From 1cb5ad3ac294ca8ff57754f1ee4078a516e84d5a Mon Sep 17 00:00:00 2001
From: Dan Fandrich <dan@coneharvesters.com>
Date: Wed, 29 Jan 2025 09:21:14 -0800
Subject: [PATCH] Expand note about xmlstarlet decompression

According to https://gitlab.gnome.org/GNOME/libxml2/-/issues/848#note_2333727,
transparent decompression will be removed from libxml2 which will affect
xmlstarlet.
---
 autodescribe | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/autodescribe b/autodescribe
index e68f023..9902b83 100755
--- a/autodescribe
+++ b/autodescribe
@@ -704,7 +704,9 @@ comment_svg () {
 
 # File type: svgz (Compressed Scalable Vector Graphics image)
 # requires: gzip, xmlstarlet
-# TODO: xmlstarlet can transparently gzip-decompress, so replace with comment_svg
+# TODO: xmlstarlet can optionally transparently decompress, but that feature is
+# likely to be removed some time after 2025 so we shouldn't rely on it here (or
+# for certain other file types).
 comment_svgz () {
 	COMMENT=$(gzip -dc < "$1" | xmlstarlet sel -t -v "/*[local-name()='svg']/*[local-name()='title']" 2> /dev/null)
 	if [ -z "$COMMENT" ] ; then