-.945.47 1.179 1.179 0 0 0-.874 1.138v2.234a1.179 1.179 0 1 0 2.358 0V11.78a5.9 5.9 0 0 0 .827-.492z" fill-rule="nonzero"/><ellipse cx="10.825" cy="16.711" rx="1.275" ry="1.322"/></svg>

app/workers/create_gpg_signature_worker.rb

+class CreateGpgSignatureWorker
+  include Sidekiq::Worker
+  include DedicatedSidekiqQueue
+
+  def perform(commit_sha, project_id)
+    project = Project.find_by(id: project_id)
+
+    return unless project
+
+    commit = project.commit(commit_sha)
+
+    return unless commit
+
+    commit.signature
+  end
+end

app/workers/invalid_gpg_signature_update_worker.rb

+class InvalidGpgSignatureUpdateWorker
+  include Sidekiq::Worker
+  include DedicatedSidekiqQueue
+
+  def perform(gpg_key_id)
+    gpg_key = GpgKey.find_by(id: gpg_key_id)
+
+    return unless gpg_key
+
+    Gitlab::Gpg::InvalidGpgSignatureUpdater.new(gpg_key).run
+  end
+end

changelogs/unreleased/1827-prevent-concurrent-editing-wiki.yml

+---
+title: Alert the user if a Wiki page changed while they were editing it in order to prevent overwriting changes.
+merge_request: 9707
+author: Hiroyuki Sato

changelogs/unreleased/bvl-add-all-settings-to-api.yml

+---
+title: Make all application-settings accessible through the API
+merge_request: 12851
+author:

changelogs/unreleased/feature-gpg-signed-commits.yml

+---
+title: GPG signed commits integration
+merge_request: 9546
+author: Alexis Reigel

changelogs/unreleased/pawel-prometheus_client_pid_reuse_error.yml

+---
+title: Fix Prometheus client PID reuse bug
+merge_request: 13130
+author:

changelogs/unreleased/skip-oauth-authorization-for-trusted-applications.yml

+---
+title: Skip oAuth authorization for trusted applications
+merge_request:
+author:

config/initializers/devise.rb

@@ -192,7 +192,7 @@ Devise.setup do |config|
   #
   # The :"*/*" and "*/*" formats below is required to match Internet
   # Explorer requests.
-  # config.navigational_formats = [:"*/*", "*/*", :html]
+  config.navigational_formats = [:"*/*", "*/*", :html, :zip]
 
   # The default HTTP method used to sign out a resource. Default is :delete.
   config.sign_out_via = :delete
@@ -206,11 +206,11 @@ Devise.setup do |config|
   # If you want to use other strategies, that are not supported by Devise, or
   # change the failure app, you can configure them inside the config.warden block.
   #
-  config.warden do |manager|
-    manager.failure_app = Gitlab::DeviseFailure
-    # manager.intercept_401 = false
-    # manager.default_strategies(scope: :user).unshift :some_external_strategy
-  end
+  # config.warden do |manager|
+  #   manager.failure_app = Gitlab::DeviseFailure
+  #   manager.intercept_401 = false
+  #   manager.default_strategies(scope: :user).unshift :some_external_strategy
+  # end
 
   if Gitlab::LDAP::Config.enabled?
     Gitlab::LDAP::Config.providers.each do |provider|

config/initializers/doorkeeper.rb

@@ -92,9 +92,9 @@ Doorkeeper.configure do
   # Under some circumstances you might want to have applications auto-approved,
   # so that the user skips the authorization step.
   # For example if dealing with trusted a application.
-  # skip_authorization do |resource_owner, client|
-  #   client.superapp? or resource_owner.admin?
-  # end
+  skip_authorization do |resource_owner, client|
+    client.application.trusted?
+  end
 
   # WWW-Authenticate Realm (default "Doorkeeper").
   # realm "Doorkeeper"

config/initializers/mysql_set_length_for_binary_indexes.rb

+# This patches ActiveRecord so indexes for binary columns created using the
+# MySQL adapter apply a length of 20. Otherwise MySQL can't create an index on
+# binary columns.
+
+module MysqlSetLengthForBinaryIndex
+  def add_index(table_name, column_names, options = {})
+    Array(column_names).each do |column_name|
+      column = ActiveRecord::Base.connection.columns(table_name).find { |c| c.name == column_name }
+
+      if column&.type == :binary
+        options[:length] = 20
+      end
+    end
+
+    super(table_name, column_names, options)
+  end
+end
+
+if defined?(ActiveRecord::ConnectionAdapters::Mysql2Adapter)
+  ActiveRecord::ConnectionAdapters::Mysql2Adapter.send(:prepend, MysqlSetLengthForBinaryIndex)
+end

config/routes/profile.rb

@@ -23,6 +23,11 @@ resource :profile, only: [:show, :update] do
     end
     resource :preferences, only: [:show, :update]
     resources :keys, only: [:index, :show, :create, :destroy]
+    resources :gpg_keys, only: [:index, :create, :destroy] do
+      member do
+        put :revoke
+      end
+    end
     resources :emails, only: [:index, :create, :destroy]
     resources :chat_names, only: [:index, :new, :create, :destroy] do
       collection do

