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bug#53229: 29.0.50; Image-dired is not reusing thumbnails created in ema
From: |
Thierry Volpiatto |
Subject: |
bug#53229: 29.0.50; Image-dired is not reusing thumbnails created in emacs-27 |
Date: |
Thu, 13 Jan 2022 19:53:23 +0000 |
After further searching, I discover image-dired is using sha1 to build
thumbnail filenames whereas in emacs-27 it uses md5, so the names are
differents and a new file is created.
I must use a different function to avoid duplicating all thumbnails,
using something like this:
(cl-letf (((symbol-function 'sha1) #'md5))
(image-dired-thumb-name file))
And while I was at it I used a cache to avoid calling md5 each time I
toggle or revisit an image directory with thumbnails, probably dired
should do the same as well, but it is a different issue.
--
Thierry
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