Merge branch 'master' of gitlab.com:gitlab-org/gitlab-ce into fix/project-import_url

# Conflicts:
#	db/schema.rb

CHANGELOG

 Please view this file on the master branch, on stable branches it's out of date.
 
 v 8.6.0 (unreleased)
+  - Add ability to move issue to another project
   - Fix bug where wrong commit ID was being used in a merge request diff to show old image (Stan Hu)
   - Make HTTP(s) label consistent on clone bar (Stan Hu)
   - Add confidential issues
   - Bump gitlab_git to 9.0.3 (Stan Hu)
+  - Fix diff image view modes (2-up, swipe, onion skin) not working (Stan Hu)
   - Support Golang subpackage fetching (Stan Hu)
   - Bump Capybara gem to 2.6.2 (Stan Hu)
   - New branch button appears on issues where applicable

GITLAB_WORKHORSE_VERSION

-0.6.5
+0.7.1

Gemfile

@@ -222,6 +222,8 @@ gem 'net-ssh',            '~> 3.0.1'
 # Sentry integration
 gem 'sentry-raven', '~> 0.15'
 
+gem 'premailer-rails', '~> 1.9.0'
+
 # Metrics
 group :metrics do
   gem 'allocations', '~> 1.0', require: false, platform: :mri

Gemfile.lock

@@ -148,6 +148,8 @@ GEM
     crack (0.4.3)
       safe_yaml (~> 1.0.0)
     creole (0.5.0)
+    css_parser (1.3.7)
+      addressable
     d3_rails (3.5.11)
       railties (>= 3.1.0)
     daemons (1.2.3)
@@ -421,6 +423,7 @@ GEM
       haml (~> 4.0.0)
       nokogiri (~> 1.6.0)
       ruby_parser (~> 3.5)
+    htmlentities (4.3.4)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
     http_parser.rb (0.5.3)
@@ -562,6 +565,12 @@ GEM
       websocket-driver (>= 0.2.0)
     posix-spawn (0.3.11)
     powerpack (0.1.1)
+    premailer (1.8.6)
+      css_parser (>= 1.3.6)
+      htmlentities (>= 4.0.0)
+    premailer-rails (1.9.0)
+      actionmailer (>= 3, < 5)
+      premailer (~> 1.7, >= 1.7.9)
     pry (0.10.3)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -990,6 +999,7 @@ DEPENDENCIES
   paranoia (~> 2.0)
   pg (~> 0.18.2)
   poltergeist (~> 1.9.0)
+  premailer-rails (~> 1.9.0)
   pry-rails
   quiet_assets (~> 1.0.2)
   rack-attack (~> 4.3.1)

app/assets/javascripts/application.js.coffee

@@ -7,6 +7,7 @@
 #= require jquery
 #= require jquery-ui/autocomplete
 #= require jquery-ui/datepicker
+#= require jquery-ui/draggable
 #= require jquery-ui/effect-highlight
 #= require jquery-ui/sortable
 #= require jquery_ujs

app/assets/javascripts/aside.js.coffee

@@ -5,7 +5,6 @@ class @Aside
       e.preventDefault()
       btn = $(e.currentTarget)
       icon = btn.find('i')
-      console.log('1')
 
       if icon.hasClass('fa-angle-left')
         btn.parent().find('section').hide()

app/assets/javascripts/issuable_form.js.coffee

 class @IssuableForm
+  issueMoveConfirmMsg: 'Are you sure you want to move this issue to another project?'
   wipRegex: /^\s*(\[WIP\]\s*|WIP:\s*|WIP\s+)+\s*/i
+
   constructor: (@form) ->
     GitLab.GfmAutoComplete.setup()
     new UsersSelect()
@@ -7,12 +9,13 @@ class @IssuableForm
 
     @titleField       = @form.find("input[name*='[title]']")
     @descriptionField = @form.find("textarea[name*='[description]']")
+    @issueMoveField   = @form.find("#move_to_project_id")
 
     return unless @titleField.length && @descriptionField.length
 
     @initAutosave()
 
-    @form.on "submit", @resetAutosave
+    @form.on "submit", @handleSubmit
     @form.on "click", ".btn-cancel", @resetAutosave
 
     @initWip()
@@ -30,6 +33,12 @@ class @IssuableForm
       "description"
     ]
 
+  handleSubmit: =>
+    if (parseInt(@issueMoveField?.val()) ? 0) > 0
+      return false unless confirm(@issueMoveConfirmMsg)
+
+    @resetAutosave()
+
   resetAutosave: =>
     @titleField.data("autosave").reset()
     @descriptionField.data("autosave").reset()

app/assets/stylesheets/notify.scss

+img {
+  max-width: 100%;
+  height: auto;
+}
+p.details {
+  font-style:italic;
+  color:#777
+}
+.footer p {
+  font-size:small;
+  color:#777
+}
+pre.commit-message {
+  white-space: pre-wrap;
+}
+.file-stats a {
+  text-decoration: none;
+}
+.file-stats .new-file {
+  color: #090;
+}
+.file-stats .deleted-file {
+  color: #B00;
+}

app/controllers/admin/groups_controller.rb

@@ -5,12 +5,12 @@ class Admin::GroupsController < Admin::ApplicationController
     @groups = Group.all
     @groups = @groups.sort(@sort = params[:sort])
     @groups = @groups.search(params[:name]) if params[:name].present?
-    @groups = @groups.page(params[:page]).per(PER_PAGE)
+    @groups = @groups.page(params[:page])
   end
 
   def show
-    @members = @group.members.order("access_level DESC").page(params[:members_page]).per(PER_PAGE)
-    @projects = @group.projects.page(params[:projects_page]).per(PER_PAGE)
+    @members = @group.members.order("access_level DESC").page(params[:members_page])
+    @projects = @group.projects.page(params[:projects_page])
   end
 
   def new

app/controllers/admin/labels_controller.rb

@@ -2,7 +2,7 @@ class Admin::LabelsController < Admin::ApplicationController
   before_action :set_label, only: [:show, :edit, :update, :destroy]
 
   def index
-    @labels = Label.templates.page(params[:page]).per(PER_PAGE)
+    @labels = Label.templates.page(params[:page])
   end
 
   def show

app/controllers/admin/projects_controller.rb

@@ -12,15 +12,15 @@ class Admin::ProjectsController < Admin::ApplicationController
     @projects = @projects.non_archived unless params[:with_archived].present?
     @projects = @projects.search(params[:name]) if params[:name].present?
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page]).per(PER_PAGE)
+    @projects = @projects.includes(:namespace).order("namespaces.path, projects.name ASC").page(params[:page])
   end
 
   def show
     if @group
-      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page]).per(PER_PAGE)
+      @group_members = @group.members.order("access_level DESC").page(params[:group_members_page])
     end
 
-    @project_members = @project.project_members.page(params[:project_members_page]).per(PER_PAGE)
+    @project_members = @project.project_members.page(params[:project_members_page])
   end
 
   def transfer

app/controllers/application_controller.rb

@@ -6,8 +6,6 @@ class ApplicationController < ActionController::Base
   include GitlabRoutingHelper
   include PageLayoutHelper
 
-  PER_PAGE = 20
-
   before_action :authenticate_user_from_token!
   before_action :authenticate_user!
   before_action :validate_user_service_ticket!

app/controllers/autocomplete_controller.rb

@@ -7,7 +7,7 @@ class AutocompleteController < ApplicationController
     @users = @users.search(params[:search]) if params[:search].present?
     @users = @users.active
     @users = @users.reorder(:name)
-    @users = @users.page(params[:page]).per(PER_PAGE)
+    @users = @users.page(params[:page])
 
     if params[:search].blank?
       # Include current user if available to filter by "Me"

app/controllers/concerns/global_milestones.rb

@@ -6,7 +6,7 @@ module GlobalMilestones
     @milestones = MilestonesFinder.new.execute(@projects, params)
     @milestones = GlobalMilestone.build_collection(@milestones)
     @milestones = @milestones.sort_by { |x| x.due_date.nil? ? epoch : x.due_date }
-    @milestones = Kaminari.paginate_array(@milestones).page(params[:page]).per(ApplicationController::PER_PAGE)
+    @milestones = Kaminari.paginate_array(@milestones).page(params[:page])
   end
 
   def milestone

app/controllers/concerns/issues_action.rb

@@ -3,7 +3,7 @@ module IssuesAction
 
   def issues
     @issues = get_issues_collection.non_archived
-    @issues = @issues.page(params[:page]).per(ApplicationController::PER_PAGE)
+    @issues = @issues.page(params[:page])
     @issues = @issues.preload(:author, :project)
 
