Module: BC3::Attrib

Defined in:
lib/bc3/helper.rb

Overview

Define DOS-Attributs.

www.xxcopy.com/xxcopy06.htm

     Bit 0     Read-Only
     Bit 1     Hidden
     Bit 2     System
     Bit 3     Volume Label
     Bit 4     Directory
     Bit 5     Archive

http://www.computerhope.com/attribhl.htm
Bit Positions	Hex	Description
0 0 0 0 0 0 0 1	01h	Read Only file
0 0 0 0 0 0 1 0	02h	Hidden file
0 0 0 0 0 1 0 0	04h	System file
0 0 0 0 1 0 0 0	08h	Volume Label
0 0 0 1 0 0 0 0	10h	Subdirectory
0 0 1 0 0 0 0 0	20h	Archive
0 1 0 0 0 0 0 0	40h	Reserved
1 0 0 0 0 0 0 0	80h	Reserved

Usage

attrib = Attrib::ReadOnly | Attrib::Hidden

Constant Summary collapse

ReadOnly = 
1
Hidden = 
2
System = 
4
VolumeLabel = 
8
Directory = 
16
Archive = 
32

Class Method Summary collapse

Class Method Details

.fileattrib(filename) ⇒ Object

How to read attributs/windows: blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/68298

Easier: call attrib and analyse output

fixme: CHeck OS

Raises:

  • (ArgumentError) 


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# File 'lib/bc3/helper.rb', line 42

def self.fileattrib(filename)
  attrib = 0
  
  raise ArgumentError, "Filename #{filename} not found" unless ::File.exists?(filename)
  
  attrib += Directory if ::File.directory?(filename)
  res = `attrib #{filename}`
  
  attrib += ReadOnly if res =~ /\A\S*R/
  attrib += Hidden  if res =~ /\A\S*H/
  attrib += System if res =~ /\A\S*S/
  #~ attrib += VolumeLabel = if res =~ /\A\S*/
  attrib += Archive if res =~ /\A\S*A/
  
  attrib
end