Merge remote-tracking branch 'origin/master' into artifacts-expire-date

26 files changed, 621 insertions, 178 deletions

diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3dc48a89463..f1dcf990629 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -7,7 +7,8 @@ services:
 cache:
   key: "ruby21"
   paths:
-  - vendor
+  - vendor/apt
+  - vendor/ruby
 
 variables:
   MYSQL_ALLOW_EMPTY_PASSWORD: "1"
diff --git a/CHANGELOG b/CHANGELOG
index 1f6c1d40e63..7a6a14919da 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -10,6 +10,7 @@ v 8.9.0 (unreleased)
   - Fix issue with arrow keys not working in search autocomplete dropdown
   - Make EmailsOnPushWorker use Sidekiq mailers queue
   - Fix wiki page events' webhook to point to the wiki repository
+  - Don't show tags for revert and cherry-pick operations
   - Fix issue todo not remove when leave project !4150 (Long Nguyen)
   - Allow customisable text on the 'nearly there' page after a user signs up
   - Bump recaptcha gem to 3.0.0 to remove deprecated stoken support
@@ -58,6 +59,7 @@ v 8.9.0 (unreleased)
   - Improve error handling importing projects
   - Remove duplicated notification settings
   - Put project Files and Commits tabs under Code tab
+  - Decouple global notification level from user model
   - Replace Colorize with Rainbow for coloring console output in Rake tasks.
   - Add workhorse controller and API helpers
   - An indicator is now displayed at the top of the comment field for confidential issues.
@@ -69,6 +71,7 @@ v 8.9.0 (unreleased)
   - Improved UX of date pickers on issue & milestone forms
   - Cache on the database if a project has an active external issue tracker.
   - Put project Labels and Milestones pages links under Issues and Merge Requests tabs as subnav
+  - All classes in the Banzai::ReferenceParser namespace are now instrumented
 
 v 8.8.5 (unreleased)
   - Ensure branch cleanup regardless of whether the GitHub import process succeeds
diff --git a/app/controllers/profiles/notifications_controller.rb b/app/controllers/profiles/notifications_controller.rb
index 18ee55c839a..40d1906a53f 100644
--- a/app/controllers/profiles/notifications_controller.rb
+++ b/app/controllers/profiles/notifications_controller.rb
@@ -1,12 +1,13 @@
 class Profiles::NotificationsController < Profiles::ApplicationController
   def show
-    @user = current_user
-    @group_notifications = current_user.notification_settings.for_groups
-    @project_notifications = current_user.notification_settings.for_projects
+    @user                        = current_user
+    @group_notifications         = current_user.notification_settings.for_groups
+    @project_notifications       = current_user.notification_settings.for_projects
+    @global_notification_setting = current_user.global_notification_setting
   end
 
   def update
-    if current_user.update_attributes(user_params)
+    if current_user.update_attributes(user_params) && update_notification_settings
       flash[:notice] = "Notification settings saved"
     else
       flash[:alert] = "Failed to save new settings"
@@ -16,6 +17,18 @@ class Profiles::NotificationsController < Profiles::ApplicationController
   end
 
   def user_params
-    params.require(:user).permit(:notification_email, :notification_level)
+    params.require(:user).permit(:notification_email)
+  end
+
+  def global_notification_setting_params
+    params.require(:global_notification_setting).permit(:level)
+  end
+
+  private
+
+  def update_notification_settings
+    return true unless global_notification_setting_params
+
+    current_user.global_notification_setting.update_attributes(global_notification_setting_params)
   end
 end
diff --git a/app/helpers/branches_helper.rb b/app/helpers/branches_helper.rb
index e39548e17e1..3ee3fc74f0c 100644
--- a/app/helpers/branches_helper.rb
+++ b/app/helpers/branches_helper.rb
@@ -14,4 +14,8 @@ module BranchesHelper
 
     ::Gitlab::GitAccess.new(current_user, project).can_push_to_branch?(branch_name)
   end
+
+  def project_branches
+    options_for_select(@project.repository.branch_names, @project.default_branch)
+  end
 end
diff --git a/app/helpers/notifications_helper.rb b/app/helpers/notifications_helper.rb
index b8e64b3890a..50c21fc0d49 100644
--- a/app/helpers/notifications_helper.rb
+++ b/app/helpers/notifications_helper.rb
@@ -61,4 +61,23 @@ module NotificationsHelper
       end
     end
   end
+
+  def notification_level_radio_buttons
+    html = ""
+
+    NotificationSetting.levels.each_key do |level|
+      level = level.to_sym
+      next if level == :global
+
+      html << content_tag(:div, class: "radio") do
+        content_tag(:label, { value: level }) do
+          radio_button_tag(:"global_notification_setting[level]", level, @global_notification_setting.level.to_sym == level) +
+          content_tag(:div, level.to_s.capitalize, class: "level-title") +
+          content_tag(:p, notification_description(level))
+        end
+      end
+    end
+
+    html.html_safe
+  end
 end
diff --git a/app/models/notification_setting.rb b/app/models/notification_setting.rb
index 17fb15b08df..0ce87968e46 100644
--- a/app/models/notification_setting.rb
+++ b/app/models/notification_setting.rb
@@ -7,7 +7,6 @@ class NotificationSetting < ActiveRecord::Base
   belongs_to :source, polymorphic: true
 
   validates :user, presence: true
-  validates :source, presence: true
   validates :level, presence: true
   validates :user_id, uniqueness: { scope: [:source_type, :source_id],
                                     message: "already exists in source",
diff --git a/app/models/user.rb b/app/models/user.rb
index e0987e07e1f..7afbfbf112a 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -10,6 +10,8 @@ class User < ActiveRecord::Base
   include CaseSensitivity
   include TokenAuthenticatable
 
+  DEFAULT_NOTIFICATION_LEVEL = :participating
+
   add_authentication_token_field :authentication_token
 
   default_value_for :admin, false
@@ -99,7 +101,6 @@ class User < ActiveRecord::Base
     presence: true,
     uniqueness: { case_sensitive: false }
 
-  validates :notification_level, presence: true
   validate :namespace_uniq, if: ->(user) { user.username_changed? }
   validate :avatar_type, if: ->(user) { user.avatar.present? && user.avatar_changed? }
   validate :unique_email, if: ->(user) { user.email_changed? }
@@ -133,13 +134,6 @@ class User < ActiveRecord::Base
   # Note: When adding an option, it MUST go on the end of the array.
   enum project_view: [:readme, :activity, :files]
 
