Class: Imap::Backup::Serializer::Appender

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(folder:, imap:, mbox:) ⇒ Appender

Returns a new instance of Appender.



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# File 'lib/imap/backup/serializer/appender.rb', line 11

def initialize(folder:, imap:, mbox:)
  @folder = folder
  @imap = imap
  @mbox = mbox
end

Instance Attribute Details

#folder ⇒ Object (readonly)

Returns the value of attribute folder.



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

def folder
  @folder
end

#imap ⇒ Object (readonly)

Returns the value of attribute imap.



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# File 'lib/imap/backup/serializer/appender.rb', line 7

def imap
  @imap
end

#mbox ⇒ Object (readonly)

Returns the value of attribute mbox.



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# File 'lib/imap/backup/serializer/appender.rb', line 9

def mbox
  @mbox
end

Instance Method Details

#append(uid:, message:, flags:) ⇒ Object 



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# File 'lib/imap/backup/serializer/appender.rb', line 17

def append(uid:, message:, flags:)
  raise "Can't add messages without uid_validity" if !imap.uid_validity

  uid = uid.to_i
  existing = imap.get(uid)
  if existing
    Logger.logger.debug(
      "[#{folder}] message #{uid} already downloaded - skipping"
    )
    return
  end

  rollback_on_error do
    serialized = to_serialized(message)
    mbox.append serialized
    imap.append uid, serialized.bytesize, flags: flags
  rescue StandardError => e
    raise <<-ERROR.gsub(/^\s*/m, "")
      [#{folder}] failed to append message #{uid}: #{message}.
      #{e}:
      #{e.backtrace.join("\n")}"
    ERROR
  end
end