Class: Backs3::Restore

Inherits:
Object
  • Object
show all
Includes:
Backs3, Storage
Defined in:
lib/backs3/restore.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Backs3

#load_backup_info, #logger, #md5, #save_backup_info

Constructor Details

#initialize(options = {}) ⇒ Restore

Returns a new instance of Restore.



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# File 'lib/backs3/restore.rb', line 13

def initialize(options = {})
  @options = options
  @options['prefix'] ||= ''
  @backups = load_backup_info.sort{|a,b| a.date <=> b.date }
end

Class Method Details

.commands ⇒ Object 



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# File 'lib/backs3/restore.rb', line 9

def self.commands
  %w(ls available restore cat info)
end

Instance Method Details

#available(backup_key = nil) ⇒ Object 



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# File 'lib/backs3/restore.rb', line 19

def available(backup_key = nil)
  if backup_key.nil?
    puts "Backups available: #{@backups.map{|b| b.date}.join(", ")}"
  else
    unless backup = @backups.detect{|b| b.date.to_s == backup_key.to_s }
      raise "No backup #{backup_key} available"
    end

    files = backup.all_files

    puts "Backup information for #{backup.date}"
    files.each do |file|
      puts "\tFile: #{file.path}, backed up #{Time.at(file.backup_info.date).to_s}"
    end
  end
end

#cat(date, name) ⇒ Object 



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# File 'lib/backs3/restore.rb', line 56

def cat(date, name)
  backup = @backups.detect{|b| b.date.to_s == date.to_s}
  raise "Cannot find backup #{date}" unless backup
  file = backup.all_files.detect{|f| f.path == name}
  raise "Cannot find file #{name}" unless file
  puts storage.read(File.join(backup.date.to_s, name))
end

#info(file) ⇒ Object 



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# File 'lib/backs3/restore.rb', line 36

def info(file)
  files = @backups.collect{|b| b.files}.flatten.select{|f| f.path == file}

  if files.empty?
    puts "No information found for file #{file}"
  else
    puts "Backup information for file #{file}"

    files.each do |f|
      puts "\tBacked up #{Time.at(f.backup_info.date).to_s} in #{f.backup_info.date} with md5sum #{f.md5sum}"
    end
  end
end

#ls(backup) ⇒ Object 



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# File 'lib/backs3/restore.rb', line 50

def ls(backup)
  storage.list(backup).each do |name|
    puts name
  end
end

#restore(date, file = nil) ⇒ Object 



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# File 'lib/backs3/restore.rb', line 64

def restore(date, file = nil)
  backup = @backups.detect{|b| b.date.to_s == date.to_s}
  raise 'Cannot find backup %s' % date if backup.nil?
  backup.restore('/tmp', file)
end