-  # Notification level
-  # Note: When adding an option, it MUST go on the end of the array.
-  #
-  # TODO: Add '_prefix: :notification' to enum when update to Rails 5. https://github.com/rails/rails/pull/19813
-  # Because user.notification_disabled? is much better than user.disabled?
-  enum notification_level: [:disabled, :participating, :watch, :global, :mention]
-
   alias_attribute :private_token, :authentication_token
 
   delegate :path, to: :namespace, allow_nil: true, prefix: true
@@ -800,6 +794,17 @@ class User < ActiveRecord::Base
     notification_settings.find_or_initialize_by(source: source)
   end
 
+  # Lazy load global notification setting
+  # Initializes User setting with Participating level if setting not persisted
+  def global_notification_setting
+    return @global_notification_setting if defined?(@global_notification_setting)
+
+    @global_notification_setting = notification_settings.find_or_initialize_by(source: nil)
+    @global_notification_setting.update_attributes(level: NotificationSetting.levels[DEFAULT_NOTIFICATION_LEVEL]) unless @global_notification_setting.persisted?
+
+    @global_notification_setting
+  end
+
   def assigned_open_merge_request_count(force: false)
     Rails.cache.fetch(['users', id, 'assigned_open_merge_request_count'], force: force) do
       assigned_merge_requests.opened.count
diff --git a/app/services/notification_service.rb b/app/services/notification_service.rb
index 91ca82ed3b7..875a3f4fab6 100644
--- a/app/services/notification_service.rb
+++ b/app/services/notification_service.rb
@@ -279,10 +279,11 @@ class NotificationService
   end
 
   def users_with_global_level_watch(ids)
-    User.where(
-      id: ids,
-      notification_level: NotificationSetting.levels[:watch]
-    ).pluck(:id)
+    NotificationSetting.where(
+      user_id: ids,
+      source_type: nil,
+      level: NotificationSetting.levels[:watch]
+    ).pluck(:user_id)
   end
 
   # Build a list of users based on project notifcation settings
@@ -352,7 +353,9 @@ class NotificationService
     users = users.reject(&:blocked?)
 
     users.reject do |user|
-      next user.notification_level == level unless project
+      global_notification_setting = user.global_notification_setting
+
+      next global_notification_setting.level == level unless project
 
       setting = user.notification_settings_for(project)
 
@@ -361,13 +364,13 @@ class NotificationService
       end
 
       # reject users who globally set mention notification and has no setting per project/group
-      next user.notification_level == level unless setting
+      next global_notification_setting.level == level unless setting
 
       # reject users who set mention notification in project
       next true if setting.level == level
 
       # reject users who have mention level in project and disabled in global settings
-      setting.global? && user.notification_level == level
+      setting.global? && global_notification_setting.level == level
     end
   end
 
@@ -456,7 +459,6 @@ class NotificationService
 
   def build_recipients(target, project, current_user, action: nil, previous_assignee: nil)
     recipients = target.participants(current_user)
-
     recipients = add_project_watchers(recipients, project)
     recipients = reject_mention_users(recipients, project)
 
diff --git a/app/views/profiles/notifications/_group_settings.html.haml b/app/views/profiles/notifications/_group_settings.html.haml
index 89ae7ffda2b..f0cf82afe83 100644
--- a/app/views/profiles/notifications/_group_settings.html.haml
+++ b/app/views/profiles/notifications/_group_settings.html.haml
@@ -1,7 +1,7 @@
 %li.notification-list-item
   %span.notification.fa.fa-holder.append-right-5
     - if setting.global?
-      = notification_icon(current_user.notification_level)
+      = notification_icon(current_user.global_notification_setting.level)
     - else
       = notification_icon(setting.level)
 
diff --git a/app/views/profiles/notifications/_project_settings.html.haml b/app/views/profiles/notifications/_project_settings.html.haml
index 17c097154da..e0fad555c09 100644
--- a/app/views/profiles/notifications/_project_settings.html.haml
+++ b/app/views/profiles/notifications/_project_settings.html.haml
@@ -1,7 +1,7 @@
 %li.notification-list-item
   %span.notification.fa.fa-holder.append-right-5
     - if setting.global?
-      = notification_icon(current_user.notification_level)
+      = notification_icon(current_user.global_notification_setting.level)
     - else
       = notification_icon(setting.level)
 
diff --git a/app/views/profiles/notifications/show.html.haml b/app/views/profiles/notifications/show.html.haml
index 7696f112bb3..f2659ac14b5 100644
--- a/app/views/profiles/notifications/show.html.haml
+++ b/app/views/profiles/notifications/show.html.haml
@@ -26,33 +26,7 @@
           = f.select :notification_email, @user.all_emails, { include_blank: false }, class: "select2"
         .form-group
           = f.label :notification_level, class: 'label-light'
-          .radio
-            = f.label :notification_level, value: :disabled do
-              = f.radio_button :notification_level, :disabled
-              .level-title
-                Disabled
-              %p You will not get any notifications via email
-
-          .radio
-            = f.label :notification_level, value: :mention do
-              = f.radio_button :notification_level, :mention
-              .level-title
-                On Mention
-              %p You will receive notifications only for comments in which you were @mentioned
-
-          .radio
-            = f.label :notification_level, value: :participating do
-              = f.radio_button :notification_level, :participating
-              .level-title
-                Participating
-              %p You will only receive notifications from related resources (e.g. from your commits or assigned issues)
-
-          .radio
-            = f.label :notification_level, value: :watch do
-              = f.radio_button :notification_level, :watch
-              .level-title
-                Watch
-              %p You will receive notifications for any activity
+          = notification_level_radio_buttons
 
         .prepend-top-default
           = f.submit 'Update settings', class: "btn btn-create"
diff --git a/app/views/projects/commit/_change.html.haml b/app/views/projects/commit/_change.html.haml
index 44ef1fdbbe3..d9b800a4ded 100644
--- a/app/views/projects/commit/_change.html.haml
+++ b/app/views/projects/commit/_change.html.haml
@@ -17,7 +17,7 @@
           .form-group.branch
             = label_tag 'target_branch', target_label, class: 'control-label'
             .col-sm-10
-              = select_tag "target_branch", grouped_options_refs, class: "select2 select2-sm js-target-branch"
+              = select_tag "target_branch", project_branches, class: "select2 select2-sm js-target-branch"
               - if can?(current_user, :push_code, @project)
                 .js-create-merge-request-container
                   .checkbox
diff --git a/config/initializers/metrics.rb b/config/initializers/metrics.rb
index 2673093b96a..f6509ee43f1 100644
--- a/config/initializers/metrics.rb
+++ b/config/initializers/metrics.rb
@@ -96,13 +96,18 @@ if Gitlab::Metrics.enabled?
       config.instrument_instance_methods(const)
     end
 
