Module: FileType::ExtractableDir

Defined in:

lib/file_type.rb

Class Method Summary

• .included(aClass) ⇒ Object
• .longest_common_path(log) ⇒ Object

  We want the longest common path.

Class Method Details

.included(aClass) ⇒ Object

# File 'lib/file_type.rb', line 188

def self.included ( aClass )

  aClass.module_eval do

    include Extractable

    remove_method :mk_cmd

    def mk_cmd ( out )
      @log = TempPath.new('log')
      cmd = extract_command[@tmp] < @path > @log
      @tmp.mkpath
      cmd
    end

    alias :extract_extractable :extract

    def extract
      dir = extract_extractable
      FileType.guess(dir.path + longest_common_path(@log).join('/'))
    end

  end

end

.longest_common_path(log) ⇒ Object

We want the longest common path

Raises:

• (CorruptedTarballError)

# File 'lib/file_type.rb', line 215

def longest_common_path ( log )
  longest = nil
  raise CorruptedTarballError, 'tar output empty' if log.zero?
  log.each_line do |line|
    line.chomp!
    path = line.split(/\//)
    longest = path if longest.nil?
    longest &= path
    raise CorruptedTarballError, log.read if longest.empty?
  end
  raise CorruptedTarballError, log.read if longest.nil?
  longest
end