Class File
In:
Parent: IO

Methods

atomic_write   binread   dir?   read  

Public Class methods

atomic_write(file_name, temp_dir = Dir.tmpdir) {|temp_file| ...}

Write to a file atomically. Useful for situations where you don’t want other processes or threads to see half-written files. 

 File.atomic_write("important.file") do |file|
   file.write("hello")
 end

If your temp directory is not on the same filesystem as the file you’re trying to write, you can provide a different temporary directory.

File.atomic_write("/data/something.imporant", "/data/tmp") do |f| 

  file.write("hello")

end

[Source]

# File activesupport/lib/active_support/core_ext/file.rb, line 16
def File.atomic_write(file_name, temp_dir = Dir.tmpdir)
  temp_file = Tempfile.new(File.basename(file_name), temp_dir)
  yield temp_file
  temp_file.close
  File.rename(temp_file.path, file_name)
end
binread(fname)

[Source]

# File actionwebservice/setup.rb, line 44
def File.binread(fname)
  open(fname, 'rb') {|f|
    return f.read
  }
end
dir?(path)

for corrupted windows stat(2)

[Source]

# File actionwebservice/setup.rb, line 51
def File.dir?(path)
  File.directory?((path[-1,1] == '/') ? path : path + '/')
end
read(fname)

[Source]

# File actionwebservice/setup.rb, line 37
  def File.read(fname)
    open(fname) {|f|
      return f.read
    }
  end

[Validate]