     @label = @issuable_finder.labels.first

app/controllers/concerns/merge_requests_action.rb

@@ -3,7 +3,7 @@ module MergeRequestsAction
 
   def merge_requests
     @merge_requests = get_merge_requests_collection.non_archived
-    @merge_requests = @merge_requests.page(params[:page]).per(ApplicationController::PER_PAGE)
+    @merge_requests = @merge_requests.page(params[:page])
     @merge_requests = @merge_requests.preload(:author, :target_project)
 
     @label = @issuable_finder.labels.first

app/controllers/dashboard/groups_controller.rb

 class Dashboard::GroupsController < Dashboard::ApplicationController
   def index
-    @group_members = current_user.group_members.page(params[:page]).per(PER_PAGE)
+    @group_members = current_user.group_members.page(params[:page])
   end
 end

app/controllers/dashboard/projects_controller.rb

@@ -8,7 +8,7 @@ class Dashboard::ProjectsController < Dashboard::ApplicationController
     @projects = filter_projects(@projects)
     @projects = @projects.includes(:namespace)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     @last_push = current_user.recent_push
 
@@ -32,7 +32,7 @@ class Dashboard::ProjectsController < Dashboard::ApplicationController
     @projects = filter_projects(@projects)
     @projects = @projects.includes(:namespace, :forked_from_project, :tags)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     @last_push = current_user.recent_push
     @groups = []

app/controllers/dashboard/snippets_controller.rb

@@ -6,6 +6,6 @@ class Dashboard::SnippetsController < Dashboard::ApplicationController
       user: current_user,
       scope: params[:scope]
     )
-    @snippets = @snippets.page(params[:page]).per(PER_PAGE)
+    @snippets = @snippets.page(params[:page])
   end
 end

app/controllers/dashboard/todos_controller.rb

@@ -2,7 +2,7 @@ class Dashboard::TodosController < Dashboard::ApplicationController
   before_action :find_todos, only: [:index, :destroy, :destroy_all]
 
   def index
-    @todos = @todos.page(params[:page]).per(PER_PAGE)
+    @todos = @todos.page(params[:page])
   end
 
   def destroy

app/controllers/explore/groups_controller.rb

@@ -3,6 +3,6 @@ class Explore::GroupsController < Explore::ApplicationController
     @groups = Group.order_id_desc
     @groups = @groups.search(params[:search]) if params[:search].present?
     @groups = @groups.sort(@sort = params[:sort])
-    @groups = @groups.page(params[:page]).per(PER_PAGE)
+    @groups = @groups.page(params[:page])
   end
 end

app/controllers/explore/projects_controller.rb

@@ -8,7 +8,7 @@ class Explore::ProjectsController < Explore::ApplicationController
     @projects = @projects.where(visibility_level: params[:visibility_level]) if params[:visibility_level].present?
     @projects = filter_projects(@projects)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.includes(:namespace).page(params[:page]).per(PER_PAGE)
+    @projects = @projects.includes(:namespace).page(params[:page])
 
     respond_to do |format|
       format.html
@@ -23,7 +23,7 @@ class Explore::ProjectsController < Explore::ApplicationController
   def trending
     @projects = TrendingProjectsFinder.new.execute(current_user)
     @projects = filter_projects(@projects)
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     respond_to do |format|
       format.html
@@ -39,7 +39,7 @@ class Explore::ProjectsController < Explore::ApplicationController
     @projects = ProjectsFinder.new.execute(current_user)
     @projects = filter_projects(@projects)
     @projects = @projects.reorder('star_count DESC')
-    @projects = @projects.page(params[:page]).per(PER_PAGE)
+    @projects = @projects.page(params[:page])
 
     respond_to do |format|
       format.html

app/controllers/explore/snippets_controller.rb

 class Explore::SnippetsController < Explore::ApplicationController
   def index
     @snippets = SnippetsFinder.new.execute(current_user, filter: :all)
-    @snippets = @snippets.page(params[:page]).per(PER_PAGE)
+    @snippets = @snippets.page(params[:page])
   end
 end

app/controllers/groups_controller.rb

@@ -44,7 +44,7 @@ class GroupsController < Groups::ApplicationController
     @projects = @projects.includes(:namespace)
     @projects = filter_projects(@projects)
     @projects = @projects.sort(@sort = params[:sort])
-    @projects = @projects.page(params[:page]).per(PER_PAGE) if params[:filter_projects].blank?
+    @projects = @projects.page(params[:page]) if params[:filter_projects].blank?
 
     @shared_projects = @group.shared_projects
 

app/controllers/profiles_controller.rb

@@ -34,8 +34,7 @@ class ProfilesController < Profiles::ApplicationController
   def audit_log
     @events = AuditEvent.where(entity_type: "User", entity_id: current_user.id).
       order("created_at DESC").
-      page(params[:page]).
-      per(PER_PAGE)
+      page(params[:page])
   end
 
   def update_username

app/controllers/projects/branches_controller.rb

@@ -8,7 +8,7 @@ class Projects::BranchesController < Projects::ApplicationController
   def index
     @sort = params[:sort] || 'name'
     @branches = @repository.branches_sorted_by(@sort)
-    @branches = Kaminari.paginate_array(@branches).page(params[:page]).per(PER_PAGE)
+    @branches = Kaminari.paginate_array(@branches).page(params[:page])
 
     @max_commits = @branches.reduce(0) do |memo, branch|
       diverging_commit_counts = repository.diverging_commit_counts(branch)

app/controllers/projects/forks_controller.rb

@@ -15,7 +15,7 @@ class Projects::ForksController < Projects::ApplicationController
 
     @sort  = params[:sort] || 'id_desc'
     @forks = @forks.search(params[:filter_projects]) if params[:filter_projects].present?
-    @forks = @forks.order_by(@sort).page(params[:page]).per(PER_PAGE)
+    @forks = @forks.order_by(@sort).page(params[:page])
 
     respond_to do |format|
       format.html

app/controllers/projects/issues_controller.rb

@@ -33,7 +33,7 @@ class Projects::IssuesController < Projects::ApplicationController
       end
     end
 
-    @issues = @issues.page(params[:page]).per(PER_PAGE)
+    @issues = @issues.page(params[:page])
     @label = @project.labels.find_by(title: params[:label_name])
 
     respond_to do |format|
@@ -90,6 +90,12 @@ class Projects::IssuesController < Projects::ApplicationController
   def update
     @issue = Issues::UpdateService.new(project, current_user, issue_params).execute(issue)
 
+    if params[:move_to_project_id].to_i > 0
+      new_project = Project.find(params[:move_to_project_id])
+      move_service = Issues::MoveService.new(project, current_user)
+      @issue = move_service.execute(@issue, new_project)
+    end
+
     respond_to do |format|
       format.js
       format.html do

app/controllers/projects/labels_controller.rb

@@ -11,7 +11,7 @@ class Projects::LabelsController < Projects::ApplicationController
   respond_to :js, :html
 
   def index
-    @labels = @project.labels.page(params[:page]).per(PER_PAGE)
+    @labels = @project.labels.page(params[:page])
 
     respond_to do |format|
       format.html

app/controllers/projects/merge_requests_controller.rb

@@ -34,7 +34,7 @@ class Projects::MergeRequestsController < Projects::ApplicationController
       end
     end
 
-    @merge_requests = @merge_requests.page(params[:page]).per(PER_PAGE)
+    @merge_requests = @merge_requests.page(params[:page])
     @merge_requests = @merge_requests.preload(:target_project)
 
