Class: Backup::Tasks::Directory

Inherits:
Object
  • Object
show all
Defined in:
lib/backup-agent/tasks/directory.rb

Instance Method Summary collapse

Constructor Details

#initialize(path, options = {}) ⇒ Directory

Returns a new instance of Directory.



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# File 'lib/backup-agent/tasks/directory.rb', line 6

def initialize(path, options = {})
  @path    = path
  # @name    = options.fetch(:name)
  @options = options

  if options[:compressor]
    @compressor = Symbol === options[:compressor] ? { type: options[:compressor] } : options[:compressor]
  end
end

Instance Method Details

#add_extension(name) ⇒ Object 



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# File 'lib/backup-agent/tasks/directory.rb', line 53

def add_extension(name)
  case @compressor&.fetch(:type)
    when :xz   then name + ".tar.xz"
    when :gzip then name + ".tar.gz"
    else            name + ".tar"
  end
end

#compression_environment ⇒ Object 



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# File 'lib/backup-agent/tasks/directory.rb', line 31

def compression_environment
  case @compressor&.fetch(:type)
    when :xz   then { XZ_OPT: "-#{@compressor.fetch(:level, 3)}" }
    when :gzip then { GZIP:   "-#{@compressor.fetch(:level, 3)}" }
  end
end

#perform(storage) ⇒ Object 



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# File 'lib/backup-agent/tasks/directory.rb', line 16

def perform(storage)
  return if !File.readable?(@path) || !File.directory?(@path)

  @options.fetch(:name, @path).tap do |x|
    @filename = add_extension(construct_filename(File.basename(x, ".*")) + File.extname(x))
  end

  Tempfile.open do |tempfile|
    with compression_environment do
      command "tar", tar_flags, tempfile.path, "-C", @path, "."
    end
    storage.store(@filename, tempfile.path)
  end
end

#tar_flags ⇒ Object 



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# File 'lib/backup-agent/tasks/directory.rb', line 38

def tar_flags
  flags = ["c"]

  flags << "h" if @options.fetch(:symlinks, :follow) == :follow

  case @compressor&.fetch(:type)
    when :xz   then flags << "J"
    when :gzip then flags << "z"
  end

  flags << "v"
  flags << "f"
  flags.join("")
end