Class: Zold::AtomicFile

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

Overview

Atomic file

Instance Method Summary collapse

Constructor Details

#initialize(file) ⇒ AtomicFile

Returns a new instance of AtomicFile.



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# File 'lib/zold/atomic_file.rb', line 30

def initialize(file)
  raise 'File can\'t be nil' if file.nil?
  @file = file
  @mutex = Mutex.new
end

Instance Method Details

#read ⇒ Object 



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# File 'lib/zold/atomic_file.rb', line 36

def read
  @mutex.synchronize do
    File.open(@file, 'rb', &:read)
  end
end

#write(content) ⇒ Object 



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# File 'lib/zold/atomic_file.rb', line 42

def write(content)
  raise 'Content can\'t be nil' if content.nil?
  FileUtils.mkdir_p(File.dirname(@file))
  @mutex.synchronize do
    File.open(@file, 'wb') do |f|
      f.write(content)
    end
  end
end