Class: File

Inherits:
Object
  • Object
show all
Defined in:
lib/gem_modifier.rb

Overview

remove #require remove #autoload generate and add manifest to front of file add version.rb and config.rb files convert eval to module, instance or class eval eval def to define method #binding not support

Class Method Summary collapse

Class Method Details

.prepend(path, string) ⇒ Object 



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# File 'lib/gem_modifier.rb', line 16

def self.prepend(path, string)
  Tempfile.open File.basename(path) do |tempfile|
    # shift string to tempfile
    tempfile << string

    File.open(path, 'r+') do |file|
      # append original data to tempfile
      tempfile << file.read
      # reset file positions
      file.pos = tempfile.pos = 0
      # copy tempfile back to original file
      file << tempfile.read
    end
  end
end