     @label = @project.labels.find_by(title: params[:label_name])

app/controllers/projects/milestones_controller.rb

@@ -22,7 +22,7 @@ class Projects::MilestonesController < Projects::ApplicationController
 
     respond_to do |format|
       format.html do
-        @milestones = @milestones.page(params[:page]).per(PER_PAGE)
+        @milestones = @milestones.page(params[:page])
       end
       format.json do
         render json: @milestones

app/controllers/projects/snippets_controller.rb

@@ -21,7 +21,7 @@ class Projects::SnippetsController < Projects::ApplicationController
       filter: :by_project,
       project: @project
     })
-    @snippets = @snippets.page(params[:page]).per(PER_PAGE)
+    @snippets = @snippets.page(params[:page])
   end
 
   def new

app/controllers/projects/tags_controller.rb

@@ -7,7 +7,7 @@ class Projects::TagsController < Projects::ApplicationController
 
   def index
     sorted = VersionSorter.rsort(@repository.tag_names)
-    @tags = Kaminari.paginate_array(sorted).page(params[:page]).per(PER_PAGE)
+    @tags = Kaminari.paginate_array(sorted).page(params[:page])
     @releases = project.releases.where(tag: @tags)
   end
 

app/controllers/projects/wikis_controller.rb

@@ -7,7 +7,7 @@ class Projects::WikisController < Projects::ApplicationController
   before_action :load_project_wiki
 
   def pages
-    @wiki_pages = Kaminari.paginate_array(@project_wiki.pages).page(params[:page]).per(PER_PAGE)
+    @wiki_pages = Kaminari.paginate_array(@project_wiki.pages).page(params[:page])
   end
 
   def show

app/controllers/snippets_controller.rb

@@ -25,7 +25,7 @@ class SnippetsController < ApplicationController
         filter: :by_user,
         user: @user,
         scope: params[:scope] }).
-      page(params[:page]).per(PER_PAGE)
+      page(params[:page])
 
       render 'index'
     else

app/controllers/users_controller.rb

@@ -100,7 +100,7 @@ class UsersController < ApplicationController
   def load_projects
     @projects =
       PersonalProjectsFinder.new(@user).execute(current_user)
-      .page(params[:page]).per(PER_PAGE)
+      .page(params[:page])
   end
 
   def load_contributed_projects

app/helpers/issues_helper.rb

@@ -57,6 +57,19 @@ module IssuesHelper
     options_from_collection_for_select(milestones, 'id', 'title', object.milestone_id)
   end
 
+  def project_options(issuable, current_user, ability: :read_project)
+    projects = current_user.authorized_projects
+    projects = projects.select do |project|
+      current_user.can?(ability, project)
+    end
+
+    no_project = OpenStruct.new(id: 0, name_with_namespace: 'No project')
+    projects.unshift(no_project)
+    projects.delete(issuable.project)
+
+    options_from_collection_for_select(projects, :id, :name_with_namespace)
+  end
+
   def status_box_class(item)
     if item.respond_to?(:expired?) && item.expired?
       'status-box-expired'

app/mailers/emails/issues.rb

@@ -36,6 +36,14 @@ module Emails
       mail_answer_thread(@issue, issue_thread_options(updated_by_user_id, recipient_id))
     end
 
+    def issue_moved_email(recipient, issue, new_issue, updated_by_user)
+      setup_issue_mail(issue.id, recipient.id)
+
+      @new_issue = new_issue
+      @new_project = new_issue.project
+      mail_answer_thread(issue, issue_thread_options(updated_by_user.id, recipient.id))
+    end
+
     private
 
     def setup_issue_mail(issue_id, recipient_id)

app/models/concerns/issuable.rb

@@ -209,4 +209,13 @@ module Issuable
     Taskable.get_updated_tasks(old_content: previous_changes['description'].first,
                                new_content: description)
   end
+
+  ##
+  # Method that checks if issuable can be moved to another project.
+  #
+  # Should be overridden if issuable can be moved.
+  #
+  def can_move?(*)
+    false
+  end
 end

app/models/issue.rb

@@ -16,6 +16,7 @@
 #  state         :string(255)
 #  iid           :integer
 #  updated_by_id :integer
+#  moved_to_id   :integer
 #
 
 require 'carrierwave/orm/activerecord'
@@ -31,6 +32,8 @@ class Issue < ActiveRecord::Base
   ActsAsTaggableOn.strict_case_match = true
 
   belongs_to :project
+  belongs_to :moved_to, class_name: 'Issue'
+
   validates :project, presence: true
 
   scope :of_group,
@@ -105,9 +108,9 @@ class Issue < ActiveRecord::Base
   end
 
   def related_branches
-    return [] if self.project.empty_repo?
-    
-    self.project.repository.branch_names.select { |branch| branch.end_with?("-#{iid}") }
+    project.repository.branch_names.select do |branch|
+      branch.end_with?("-#{iid}")
+    end
   end
 
   # Reset issue events cache
@@ -137,6 +140,18 @@ class Issue < ActiveRecord::Base
     end.uniq.select { |mr| mr.open? && mr.closes_issue?(self) }
   end
 
+  def moved?
+    !moved_to.nil?
+  end
+
+  def can_move?(user, to_project = nil)
+    if to_project
+      return false unless user.can?(:admin_issue, to_project)
+    end
+
+    !moved? && user.can?(:admin_issue, self.project)
+  end
+
   def to_branch_name
     "#{title.parameterize}-#{iid}"
   end

app/models/project.rb

@@ -898,6 +898,7 @@ class Project < ActiveRecord::Base
     # Forked import is handled asynchronously
     unless forked?
       if gitlab_shell.add_repository(path_with_namespace)
+        repository.after_create
         true
       else
         errors.add(:base, 'Failed to create repository via gitlab-shell')

app/models/project_wiki.rb

@@ -123,23 +123,27 @@ class ProjectWiki
   end
 
   def repository
-    Repository.new(path_with_namespace, @project)
+    @repository ||= Repository.new(path_with_namespace, @project)
   end
 
   def default_branch
     wiki.class.default_ref
   end
 
-  private
-
   def create_repo!
     if init_repo(path_with_namespace)
-      Gollum::Wiki.new(path_to_repo)
+      wiki = Gollum::Wiki.new(path_to_repo)
     else
       raise CouldNotCreateWikiError
     end
+
+    repository.after_create
+
+    wiki
   end
 
+  private
+
   def init_repo(path_with_namespace)
     gitlab_shell.add_repository(path_with_namespace)
   end

app/models/repository.rb

@@ -42,12 +42,15 @@ class Repository
   end
 
   def exists?
-    return false unless raw_repository
+    return @exists unless @exists.nil?
 
-    raw_repository.rugged
-    true
-  rescue Gitlab::Git::Repository::NoRepository
-    false
+    @exists = cache.fetch(:exists?) do
+      begin
+        raw_repository && raw_repository.rugged ? true : false
+      rescue Gitlab::Git::Repository::NoRepository
+        false
+      end
+    end
   end
 
   def empty?
@@ -320,12 +323,23 @@ class Repository
     @avatar = nil
   end
 
+  def expire_exists_cache
+    cache.expire(:exists?)
+    @exists = nil
+  end
+
+  # Runs code after a repository has been created.
+  def after_create
+    expire_exists_cache
+  end
+
   # Runs code just before a repository is deleted.
   def before_delete
     expire_cache if exists?
 
     expire_root_ref_cache
     expire_emptiness_caches
+    expire_exists_cache
   end
 
   # Runs code just before the HEAD of a repository is changed.
@@ -351,6 +365,7 @@ class Repository
   # Runs code after a repository has been forked/imported.
   def after_import
     expire_emptiness_caches
+    expire_exists_cache
   end
 
   # Runs code after a new commit has been pushed.

app/models/user.rb

@@ -435,7 +435,7 @@ class User < ActiveRecord::Base
     Group.where("namespaces.id IN (#{union.to_sql})")
   end
 