-    # Instruments all Banzai filters
-    Dir[Rails.root.join('lib', 'banzai', 'filter', '*.rb')].each do |file|
-      klass = File.basename(file, File.extname(file)).camelize
-      const = Banzai::Filter.const_get(klass)
+    # Instruments all Banzai filters and reference parsers
+    {
+      Filter: Rails.root.join('lib', 'banzai', 'filter', '*.rb'),
+      ReferenceParser: Rails.root.join('lib', 'banzai', 'reference_parser', '*.rb')
+    }.each do |const_name, path|
+      Dir[path].each do |file|
+        klass = File.basename(file, File.extname(file)).camelize
+        const = Banzai.const_get(const_name).const_get(klass)
 
-      config.instrument_methods(const)
-      config.instrument_instance_methods(const)
+        config.instrument_methods(const)
+        config.instrument_instance_methods(const)
+      end
     end
 
     config.instrument_methods(Banzai::Renderer)
diff --git a/db/migrate/20160610140403_remove_notification_setting_not_null_constraints.rb b/db/migrate/20160610140403_remove_notification_setting_not_null_constraints.rb
new file mode 100644
index 00000000000..259abb08e47
--- /dev/null
+++ b/db/migrate/20160610140403_remove_notification_setting_not_null_constraints.rb
@@ -0,0 +1,11 @@
+class RemoveNotificationSettingNotNullConstraints < ActiveRecord::Migration
+  def up
+    change_column :notification_settings, :source_type, :string, null: true
+    change_column :notification_settings, :source_id, :integer, null: true
+  end
+
+  def down
+    change_column :notification_settings, :source_type, :string, null: false
+    change_column :notification_settings, :source_id, :integer, null: false
+  end
+end
diff --git a/db/migrate/20160610201627_migrate_users_notification_level.rb b/db/migrate/20160610201627_migrate_users_notification_level.rb
new file mode 100644
index 00000000000..760b766828e
--- /dev/null
+++ b/db/migrate/20160610201627_migrate_users_notification_level.rb
@@ -0,0 +1,21 @@
+class MigrateUsersNotificationLevel < ActiveRecord::Migration
+  # Migrates only users who changed their default notification level :participating
+  # creating a new record on notification settings table
+
+  def up
+    execute(%Q{
+      INSERT INTO notification_settings
+      (user_id, level, created_at, updated_at)
+      (SELECT id, notification_level, created_at, updated_at FROM users WHERE notification_level != 1)
+    })
+  end
+
+  # Migrates from notification settings back to user notification_level
+  # If no value is found the default level of 1 will be used
+  def down
+    execute(%Q{
+      UPDATE users u SET
+      notification_level = COALESCE((SELECT level FROM notification_settings WHERE user_id = u.id AND source_type IS NULL), 1)
+    })
+  end
+end
diff --git a/db/migrate/20160610301627_remove_notification_level_from_users.rb b/db/migrate/20160610301627_remove_notification_level_from_users.rb
new file mode 100644
index 00000000000..8afb14df2cf
--- /dev/null
+++ b/db/migrate/20160610301627_remove_notification_level_from_users.rb
@@ -0,0 +1,7 @@
+class RemoveNotificationLevelFromUsers < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  def change
+    remove_column :users, :notification_level, :integer
+  end
+end
diff --git a/doc/README.md b/doc/README.md
index d1345ab2493..5d89d0c9821 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -28,7 +28,7 @@
 - [Integration](integration/README.md) How to integrate with systems such as JIRA, Redmine, Twitter.
 - [Issue closing](customization/issue_closing.md) Customize how to close an issue from commit messages.
 - [Libravatar](customization/libravatar.md) Use Libravatar for user avatars.
-- [Log system](logs/logs.md) Log system.
+- [Log system](administration/logs.md) Log system.
 - [Environment Variables](administration/environment_variables.md) to configure GitLab.
 - [Operations](operations/README.md) Keeping GitLab up and running
 - [Raketasks](raketasks/README.md) Backups, maintenance, automatic webhook setup and the importing of projects.
diff --git a/doc/administration/logs.md b/doc/administration/logs.md
new file mode 100644
index 00000000000..737b39db16c
--- /dev/null
+++ b/doc/administration/logs.md
@@ -0,0 +1,137 @@
+## Log system
+
+GitLab has an advanced log system where everything is logged so that you
+can analyze your instance using various system log files. In addition to
+system log files, GitLab Enterprise Edition comes with Audit Events.
+Find more about them [in Audit Events
+documentation](http://docs.gitlab.com/ee/administration/audit_events.html)
+
+System log files are typically plain text in a standard log file format.
+This guide talks about how to read and use these system log files.
+
+### production.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/production.log` for
+omnibus package or in `/home/git/gitlab/log/production.log` for
+installations from source.
+
+It contains information about all performed requests. You can see the
+URL and type of request, IP address and what exactly parts of code were
+involved to service this particular request. Also you can see all SQL
+request that have been performed and how much time it took. This task is
+more useful for GitLab contributors and developers. Use part of this log
+file when you are going to report bug. For example:
+
+```
+Started GET "/gitlabhq/yaml_db/tree/master" for 168.111.56.1 at 2015-02-12 19:34:53 +0200
+Processing by Projects::TreeController#show as HTML
+  Parameters: {"project_id"=>"gitlabhq/yaml_db", "id"=>"master"}
+
+  ... [CUT OUT]
+
+  Namespaces"."created_at" DESC, "namespaces"."id" DESC LIMIT 1 [["id", 26]]
+  CACHE (0.0ms) SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members"."type" IN ('ProjectMember') AND "members"."source_id" = $1 AND "members"."source_type" = $2 AND "members"."user_id" = 1  ORDER BY "members"."created_at" DESC, "members"."id" DESC LIMIT 1  [["source_id", 18], ["source_type", "Project"]]