config/routes/repository.rb

@@ -76,6 +76,8 @@ scope format: false do
     get '/tree/*id', to: 'tree#show', as: :tree
     get '/raw/*id', to: 'raw#show', as: :raw
     get '/blame/*id', to: 'blame#show', as: :blame
+
+    get '/commits/*id/signatures', to: 'commits#signatures', as: :signatures
     get '/commits/*id', to: 'commits#show', as: :commits
 
     post '/create_dir/*id', to: 'tree#create_dir', as: :create_dir

config/sidekiq_queues.yml

@@ -29,6 +29,8 @@
   - [email_receiver, 2]
   - [emails_on_push, 2]
   - [mailers, 2]
+  - [invalid_gpg_signature_update, 2]
+  - [create_gpg_signature, 2]
   - [upload_checksum, 1]
   - [use_key, 1]
   - [repository_fork, 1]

config/unicorn.rb.example

@@ -121,6 +121,10 @@ after_fork do |server, worker|
   defined?(ActiveRecord::Base) and
     ActiveRecord::Base.establish_connection
 
+  # reset prometheus client, this will cause any opened metrics files to be closed
+  defined?(::Prometheus::Client.reinitialize_on_pid_change) &&
+    Prometheus::Client.reinitialize_on_pid_change
+
   # if preload_app is true, then you may also want to check and
   # restart any other shared sockets/descriptors such as Memcached,
   # and Redis.  TokyoCabinet file handles are safe to reuse

db/migrate/20170222111732_create_gpg_keys.rb

+class CreateGpgKeys < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def change
+    create_table :gpg_keys do |t|
+      t.timestamps_with_timezone null: false
+
+      t.references :user, index: true, foreign_key: { on_delete: :cascade }
+
+      t.binary :primary_keyid
+      t.binary :fingerprint
+
+      t.text :key
+
+      t.index :primary_keyid, unique: true, length: Gitlab::Database.mysql? ? 20 : nil
+      t.index :fingerprint, unique: true, length: Gitlab::Database.mysql? ? 20 : nil
+    end
+  end
+end

db/migrate/20170613154149_create_gpg_signatures.rb

+class CreateGpgSignatures < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def change
+    create_table :gpg_signatures do |t|
+      t.timestamps_with_timezone null: false
+
+      t.references :project, index: true, foreign_key: { on_delete: :cascade }
+      t.references :gpg_key, index: true, foreign_key: { on_delete: :nullify }
+
+      t.boolean :valid_signature
+
+      t.binary :commit_sha
+      t.binary :gpg_key_primary_keyid
+
+      t.text :gpg_key_user_name
+      t.text :gpg_key_user_email
+
+      t.index :commit_sha, unique: true, length: Gitlab::Database.mysql? ? 20 : nil
+      t.index :gpg_key_primary_keyid, length: Gitlab::Database.mysql? ? 20 : nil
+    end
+  end
+end

db/migrate/20170717200542_add_trusted_column_to_oauth_applications.rb

+class AddTrustedColumnToOauthApplications < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default(:oauth_applications, :trusted, :boolean, default: false)
+  end
+
+  def down
+    remove_column(:oauth_applications, :trusted)
+  end
+end

db/schema.rb

@@ -540,6 +540,36 @@ ActiveRecord::Schema.define(version: 20170725145659) do
 
   add_index "forked_project_links", ["forked_to_project_id"], name: "index_forked_project_links_on_forked_to_project_id", unique: true, using: :btree
 
+  create_table "gpg_keys", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.integer "user_id"
+    t.binary "primary_keyid"
+    t.binary "fingerprint"
+    t.text "key"
+  end
+
+  add_index "gpg_keys", ["fingerprint"], name: "index_gpg_keys_on_fingerprint", unique: true, using: :btree
+  add_index "gpg_keys", ["primary_keyid"], name: "index_gpg_keys_on_primary_keyid", unique: true, using: :btree
+  add_index "gpg_keys", ["user_id"], name: "index_gpg_keys_on_user_id", using: :btree
+
+  create_table "gpg_signatures", force: :cascade do |t|
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+    t.integer "project_id"
+    t.integer "gpg_key_id"
+    t.boolean "valid_signature"
+    t.binary "commit_sha"
+    t.binary "gpg_key_primary_keyid"
+    t.text "gpg_key_user_name"
+    t.text "gpg_key_user_email"
+  end
+
+  add_index "gpg_signatures", ["commit_sha"], name: "index_gpg_signatures_on_commit_sha", unique: true, using: :btree
+  add_index "gpg_signatures", ["gpg_key_id"], name: "index_gpg_signatures_on_gpg_key_id", using: :btree
+  add_index "gpg_signatures", ["gpg_key_primary_keyid"], name: "index_gpg_signatures_on_gpg_key_primary_keyid", using: :btree
+  add_index "gpg_signatures", ["project_id"], name: "index_gpg_signatures_on_project_id", using: :btree
+
   create_table "identities", force: :cascade do |t|
     t.string "extern_uid"
     t.string "provider"
@@ -997,6 +1027,7 @@ ActiveRecord::Schema.define(version: 20170725145659) do
     t.datetime "updated_at"
     t.integer "owner_id"
     t.string "owner_type"
+    t.boolean "trusted", default: false, null: false
   end
 