-  # Returns the groups a user is authorized to access.
+  # Returns projects user is authorized to access.
   def authorized_projects
     Project.where("projects.id IN (#{projects_union.to_sql})")
   end

app/services/git_push_service.rb

@@ -120,7 +120,7 @@ class GitPushService < BaseService
         closed_issues = commit.closes_issues(current_user)
         closed_issues.each do |issue|
           if can?(current_user, :update_issue, issue)
-            Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit)
+            Issues::CloseService.new(project, authors[commit], {}).execute(issue, commit: commit)
           end
         end
       end

app/services/issues/close_service.rb

 module Issues
   class CloseService < Issues::BaseService
-    def execute(issue, commit = nil)
+    def execute(issue, commit: nil, notifications: true, system_note: true)
       if project.jira_tracker? && project.jira_service.active
         project.jira_service.execute(commit, issue)
         todo_service.close_issue(issue, current_user)
@@ -9,8 +9,8 @@ module Issues
 
       if project.default_issues_tracker? && issue.close
         event_service.close_issue(issue, current_user)
-        create_note(issue, commit)
-        notification_service.close_issue(issue, current_user)
+        create_note(issue, commit) if system_note
+        notification_service.close_issue(issue, current_user) if notifications
         todo_service.close_issue(issue, current_user)
         execute_hooks(issue, 'close')
       end

app/services/issues/create_service.rb

@@ -4,7 +4,7 @@ module Issues
       filter_params
       label_params = params[:label_ids]
       issue = project.issues.new(params.except(:label_ids))
-      issue.author = current_user
+      issue.author = params[:author] || current_user
 
       if issue.save
         issue.update_attributes(label_ids: label_params)

app/services/issues/move_service.rb

+module Issues
+  class MoveService < Issues::BaseService
+    class MoveError < StandardError; end
+
+    def execute(issue, new_project)
+      @old_issue = issue
+      @old_project = @project
+      @new_project = new_project
+
+      unless issue.can_move?(current_user, new_project)
+        raise MoveError, 'Cannot move issue due to insufficient permissions!'
+      end
+
+      if @project == new_project
+        raise MoveError, 'Cannot move issue to project it originates from!'
+      end
+
+      # Using transaction because of a high resources footprint
+      # on rewriting notes (unfolding references)
+      #
+      ActiveRecord::Base.transaction do
+        # New issue tasks
+        #
+        @new_issue = create_new_issue
+
+        rewrite_notes
+        add_note_moved_from
+
+        # Old issue tasks
+        #
+        add_note_moved_to
+        close_issue
+        mark_as_moved
+      end
+
+      notify_participants
+
+      @new_issue
+    end
+
+    private
+
+    def create_new_issue
+      new_params = { id: nil, iid: nil, label_ids: [], milestone: nil,
+                     project: @new_project, author: @old_issue.author,
+                     description: unfold_references(@old_issue.description) }
+
+      new_params = @old_issue.serializable_hash.merge(new_params)
+      CreateService.new(@new_project, @current_user, new_params).execute
+    end
+
+    def rewrite_notes
+      @old_issue.notes.find_each do |note|
+        new_note = note.dup
+        new_params = { project: @new_project, noteable: @new_issue,
+                       note: unfold_references(new_note.note),
+                       created_at: note.created_at }
+
+        new_note.update(new_params)
+      end
+    end
+
+    def close_issue
+      close_service = CloseService.new(@old_project, @current_user)
+      close_service.execute(@old_issue, notifications: false, system_note: false)
+    end
+
+    def add_note_moved_from
+      SystemNoteService.noteable_moved(@new_issue, @new_project,
+                                       @old_issue, @current_user,
+                                       direction: :from)
+    end
+
+    def add_note_moved_to
+      SystemNoteService.noteable_moved(@old_issue, @old_project,
+                                       @new_issue, @current_user,
+                                       direction: :to)
+    end
+
+    def unfold_references(content)
+      rewriter = Gitlab::Gfm::ReferenceRewriter.new(content, @old_project,
+                                                    @current_user)
+      rewriter.rewrite(@new_project)
+    end
+
+    def notify_participants
+      notification_service.issue_moved(@old_issue, @new_issue, @current_user)
+    end
+
+    def mark_as_moved
+      @old_issue.update(moved_to: @new_issue)
+    end
+  end
+end

app/services/merge_requests/post_merge_service.rb

@@ -22,7 +22,7 @@ module MergeRequests
       closed_issues = merge_request.closes_issues(current_user)
       closed_issues.each do |issue|
         if can?(current_user, :update_issue, issue)
-          Issues::CloseService.new(project, current_user, {}).execute(issue, merge_request)
+          Issues::CloseService.new(project, current_user, {}).execute(issue, commit: merge_request)
         end
       end
     end

app/services/notification_service.rb

@@ -236,6 +236,16 @@ class NotificationService
     end
   end
 
+  def issue_moved(issue, new_issue, current_user)
+    recipients = build_recipients(issue, issue.project, current_user)
+
+    recipients.map do |recipient|
+      email = mailer.issue_moved_email(recipient, issue, new_issue, current_user)
+      email.deliver_later
+      email
+    end
+  end
+
   protected
 
   # Get project users with WATCH notification level

app/services/system_note_service.rb

@@ -411,4 +411,26 @@ class SystemNoteService
     body = "Marked the task **#{new_task.source}** as #{status_label}"
     create_note(noteable: noteable, project: project, author: author, note: body)
   end
+
+  # Called when noteable has been moved to another project
+  #
+  # direction    - symbol, :to or :from
+  # noteable     - Noteable object
+  # noteable_ref - Referenced noteable
+  # author       - User performing the move
+  #
+  # Example Note text:
+  #
+  #   "Moved to some_namespace/project_new#11"
+  #
+  # Returns the created Note object
+  def self.noteable_moved(noteable, project, noteable_ref, author, direction:)
+    unless [:to, :from].include?(direction)
+      raise ArgumentError, "Invalid direction `#{direction}`"
+    end
+
+    cross_reference = noteable_ref.to_reference(project)
+    body = "Moved #{direction} #{cross_reference}"
+    create_note(noteable: noteable, project: project, author: author, note: body)
+  end
 end

app/views/layouts/notify.html.haml

 %html{lang: "en"}
   %head
     %meta{content: "text/html; charset=utf-8", "http-equiv" => "Content-Type"}
-      %title
-        GitLab
-  :css
-    img {
-      max-width: 100%;
-      height: auto;
-    }
-    p.details {
-      font-style:italic;
-      color:#777
-    }
-    .footer p {
-      font-size:small;
-      color:#777
-    }
-    pre.commit-message {
-      white-space: pre-wrap;
-    }
-    .file-stats a {
-      text-decoration: none;
-    }
-    .file-stats .new-file {
-      color: #090;
-    }
-    .file-stats .deleted-file {
-      color: #B00;
-    }
+    %title
+      GitLab
+    = stylesheet_link_tag 'notify'
   %body
     %div.content
       = yield

app/views/notify/issue_moved_email.html.haml

+%p
+  Issue was moved to another project.
+%p
+  New issue:
+  = link_to namespace_project_issue_url(@new_project.namespace, @new_project, @new_issue) do
+    = @new_issue.title

app/views/notify/issue_moved_email.text.erb

+Issue was moved to another project.
+
+New issue location:
+<%= namespace_project_issue_url(@new_project.namespace, @new_project, @new_issue) %>

app/views/projects/diffs/_line.html.haml

+- type = line.type
+%tr.line_holder{id: line_code, class: type}
+  - case type
+  - when 'match'
+    = render "projects/diffs/match_line", {line: line.text,
+      line_old: line.old_pos, line_new: line.new_pos, bottom: false, new_file: diff_file.new_file}
+  - when 'nonewline'
+    %td.old_line.diff-line-num
+    %td.new_line.diff-line-num
+    %td.line_content.match= line.text
+  - else
+    %td.old_line.diff-line-num{class: type}
+      - link_text = raw(type == "new" ? " " : line.old_pos)
+      - if defined?(plain) && plain
+        = link_text
+      - else
+        = link_to link_text, "##{line_code}", id: line_code
+      - if @comments_allowed && can?(current_user, :create_note, @project)
+        = link_to_new_diff_note(line_code)
+    %td.new_line.diff-line-num{class: type, data: {linenumber: line.new_pos}}
+      - link_text = raw(type == "old" ? " " : line.new_pos)
+      - if defined?(plain) && plain
+        = link_text
+      - else
+        = link_to link_text, "##{line_code}", id: line_code
+    %td.line_content{class: "noteable_line #{type} #{line_code}", data: { line_code: line_code }}= diff_line_content(line.text)

app/views/projects/diffs/_text_file.html.haml

@@ -8,26 +8,9 @@
   - last_line = 0
   - raw_diff_lines = diff_file.diff_lines.to_a
   - diff_file.highlighted_diff_lines.each_with_index do |line, index|
-    - type = line.type
-    - last_line = line.new_pos
     - line_code = generate_line_code(diff_file.file_path, line)
-    - line_old = line.old_pos
-    %tr.line_holder{ id: line_code, class: "#{type}" }
-      - if type == "match"
-        = render "projects/diffs/match_line", {line: line.text,
-          line_old: line_old, line_new: line.new_pos, bottom: false, new_file: diff_file.new_file}
-      - elsif type == 'nonewline'
-        %td.old_line.diff-line-num
-        %td.new_line.diff-line-num
-        %td.line_content.match= line.text
-      - else
-        %td.old_line.diff-line-num{class: type}
-          = link_to raw(type == "new" ? " " : line_old), "##{line_code}", id: line_code
-          - if @comments_allowed && can?(current_user, :create_note, @project)
-            = link_to_new_diff_note(line_code)
-        %td.new_line.diff-line-num{class: type, data: {linenumber: line.new_pos}}
-          = link_to raw(type == "old" ? " " : line.new_pos), "##{line_code}", id: line_code
-        %td.line_content{class: "noteable_line #{type} #{line_code}", data: { line_code: line_code }}= diff_line_content(line.text)
+    - last_line = line.new_pos
+    = render "projects/diffs/line", {line: line, diff_file: diff_file, line_code: line_code}
 
