From 66dda8a7b860f8a95cfe2e20c844a7519de8402d Mon Sep 17 00:00:00 2001
From: "W. Trevor King" <wking@drexel.edu>
Date: Tue, 9 Nov 2010 16:18:06 -0500
Subject: [PATCH] Don't save digests in the playlist file.

They create dependency loops:
  digest_{i+1} = checksum(file with digest_i)
With the old way, exiting after
  $ hk.py -c 'new_playlist --output_playlist mylist'
          -c 'glob_curves_to_playlist ...*.curve'
          -c 'save_playlist --output mylist' -p
would complain of unsaved playlists.
---
 hooke/playlist.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hooke/playlist.py b/hooke/playlist.py
index 1543b9f..3b5c874 100644
--- a/hooke/playlist.py
+++ b/hooke/playlist.py
@@ -463,8 +463,10 @@ class FilePlaylist (Playlist):
         self._relative_curve_paths = self.relative_curve_paths
         self.update_curve_paths()
         self._relative_curve_paths = rcp
-
+        digest = self._digest
+        self._digest = None  # don't save the digest (recursive file).
         yaml_string = yaml.dump(self, allow_unicode=True)
+        self._digest = digest
         self.update_curve_paths()
         return ('# Hooke playlist version %s\n' % self.version) + yaml_string
 
-- 
2.26.2