Class: File

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

Class Method Summary collapse

Class Method Details

.write_with_backup(path, content) ⇒ Object

Equivalent to File::open with an associated block, but moves any existing file with the same name to the side first. Returns renamed path or false if none.



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# File 'lib/inline.rb', line 858

def self.write_with_backup(path, content)
  renamed = false

  if File.file? path then
    renamed = "#{path}.old"

    begin
      File.rename path, renamed
    rescue SystemCallError # in case of race condition
      # do nothing
    end
  end

  File.write path, content

  renamed
end