Class: File

Inherits:
Object
  • Object
show all
Defined in:
lib/vim_printer/core_ext/file.rb

Overview

from: blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/44936

Class Method Summary collapse

Class Method Details

.binary?(name) ⇒ Boolean

Note: monkey patch to check if a given file is a binary

Returns:

  • (Boolean) 


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# File 'lib/vim_printer/core_ext/file.rb', line 4

def self.binary?(name)
  name = File.expand_path(name)
  my_stat = stat(name)
  return false unless my_stat.file?
  open(name) do |file|
    blk = file.read(my_stat.blksize)
    if blk
      return blk.size == 0 || blk.count("^ -~", "^\r\n") / blk.size > 0.3 || blk.count("\x00") > 0
    else
      false
    end
  end
end