Class: BackupRestore::Restorer

Inherits:
Object
  • Object
show all
Defined in:
lib/backup_restore/restorer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(user_id:, filename:, factory:, disable_emails: true, location: nil) ⇒ Restorer

Returns a new instance of Restorer.



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# File 'lib/backup_restore/restorer.rb', line 12

def initialize(user_id:, filename:, factory:, disable_emails: true, location: nil)
  @user_id = user_id
  @filename = filename
  @factory = factory
  @logger = factory.logger
  @disable_emails = disable_emails

  ensure_restore_is_enabled
  ensure_we_have_a_user
  ensure_we_have_a_filename

  @success = false
  @current_db = RailsMultisite::ConnectionManagement.current_db

  @system = factory.create_system_interface
  @backup_file_handler = factory.create_backup_file_handler(@filename, @current_db, location)
  @database_restorer = factory.create_database_restorer(@current_db)
  @uploads_restorer = factory.create_uploads_restorer
end

Instance Attribute Details

#success ⇒ Object (readonly)

Returns the value of attribute success.



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# File 'lib/backup_restore/restorer.rb', line 10

def success
  @success
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/backup_restore/restorer.rb', line 32

def run
  log "[STARTED]"
  log "'#{@user_info[:username]}' has started the restore!"

  # FIXME not atomic!
  ensure_no_operation_is_running
  @system.mark_restore_as_running

  @system.listen_for_shutdown_signal

  @tmp_directory, db_dump_path = @backup_file_handler.decompress
  validate_backup_metadata

  @system.enable_readonly_mode
  @system.pause_sidekiq("restore")
  @system.wait_for_sidekiq
  @system.flush_redis
  @system.clear_sidekiq_queues

  @database_restorer.restore(db_dump_path)

  reload_site_settings

  @system.disable_readonly_mode

  clear_category_cache
  clear_stats
  reload_translations

  @uploads_restorer.restore(@tmp_directory)

  clear_emoji_cache
  clear_theme_cache

  after_restore_hook
rescue Compression::Strategy::ExtractFailed
  log "ERROR: The uncompressed file is too big. Consider increasing the hidden " \
        '"decompressed_backup_max_file_size_mb" setting.'
  @database_restorer.rollback
rescue SystemExit
  log "Restore process was cancelled!"
  @database_restorer.rollback
rescue => ex
  log "EXCEPTION: " + ex.message
  log ex.backtrace.join("\n")
  @database_restorer.rollback
else
  @success = true
ensure
  clean_up
  notify_user
  log "Finished!"

  @success ? log("[SUCCESS]") : log("[FAILED]")
end