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# == Schema Information
#
# Table name: projects
#
#  id                     :integer          not null, primary key
#  name                   :string(255)
#  path                   :string(255)
#  description            :text
#  created_at             :datetime         not null
#  updated_at             :datetime         not null
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#  creator_id             :integer
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#  default_branch         :string(255)
#  issues_enabled         :boolean          default(TRUE), not null
#  wall_enabled           :boolean          default(TRUE), not null
#  merge_requests_enabled :boolean          default(TRUE), not null
#  wiki_enabled           :boolean          default(TRUE), not null
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#  namespace_id           :integer
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#  public                 :boolean          default(FALSE), not null
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#  issues_tracker         :string(255)      default("gitlab"), not null
#  issues_tracker_id      :string(255)
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#  snippets_enabled       :boolean          default(TRUE), not null
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#  last_activity_at       :datetime
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#

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require "grit"

class Project < ActiveRecord::Base
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  include Gitlab::ShellAdapter
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  extend Enumerize
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  attr_accessible :name, :path, :description, :default_branch, :issues_tracker, :label_list,
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    :issues_enabled, :wall_enabled, :merge_requests_enabled, :snippets_enabled, :issues_tracker_id,
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    :wiki_enabled, :public, :import_url, :last_activity_at, as: [:default, :admin]
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  attr_accessible :namespace_id, :creator_id, as: :admin
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  acts_as_taggable_on :labels

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  attr_accessor :import_url
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  # Relations
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  belongs_to :creator,      foreign_key: "creator_id", class_name: "User"
  belongs_to :group,        foreign_key: "namespace_id", conditions: "type = 'Group'"
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  belongs_to :namespace
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  has_one :last_event, class_name: 'Event', order: 'events.created_at DESC', foreign_key: 'project_id'
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  has_one :gitlab_ci_service, dependent: :destroy
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  has_many :events,             dependent: :destroy
  has_many :merge_requests,     dependent: :destroy
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  has_many :issues,             dependent: :destroy, order: "state DESC, created_at DESC"
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  has_many :milestones,         dependent: :destroy
  has_many :users_projects,     dependent: :destroy
  has_many :notes,              dependent: :destroy
  has_many :snippets,           dependent: :destroy
  has_many :deploy_keys,        dependent: :destroy, class_name: "Key", foreign_key: "project_id"
  has_many :hooks,              dependent: :destroy, class_name: "ProjectHook"
  has_many :protected_branches, dependent: :destroy
  has_many :user_team_project_relationships, dependent: :destroy

  has_many :users,          through: :users_projects
  has_many :user_teams,     through: :user_team_project_relationships
  has_many :user_team_user_relationships, through: :user_teams
  has_many :user_teams_members, through: :user_team_user_relationships

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  delegate :name, to: :owner, allow_nil: true, prefix: true

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  # Validations
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  validates :creator, presence: true
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  validates :description, length: { within: 0..2000 }
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  validates :name, presence: true, length: { within: 0..255 },
            format: { with: Gitlab::Regex.project_name_regex,
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                      message: "only letters, digits, spaces & '_' '-' '.' allowed. Letter should be first" }
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  validates :path, presence: true, length: { within: 0..255 },
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            format: { with: Gitlab::Regex.path_regex,
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                      message: "only letters, digits & '_' '-' '.' allowed. Letter should be first" }
  validates :issues_enabled, :wall_enabled, :merge_requests_enabled,
            :wiki_enabled, inclusion: { in: [true, false] }
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  validates :issues_tracker_id, length: { within: 0..255 }
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  validates_uniqueness_of :name, scope: :namespace_id
  validates_uniqueness_of :path, scope: :namespace_id

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  validates :import_url,
    format: { with: URI::regexp(%w(http https)), message: "should be a valid url" },
    if: :import?
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  validate :check_limit, :repo_name

