Class: FileSystem::FileAdapter

Inherits:
Object
  • Object
show all
Extended by:
Adapter
Defined in:
lib/filesystem.rb

Overview

:nodoc:

Class Method Summary collapse

Methods included from Adapter

get_node, method_missing, respond_to?

Class Method Details

.chmod(perms, *filenames) ⇒ Object 



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# File 'lib/filesystem.rb', line 110

def self.chmod( perms, *filenames )
  get_node( filenames.first ).permissions = perms
end

.exist?(filename) ⇒ Boolean Also known as: exists? 



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# File 'lib/filesystem.rb', line 115

def exist?( filename )
  begin
    get_node( filename )
    true
  rescue Errno::ENOENT
    false
  end
end

.open(fd, mode_string = File::RDONLY, &action) ⇒ Object 



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# File 'lib/filesystem.rb', line 127

def self.open( fd, mode_string = File::RDONLY, &action )
  if mode_string.class == String
    if mode_string == 'w'
      mode_string = File::WRONLY
    end
  end
  if mode_string == File::RDONLY
    node = get_node( fd )
    if node && node.permissions && node.permissions[0] == 0
      raise Errno::EACCES
    end
    result = action.call( node )
    node.rewind
    result
  else
    path = Path.new( fd ).absolute
    dir = get_node( path.parent )
    if ( mode_string & File::APPEND > 0 )
      mock_file = get_node( fd )
    else
      mock_file = MockFileSystem::MockFile.new( dir, path.node, '' )
    end
    if ( mode_string & File::APPEND == File::APPEND )
      mock_file.pos = mock_file.size
    end
    action.call( mock_file )
    mock_file.rewind
    if ( mode_string & File::APPEND == 0 )
      dir[path.node] = mock_file
    end
  end
end