+  CACHE (0.0ms) SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members".
+  (1.4ms) SELECT COUNT(*) FROM "merge_requests"  WHERE "merge_requests"."target_project_id" = $1 AND ("merge_requests"."state" IN ('opened','reopened')) [["target_project_id", 18]]
+  Rendered layouts/nav/_project.html.haml (28.0ms)
+  Rendered layouts/_collapse_button.html.haml (0.2ms)
+  Rendered layouts/_flash.html.haml (0.1ms)
+  Rendered layouts/_page.html.haml (32.9ms)
+Completed 200 OK in 166ms (Views: 117.4ms | ActiveRecord: 27.2ms)
+```
+
+In this example we can see that server processed an HTTP request with URL
+`/gitlabhq/yaml_db/tree/master` from IP 168.111.56.1 at 2015-02-12
+19:34:53 +0200. Also we can see that request was processed by
+`Projects::TreeController`.
+
+### application.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/application.log` for
+omnibus package or in `/home/git/gitlab/log/application.log` for
+installations from source.
+
+It helps you discover events happening in your instance such as user creation,
+project removing and so on. For example:
+
+```
+October 06, 2014 11:56: User "Administrator" (admin@example.com) was created
+October 06, 2014 11:56: Documentcloud created a new project "Documentcloud / Underscore"
+October 06, 2014 11:56: Gitlab Org created a new project "Gitlab Org / Gitlab Ce"
+October 07, 2014 11:25: User "Claudie Hodkiewicz" (nasir_stehr@olson.co.uk)  was removed
+October 07, 2014 11:25: Project "project133" was removed
+```
+
+### githost.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/githost.log` for
+omnibus package or in `/home/git/gitlab/log/githost.log` for
+installations from source.
+
+GitLab has to interact with Git repositories but in some rare cases
+something can go wrong and in this case you will know what exactly
+happened. This log file contains all failed requests from GitLab to Git
+repositories. In the majority of cases this file will be useful for developers
+only. For example:
+
+```
+December 03, 2014 13:20 -> ERROR -> Command failed [1]: /usr/bin/git --git-dir=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq/.git --work-tree=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq merge --no-ff -mMerge branch 'feature_conflict' into 'feature' source/feature_conflict
+
+error: failed to push some refs to '/Users/vsizov/gitlab-development-kit/repositories/gitlabhq/gitlab_git.git'
+```
+
+### sidekiq.log
+
+This file lives in `/var/log/gitlab/gitlab-rails/sidekiq.log` for
+omnibus package or in `/home/git/gitlab/log/sidekiq.log` for
+installations from source.
+
+GitLab uses background jobs for processing tasks which can take a long
+time. All information about processing these jobs are written down to
+this file. For example:
+
+```
+2014-06-10T07:55:20Z 2037 TID-tm504 ERROR: /opt/bitnami/apps/discourse/htdocs/vendor/bundle/ruby/1.9.1/gems/redis-3.0.7/lib/redis/client.rb:228:in `read'
+2014-06-10T18:18:26Z 14299 TID-55uqo INFO: Booting Sidekiq 3.0.0 with redis options {:url=>"redis://localhost:6379/0", :namespace=>"sidekiq"}
+```
+
+### gitlab-shell.log
+
+This file lives in `/var/log/gitlab/gitlab-shell/gitlab-shell.log` for
+omnibus package or in `/home/git/gitlab-shell/gitlab-shell.log` for
+installations from source.
+
+GitLab shell is used by Gitlab for executing Git commands and provide
+SSH access to Git repositories. For example:
+
+```
+I, [2015-02-13T06:17:00.671315 #9291]  INFO -- : Adding project root/example.git at </var/opt/gitlab/git-data/repositories/root/dcdcdcdcd.git>.
+I, [2015-02-13T06:17:00.679433 #9291]  INFO -- : Moving existing hooks directory and symlinking global hooks directory for /var/opt/gitlab/git-data/repositories/root/example.git.
+```
+
+### unicorn\_stderr.log
+
+This file lives in `/var/log/gitlab/unicorn/unicorn_stderr.log` for
+omnibus package or in `/home/git/gitlab/log/unicorn_stderr.log` for
+installations from source.
+
+Unicorn is a high-performance forking Web server which is used for
+serving the GitLab application. You can look at this log if, for
+example, your application does not respond. This log contains all
+information about the state of unicorn processes at any given time.
+
+```
+I, [2015-02-13T06:14:46.680381 #9047]  INFO -- : Refreshing Gem list
+I, [2015-02-13T06:14:56.931002 #9047]  INFO -- : listening on addr=127.0.0.1:8080 fd=12
+I, [2015-02-13T06:14:56.931381 #9047]  INFO -- : listening on addr=/var/opt/gitlab/gitlab-rails/sockets/gitlab.socket fd=13
+I, [2015-02-13T06:14:56.936638 #9047]  INFO -- : master process ready
+I, [2015-02-13T06:14:56.946504 #9092]  INFO -- : worker=0 spawned pid=9092
+I, [2015-02-13T06:14:56.946943 #9092]  INFO -- : worker=0 ready
+I, [2015-02-13T06:14:56.947892 #9094]  INFO -- : worker=1 spawned pid=9094
+I, [2015-02-13T06:14:56.948181 #9094]  INFO -- : worker=1 ready
+W, [2015-02-13T07:16:01.312916 #9094]  WARN -- : #<Unicorn::HttpServer:0x0000000208f618>: worker (pid: 9094) exceeds memory limit (320626688 bytes > 247066940 bytes)
+W, [2015-02-13T07:16:01.313000 #9094]  WARN -- : Unicorn::WorkerKiller send SIGQUIT (pid: 9094) alive: 3621 sec (trial 1)
+I, [2015-02-13T07:16:01.530733 #9047]  INFO -- : reaped #<Process::Status: pid 9094 exit 0> worker=1
+I, [2015-02-13T07:16:01.534501 #13379]  INFO -- : worker=1 spawned pid=13379
+I, [2015-02-13T07:16:01.534848 #13379]  INFO -- : worker=1 ready
+```
diff --git a/doc/development/doc_styleguide.md b/doc/development/doc_styleguide.md
index 8292b393757..f5d97179f8a 100644
--- a/doc/development/doc_styleguide.md
+++ b/doc/development/doc_styleguide.md
@@ -103,14 +103,14 @@ Inside the document:
 
