From f07e5fcc55da965ee3639ca0c708a44541925531 Mon Sep 17 00:00:00 2001
From: Natan Junges <natanajunges@gmail.com>
Date: Thu, 25 Aug 2022 15:07:26 +0000
Subject: [PATCH] Fix UPSTREAM_CODENAME for some Debian-derived distros

To handle custom `VERSION_CODENAME`s, it first looks for `DEBIAN_CODENAME`.
---
 deb-get | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/deb-get b/deb-get
index ca720042..76472d40 100755
--- a/deb-get
+++ b/deb-get
@@ -2592,7 +2592,12 @@ if [ -e /etc/os-release ]; then
 
     case "${UPSTREAM_ID}" in
         ubuntu) UPSTREAM_CODENAME=$(grep UBUNTU_CODENAME /etc/os-release | cut -d'=' -f2);;
-        debian) UPSTREAM_CODENAME=$(grep VERSION_CODENAME /etc/os-release | cut -d'=' -f2);;
+        debian)
+            UPSTREAM_CODENAME=$(grep DEBIAN_CODENAME /etc/os-release | cut -d'=' -f2)
+            if [ -z "${UPSTREAM_CODENAME}" ]; then
+                UPSTREAM_CODENAME=$(grep VERSION_CODENAME /etc/os-release | cut -d'=' -f2)
+            fi
+        ;;
         *) UPSTREAM_CODENAME="";;
     esac
 else