Class: Imap::Backup::Migrator

Inherits:
Object
  • Object
show all
Defined in:
lib/imap/backup/migrator.rb

Overview

Copies a folder of backed-up emails to an online folder

Instance Method Summary collapse

Constructor Details

#initialize(serializer, folder, reset: false) ⇒ Migrator

Returns a new instance of Migrator.



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# File 'lib/imap/backup/migrator.rb', line 8

def initialize(serializer, folder, reset: false)
  @folder = folder
  @reset = reset
  @serializer = serializer
end

Instance Method Details

#run ⇒ void

This method returns an undefined value.

Runs the migration



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# File 'lib/imap/backup/migrator.rb', line 16

def run
  count = serializer.uids.count
  folder.create
  folder.clear if reset

  Logger.logger.debug "[#{folder.name}] #{count} to migrate"
  serializer.each_message(serializer.uids).with_index do |message, i|
    next if message.nil?

    log_prefix = "[#{folder.name}] uid: #{message.uid} (#{i + 1}/#{count}) -"
    Logger.logger.debug(
      "#{log_prefix} #{message.body.size} bytes"
    )

    begin
      folder.append(message)
    rescue StandardError => e
      Logger.logger.warn "#{log_prefix} append error: #{e}"
    end
  end
end