   add_index "oauth_applications", ["owner_id", "owner_type"], name: "index_oauth_applications_on_owner_id_and_owner_type", using: :btree
@@ -1602,6 +1633,9 @@ ActiveRecord::Schema.define(version: 20170725145659) do
   add_foreign_key "environments", "projects", name: "fk_d1c8c1da6a", on_delete: :cascade
   add_foreign_key "events", "projects", name: "fk_0434b48643", on_delete: :cascade
   add_foreign_key "forked_project_links", "projects", column: "forked_to_project_id", name: "fk_434510edb0", on_delete: :cascade
+  add_foreign_key "gpg_keys", "users", on_delete: :cascade
+  add_foreign_key "gpg_signatures", "gpg_keys", on_delete: :nullify
+  add_foreign_key "gpg_signatures", "projects", on_delete: :cascade
   add_foreign_key "issue_assignees", "issues", name: "fk_b7d881734a", on_delete: :cascade
   add_foreign_key "issue_assignees", "users", name: "fk_5e0c8d9154", on_delete: :cascade
   add_foreign_key "issue_metrics", "issues", on_delete: :cascade

doc/README.md

@@ -36,9 +36,10 @@ Shortcuts to GitLab's most visited docs:
 
 ### User account
 
-- [User documentation](user/index.md)
-- [Authentication](topics/authentication/index.md): Account security with two-factor authentication, setup your ssh keys and deploy keys for secure access to your projects.
-- [Profile settings](profile/README.md): Manage your profile settings, two factor authentication and more.
+- [User documentation](user/index.md): Learn how to use GitLab and explore its features
+- [User account](user/profile/index.md): Manage your account
+  - [Authentication](topics/authentication/index.md): Account security with two-factor authentication, setup your ssh keys and deploy keys for secure access to your projects.
+  - [Profile settings](user/profile/index.md#profile-settings): Manage your profile settings, two factor authentication and more.
 - [User permissions](user/permissions.md): Learn what each role in a project (external/guest/reporter/developer/master/owner) can do.
 
 ### Projects and groups
@@ -56,7 +57,7 @@ Shortcuts to GitLab's most visited docs:
 
 ### Repository
 
-Manage files and branches from the UI (user interface):
+Manage your [repositories](user/project/repository/index.md) from the UI (user interface):
 
 - Files
   - [Create a file](user/project/repository/web_editor.md#create-a-file)
@@ -89,6 +90,7 @@ Manage files and branches from the UI (user interface):
 - [Git](topics/git/index.md): Getting started with Git, branching strategies, Git LFS, advanced use.
 - [Git cheatsheet](https://gitlab.com/gitlab-com/marketing/raw/master/design/print/git-cheatsheet/print-pdf/git-cheatsheet.pdf): Download a PDF describing the most used Git operations.
 - [GitLab Flow](workflow/gitlab_flow.md): explore the best of Git with the GitLab Flow strategy.
+- [Signing commits](workflow/gpg_signed_commits/index.md): use GPG to sign your commits.
 
 ### Migrate and import your projects from other platforms
 

doc/administration/high_availability/gitlab.md

@@ -5,7 +5,7 @@ configure the GitLab application server(s) now. Complete the steps below
 for each GitLab application server in your environment.
 
 > **Note:** There is some additional configuration near the bottom for
-  secondary GitLab application servers. It's important to read and understand
+  additional GitLab application servers. It's important to read and understand
   these additional steps before proceeding with GitLab installation.
 
 1. If necessary, install the NFS client utility packages using the following
@@ -72,14 +72,14 @@ for each GitLab application server in your environment.
     ```
     
     > **Note:** To maintain uniformity of links across HA clusters, the `external_url` 
-    on the master as well as all secondary application servers should point to the 
-    eventual url that users will use to access GitLab. In a typical HA setup, 
-    this will be the url of the load balancer which will route traffic to all 
-    GitLab application servers in the HA cluster. 
+    on the first application server as well as the additional application 
+    servers should point to the external url that users will use to access GitLab. 
+    In a typical HA setup, this will be the url of the load balancer which will
+    route traffic to all GitLab application servers in the HA cluster. 
 
 1. Run `sudo gitlab-ctl reconfigure` to compile the configuration.
 
-## Primary GitLab application server
+## First GitLab application server
 
 As a final step, run the setup rake task on the first GitLab application server.
 It is not necessary to run this on additional application servers.
@@ -95,10 +95,10 @@ It is not necessary to run this on additional application servers.
   [Nginx documentation](http://docs.gitlab.com/omnibus/settings/nginx.html#enable-https)
   for more information.
 
-## Additional configuration for secondary GitLab application servers
+## Extra configuration for additional GitLab application servers
 
-Secondary GitLab servers (servers configured **after** the first GitLab server)
-need some additional configuration.
+Additional GitLab servers (servers configured **after** the first GitLab server)
+need some extra configuration.
 
