Class: NFS::FileProxy

Inherits:
File
  • Object
show all
Defined in:
lib/nfs/file_proxy.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.new(*args, &block) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 4

def new(*args, &block)
  super(*args, &block)._nfs_setup
end

.open(*args) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 8

def open(*args)
  f = super(*args)._nfs_setup

  if block_given?
    begin
      return yield(f)
    ensure
      f.close
    end
  end

  f
end

Instance Method Details

#_lookup(name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 45

def _lookup(name)
  File.expand_path(name, @absolute_path)
end

#_nfs_setup ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 23

def _nfs_setup
  @absolute_path = File.expand_path(path)
  @looked_up = {}
  self
end

#create(name, mode, uid, gid) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 29

def create(name, mode, uid, gid)
  f = nil

  begin
    f = self.class.new(_lookup(name), File::RDWR | File::CREAT, mode)
  rescue
    f = self.class.new(_lookup(name), File::RDONLY | File::CREAT, mode)
  end

  stat = f.lstat

  @looked_up[[stat.ino, name]] = f

  [f, stat]
end

#delete(name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 68

def delete(name)
  File.delete(_lookup(name))
end

#entries ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 109

def entries
  Dir.entries(@absolute_path)
end

#link(dir, name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 76

def link(dir, name)
  File.link(@absolute_path, dir._lookup(name))
end

#lookup(name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 49

def lookup(name)
  f = nil

  begin
    f = self.class.new(_lookup(name), File::RDWR)
  rescue
    f = self.class.new(_lookup(name), File::RDONLY)
  end

  stat = f.lstat
  key = [stat.ino, name]

  if @looked_up.include?(key)
    @looked_up[key]
  else
    @looked_up[key] = f
  end
end

#mkdir(name, mode, uid, gid) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 88

def mkdir(name, mode, uid, gid)
  path = _lookup(name)
  Dir.mkdir(path, mode)

  f = self.class.new(path)
  #f.chown(uid, gid)

  stat = f.lstat
  @looked_up[[stat.ino, name]] = f

  [f, stat]
end

#readlink ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 84

def readlink
  File.readlink(@absolute_path)
end

#rename(from_name, to_dir, to_name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 72

def rename(from_name, to_dir, to_name)
  File.rename(_lookup(from_name), to_dir._lookup(to_name))
end

#rmdir(name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 101

def rmdir(name)
  Dir.delete(_lookup(name))
end

#symlink(name, to_name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 80

def symlink(name, to_name)
  File.symlink(to_name, _lookup(name))
end

#unlink(name) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 105

def unlink(name)
  File.unlink(_lookup(name))
end

#utime(atime, mtime) ⇒ Object 



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# File 'lib/nfs/file_proxy.rb', line 113

def utime(atime, mtime)
  File.utime(atime, mtime, @absolute_path)
end