 - Every piece of documentation that comes with a new feature should declare the
   GitLab version that feature got introduced. Right below the heading add a
-  note: `_**Note:** This feature was introduced in GitLab 8.3_`
+  note: `>**Note:** This feature was introduced in GitLab 8.3`
 - If possible every feature should have a link to the MR that introduced it.
   The above note would be then transformed to:
-  `_**Note:** This feature was [introduced][ce-1242] in GitLab 8.3_`, where
+  `>**Note:** This feature was [introduced][ce-1242] in GitLab 8.3`, where
   the [link identifier](#links) is named after the repository (CE) and the MR
   number
 - If the feature is only in GitLab EE, don't forget to mention it, like:
-  `_**Note:** This feature was introduced in GitLab EE 8.3_`. Otherwise, leave
+  `>**Note:** This feature was introduced in GitLab EE 8.3`. Otherwise, leave
   this mention out
 
 ## References
@@ -141,6 +141,48 @@ Inside the document:
 
 [ruby-dl]: https://www.ruby-lang.org/en/downloads/ "Ruby download website"
 
+## Changing document location
+
+Changing a document's location is not to be taken lightly. Remember that the
+documentation is available to all installations under `help/` and not only to
+GitLab.com or http://docs.gitlab.com. Make sure this is discussed with the
+Documentation team beforehand.
+
+If you indeed need to change a document's location, do NOT remove the old
+document, but rather put a text in it that points to the new location, like:
+
+```
+This document was moved to [path/to/new_doc.md](path/to/new_doc.md).
+```
+
+where `path/to/new_doc.md` is the relative path to the root directory `doc/`.
+
+---
+
+For example, if you were to move `doc/workflow/lfs/lfs_administration.md` to
+`doc/administration/lfs.md`, then the steps would be:
+
+1. Copy `doc/workflow/lfs/lfs_administration.md` to `doc/administration/lfs.md`
+1. Replace the contents of `doc/workflow/lfs/lfs_administration.md` with:
+
+    ```
+    This document was moved to [administration/lfs.md](../../administration/lfs.md).
+    ```
+
+1. Find and replace any occurrences of the old location with the new one.
+   A quick way to find them is to use `grep`:
+
+    ```
+    grep -nR "lfs_administration.md" doc/
+    ```
+
+    The above command will search in the `doc/` directory for
+    `lfs_administration.md` recursively and will print the file and the line
+    where this file is mentioned. Note that we used just the filename
+    (`lfs_administration.md`) and not the whole the relative path
+    (`workflow/lfs/lfs_administration.md`).
+
+
 ## API
 
 Here is a list of must-have items. Use them in the exact order that appears
@@ -222,8 +264,8 @@ curl --data "name=foo" -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" "https://gitlab.
 