     - if @reply_allowed
       - comments = @line_notes.select { |n| n.line_code == line_code && n.active? }.sort_by(&:created_at)

app/views/shared/issuable/_form.html.haml

@@ -85,13 +85,26 @@
       - if can? current_user, :admin_label, issuable.project
         = link_to 'Create new label', new_namespace_project_label_path(issuable.project.namespace, issuable.project), target: :blank
 
+- if issuable.can_move?(current_user)
+  %hr
+  .form-group
+    = label_tag :move_to_project_id, 'Move', class: 'control-label'
+    .col-sm-10
+      - projects = project_options(issuable, current_user, ability: :admin_issue)
+      = select_tag(:move_to_project_id, projects, include_blank: true,
+                   class: 'select2', data: { placeholder: 'Select project' })
+       
+      %span{ data: { toggle: 'tooltip', placement: 'auto top' }, style: 'cursor: default',
+      title: 'Moving an issue will copy the discussion to a different project and close it here. All participants will be notified of the new location.' }
+        = icon('question-circle')
+
 - if issuable.is_a?(MergeRequest)
   %hr
-    - if @merge_request.new_record?
-      .form-group
-        = f.label :source_branch, class: 'control-label'
-        .col-sm-10
-          = f.select(:source_branch, [@merge_request.source_branch], { }, { class: 'source_branch select2 span2', disabled: true })
+  - if @merge_request.new_record?
+    .form-group
+      = f.label :source_branch, class: 'control-label'
+      .col-sm-10
+        = f.select(:source_branch, [@merge_request.source_branch], { }, { class: 'source_branch select2 span2', disabled: true })
   .form-group
     = f.label :target_branch, class: 'control-label'
     .col-sm-10

app/workers/repository_fork_worker.rb

@@ -20,14 +20,15 @@ class RepositoryForkWorker
       return
     end
 
+    project.repository.after_import
+
     unless project.valid_repo?
-      logger.error("Project #{id} had an invalid repository after fork")
+      logger.error("Project #{project_id} had an invalid repository after fork")
       project.update(import_error: "The forked repository is invalid.")
       project.import_fail
       return
     end
 
-    project.repository.after_import
     project.import_finish
   end
 end

config/application.rb

@@ -49,6 +49,7 @@ module Gitlab
     config.assets.paths << Gemojione.index.images_path
     config.assets.precompile << "*.png"
     config.assets.precompile << "print.css"
+    config.assets.precompile << "notify.css"
 
     # Version of your assets, change this if you want to expire all your assets
     config.assets.version = '1.0'

config/initializers/premailer.rb

+# See https://github.com/fphilipe/premailer-rails#configuration
+Premailer::Rails.config.merge!(
+  generate_text_part: false,
+  preserve_styles: true,
+  remove_comments: true,
+  remove_ids: true
+)

db/migrate/20160317092222_add_moved_to_to_issue.rb

+class AddMovedToToIssue < ActiveRecord::Migration
+  def change
+    add_reference :issues, :moved_to, references: :issues
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160316204731) do
+ActiveRecord::Schema.define(version: 20160317092222) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -416,7 +416,8 @@ ActiveRecord::Schema.define(version: 20160316204731) do
     t.string   "state"
     t.integer  "iid"
     t.integer  "updated_by_id"
-    t.boolean  "confidential",  default: false
+    t.integer  "moved_to_id"
+    t.boolean  "confidential",              default: false
   end
 
   add_index "issues", ["assignee_id"], name: "index_issues_on_assignee_id", using: :btree

doc/install/installation.md

@@ -348,7 +348,7 @@ GitLab Shell is an SSH access and repository management software developed speci
     cd /home/git
     sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-workhorse.git
     cd gitlab-workhorse
-    sudo -u git -H git checkout 0.6.5
+    sudo -u git -H git checkout v0.7.1
     sudo -u git -H make
 
 ### Initialize Database and Activate Advanced Features

doc/update/8.5-to-8.6.md

@@ -58,7 +58,7 @@ GitLab 8.1.
 ```bash
 cd /home/git/gitlab-workhorse
 sudo -u git -H git fetch --all
-sudo -u git -H git checkout 0.6.5
+sudo -u git -H git checkout v0.7.1
 sudo -u git -H make
 ```
 

features/project/issues/issues.feature

@@ -160,6 +160,7 @@ Feature: Project Issues
 
   Scenario: Issues on empty project
     Given empty project "Empty Project"
+    And I have an ssh key
     When I visit empty project page
     And I see empty project details with ssh clone info
     When I visit empty project's issues page

features/steps/project/issues/issues.rb

@@ -5,6 +5,7 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
   include SharedNote
   include SharedPaths
   include SharedMarkdown
+  include SharedUser
 
   step 'I should see "Release 0.4" in issues' do
     expect(page).to have_content "Release 0.4"
@@ -240,7 +241,7 @@ class Spinach::Features::ProjectIssues < Spinach::FeatureSteps
   end
 
   step 'empty project "Empty Project"' do
-    create :empty_project, name: 'Empty Project', namespace: @user.namespace
+    create :project_empty_repo, name: 'Empty Project', namespace: @user.namespace
   end
 
   When 'I visit empty project page' do

lib/banzai/filter/reference_filter.rb

@@ -47,6 +47,7 @@ module Banzai
       # Returns a String
       def data_attribute(attributes = {})
         attributes[:reference_filter] = self.class.name.demodulize
+        attributes.delete(:original) if context[:no_original_data]
         attributes.map { |key, value| %Q(data-#{key.to_s.dasherize}="#{escape_once(value)}") }.join(" ")
       end
 

lib/gitlab/gfm/reference_rewriter.rb

+module Gitlab
+  module Gfm
+    ##
+    # Class that unfolds local references in text.
+    #
+    # The initializer takes text in Markdown and project this text is valid
+    # in context of.
+    #
+    # `unfold` method tries to find all local references and unfold each of
+    # those local references to cross reference format, assuming that the
+    # argument passed to this method is a project that references will be
+    # viewed from (see `Referable#to_reference method).
+    #
+    # Examples:
+    #
+    # 'Hello, this issue is related to #123 and
+    #  other issues labeled with ~"label"', will be converted to:
+    #
+    # 'Hello, this issue is related to gitlab-org/gitlab-ce#123 and
+    #  other issue labeled with gitlab-org/gitlab-ce~"label"'.
+    #
+    # It does respect markdown lexical rules, so text in code block will not be
+    # replaced, see another example:
+    #
+    # 'Merge request for issue #1234, see also link:
+    #  http://gitlab.com/some/link/#1234, and code `puts #1234`' =>
+    #
+    # 'Merge request for issue gitlab-org/gitlab-ce#1234, se also link:
+    #  http://gitlab.com/some/link/#1234, and code `puts #1234`'
+    #
+    class ReferenceRewriter
+      def initialize(text, source_project, current_user)
+        @text = text
+        @source_project = source_project
+        @current_user = current_user
+        @original_html = markdown(text)
+      end
+
+      def rewrite(target_project)
+        pattern = Gitlab::ReferenceExtractor.references_pattern
+
+        @text.gsub(pattern) do |reference|
+          unfold_reference(reference, Regexp.last_match, target_project)
+        end
+      end
+
+      private
+
+      def unfold_reference(reference, match, target_project)
+        before = @text[0...match.begin(0)]
+        after = @text[match.end(0)..-1]
+
+        referable = find_referable(reference)
+        return reference unless referable
+
+        cross_reference = referable.to_reference(target_project)
+        return reference if reference == cross_reference
+
+        new_text = before + cross_reference + after
+        substitution_valid?(new_text) ? cross_reference : reference
+      end
+
+      def find_referable(reference)
+        extractor = Gitlab::ReferenceExtractor.new(@source_project,
+                                                   @current_user)
+        extractor.analyze(reference)
+        extractor.all.first
+      end
+
+      def substitution_valid?(substituted)
+        @original_html == markdown(substituted)
+      end
+
+      def markdown(text)
+        Banzai.render(text, project: @source_project, no_original_data: true)
+      end
+    end
+  end
+end

lib/gitlab/reference_extractor.rb

 module Gitlab
   # Extract possible GFM references from an arbitrary String for further processing.
   class ReferenceExtractor < Banzai::ReferenceExtractor
+    REFERABLES = %i(user issue label milestone merge_request snippet commit commit_range)
     attr_accessor :project, :current_user, :author
 
     def initialize(project, current_user = nil, author = nil)
@@ -17,7 +18,7 @@ module Gitlab
       super(text, context.merge(project: project))
     end
 