 1. Configure shared secrets. These values can be obtained from the primary
    GitLab server in `/etc/gitlab/gitlab-secrets.json`. Add these to

doc/api/settings.md

@@ -42,7 +42,6 @@ Example response:
    "gravatar_enabled" : true,
    "sign_in_text" : null,
    "container_registry_token_expire_delay": 5,
-   "repository_storage": "default",
    "repository_storages": ["default"],
    "koding_enabled": false,
    "koding_url": null,
@@ -81,7 +80,6 @@ PUT /application/settings
 | `after_sign_out_path` | string | no | Where to redirect users after logout |
 | `container_registry_token_expire_delay` | integer | no | Container Registry token duration in minutes |
 | `repository_storages` | array of strings | no | A list of names of enabled storage paths, taken from `gitlab.yml`. New projects will be created in one of these stores, chosen at random. |
-| `repository_storage` | string | no | The first entry in `repository_storages`. Deprecated, but retained for compatibility reasons |
 | `enabled_git_access_protocol` | string | no | Enabled protocols for Git access. Allowed values are: `ssh`, `http`, and `nil` to allow both protocols. |
 | `koding_enabled` | boolean | no | Enable Koding integration. Default is `false`. |
 | `koding_url` | string | yes (if `koding_enabled` is `true`) |  The Koding instance URL for integration. |
@@ -121,7 +119,7 @@ Example response:
   "user_oauth_applications": true,
   "after_sign_out_path": "",
   "container_registry_token_expire_delay": 5,
-  "repository_storage": "default",
+  "repository_storages": ["default"],
   "koding_enabled": false,
   "koding_url": null,
   "plantuml_enabled": false,

doc/development/fe_guide/performance.md

@@ -29,11 +29,12 @@ To improve the time to first render we are using lazy loading for images. This w
 the actual image source on the `data-src` attribute. After the HTML is rendered and JavaScript is loaded, 
 the value of `data-src` will be moved to `src` automatically if the image is in the current viewport.
 
-*  Prepare images in HTML for lazy loading by renaming the `src` attribute to `data-src`
+*  Prepare images in HTML for lazy loading by renaming the `src` attribute to `data-src` AND adding the class `lazy`
 *  If you are using the Rails `image_tag` helper, all images will be lazy-loaded by default unless `lazy: false` is provided.
 
 If you are asynchronously adding content which contains lazy images then you need to call the function
-`gl.lazyLoader.searchLazyImages()` which will search for lazy images and load them if needed.
+`gl.lazyLoader.searchLazyImages()` which will search for lazy images and load them if needed. 
+But in general it should be handled automatically through a `MutationObserver` in the lazy loading function.
 
 ## Reducing Asset Footprint
 

doc/integration/oauth_provider.md

@@ -63,6 +63,9 @@ it from the admin area.
 
 ![OAuth admin_applications](img/oauth_provider_admin_application.png)
 
+You're also able to mark an application as _trusted_ when creating it through the admin area. By doing that,
+the user authorization step is automatically skipped for this application.
+
 ---
 
 ## Authorized applications

doc/profile/README.md

-# Profile settings
-
-- [Preferences](../user/profile/preferences.md)
-- [Two-factor Authentication (2FA)](../user/profile/account/two_factor_authentication.md)
-- [Deleting your account](../user/profile/account/delete_account.md)
+This document was moved to [user/profile/account](../user/profile/index.md).

doc/raketasks/backup_restore.md

@@ -5,9 +5,9 @@
 An application data backup creates an archive file that contains the database,
 all repositories and all attachments.
 
-You can only restore a backup to **exactly the same version** of GitLab on which
-it was created. The best way to migrate your repositories from one server to
-another is through backup restore.
+You can only restore a backup to **exactly the same version and type (CE/EE)** 
+of GitLab on which it was created. The best way to migrate your repositories 
+from one server to another is through backup restore.
 
 ## Backup
 
@@ -378,8 +378,8 @@ The [restore prerequisites section](#restore-prerequisites) includes crucial
 information. Make sure to read and test the whole restore process at least once
 before attempting to perform it in a production environment.
 
-You can only restore a backup to **exactly the same version** of GitLab that
-you created it on, for example 9.1.0.
+You can only restore a backup to **exactly the same version and type (CE/EE)** of 
+GitLab that you created it on, for example CE 9.1.0.
 
 ### Restore prerequisites
 
@@ -450,8 +450,8 @@ Deleting tmp directories...[DONE]
 
 This procedure assumes that:
 
-- You have installed the **exact same version** of GitLab Omnibus with which the
-  backup was created.
+- You have installed the **exact same version and type (CE/EE)** of GitLab 
+  Omnibus with which the backup was created.
 - You have run `sudo gitlab-ctl reconfigure` at least once.
 - GitLab is running.  If not, start it using `sudo gitlab-ctl start`.
 

doc/user/index.md

@@ -71,6 +71,11 @@ your code, use it as an issue tracker, collaborate on code, and continuously
 build, test, and deploy your app with built-in GitLab CI/CD. Or, you can do
 it all at once, from one single project.
 
+### Repository
+
+Host your codebase in [GitLab repositories](project/repository/index.md) with version control
+and as part of a fully integrated platform.
+
 ### Issues
 
 Explore the best of GitLab [Issues](project/issues/index.md).
@@ -121,8 +126,8 @@ Groups can also be nested in [subgroups](group/subgroups/index.md).
 There is a lot you can customize and configure
 to enjoy the best of GitLab.
 
-Manage your user settings to change your personal info,
-personal access tokens, authorized applications, integrations, etc.
+[Manage your user settings](profile/index.md) to change your personal info,
+personal access tokens, authorized applications, etc.
 