 #### Post data using JSON content
 
-_**Note:** In this example we create a new group. Watch carefully the single
-and double quotes._
+> **Note:** In this example we create a new group. Watch carefully the single
+and double quotes.
 
 ```bash
 curl -X POST -H "PRIVATE-TOKEN: 9koXpg98eAheJpvBs5tK" -H "Content-Type: application/json" --data '{"path": "my-group", "name": "My group"}' https://gitlab.example.com/api/v3/groups
diff --git a/doc/logs/logs.md b/doc/logs/logs.md
index f84060b8d07..a2eca62d691 100644
--- a/doc/logs/logs.md
+++ b/doc/logs/logs.md
@@ -1,92 +1 @@
-## Log system
-GitLab has an advanced log system where everything is logged so that you can analyze your instance using various system log files.
-In addition to system log files, GitLab Enterprise Edition comes with Audit Events. Find more about them [in Audit Events documentation](http://docs.gitlab.com/ee/administration/audit_events.html)
-
-System log files are typically plain text in a standard log file format. This guide talks about how to read and use these system log files.
-
-#### production.log
-This file lives in `/var/log/gitlab/gitlab-rails/production.log` for omnibus package or in `/home/git/gitlab/log/production.log` for installations from the source.
-
-This file contains information about all performed requests. You can see url and type of request, IP address and what exactly parts of code were involved to service this particular request. Also you can see all SQL request that have been performed and how much time it took.
-This task is more useful for GitLab contributors and developers. Use part of this log file when you are going to report bug.
-
-```
-Started GET "/gitlabhq/yaml_db/tree/master" for 168.111.56.1 at 2015-02-12 19:34:53 +0200
-Processing by Projects::TreeController#show as HTML
-  Parameters: {"project_id"=>"gitlabhq/yaml_db", "id"=>"master"}
-
-  ... [CUT OUT]
-
-  amespaces"."created_at" DESC, "namespaces"."id" DESC LIMIT 1  [["id", 26]]
-  CACHE (0.0ms)  SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members"."type" IN ('ProjectMember') AND "members"."source_id" = $1 AND "members"."source_type" = $2 AND "members"."user_id" = 1  ORDER BY "members"."created_at" DESC, "members"."id" DESC LIMIT 1  [["source_id", 18], ["source_type", "Project"]]
-  CACHE (0.0ms)  SELECT  "members".* FROM "members"  WHERE "members"."source_type" = 'Project' AND "members".
-   (1.4ms)  SELECT COUNT(*) FROM "merge_requests"  WHERE "merge_requests"."target_project_id" = $1 AND ("merge_requests"."state" IN ('opened','reopened'))  [["target_project_id", 18]]
-  Rendered layouts/nav/_project.html.haml (28.0ms)
-  Rendered layouts/_collapse_button.html.haml (0.2ms)
-  Rendered layouts/_flash.html.haml (0.1ms)
-  Rendered layouts/_page.html.haml (32.9ms)
-Completed 200 OK in 166ms (Views: 117.4ms | ActiveRecord: 27.2ms)
-```
-In this example we can see that server processed HTTP request with url `/gitlabhq/yaml_db/tree/master` from IP 168.111.56.1 at 2015-02-12 19:34:53 +0200. Also we can see that request was processed by Projects::TreeController.
-
-#### application.log
-This file lives in `/var/log/gitlab/gitlab-rails/application.log` for omnibus package or in `/home/git/gitlab/log/application.log` for installations from the source.
-
-This log file helps you discover events happening in your instance such as user creation, project removing and so on.
-
-```
-October 06, 2014 11:56: User "Administrator" (admin@example.com) was created
-October 06, 2014 11:56: Documentcloud created a new project "Documentcloud / Underscore"
-October 06, 2014 11:56: Gitlab Org created a new project "Gitlab Org / Gitlab Ce"
-October 07, 2014 11:25: User "Claudie Hodkiewicz" (nasir_stehr@olson.co.uk)  was removed
-October 07, 2014 11:25: Project "project133" was removed
-```
-#### githost.log
-This file lives in `/var/log/gitlab/gitlab-rails/githost.log` for omnibus package or in `/home/git/gitlab/log/githost.log` for installations from the source.
-
-The GitLab has to interact with git repositories but in some rare cases something can go wrong and in this case you will know what exactly happened. This log file contains all failed requests from GitLab to git repository. In majority of cases this file will be useful for developers only.
-```
-December 03, 2014 13:20 -> ERROR -> Command failed [1]: /usr/bin/git --git-dir=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq/.git --work-tree=/Users/vsizov/gitlab-development-kit/gitlab/tmp/tests/gitlab-satellites/group184/gitlabhq merge --no-ff -mMerge branch 'feature_conflict' into 'feature' source/feature_conflict
-
-error: failed to push some refs to '/Users/vsizov/gitlab-development-kit/repositories/gitlabhq/gitlab_git.git'
-```
-
-#### sidekiq.log
-This file lives in `/var/log/gitlab/gitlab-rails/sidekiq.log` for omnibus package or in `/home/git/gitlab/log/sidekiq.log` for installations from the source.
-
-GitLab uses background jobs for processing tasks which can take a long time. All information about processing these jobs are writing down to this file.
-```
-2014-06-10T07:55:20Z 2037 TID-tm504 ERROR: /opt/bitnami/apps/discourse/htdocs/vendor/bundle/ruby/1.9.1/gems/redis-3.0.7/lib/redis/client.rb:228:in `read'
-2014-06-10T18:18:26Z 14299 TID-55uqo INFO: Booting Sidekiq 3.0.0 with redis options {:url=>"redis://localhost:6379/0", :namespace=>"sidekiq"}
-```
-
-#### gitlab-shell.log
-This file lives in `/var/log/gitlab/gitlab-shell/gitlab-shell.log` for omnibus package or in `/home/git/gitlab-shell/gitlab-shell.log` for installations from the source.
-
-gitlab-shell is using by Gitlab for executing git commands and provide ssh access to git repositories.
-
-```
-I, [2015-02-13T06:17:00.671315 #9291]  INFO -- : Adding project root/example.git at </var/opt/gitlab/git-data/repositories/root/dcdcdcdcd.git>.
-I, [2015-02-13T06:17:00.679433 #9291]  INFO -- : Moving existing hooks directory and symlinking global hooks directory for /var/opt/gitlab/git-data/repositories/root/example.git.
-```
-
-#### unicorn_stderr.log
-This file lives in `/var/log/gitlab/unicorn/unicorn_stderr.log` for omnibus package or in `/home/git/gitlab/log/unicorn_stderr.log` for installations from the source.
-
-Unicorn is a high-performance forking Web server which is used for serving the GitLab application. You can look at this log if, for example, your application does not respond. This log contains all information about the state of unicorn processes at any given time.
-
-```
-I, [2015-02-13T06:14:46.680381 #9047]  INFO -- : Refreshing Gem list
-I, [2015-02-13T06:14:56.931002 #9047]  INFO -- : listening on addr=127.0.0.1:8080 fd=12
-I, [2015-02-13T06:14:56.931381 #9047]  INFO -- : listening on addr=/var/opt/gitlab/gitlab-rails/sockets/gitlab.socket fd=13
-I, [2015-02-13T06:14:56.936638 #9047]  INFO -- : master process ready
-I, [2015-02-13T06:14:56.946504 #9092]  INFO -- : worker=0 spawned pid=9092
-I, [2015-02-13T06:14:56.946943 #9092]  INFO -- : worker=0 ready
-I, [2015-02-13T06:14:56.947892 #9094]  INFO -- : worker=1 spawned pid=9094
-I, [2015-02-13T06:14:56.948181 #9094]  INFO -- : worker=1 ready
-W, [2015-02-13T07:16:01.312916 #9094]  WARN -- : #<Unicorn::HttpServer:0x0000000208f618>: worker (pid: 9094) exceeds memory limit (320626688 bytes > 247066940 bytes)
-W, [2015-02-13T07:16:01.313000 #9094]  WARN -- : Unicorn::WorkerKiller send SIGQUIT (pid: 9094) alive: 3621 sec (trial 1)
-I, [2015-02-13T07:16:01.530733 #9047]  INFO -- : reaped #<Process::Status: pid 9094 exit 0> worker=1
-I, [2015-02-13T07:16:01.534501 #13379]  INFO -- : worker=1 spawned pid=13379
-I, [2015-02-13T07:16:01.534848 #13379]  INFO -- : worker=1 ready
-```
+This document was moved to [administration/logs.md](../administration/logs.md).
diff --git a/lib/gitlab/database/migration_helpers.rb b/lib/gitlab/database/migration_helpers.rb
index 978c3f7896d..dd3ff0ab18b 100644
--- a/lib/gitlab/database/migration_helpers.rb
+++ b/lib/gitlab/database/migration_helpers.rb
@@ -31,8 +31,6 @@ module Gitlab
       # Any data inserted while running this method (or after it has finished
       # running) is _not_ updated automatically.
       #
-      # This method _only_ updates rows where the column's value is set to NULL.
-      #
       # table - The name of the table.
       # column - The name of the column to update.