-    %i(user label milestone merge_request snippet commit commit_range).each do |type|
+    REFERABLES.each do |type|
       define_method("#{type}s") do
         @references[type] ||= references(type, reference_context)
       end
@@ -31,6 +32,21 @@ module Gitlab
       end
     end
 
+    def all
+      REFERABLES.each { |referable| send(referable.to_s.pluralize) }
+      @references.values.flatten
+    end
+
+    def self.references_pattern
+      return @pattern if @pattern
+
+      patterns = REFERABLES.map do |ref|
+        ref.to_s.classify.constantize.try(:reference_pattern)
+      end
+
+      @pattern = Regexp.union(patterns.compact)
+    end
+
     private
 
     def reference_context

spec/controllers/projects/issues_controller_spec.rb

@@ -2,7 +2,7 @@ require('spec_helper')
 
 describe Projects::IssuesController do
   describe "GET #index" do
-    let(:project) { create(:project) }
+    let(:project) { create(:project_empty_repo) }
     let(:user) { create(:user) }
     let(:issue) { create(:issue, project: project) }
 
@@ -41,7 +41,7 @@ describe Projects::IssuesController do
   end
 
   describe 'Confidential Issues' do
-    let(:project) { create(:empty_project, :public) }
+    let(:project) { create(:project_empty_repo, :public) }
     let(:assignee) { create(:assignee) }
     let(:author) { create(:user) }
     let(:non_member) { create(:user) }

spec/features/issues/move_spec.rb

+require 'rails_helper'
+
+feature 'issue move to another project' do
+  let(:user) { create(:user) }
+  let(:old_project) { create(:project) }
+  let(:text) { 'Some issue description' }
+
+  let(:issue) do
+    create(:issue, description: text, project: old_project, author: user)
+  end
+
+  background { login_as(user) }
+
+  context 'user does not have permission to move issue' do
+    background do
+      old_project.team << [user, :guest]
+
+      edit_issue(issue)
+    end
+
+    scenario 'moving issue to another project not allowed' do
+      expect(page).to have_no_select('move_to_project_id')
+    end
+  end
+
+  context 'user has permission to move issue' do
+    let!(:mr) { create(:merge_request, source_project: old_project) }
+    let(:new_project) { create(:project) }
+    let(:text) { 'Text with !1' }
+    let(:cross_reference) { old_project.to_reference }
+
+    background do
+      old_project.team << [user, :reporter]
+      new_project.team << [user, :reporter]
+
+      edit_issue(issue)
+    end
+
+    scenario 'moving issue to another project' do
+      select(new_project.name_with_namespace, from: 'move_to_project_id')
+      click_button('Save changes')
+
+      expect(current_url).to include project_path(new_project)
+
+      page.within('.issue') do
+        expect(page).to have_content("Text with #{cross_reference}!1")
+        expect(page).to have_content("Moved from #{cross_reference}#1")
+        expect(page).to have_content(issue.title)
+      end
+    end
+
+    context 'projects user does not have permission to move issue to exist' do
+      let!(:private_project) { create(:project, :private) }
+      let(:another_project) { create(:project) }
+      background { another_project.team << [user, :guest] }
+
+      scenario 'browsing projects in projects select' do
+        options = [ '', 'No project', new_project.name_with_namespace ]
+        expect(page).to have_select('move_to_project_id', options: options)
+      end
+    end
+
+    context 'issue has been already moved' do
+      let(:new_issue) { create(:issue, project: new_project) }
+      let(:issue) do
+        create(:issue, project: old_project, author: user, moved_to: new_issue)
+      end
+
+      scenario 'user wants to move issue that has already been moved' do
+        expect(page).to have_no_select('move_to_project_id')
+      end
+    end
+  end
+
+  def edit_issue(issue)
+    visit issue_path(issue)
+    page.within('.issuable-header') { click_link 'Edit' }
+  end
+
+  def issue_path(issue)
+    namespace_project_issue_path(issue.project.namespace, issue.project, issue)
+  end
+
+  def project_path(project)
+    namespace_project_path(new_project.namespace, new_project)
+  end
+end

spec/lib/gitlab/gfm/reference_rewriter_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Gfm::ReferenceRewriter do
+  let(:text) { 'some text' }
+  let(:old_project) { create(:project) }
+  let(:new_project) { create(:project) }
+  let(:user) { create(:user) }
+
+  before { old_project.team << [user, :guest] }
+
+  describe '#rewrite' do
+    subject do
+      described_class.new(text, old_project, user).rewrite(new_project)
+    end
+
+    context 'multiple issues and merge requests referenced' do
+      let!(:issue_first) { create(:issue, project: old_project) }
+      let!(:issue_second) { create(:issue, project: old_project) }
+      let!(:merge_request) { create(:merge_request, source_project: old_project) }
+
+      context 'plain text description' do
+        let(:text) { 'Description that references #1, #2 and !1' }
+
+        it { is_expected.to include issue_first.to_reference(new_project) }
+        it { is_expected.to include issue_second.to_reference(new_project) }
+        it { is_expected.to include merge_request.to_reference(new_project) }
+      end
+
+      context 'description with ignored elements' do
+        let(:text) do
+          "Hi. This references #1, but not `#2`\n" +
+          '<pre>and not !1</pre>'
+        end
+
+        it { is_expected.to include issue_first.to_reference(new_project) }
+        it { is_expected.to_not include issue_second.to_reference(new_project) }
+        it { is_expected.to_not include merge_request.to_reference(new_project) }
+      end
+
+      context 'description ambigous elements' do
+        context 'url' do
+          let(:url) { 'http://gitlab.com/#1' }
+          let(:text) { "This references #1, but not #{url}" }
+
+          it { is_expected.to include url }
+        end
+
+        context 'code' do
+          let(:text) { "#1, but not `[#1]`" }
+          it { is_expected.to eq "#{issue_first.to_reference(new_project)}, but not `[#1]`" }
+        end
+
+        context 'code reverse' do
+          let(:text) { "not `#1`, but #1" }
+          it { is_expected.to eq "not `#1`, but #{issue_first.to_reference(new_project)}" }
+        end
+
+        context 'code in random order' do
+          let(:text) { "#1, `#1`, #1, `#1`" }
+          let(:ref) { issue_first.to_reference(new_project) }
+
+          it { is_expected.to eq "#{ref}, `#1`, #{ref}, `#1`" }
+        end
+
+        context 'description with labels' do
+          let!(:label) { create(:label, id: 123, name: 'test', project: old_project) }
+          let(:project_ref) { old_project.to_reference }
+
+          context 'label referenced by id' do
+            let(:text) { '#1 and ~123' }
+            it { is_expected.to eq %Q{#{project_ref}#1 and #{project_ref}~123} }
+          end
+
+          context 'label referenced by text' do
+            let(:text) { '#1 and ~"test"' }
+            it { is_expected.to eq %Q{#{project_ref}#1 and #{project_ref}~123} }
+          end
+        end
+      end
+
+      context 'reference contains milestone' do
+        let(:milestone) { create(:milestone) }
+        let(:text) { "milestone ref: #{milestone.to_reference}" }
+
+        it { is_expected.to eq text }
+      end
+    end
+  end
+end

