Class: FakeFS::File::Stat

Inherits:
Object
  • Object
show all
Includes:
Comparable
Defined in:
lib/fakefs/file.rb

Overview

FakeFS Stat class

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file, lstat = false) ⇒ Stat

Returns a new instance of Stat.

Raises:

  • (Errno::ENOENT) 


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# File 'lib/fakefs/file.rb', line 360

def initialize(file, lstat = false)
  raise(Errno::ENOENT, file.to_s) unless File.exist?(file)

  @file      = file
  @fake_file = FileSystem.find(@file)
  @__lstat   = lstat
  @ctime     = @fake_file.ctime
  @mtime     = @fake_file.mtime
  @atime     = @fake_file.atime
  @mode      = @fake_file.mode
  @uid       = @fake_file.uid
  @gid       = @fake_file.gid
  @inode     = @fake_file.inode

  @birthtime =
    if @fake_file.respond_to?(:birthtime)
      @fake_file.birthtime
    else
      @fake_file.ctime
    end
end

Instance Attribute Details

#atime ⇒ Object (readonly)

Returns the value of attribute atime.



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# File 'lib/fakefs/file.rb', line 358

def atime
  @atime
end

#birthtime ⇒ Object (readonly)

Returns the value of attribute birthtime.



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# File 'lib/fakefs/file.rb', line 358

def birthtime
  @birthtime
end

#ctime ⇒ Object (readonly)

Returns the value of attribute ctime.



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# File 'lib/fakefs/file.rb', line 358

def ctime
  @ctime
end

#gid ⇒ Object (readonly)

Returns the value of attribute gid.



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# File 'lib/fakefs/file.rb', line 358

def gid
  @gid
end

#mode ⇒ Object (readonly)

Returns the value of attribute mode.



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# File 'lib/fakefs/file.rb', line 358

def mode
  @mode
end

#mtime ⇒ Object (readonly)

Returns the value of attribute mtime.



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# File 'lib/fakefs/file.rb', line 358

def mtime
  @mtime
end

#uid ⇒ Object (readonly)

Returns the value of attribute uid.



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# File 'lib/fakefs/file.rb', line 358

def uid
  @uid
end

Instance Method Details

#<=>(other) ⇒ Object 



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# File 'lib/fakefs/file.rb', line 461

def <=>(other)
  @mtime <=> other.mtime
end

#directory? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 386

def directory?
  File.directory?(@file)
end

#file? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 390

def file?
  File.file?(@file)
end

#ftype ⇒ Object 



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# File 'lib/fakefs/file.rb', line 394

def ftype
  return 'link' if symlink?
  return 'directory' if directory?
  'file'
end

#ino ⇒ Object 



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# File 'lib/fakefs/file.rb', line 455

def ino
  @inode.inode_num
end

#nlink ⇒ Object 



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# File 'lib/fakefs/file.rb', line 439

def nlink
  @fake_file.links.size
end

#readable? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 400

def readable?
  # a file is readable if, and only if, it has the following bits:
  #   4 ( read permission )
  #   5 ( read + execute permission )
  #   6 ( read + write permission )
  #   7 ( read + write + execute permission )
  # for each group we will isolate the wanted numbers ( for owner, world, or group )
  # and see if the third bit is set ( as that is the bit for read )
  read_bit = 4
  check_if_bit_set(read_bit)
end

#size ⇒ Object 



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# File 'lib/fakefs/file.rb', line 443

def size
  if @__lstat && symlink?
    @fake_file.target.size
  else
    File.size(@file)
  end
end

#sticky? ⇒ Boolean

Assume nothing is sticky.



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# File 'lib/fakefs/file.rb', line 425

def sticky?
  false
end

#symlink? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 382

def symlink?
  File.symlink?(@file)
end

#world_readable? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 435

def world_readable?
  0o777
end

#world_writable? ⇒ Boolean

World_writable and readable are platform dependent usually comparing with S_IROTH defined on compilation (MRI)



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# File 'lib/fakefs/file.rb', line 431

def world_writable?
  0o777
end

#writable? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 412

def writable?
  # a file is writable if, and only if, it has the following bits:
  #   2 ( write permission )
  #   3 ( write + execute permission )
  #   6 ( read + write permission )
  #   7 ( read + write + execute permission )
  # for each group we will isolate the wanted numbers ( for owner, world, or group )
  # and see if the second bit is set ( as that is the bit for write )
  write_bit = 2
  check_if_bit_set(write_bit)
end

#zero? ⇒ Boolean 



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# File 'lib/fakefs/file.rb', line 451

def zero?
  size == 0
end