Class: Imap::Backup::Serializer::UnusedNameFinder

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

Overview

Finds a name that can be used to rename a serialized folder

Instance Method Summary collapse

Constructor Details

#initialize(serializer:) ⇒ UnusedNameFinder

Returns a new instance of UnusedNameFinder.

Parameters:



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

def initialize(serializer:)
  @serializer = serializer
end

Instance Method Details

#run ⇒ Serializer::Files::Path

Finds the name

Returns:



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

def run
  digit = 0
  files_path = nil

  loop do
    extra = digit.zero? ? "" : "-#{digit}"
    folder = "#{serializer.files_path.folder_name}-#{serializer.uid_validity}#{extra}"
    files_path = Serializer::Files::Path.new(
      base_path: serializer.files_path.base_path,
      folder_name: folder
    )
    imap_path = "#{files_path}.imap"
    mbox_path = "#{files_path}.mbox"
    break if !File.exist?(imap_path) && !File.exist?(mbox_path)

    digit += 1
  end

  files_path
end