spec/lib/gitlab/reference_extractor_spec.rb

@@ -124,4 +124,24 @@ describe Gitlab::ReferenceExtractor, lib: true do
       expect(extracted).to match_array([issue])
     end
   end
+
+  describe '#all' do
+    let(:issue) { create(:issue, project: project) }
+    let(:label) { create(:label, project: project) }
+    let(:text) { "Ref. #{issue.to_reference} and #{label.to_reference}" }
+
+    before do
+      project.team << [project.creator, :developer]
+      subject.analyze(text)
+    end
+
+    it 'returns all referables' do
+      expect(subject.all).to match_array([issue, label])
+    end
+  end
+
+  describe '.references_pattern' do
+    subject { described_class.references_pattern }
+    it { is_expected.to be_kind_of Regexp }
+  end
 end

spec/mailers/notify_spec.rb

@@ -158,6 +158,33 @@ describe Notify do
             is_expected.to have_body_text /#{namespace_project_issue_path project.namespace, project, issue}/
           end
         end
+
+        describe 'moved to another project' do
+          let(:new_issue) { create(:issue) }
+          subject { Notify.issue_moved_email(recipient, issue, new_issue, current_user) }
+
+          it_behaves_like 'an answer to an existing thread', 'issue'
+          it_behaves_like 'it should show Gmail Actions View Issue link'
+          it_behaves_like 'an unsubscribeable thread'
+
+          it 'contains description about action taken' do
+            is_expected.to have_body_text 'Issue was moved to another project'
+          end
+
+          it 'has the correct subject' do
+            is_expected.to have_subject /#{issue.title} \(##{issue.iid}\)/i
+          end
+
+          it 'contains link to new issue' do
+            new_issue_url = namespace_project_issue_path(new_issue.project.namespace,
+                                                         new_issue.project, new_issue)
+            is_expected.to have_body_text new_issue_url
+          end
+
+          it 'contains a link to the original issue' do
+            is_expected.to have_body_text /#{namespace_project_issue_path project.namespace, project, issue}/
+          end
+        end
       end
 
       context 'for merge requests' do

spec/models/issue_spec.rb

@@ -130,12 +130,62 @@ describe Issue, models: true do
     end
   end
 
+  describe '#can_move?' do
+    let(:user) { create(:user) }
+    let(:issue) { create(:issue) }
+    subject { issue.can_move?(user) }
+
+    context 'user is not a member of project issue belongs to' do
+      it { is_expected.to eq false}
+    end
+
+    context 'user is reporter in project issue belongs to' do
+      let(:project) { create(:project) }
+      let(:issue) { create(:issue, project: project) }
+
+      before { project.team << [user, :reporter] }
+
+      it { is_expected.to eq true }
+
+      context 'checking destination project also' do
+        subject { issue.can_move?(user, to_project) }
+        let(:to_project) { create(:project) }
+
+        context 'destination project allowed' do
+          before { to_project.team << [user, :reporter] }
+          it { is_expected.to eq true }
+        end
+
+        context 'destination project not allowed' do
+          before { to_project.team << [user, :guest] }
+          it { is_expected.to eq false }
+        end
+      end
+    end
+  end
+
+  describe '#moved?' do
+    let(:issue) { create(:issue) }
+    subject { issue.moved? }
+
+    context 'issue not moved' do
+      it { is_expected.to eq false }
+    end
+
+    context 'issue already moved' do
+      let(:moved_to_issue) { create(:issue) }
+      let(:issue) { create(:issue, moved_to: moved_to_issue) }
+
+      it { is_expected.to eq true }
+    end
+  end
+
   describe '#related_branches' do
     it "selects the right branches" do
       allow(subject.project.repository).to receive(:branch_names).
-                                    and_return(["mpempe", "#{subject.iid}mepmep", subject.to_branch_name])
+        and_return(["mpempe", "#{subject.iid}mepmep", subject.to_branch_name])
 
-      expect(subject.related_branches).to eq [subject.to_branch_name]
+      expect(subject.related_branches).to eq([subject.to_branch_name])
     end
   end
 

spec/models/project_spec.rb

@@ -720,4 +720,45 @@ describe Project, models: true do
       expect(described_class.search_by_title('KITTENS')).to eq([project])
     end
   end
+
+  describe '#create_repository' do
+    let(:project) { create(:project) }
+    let(:shell) { Gitlab::Shell.new }
+
+    before do
+      allow(project).to receive(:gitlab_shell).and_return(shell)
+    end
+
+    context 'using a regular repository' do
+      it 'creates the repository' do
+        expect(shell).to receive(:add_repository).
+          with(project.path_with_namespace).
+          and_return(true)
+
+        expect(project.repository).to receive(:after_create)
+
+        expect(project.create_repository).to eq(true)
+      end
+
+      it 'adds an error if the repository could not be created' do
+        expect(shell).to receive(:add_repository).
+          with(project.path_with_namespace).
+          and_return(false)
+
+        expect(project.repository).not_to receive(:after_create)
+
+        expect(project.create_repository).to eq(false)
+        expect(project.errors).not_to be_empty
+      end
+    end
+
+    context 'using a forked repository' do
+      it 'does nothing' do
+        expect(project).to receive(:forked?).and_return(true)
+        expect(shell).not_to receive(:add_repository)
+
+        project.create_repository
+      end
+    end
+  end
 end

spec/models/project_wiki_spec.rb

@@ -244,6 +244,18 @@ describe ProjectWiki, models: true do
     end
   end
 
+  describe '#create_repo!' do
+    it 'creates a repository' do
+      expect(subject).to receive(:init_repo).
+        with(subject.path_with_namespace).
+        and_return(true)
+
+      expect(subject.repository).to receive(:after_create)
+
+      expect(subject.create_repo!).to be_an_instance_of(Gollum::Wiki)
+    end
+  end
+
   private
 
   def create_temp_repo(path)

spec/models/repository_spec.rb

@@ -537,6 +537,12 @@ describe Repository, models: true do
 
         repository.before_delete
       end
+
+      it 'flushes the exists cache' do
+        expect(repository).to receive(:expire_exists_cache)
+
+        repository.before_delete
+      end
     end
 
     describe 'when a repository exists' do
@@ -593,6 +599,12 @@ describe Repository, models: true do
 
       repository.after_import
     end
+
+    it 'flushes the exists cache' do
+      expect(repository).to receive(:expire_exists_cache)
+
+      repository.after_import
+    end
   end
 
   describe '#after_push_commit' do
@@ -619,6 +631,14 @@ describe Repository, models: true do
     end
   end
 
+  describe '#after_create' do
+    it 'flushes the exists cache' do
+      expect(repository).to receive(:expire_exists_cache)
+
+      repository.after_create
+    end
+  end
+
   describe "#main_language" do
     it 'shows the main language of the project' do
       expect(repository.main_language).to eq("Ruby")
@@ -781,6 +801,16 @@ describe Repository, models: true do
     end
   end
 
+  describe '#expire_exists_cache' do
+    let(:cache) { repository.send(:cache) }
+
+    it 'expires the cache' do
+      expect(cache).to receive(:expire).with(:exists?)
+
+      repository.expire_exists_cache
+    end
+  end
+
   describe '#build_cache' do
     let(:cache) { repository.send(:cache) }
 