 ### Authentication
 

doc/user/profile/account/index.md

-# Profile settings
 
-## Account
-
-Set up [two-factor authentication](two_factor_authentication.md).
+This document was moved to [../index.md#profile-settings](../index.md#profile-settings).

doc/user/profile/index.md

+# User account
+
+When logged into their GitLab account, users can customize their
+experience according to the best approach to their cases.
+
+## Username
+
+Your `username` is a unique [`namespace`](../group/index.md#namespaces)
+related to your user ID.
+
+You can change your `username` from your
+[profile settings](#profile-settings). To avoid breaking
+paths when you change your `username`, we suggest you follow
+[this procedure from the GitLab Team Handbook](https://about.gitlab.com/handbook/tools-and-tips/#how-to-change-your-username-at-gitlabcom).
+
+## User profile
+
+Your profile is available from the up-right corner menu bar (user's avatar) > **Profile**,
+or from `https://example.gitlab.com/username`.
+
+On your profile page, you will see the following information:
+
+- Personal information
+- Activity stream: see your activity streamline and the history of your contributions
+- Groups: [groups](../group/index.md) you're a member of
+- Contributed projects: projects you contributed to
+- Personal projects: your personal projects (respecting the project's visibility level)
+- Snippets: your personal code [snippets](../snippets.md#personal-snippets)
+
+## Profile settings
+
+You can edit your account settings by navigating from the up-right corner menu bar
+(user's avatar) > **Settings**, or visiting `https://example.gitlab.com/profile`.
+
+From there, you can:
+
+- Update your personal information
+- Manage [private tokens](../../api/README.md#private-tokens), email tokens, [2FA](account/two_factor_authentication.md)
+- Change your username and [delete your account](account/delete_account.md)
+- Manage applications that can
+[use GitLab as an OAuth provider](../../integration/oauth_provider.md#introduction-to-oauth)
+- Manage [personal access tokens](personal_access_tokens.md) to access your account via API and authorized applications
+- Add and delete emails linked to your account
+- Manage [SSH keys](../../ssh/README.md#ssh) to access your account via SSH
+- Manage your [preferences](preferences.md#syntax-highlighting-theme)
+to customize your own GitLab experience
+- Acess your audit log, a security log of important events involving your account

doc/user/project/issues/issues_functionalities.md

@@ -58,17 +58,15 @@ Learn more on the [Multiple Assignees documentation](https://docs.gitlab.com/ee/
 
 - Select a [milestone](../milestones/index.md) to attribute that issue to.
 
-#### 5. Time Tracking (EES/EEP)
-
-This feature is available only in [GitLab Enterprise Edition](https://about.gitlab.com/gitlab-ee/).
+#### 5. Time Tracking
 
 - Estimate time: add an estimate time in which the issue will be implemented
 - Spend: add the time spent on the implementation of that issue
 
 > **Note:**
-both estimate and spend times are set via [GitLab Quick Actions](../quick_actions.md).
+Both estimate and spend times are set via [GitLab Quick Actions](../quick_actions.md).
 
-Learn more on the [Time Tracking documentation](https://docs.gitlab.com/ee/workflow/time_tracking.html).
+Learn more on the [Time Tracking documentation](../../../workflow/time_tracking.md).
 