       # value - The value for the column.
@@ -55,10 +53,10 @@ module Gitlab
           first['count'].
           to_i
 
-        # Update in batches of 5%
+        # Update in batches of 5% until we run out of any rows to update.
         batch_size = ((total / 100.0) * 5.0).ceil
 
-        while processed < total
+        loop do
           start_row = exec_query(%Q{
             SELECT id
             FROM #{quoted_table}
@@ -66,6 +64,9 @@ module Gitlab
             LIMIT 1 OFFSET #{processed}
           }).to_hash.first
 
+          # There are no more rows to process
+          break unless start_row
+
           stop_row = exec_query(%Q{
             SELECT id
             FROM #{quoted_table}
@@ -126,6 +127,8 @@ module Gitlab
         begin
           transaction do
             update_column_in_batches(table, column, default)
+
+            change_column_null(table, column, false) unless allow_null
           end
         # We want to rescue _all_ exceptions here, even those that don't inherit
         # from StandardError.
@@ -134,8 +137,6 @@ module Gitlab
 
           raise error
         end
-
-        change_column_null(table, column, false) unless allow_null
       end
     end
   end
diff --git a/scripts/prepare_build.sh b/scripts/prepare_build.sh
index d6fb1a34e8c..7e71a030901 100755
--- a/scripts/prepare_build.sh
+++ b/scripts/prepare_build.sh
@@ -16,10 +16,10 @@ retry() {
 }
 
 if [ -f /.dockerenv ] || [ -f ./dockerinit ]; then
-    mkdir -p vendor
+    mkdir -p vendor/apt
 
     # Install phantomjs package
-    pushd vendor
+    pushd vendor/apt
     if [ ! -e phantomjs_1.9.8-0jessie_amd64.deb ]; then
         wget -q https://gitlab.com/axil/phantomjs-debian/raw/master/phantomjs_1.9.8-0jessie_amd64.deb
     fi
diff --git a/spec/features/projects/commits/cherry_pick_spec.rb b/spec/features/projects/commits/cherry_pick_spec.rb
index 0559b02f321..f88c0616b52 100644
--- a/spec/features/projects/commits/cherry_pick_spec.rb
+++ b/spec/features/projects/commits/cherry_pick_spec.rb
@@ -16,6 +16,7 @@ describe 'Cherry-pick Commits' do
     it do
       visit namespace_project_commit_path(project.namespace, project, master_pickable_commit.id)
       find("a[href='#modal-cherry-pick-commit']").click
+      expect(page).not_to have_content('v1.0.0') # Only branches, not tags
       page.within('#modal-cherry-pick-commit') do
         uncheck 'create_merge_request'
         click_button 'Cherry-pick'
diff --git a/spec/lib/gitlab/database/migration_helpers_spec.rb b/spec/lib/gitlab/database/migration_helpers_spec.rb
index 83ddabe6b0b..1ec539066a7 100644
--- a/spec/lib/gitlab/database/migration_helpers_spec.rb
+++ b/spec/lib/gitlab/database/migration_helpers_spec.rb
@@ -120,6 +120,19 @@ describe Gitlab::Database::MigrationHelpers, lib: true do
           model.add_column_with_default(:projects, :foo, :integer, default: 10)
         end.to raise_error(RuntimeError)
       end
+
+      it 'removes the added column whenever changing a column NULL constraint fails' do
+        expect(model).to receive(:change_column_null).
+          with(:projects, :foo, false).
+          and_raise(RuntimeError)
+
+        expect(model).to receive(:remove_column).
+          with(:projects, :foo)
+
+        expect do
+          model.add_column_with_default(:projects, :foo, :integer, default: 10)
+        end.to raise_error(RuntimeError)
+      end
     end
 
     context 'inside a transaction' do
diff --git a/spec/models/notification_setting_spec.rb b/spec/models/notification_setting_spec.rb
index 295081e9da1..4e24e89b008 100644
--- a/spec/models/notification_setting_spec.rb
+++ b/spec/models/notification_setting_spec.rb
@@ -10,7 +10,6 @@ RSpec.describe NotificationSetting, type: :model do
     subject { NotificationSetting.new(source_id: 1, source_type: 'Project') }
 
     it { is_expected.to validate_presence_of(:user) }
-    it { is_expected.to validate_presence_of(:source) }
     it { is_expected.to validate_presence_of(:level) }
     it { is_expected.to validate_uniqueness_of(:user_id).scoped_to([:source_id, :source_type]).with_message(/already exists in source/) }
   end
diff --git a/spec/services/notification_service_spec.rb b/spec/services/notification_service_spec.rb
index cef5e0d8659..b99e02ba678 100644
--- a/spec/services/notification_service_spec.rb
+++ b/spec/services/notification_service_spec.rb
@@ -72,6 +72,7 @@ describe NotificationService, services: true do
           should_not_email(@u_disabled)
           should_not_email(@unsubscriber)
           should_not_email(@u_outsider_mentioned)
+          should_not_email(@u_lazy_participant)
         end
 
         it 'filters out "mentioned in" notes' do
@@ -80,6 +81,20 @@ describe NotificationService, services: true do
           expect(Notify).not_to receive(:note_issue_email)
           notification.new_note(mentioned_note)
         end
+
+        context 'participating' do
+          context 'by note' do
+            before do
+              ActionMailer::Base.deliveries.clear
+              note.author = @u_lazy_participant
+              note.save
+              notification.new_note(note)
+            end
+
+
+            it { should_not_email(@u_lazy_participant) }
+          end
+        end
       end
 
       describe 'new note on issue in project that belongs to a group' do
@@ -106,6 +121,7 @@ describe NotificationService, services: true do
           should_not_email(note.author)
           should_not_email(@u_participating)
           should_not_email(@u_disabled)
+          should_not_email(@u_lazy_participant)
         end
       end
     end
@@ -235,6 +251,7 @@ describe NotificationService, services: true do
           should_not_email(note.author)
           should_not_email(@u_participating)
           should_not_email(@u_disabled)
+          should_not_email(@u_lazy_participant)
         end
 
         it do
@@ -248,10 +265,11 @@ describe NotificationService, services: true do
           should_not_email(note.author)
           should_not_email(@u_participating)
           should_not_email(@u_disabled)
+          should_not_email(@u_lazy_participant)
         end
 
         it do
-          @u_committer.update_attributes(notification_level: :mention)
+          @u_committer = create_global_setting_for(@u_committer, :mention)
           notification.new_note(note)
           should_not_email(@u_committer)
         end
@@ -280,10 +298,11 @@ describe NotificationService, services: true do
         should_not_email(@u_mentioned)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
       end
 
       it do
-        issue.assignee.update_attributes(notification_level: :mention)
+        create_global_setting_for(issue.assignee, :mention)
         notification.new_issue(issue, @u_disabled)
 
         should_not_email(issue.assignee)
@@ -341,6 +360,7 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
       end
 
       it 'emails previous assignee even if he has the "on mention" notif level' do
@@ -356,6 +376,7 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
       end
 
       it 'emails new assignee even if he has the "on mention" notif level' do
@@ -371,6 +392,7 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
       end
 
       it 'emails new assignee' do
@@ -386,6 +408,7 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
       end
 
       it 'does not email new assignee if they are the current user' do
@@ -401,6 +424,35 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            issue.update_attribute(:assignee, @u_lazy_participant)
+            notification.reassigned_issue(issue, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: issue, project_id: issue.project_id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.reassigned_issue(issue, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            issue.author = @u_lazy_participant
+            notification.reassigned_issue(issue, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
 
@@ -479,6 +531,35 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            issue.update_attribute(:assignee, @u_lazy_participant)
+            notification.close_issue(issue, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: issue, project_id: issue.project_id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.close_issue(issue, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            issue.author = @u_lazy_participant
