From 77c70c5d1b795b55e8cf299764d794352528cd04 Mon Sep 17 00:00:00 2001
From: CanbiZ <47820557+MickLesk@users.noreply.github.com>
Date: Fri, 4 Jul 2025 13:27:30 +0200
Subject: [PATCH] Update core.func

---
 misc/core.func | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/misc/core.func b/misc/core.func
index 8b1c07f1..4442f809 100644
--- a/misc/core.func
+++ b/misc/core.func
@@ -262,8 +262,20 @@ ensure_tput() {
 }
 
 is_alpine() {
-  echo "[DEBUG] is_alpine(): var_os='${var_os:-}'" >&2
-  [[ "${var_os:-}" == "alpine" ]]
+  local os_id="${var_os:-}"
+
+  if [[ -z "$os_id" ]]; then
+    if [[ -f /etc/os-release ]]; then
+      os_id="$(
+        . /etc/os-release 2>/dev/null
+        echo "${ID:-}"
+      )"
+    fi
+  fi
+
+  echo "[DEBUG] is_alpine(): os_id='${os_id}'" >&2
+
+  [[ "$os_id" == "alpine" ]]
 }
 
 is_verbose_mode() {