 #### 6. Due date
 

doc/user/project/repository/index.md

+# Repository
+
+A [repository](https://git-scm.com/book/en/v2/Git-Basics-Getting-a-Git-Repository)
+is what you use to store your codebase in GitLab and change it with version control.
+A repository is part of a project, which has a lot of other features.
+
+## Create a repository
+
+To create a new repository, all you need to do is
+[create a new project](../../../gitlab-basics/create-project.md).
+
+Once you create a new project, you can add new files via UI
+(read the section below) or via command line.
+To add files from the command line, follow the instructions that will
+be presented on the screen when you create a new project, or read
+through them in the [command line basics](../../../gitlab-basics/start-using-git.md)
+documentation.
+
+> **Important:**
+For security reasons, when using the command line, we strongly recommend
+you to [connect with GitLab via SSH](../../../ssh/README.md).
+
+## Create and edit files
+
+Host your codebase in GitLab repositories by pushing your files to GitLab.
+You can either use the user interface (UI), or connect your local computer
+with GitLab [through the command line](../../../gitlab-basics/command-line-commands.md#start-working-on-your-project).
+
+To configure [GitLab CI/CD](../../../ci/README.md) to build, test, and deploy
+you code, add a file called [.`gitlab-ci.yml`](../../../ci/quick_start/README.md)
+to your repository's root.
+
+**From the user interface:**
+
+GitLab's UI allows you to perform lots of Git commands without having to
+touch the command line. Even if you use the command line regularly, sometimes
+it's easier to do so [via GitLab UI](web_editor.md):
+
+- [Create a file](web_editor.md#create-a-file)
+- [Upload a file](web_editor.md#upload-a-file)
+- [File templates](web_editor.md#template-dropdowns)
+- [Create a directory](web_editor.md#create-a-directory)
+- [Start a merge request](web_editor.md#tips)
+
+**From the command line:**
+
+To get started with the command line, please read through the
+[command line basics documentation](../../../gitlab-basics/command-line-commands.md).
+
+## Branches
+
+When you submit changes in a new branch, you create a new version
+of that project's file tree. Your branch contains all the changes
+you are presenting, which are detected by Git line by line.
+
+To continue your workflow, once you pushed your changes to a new branch,
+you can create a [merge request](../merge_requests/index.md), perform
+inline code review, and [discuss](../../discussions/index.md)
+your implementation with your team.
+You can live preview changes submitted to a new branch with
+[Review Apps](../../../ci/review_apps/index.md).
+
+With [GitLab Enterprise Edition](https://about.gitlab.com/gitlab-ee/)
+subscriptions, you can also request
+[approval](https://docs.gitlab.com/ee/user/project/merge_requests/merge_request_approvals.html#merge-request-approvals) from your managers.
+
+To create, delete, and branches via GitLab's UI:
+
+- [Create a branch](web_editor.md#create-a-new-branch)
+- [Protected branches](../protected_branches.md#protected-branches)
+- [Delete merged branches](branches/index.md#delete-merged-branches)
+
+Alternatively, you can use the
+[command line](../../../gitlab-basics/start-using-git.md#create-a-branch).
+
+To learn more about branching strategies read through the
+[GitLab Flow](../../../university/training/gitlab_flow.md) documentation.
+
+## Commits
+
+When you [commit your changes](https://git-scm.com/book/en/v2/Git-Basics-Recording-Changes-to-the-Repository),
+you are introducing those changes to your branch.
+Via command line, you can commit multiple times before pushing.
+
+- **Commit message:**
+A commit message is important to identity what is being changed and,
+more importantly, why. In GitLab, you can add keywords to the commit
+message that will perform one of the actions below:
+  - **Trigger a GitLab CI/CD pipeline:**
+  If you have your project configured with [GitLab CI/CD](../../../ci/README.md),
+  you will trigger a pipeline per push, not per commit.
+  - **Skip pipelines:**
+  You can add to you commit message the keyword
+  [`[ci skip]`](../../../ci/yaml/README.html#skipping-jobs)
+  and GitLab CI will skip that pipeline.
+  - **Cross-link issues and merge requests:**
+  [Cross-linking](../issues/crosslinking_issues.md#from-commit-messages)
+  is great to keep track of what's is somehow related in your workflow.
+  If you mention an issue or a merge request in a commit message, they will be shown
+  on their respective thread.
+- **Cherry-pick a commit:**
+In GitLab, you can
+[cherry-pick a commit](../merge_requests/cherry_pick_changes.md#cherry-picking-a-commit)
+right from the UI.
+- **Revert a commit:**
+Easily [revert a commit](../merge_requests/revert_changes.md#reverting-a-commit)
+from the UI to a selected branch.
+
+## Repository size
+
+In GitLab.com, your repository size limit it 10GB. For other instances,
+the repository size is limited by your system administrators.
+
+You can also [reduce a repository size using Git](reducing_the_repo_size_using_git.md).
+
+## Contributors
+
+All the contributors to your codebase are displayed under your project's **Settings > Contributors**.
+
+They are ordered from the collaborator with the greatest number
+of commits to the fewest, and displayed on a nice graph:
+
+![contributors to code](img/contributors_graph.png)
+
+## Repository graph
+
+The repository graph displays visually the Git flow strategy used in that repository:
+
+![repository Git flow](img/repo_graph.png)
+
+Find it under your project's **Repository > Graph**.
+
+## Compare
+
+Select branches to compare and view the changes inline:
+
+![compare branches](img/compare_branches.png)
+
+Find it under your project's **Repository > Compare**.
+
+## Locked files (EEP)
+
+Lock your files to prevent any conflicting changes.
+
+[File Locking](https://docs.gitlab.com/ee/user/project/file_lock.html) is available only in
+[GitLab Enterprise Edition Premium](https://about.gitlab.com/gitlab-ee/).
+
+## Repository's API
+
+You can access your repos via [repository API](../../../api/repositories.md).