+            notification.close_issue(issue, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
 
@@ -495,6 +576,35 @@ describe NotificationService, services: true do
         should_email(@watcher_and_subscriber)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            issue.update_attribute(:assignee, @u_lazy_participant)
+            notification.reopen_issue(issue, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: issue, project_id: issue.project_id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.reopen_issue(issue, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            issue.author = @u_lazy_participant
+            notification.reopen_issue(issue, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
   end
@@ -520,6 +630,7 @@ describe NotificationService, services: true do
         should_email(@u_guest_watcher)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
       end
 
       it "emails subscribers of the merge request's labels" do
@@ -530,6 +641,36 @@ describe NotificationService, services: true do
 
         should_email(subscriber)
       end
+
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            merge_request.update_attribute(:assignee, @u_lazy_participant)
+            notification.new_merge_request(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: merge_request, project_id: project.id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.new_merge_request(merge_request, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            merge_request.author = @u_lazy_participant
+            merge_request.save
+            notification.new_merge_request(merge_request, @u_disabled)
+          end
+
+          it { should_not_email(@u_lazy_participant) }
+        end
+      end
     end
 
     describe '#reassigned_merge_request' do
@@ -545,6 +686,36 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            merge_request.update_attribute(:assignee, @u_lazy_participant)
+            notification.reassigned_merge_request(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: merge_request, project_id: project.id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.reassigned_merge_request(merge_request, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            merge_request.author = @u_lazy_participant
+            merge_request.save
+            notification.reassigned_merge_request(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
 
@@ -572,6 +743,7 @@ describe NotificationService, services: true do
         should_not_email(@watcher_and_subscriber)
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
+        should_not_email(@u_lazy_participant)
         should_not_email(subscriber_to_label)
         should_email(subscriber_to_label2)
       end
@@ -590,6 +762,36 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            merge_request.update_attribute(:assignee, @u_lazy_participant)
+            notification.close_mr(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: merge_request, project_id: project.id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.close_mr(merge_request, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            merge_request.author = @u_lazy_participant
+            merge_request.save
+            notification.close_mr(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
 
@@ -606,6 +808,36 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            merge_request.update_attribute(:assignee, @u_lazy_participant)
+            notification.merge_mr(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: merge_request, project_id: project.id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.merge_mr(merge_request, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            merge_request.author = @u_lazy_participant
+            merge_request.save
+            notification.merge_mr(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
 
@@ -622,6 +854,36 @@ describe NotificationService, services: true do
         should_not_email(@unsubscriber)
         should_not_email(@u_participating)
         should_not_email(@u_disabled)
+        should_not_email(@u_lazy_participant)
+      end
+
+      context 'participating' do
+        context 'by assignee' do
+          before do
+            merge_request.update_attribute(:assignee, @u_lazy_participant)
+            notification.reopen_mr(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by note' do
+          let!(:note) { create(:note_on_issue, noteable: merge_request, project_id: project.id, note: 'anything', author: @u_lazy_participant) }
+
+          before { notification.reopen_mr(merge_request, @u_disabled) }
+
+          it { should_email(@u_lazy_participant) }
+        end
+
+        context 'by author' do
+          before do
+            merge_request.author = @u_lazy_participant
+            merge_request.save
+            notification.reopen_mr(merge_request, @u_disabled)
+          end
+
+          it { should_email(@u_lazy_participant) }
+        end
       end
     end
   end
@@ -640,6 +902,7 @@ describe NotificationService, services: true do
 
         should_email(@u_watcher)
         should_email(@u_participating)
+        should_email(@u_lazy_participant)
         should_not_email(@u_guest_watcher)
         should_not_email(@u_disabled)
       end
@@ -647,14 +910,19 @@ describe NotificationService, services: true do
   end
 
   def build_team(project)
-    @u_watcher = create(:user, notification_level: :watch)
-    @u_participating = create(:user, notification_level: :participating)
-    @u_participant_mentioned = create(:user, username: 'participant', notification_level: :participating)
-    @u_disabled = create(:user, notification_level: :disabled)
-    @u_mentioned = create(:user, username: 'mention', notification_level: :mention)
-    @u_committer = create(:user, username: 'committer')
-    @u_not_mentioned = create(:user, username: 'regular', notification_level: :participating)
-    @u_outsider_mentioned = create(:user, username: 'outsider')
+    @u_watcher               = create_global_setting_for(create(:user), :watch)
+    @u_participating         = create_global_setting_for(create(:user), :participating)
+    @u_participant_mentioned = create_global_setting_for(create(:user, username: 'participant'), :participating)
+    @u_disabled              = create_global_setting_for(create(:user), :disabled)
+    @u_mentioned             = create_global_setting_for(create(:user, username: 'mention'), :mention)
+    @u_committer             = create(:user, username: 'committer')
+    @u_not_mentioned         = create_global_setting_for(create(:user, username: 'regular'), :participating)
+    @u_outsider_mentioned    = create(:user, username: 'outsider')
+
+    # User to be participant by default
+    # This user does not contain any record in notification settings table
+    # It should be treated with a :participating notification_level
+    @u_lazy_participant      = create(:user, username: 'lazy-participant')
 
     create_guest_watcher
 
@@ -665,6 +933,15 @@ describe NotificationService, services: true do
     project.team << [@u_mentioned, :master]
     project.team << [@u_committer, :master]
     project.team << [@u_not_mentioned, :master]
+    project.team << [@u_lazy_participant, :master]
+  end
+
+  def create_global_setting_for(user, level)
+    setting = user.global_notification_setting
+    setting.level = level
+    setting.save
+
+    user
   end
 
   def create_guest_watcher
@@ -677,8 +954,8 @@ describe NotificationService, services: true do
   def add_users_with_subscription(project, issuable)
     @subscriber = create :user
     @unsubscriber = create :user
-    @subscribed_participant = create(:user, username: 'subscribed_participant', notification_level: :participating)
-    @watcher_and_subscriber = create(:user, notification_level: :watch)
+    @subscribed_participant = create_global_setting_for(create(:user, username: 'subscribed_participant'), :participating)
+    @watcher_and_subscriber = create_global_setting_for(create(:user), :watch)
 
     project.team << [@subscribed_participant, :master]
     project.team << [@subscriber, :master]