spec/services/issues/move_service_spec.rb

+require 'spec_helper'
+
+describe Issues::MoveService, services: true do
+  let(:user) { create(:user) }
+  let(:author) { create(:user) }
+  let(:title) { 'Some issue' }
+  let(:description) { 'Some issue description' }
+  let(:old_project) { create(:project) }
+  let(:new_project) { create(:project) }
+
+  let(:old_issue) do
+    create(:issue, title: title, description: description,
+                   project: old_project, author: author)
+  end
+
+  let(:move_service) do
+    described_class.new(old_project, user)
+  end
+
+  shared_context 'user can move issue' do
+    before do
+      old_project.team << [user, :reporter]
+      new_project.team << [user, :reporter]
+    end
+  end
+
+  describe '#execute' do
+    shared_context 'issue move executed' do
+      let!(:new_issue) { move_service.execute(old_issue, new_project) }
+    end
+
+    context 'issue movable' do
+      include_context 'user can move issue'
+
+      context 'generic issue' do
+        include_context 'issue move executed'
+
+        it 'creates a new issue in a new project' do
+          expect(new_issue.project).to eq new_project
+        end
+
+        it 'rewrites issue title' do
+          expect(new_issue.title).to eq title
+        end
+
+        it 'rewrites issue description' do
+          expect(new_issue.description).to eq description
+        end
+
+        it 'adds system note to old issue at the end' do
+          expect(old_issue.notes.last.note).to match /^Moved to/
+        end
+
+        it 'adds system note to new issue at the end' do
+          expect(new_issue.notes.last.note).to match /^Moved from/
+        end
+
+        it 'closes old issue' do
+          expect(old_issue.closed?).to be true
+        end
+
+        it 'persists new issue' do
+          expect(new_issue.persisted?).to be true
+        end
+
+        it 'persists all changes' do
+          expect(old_issue.changed?).to be false
+          expect(new_issue.changed?).to be false
+        end
+
+        it 'preserves author' do
+          expect(new_issue.author).to eq author
+        end
+
+        it 'removes data that is invalid in new context' do
+          expect(new_issue.milestone).to be_nil
+          expect(new_issue.labels).to be_empty
+        end
+
+        it 'creates a new internal id for issue' do
+          expect(new_issue.iid).to be 1
+        end
+
+        it 'marks issue as moved' do
+          expect(old_issue.moved?).to eq true
+          expect(old_issue.moved_to).to eq new_issue
+        end
+      end
+
+      context 'issue with notes' do
+        context 'notes without references' do
+          let(:notes_params) do
+            [{ system: false, note: 'Some comment 1' },
+             { system: true, note: 'Some system note' },
+             { system: false, note: 'Some comment 2' }]
+          end
+
+          let(:notes_contents) { notes_params.map { |n| n[:note] } }
+
+          before do
+            note_params = { noteable: old_issue, project: old_project, author: author }
+            notes_params.each do |note|
+              create(:note, note_params.merge(note))
+            end
+          end
+
+          include_context 'issue move executed'
+
+          let(:all_notes) { new_issue.notes.order('id ASC') }
+          let(:system_notes) { all_notes.system }
+          let(:user_notes) { all_notes.user }
+
+          it 'rewrites existing notes in valid order' do
+            expect(all_notes.pluck(:note).first(3)).to eq notes_contents
+          end
+
+          it 'adds a system note about move after rewritten notes' do
+            expect(system_notes.last.note).to match /^Moved from/
+          end
+
+          it 'preserves orignal author of comment' do
+            expect(user_notes.pluck(:author_id)).to all(eq(author.id))
+          end
+
+          it 'preserves time when note has been created at' do
+            expect(old_issue.notes.first.created_at)
+              .to eq new_issue.notes.first.created_at
+          end
+        end
+
+        context 'notes with references' do
+          before do
+            create(:merge_request, source_project: old_project)
+            create(:note, noteable: old_issue, project: old_project, author: author,
+                          note: 'Note with reference to merge request !1')
+          end
+
+          include_context 'issue move executed'
+          let(:new_note) { new_issue.notes.first }
+
+          it 'rewrites references using a cross reference to old project' do
+            expect(new_note.note)
+              .to eq "Note with reference to merge request #{old_project.to_reference}!1"
+          end
+        end
+      end
+
+      describe 'rewritting references' do
+        include_context 'issue move executed'
+
+        context 'issue reference' do
+          let(:another_issue) { create(:issue, project: old_project) }
+          let(:description) { "Some description #{another_issue.to_reference}" }
+
+          it 'rewrites referenced issues creating cross project reference' do
+            expect(new_issue.description)
+              .to eq "Some description #{old_project.to_reference}#{another_issue.to_reference}"
+          end
+        end
+      end
+
+      context 'moving to same project' do
+        let(:new_project) { old_project }
+
+        it 'raises error' do
+          expect { move_service.execute(old_issue, new_project) }
+            .to raise_error(StandardError, /Cannot move issue/)
+        end
+      end
+    end
+
+    describe 'move permissions' do
+      let(:move) { move_service.execute(old_issue, new_project) }
+
+      context 'user is reporter in both projects' do
+        include_context 'user can move issue'
+        it { expect { move }.to_not raise_error }
+      end
+
+      context 'user is reporter only in new project' do
+        before { new_project.team << [user, :reporter] }
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+
+      context 'user is reporter only in old project' do
+        before { old_project.team << [user, :reporter] }
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+
+      context 'user is reporter in one project and guest in another' do
+        before do
+          new_project.team << [user, :guest]
+          old_project.team << [user, :reporter]
+        end
+
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+
+      context 'issue has already been moved' do
+        include_context 'user can move issue'
+
+        let(:moved_to_issue) { create(:issue) }
+
+        let(:old_issue) do
+          create(:issue, project: old_project, author: author,
+                         moved_to: moved_to_issue)
+        end
+
+        it { expect { move }.to raise_error(StandardError, /permissions/) }
+      end
+    end
+  end
+end

spec/services/system_note_service_spec.rb

@@ -453,6 +453,59 @@ describe SystemNoteService, services: true do
     end
   end
 
+  describe '.noteable_moved' do
+    let(:new_project) { create(:project) }
+    let(:new_noteable) { create(:issue, project: new_project) }
+
+    subject do
+      described_class.noteable_moved(noteable, project, new_noteable, author, direction: direction)
+    end
+
+    shared_examples 'cross project mentionable' do
+      include GitlabMarkdownHelper
+
+      it 'should contain cross reference to new noteable' do
+        expect(subject.note).to include cross_project_reference(new_project, new_noteable)
+      end
+
+      it 'should mention referenced noteable' do
+        expect(subject.note).to include new_noteable.to_reference
+      end
+
+      it 'should mention referenced project' do
+        expect(subject.note).to include new_project.to_reference
+      end
+    end
+
+    context 'moved to' do
+      let(:direction) { :to }
+
+      it_behaves_like 'cross project mentionable'
+
+      it 'should notify about noteable being moved to' do
+        expect(subject.note).to match /Moved to/
+      end
+    end
+
+    context 'moved from' do
+      let(:direction) { :from }
+
+      it_behaves_like 'cross project mentionable'
+
+      it 'should notify about noteable being moved from' do
+        expect(subject.note).to match /Moved from/
+      end
+    end
+
+    context 'invalid direction' do
+      let(:direction) { :invalid }
+
+      it 'should raise error' do
+        expect { subject }.to raise_error StandardError, /Invalid direction/
+      end
+    end
+  end
+
   include JiraServiceHelper
 
   describe 'JIRA integration' do

spec/workers/repository_fork_worker_spec.rb

@@ -3,12 +3,17 @@ require 'spec_helper'
 describe RepositoryForkWorker do
   let(:project) { create(:project) }
   let(:fork_project) { create(:project, forked_from_project: project) }
+  let(:shell) { Gitlab::Shell.new }
 
   subject { RepositoryForkWorker.new }
 
+  before do
+    allow(subject).to receive(:gitlab_shell).and_return(shell)
+  end
+
   describe "#perform" do
     it "creates a new repository from a fork" do
-      expect_any_instance_of(Gitlab::Shell).to receive(:fork_repository).with(
+      expect(shell).to receive(:fork_repository).with(
         project.path_with_namespace,
         fork_project.namespace.path
       ).and_return(true)
@@ -19,20 +24,26 @@ describe RepositoryForkWorker do
         fork_project.namespace.path)
     end
 
-    it 'flushes the empty caches' do
-      expect_any_instance_of(Gitlab::Shell).to receive(:fork_repository).
+    it 'flushes various caches' do
+      expect(shell).to receive(:fork_repository).
         with(project.path_with_namespace, fork_project.namespace.path).
         and_return(true)
 
       expect_any_instance_of(Repository).to receive(:expire_emptiness_caches).
         and_call_original
 
+      expect_any_instance_of(Repository).to receive(:expire_exists_cache).
+        and_call_original
+
       subject.perform(project.id, project.path_with_namespace,
                       fork_project.namespace.path)
     end
 
     it "handles bad fork" do
-      expect_any_instance_of(Gitlab::Shell).to receive(:fork_repository).and_return(false)
+      expect(shell).to receive(:fork_repository).and_return(false)
+
+      expect(subject.logger).to receive(:error)
+
       subject.perform(
         project.id,
         project.path_with_namespace,