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  # Scopes
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  scope :without_user, ->(user)  { where("projects.id NOT IN (:ids)", ids: user.authorized_projects.map(&:id) ) }
  scope :without_team, ->(team) { team.projects.present? ? where("projects.id NOT IN (:ids)", ids: team.projects.map(&:id)) : scoped  }
  scope :not_in_group, ->(group) { where("projects.id NOT IN (:ids)", ids: group.project_ids ) }
  scope :in_team, ->(team) { where("projects.id IN (:ids)", ids: team.projects.map(&:id)) }
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  scope :in_namespace, ->(namespace) { where(namespace_id: namespace.id) }
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  scope :in_group_namespace, -> { joins(:group) }
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  scope :sorted_by_activity, -> { order("projects.last_activity_at DESC") }
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  scope :personal, ->(user) { where(namespace_id: user.namespace_id) }
  scope :joined, ->(user) { where("namespace_id != ?", user.namespace_id) }
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  scope :public_only, -> { where(public: true) }
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  enumerize :issues_tracker, in: (Gitlab.config.issues_tracker.keys).append(:gitlab), default: :gitlab
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  class << self
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    def abandoned
      project_ids = Event.select('max(created_at) as latest_date, project_id').
        group('project_id').
        having('latest_date < ?', 6.months.ago).map(&:project_id)

      where(id: project_ids)
    end

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    def with_push
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      includes(:events).where('events.action = ?', Event::PUSHED)
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    end

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    def active
      joins(:issues, :notes, :merge_requests).order("issues.created_at, notes.created_at, merge_requests.created_at DESC")
    end
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    def search query
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      where("projects.name LIKE :query OR projects.path LIKE :query", query: "%#{query}%")
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    end
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    def find_with_namespace(id)
      if id.include?("/")
        id = id.split("/")
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        namespace = Namespace.find_by_path(id.first)
        return nil unless namespace

        where(namespace_id: namespace.id).find_by_path(id.second)
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      else
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        where(path: id, namespace_id: nil).last
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      end
    end

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    def access_options
      UsersProject.access_roles
    end
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  end

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  def team
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    @team ||= ProjectTeam.new(self)
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  end

  def repository
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    @repository ||= Repository.new(path_with_namespace, default_branch)
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  end

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  def saved?
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    id && persisted?
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  end

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  def import?
    import_url.present?
  end

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  def check_limit
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    unless creator.can_create_project?
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      errors[:limit_reached] << ("Your own projects limit is #{creator.projects_limit}! Please contact administrator to increase it")
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    end
  rescue
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    errors[:base] << ("Can't check your ability to create project")
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  end

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  def repo_name
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    denied_paths = %w(admin dashboard groups help profile projects search)
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    if denied_paths.include?(path)
      errors.add(:path, "like #{path} is not allowed")
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    end
  end
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  def to_param
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    if namespace
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      namespace.path + "/" + path
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    else
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      path
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    end
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  end

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  def web_url
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    [Gitlab.config.gitlab.url, path_with_namespace].join("/")
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  end

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  def build_commit_note(commit)
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    notes.new(commit_id: commit.id, noteable_type: "Commit")
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  end
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  def last_activity
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    last_event
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  end

  def last_activity_date
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    last_activity_at || updated_at
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  end
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  def project_id
    self.id
  end
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  def issues_labels
    issues.tag_counts_on(:labels)
  end
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  def issue_exists?(issue_id)
    if used_default_issues_tracker?
      self.issues.where(id: issue_id).first.present?
    else
      true
    end
  end

  def used_default_issues_tracker?
    self.issues_tracker == Project.issues_tracker.default_value
  end

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  def can_have_issues_tracker_id?
    self.issues_enabled && !self.used_default_issues_tracker?
  end

