Class: RStyx::Server::DirectoryOnDisk

Inherits:
SDirectory show all
Defined in:
lib/rstyx/server.rb

Overview

Class representing a directory on the host filesystem. While there’s no real problem with using this class directly, it’s probably better to use FileOnDisk instead (it will return a DirectoryOnDisk instance when passed a directory.

Instance Attribute Summary

Attributes inherited from SFile

#atime, #gid, #mtime, #muid, #name, #parent, #permissions, #uid, #version

Instance Method Summary collapse

Methods inherited from SDirectory

#<<, #[], #child_count, #child_exists?, #newfile, #read, #remove_child

Methods inherited from SFile

#add_changelistener, #add_client, #appendonly?, #auth?, #can_setlength?, #can_setmode?, #can_setmtime?, #can_setname?, #client, #client_connected, #client_disconnected, #contents_changed, #delete, #directory?, #exclusive?, #filetype, #full_path, #length, #length=, #mode, #mode=, #num_clients, #qid, #read, #remove, #remove_client, #remove_dead_clients, #rename, #reply_read, #reply_write, #set_mtime, #stat, #uuid, #version_incr, #write

Constructor Details

#initialize(path, name, perm) ⇒ DirectoryOnDisk

Create a new DirectoryOnDisk instance. This



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# File 'lib/rstyx/server.rb', line 2018

def initialize(path, name, perm)
  @name = name
  @path = File.expand_path(path)

  s = File.stat(@path)
  pwent = Etc.getpwuid(s.uid)
  grent = Etc.getgrgid(s.gid)
  argv = { :permissions => perm & s.mode, :apponly => false,
    :excl => false, :uid => pwent.name, :gid => grent.name }
  super(@name, argv)
  self.refresh(false)
end

Instance Method Details

#refresh(update_children = true) ⇒ Object

Read all metadata from the underlying directory. If update_children is true, all immediate children of this directory will be refreshed as well. – TODO: check for files deleted in the host filesystem ++



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# File 'lib/rstyx/server.rb', line 2039

def refresh(update_children=true)
  s = File.stat(@path)
  @mtime = s.mtime
  @atime = s.atime
  unless update_children
    return
  end
  Dir.foreach(@path) do |file|
    # do not treat . or .. as valid files
    if file == '.' || file == '..'
      next
    end
    # Check if a file with this name is already known
    sf = self[file]
    if sf.nil?
      begin
        filepath = @path + File::SEPARATOR + file
        sf = FileOnDisk.new(filepath)
        if sf.is_a?(SDirectory)
          sf.permissions = @permissions
        else
          # This is an SFile (a FileOnDisk).  Set to the same permissions
          # as the host directory without the execute flags.
          sf.permissions = @permissions & 0666
        end
        self << sf
      rescue Exception => e
        # This should be impossible
      end
    else
      # The file is already known to us.  Refresh the file metadata
      # but do not descend into subdirectories (could lead to deep
      # recursion).
      if (sf.is_a?(SDirectory))
        sf.refresh(false)
      else
        sf.refresh
      end
    end
  end
end