doc/user/project/repository/reducing_the_repo_size_using_git.md

+# Reducing the repository size using Git
+
+A GitLab Entrerprise Edition administrator can set a [repository size limit][admin-repo-size]
+which will prevent you to exceed it.
+
+When a project has reached its size limit, you will not be able to push to it,
+create a new merge request, or merge existing ones. You will still be able to
+create new issues, and clone the project though. Uploading LFS objects will
+also be denied.
+
+In order to lift these restrictions, the administrator of the GitLab instance
+needs to increase the limit on the particular project that exceeded it or you
+need to instruct Git to rewrite changes.
+
+If you exceed the repository size limit, your first thought might be to remove
+some data, make a new commit and push back to the repository. Unfortunately,
+it's not so easy and that workflow won't work. Deleting files in a commit doesn't
+actually reduce the size of the repo since the earlier commits and blobs are
+still around. What you need to do is rewrite history with Git's
+[`filter-branch` option][gitscm].
+
+Note that even with that method, until `git gc` runs on the GitLab side, the
+"removed" commits and blobs will still be around. And if a commit was ever
+included in an MR, or if a build was run for a commit, or if a user commented
+on it, it will be kept around too. So, in these cases the size will not decrease.
+
+The only fool proof way to actually decrease the repository size is to prune all
+the unneeded stuff locally, and then create a new project on GitLab and start
+using that instead.
+
+With that being said, you can try reducing your repository size with the
+following method.
+
+## Using `git filter-branch` to purge files
+
+>
+**Warning:**
+Make sure to first make a copy of your repository since rewriting history will
+purge the files and information you are about to delete. Also make sure to
+inform any collaborators to not use `pull` after your changes, but use `rebase`.
+
+1. Navigate to your repository:
+
+    ```
+    cd my_repository/
+    ```
+
+1. Change to the branch you want to remove the big file from:
+
+    ```
+    git checkout master
+    ```
+
+1. Use `filter-branch` to remove the big file:
+
+    ```
+    git filter-branch --force --tree-filter 'rm -f path/to/big_file.mpg' HEAD
+    ```
+
+1. Instruct Git to purge the unwanted data:
+
+    ```
+    git reflog expire --expire=now --all && git gc --prune=now --aggressive
+    ```
+
+1. Lastly, force push to the repository:
+
+    ```
+    git push --force origin master
+    ```
+
+Your repository should now be below the size limit.
+
+>**Note:**
+As an alternative to `filter-branch`, you can use the `bfg` tool with a
+command like: `bfg --delete-files path/to/big_file.mpg`. Read the
+[BFG Repo-Cleaner][bfg] documentation for more information.
+
+[admin-repo-size]: https://docs.gitlab.com/ee/user/admin_area/settings/account_and_limit_settings.html#repository-size-limit
+[bfg]: https://rtyley.github.io/bfg-repo-cleaner/
+[gitscm]: https://git-scm.com/book/en/v2/Git-Tools-Rewriting-History#The-Nuclear-Option:-filter-branch

doc/workflow/gpg_signed_commits/index.md

+# Signing commits with GPG
+
+## Getting started
+
+- [Git Tools - Signing Your Work](https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work)
+- [Git Tools - Signing Your Work: GPG introduction](https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work#_gpg_introduction)
+- [Git Tools - Signing Your Work: Signing commits](https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work#_signing_commits)
+
+## How GitLab handles GPG
+
+GitLab uses its own keyring to verify the GPG signature. It does not access any
+public key server.
+
+In order to have a commit verified on GitLab the corresponding public key needs
+to be uploaded to GitLab.
+
+For a signature to be verified two prerequisites need to be met:
+
+1. The public key needs to be added to GitLab
+1. One of the emails in the GPG key matches your **primary** email
+
+## Add a GPG key
+
+1. On the upper right corner, click on your avatar and go to your **Settings**.
+
+    ![Settings dropdown](../../gitlab-basics/img/profile_settings.png)
+
+1. Navigate to the **GPG keys** tab.
+
+    ![GPG Keys](img/profile_settings_gpg_keys.png)
+
+1. Paste your **public** key in the 'Key' box.
+
+    ![Paste GPG public key](img/profile_settings_gpg_keys_paste_pub.png)
+
+1. Finally, click on **Add key** to add it to GitLab. You will be able to see
+   its fingerprint, the corresponding email address and creation date.
+
+    ![GPG key single page](img/profile_settings_gpg_keys_single_key.png)
+
+>**Note:**
+Once you add a key, you cannot edit it, only remove it. In case the paste
+didn't work, you will have to remove the offending key and re-add it.
+
+## Remove a GPG key
+
+1. On the upper right corner, click on your avatar and go to your **Settings**.
+
+1. Navigate to the **GPG keys** tab.
+
+1. Click on the trash icon besides the GPG key you want to delete.
+
+>**Note:**
+Removing a key **does not unverify** already signed commits. Commits that were
+verified by using this key will stay verified. Only unpushed commits will stay
+unverified once you remove this key.
+
+## Revoke a GPG key
+
+1. On the upper right corner, click on your avatar and go to your **Settings**.
+
+1. Navigate to the **GPG keys** tab.
+
+1. Click on **Revoke** besides the GPG key you want to delete.
+
+>**Note:**
+Revoking a key **unverifies** already signed commits. Commits that were
+verified by using this key will change to an unverified state. Future commits
+will also stay unverified once you revoke this key. This action should be used
+in case your key has been compromised.
+
+## Verifying commits
+
+1. Within a project navigate to the **Commits** tag. Signed commits will show a
+   badge containing either "Verified" or "Unverified", depending on the
+   verification status of the GPG signature.
+
+    ![Signed and unsigned commits](img/project_signed_and_unsigned_commits.png)
+
+1. By clicking on the GPG badge details of the signature are displayed.
+
+    ![Signed commit with verified signature](img/project_signed_commit_verified_signature.png)
+
+    ![Signed commit with verified signature](img/project_signed_commit_unverified_signature.png)

features/steps/project/wiki.rb

@@ -63,7 +63,7 @@ class Spinach::Features::ProjectWiki < Spinach::FeatureSteps
   end
 
   step 'That page has two revisions' do
-    @page.update("new content", :markdown, "second commit")
+    @page.update("new content", message: "second commit")
   end
 