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  def services
    [gitlab_ci_service].compact
  end
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  def gitlab_ci?
    gitlab_ci_service && gitlab_ci_service.active
  end
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  # For compatibility with old code
  def code
    path
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  end
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  def items_for entity
    case entity
    when 'issue' then
      issues
    when 'merge_request' then
      merge_requests
    end
  end
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  def send_move_instructions
    self.users_projects.each do |member|
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      Notify.delay.project_was_moved_email(member.id)
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    end
  end
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  def owner
    if namespace
      namespace_owner
    else
      creator
    end
  end
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  def team_member_by_name_or_email(name = nil, email = nil)
    user = users.where("name like ? or email like ?", name, email).first
    users_projects.where(user: user) if user
  end

  # Get Team Member record by user id
  def team_member_by_id(user_id)
    users_projects.find_by_user_id(user_id)
  end

  def name_with_namespace
    @name_with_namespace ||= begin
                               if namespace
                                 namespace.human_name + " / " + name
                               else
                                 name
                               end
                             end
  end

  def namespace_owner
    namespace.try(:owner)
  end

  def path_with_namespace
    if namespace
      namespace.path + '/' + path
    else
      path
    end
  end

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  def transfer(new_namespace)
    ProjectTransferService.new.transfer(self, new_namespace)
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  end

  def execute_hooks(data)
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    hooks.each { |hook| hook.async_execute(data) }
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  end

  def execute_services(data)
    services.each do |service|

      # Call service hook only if it is active
      service.execute(data) if service.active
    end
  end

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  def discover_default_branch
    # Discover the default branch, but only if it hasn't already been set to
    # something else
    if repository && default_branch.nil?
      update_attributes(default_branch: self.repository.discover_default_branch)
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    end
  end

  def update_merge_requests(oldrev, newrev, ref, user)
    return true unless ref =~ /heads/
    branch_name = ref.gsub("refs/heads/", "")
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    c_ids = self.repository.commits_between(oldrev, newrev).map(&:id)
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    # Update code for merge requests
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    mrs = self.merge_requests.opened.by_branch(branch_name).all
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    mrs.each { |merge_request| merge_request.reload_code; merge_request.mark_as_unchecked }

    # Close merge requests
    mrs = self.merge_requests.opened.where(target_branch: branch_name).all
    mrs = mrs.select(&:last_commit).select { |mr| c_ids.include?(mr.last_commit.id) }
    mrs.each { |merge_request| merge_request.merge!(user.id) }

    true
  end

  def valid_repo?
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    repository.exists?
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  rescue
    errors.add(:path, "Invalid repository path")
    false
  end

  def empty_repo?
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    !repository.exists? || repository.empty?
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  end

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  def ensure_satellite_exists
    self.satellite.create unless self.satellite.exists?
  end

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  def satellite
    @satellite ||= Gitlab::Satellite::Satellite.new(self)
  end

  def repo
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    repository.raw
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  end

  def url_to_repo
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    gitlab_shell.url_to_repo(path_with_namespace)
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  end

  def namespace_dir
    namespace.try(:path) || ''
  end

  def repo_exists?
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    @repo_exists ||= repository.exists?
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  rescue
    @repo_exists = false
  end

  def open_branches
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    all_branches = repository.branches

    if protected_branches.present?
      all_branches.reject! do |branch|
        protected_branches_names.include?(branch.name)
      end
    end

    all_branches
  end

  def protected_branches_names
    @protected_branches_names ||= protected_branches.map(&:name)
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  end

  def root_ref?(branch)
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    repository.root_ref == branch
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  end

  def ssh_url_to_repo
    url_to_repo
  end

  def http_url_to_repo
    http_url = [Gitlab.config.gitlab.url, "/", path_with_namespace, ".git"].join('')
  end

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  def project_access_human(member)
    project_user_relation = self.users_projects.find_by_user_id(member.id)
    self.class.access_options.key(project_user_relation.project_access)
  end

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  # Check if current branch name is marked as protected in the system
  def protected_branch? branch_name
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    protected_branches_names.include?(branch_name)
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  end
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end