player: add "state dump" command to serialize state

This helps in case dtas-player is hit with SIGKILL or the system
crashes.  This does not fsync(2) as that could introduce delays on
slow filesystems.  Users should open the file manually and fsync
themselves if they need to.

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/dtas/state_file.rb b/lib/dtas/state_file.rb
index c009797..0ba876f 100644
--- a/lib/dtas/state_file.rb
+++ b/lib/dtas/state_file.rb
@@ -3,6 +3,8 @@
 require 'yaml'
 require 'tempfile'
 class DTAS::StateFile # :nodoc:
+  attr_reader :path
+
   def initialize(path, do_fsync = false)
     @path = path
     @do_fsync = do_fsync