   step 'I click the History button' do

lib/api/entities.rb

@@ -671,43 +671,14 @@ module API
 
     class ApplicationSetting < Grape::Entity
       expose :id
-      expose :default_projects_limit
-      expose :signup_enabled
-      expose :password_authentication_enabled
-      expose :password_authentication_enabled, as: :signin_enabled
-      expose :gravatar_enabled
-      expose :sign_in_text
-      expose :after_sign_up_text
-      expose :created_at
-      expose :updated_at
-      expose :home_page_url
-      expose :default_branch_protection
+      expose(*::ApplicationSettingsHelper.visible_attributes)
       expose(:restricted_visibility_levels) do |setting, _options|
         setting.restricted_visibility_levels.map { |level| Gitlab::VisibilityLevel.string_level(level) }
       end
-      expose :max_attachment_size
-      expose :session_expire_delay
       expose(:default_project_visibility) { |setting, _options| Gitlab::VisibilityLevel.string_level(setting.default_project_visibility) }
       expose(:default_snippet_visibility) { |setting, _options| Gitlab::VisibilityLevel.string_level(setting.default_snippet_visibility) }
       expose(:default_group_visibility) { |setting, _options| Gitlab::VisibilityLevel.string_level(setting.default_group_visibility) }
-      expose :default_artifacts_expire_in
-      expose :domain_whitelist
-      expose :domain_blacklist_enabled
-      expose :domain_blacklist
-      expose :user_oauth_applications
-      expose :after_sign_out_path
-      expose :container_registry_token_expire_delay
-      expose :repository_storage
-      expose :repository_storages
-      expose :koding_enabled
-      expose :koding_url
-      expose :plantuml_enabled
-      expose :plantuml_url
-      expose :terminal_max_session_time
-      expose :polling_interval_multiplier
-      expose :help_page_hide_commercial_content
-      expose :help_page_text
-      expose :help_page_support_url
+      expose :password_authentication_enabled, as: :signin_enabled
     end
 
     class Release < Grape::Entity

lib/api/settings.rb

@@ -20,59 +20,6 @@ module API
       success Entities::ApplicationSetting
     end
     params do
-      # CE
-      at_least_one_of_ce = [
-        :admin_notification_email,
-        :after_sign_out_path,
-        :after_sign_up_text,
-        :akismet_enabled,
-        :container_registry_token_expire_delay,
-        :default_artifacts_expire_in,
-        :default_branch_protection,
-        :default_group_visibility,
-        :default_project_visibility,
-        :default_projects_limit,
-        :default_snippet_visibility,
-        :disabled_oauth_sign_in_sources,
-        :domain_blacklist_enabled,
-        :domain_whitelist,
-        :email_author_in_body,
-        :enabled_git_access_protocol,
-        :gravatar_enabled,
-        :help_page_hide_commercial_content,
-        :help_page_text,
-        :help_page_support_url,
-        :home_page_url,
-        :housekeeping_enabled,
-        :html_emails_enabled,
-        :import_sources,
-        :koding_enabled,
-        :max_artifacts_size,
-        :max_attachment_size,
-        :max_pages_size,
-        :metrics_enabled,
-        :plantuml_enabled,
-        :polling_interval_multiplier,
-        :recaptcha_enabled,
-        :repository_checks_enabled,
-        :repository_storage,
-        :require_two_factor_authentication,
-        :restricted_visibility_levels,
-        :send_user_confirmation_email,
-        :sentry_enabled,
-        :clientside_sentry_enabled,
-        :session_expire_delay,
-        :shared_runners_enabled,
-        :sidekiq_throttling_enabled,
-        :sign_in_text,
-        :password_authentication_enabled,
-        :signin_enabled,
-        :signup_enabled,
-        :terminal_max_session_time,
-        :user_default_external,
-        :user_oauth_applications,
-        :version_check_enabled
-      ]
       optional :default_branch_protection, type: Integer, values: [0, 1, 2], desc: 'Determine if developers can push to master'
       optional :default_project_visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The default project visibility'
       optional :default_snippet_visibility, type: String, values: Gitlab::VisibilityLevel.string_values, desc: 'The default snippet visibility'
@@ -151,7 +98,7 @@ module API
       given clientside_sentry_enabled: ->(val) { val } do
         requires :clientside_sentry_dsn, type: String, desc: 'Clientside Sentry Data Source Name'
       end
-      optional :repository_storage, type: String, desc: 'Storage paths for new projects'
+      optional :repository_storages, type: Array[String], desc: 'Storage paths for new projects'
       optional :repository_checks_enabled, type: Boolean, desc: "GitLab will periodically run 'git fsck' in all project and wiki repositories to look for silent disk corruption issues."
       optional :koding_enabled, type: Boolean, desc: 'Enable Koding'
       given koding_enabled: ->(val) { val } do
@@ -174,7 +121,8 @@ module API
       optional :terminal_max_session_time, type: Integer, desc: 'Maximum time for web terminal websocket connection (in seconds). Set to 0 for unlimited time.'
       optional :polling_interval_multiplier, type: BigDecimal, desc: 'Interval multiplier used by endpoints that perform polling. Set to 0 to disable polling.'
 
-      at_least_one_of(*at_least_one_of_ce)
+      optional(*::ApplicationSettingsHelper.visible_attributes)
+      at_least_one_of(*::ApplicationSettingsHelper.visible_attributes)
     end
     put "application/settings" do
       attrs = declared_params(include_missing: false)