feat: bundle multi-arch offline images into fnOS package

havline/cmd/offline_image.sh

@@ -0,0 +1,49 @@
+#!/bin/bash
+set -euo pipefail
+
+image_arch() {
+  case "$(uname -m)" in
+    x86_64|amd64) echo "amd64" ;;
+    aarch64|arm64) echo "arm64" ;;
+    *) return 1 ;;
+  esac
+}
+
+image_path() {
+  local arch="$1"
+  local primary="$TRIM_APPDEST/docker/havline-${TRIM_APPVER}-${arch}.tar.gz"
+
+  if [ -f "$primary" ]; then
+    echo "$primary"
+    return 0
+  fi
+
+  find "$TRIM_APPDEST" -name "havline-${TRIM_APPVER}-${arch}.tar.gz" 2>/dev/null | head -n 1
+}
+
+load_offline_image() {
+  local arch path
+
+  arch="$(image_arch)" || {
+    echo "不支持的设备架构：$(uname -m)" > "$TRIM_TEMP_LOGFILE"
+    exit 1
+  }
+
+  path="$(image_path "$arch")"
+  if [ -z "$path" ] || [ ! -f "$path" ]; then
+    echo "找不到离线镜像：havline-${TRIM_APPVER}-${arch}.tar.gz" > "$TRIM_TEMP_LOGFILE"
+    exit 1
+  fi
+
+  if ! docker load -i "$path" >/dev/null 2>&1; then
+    echo "加载离线镜像失败：$path" > "$TRIM_TEMP_LOGFILE"
+    exit 1
+  fi
+
+  if ! docker image inspect "havline:${TRIM_APPVER}" >/dev/null 2>&1; then
+    echo "离线镜像加载后未找到 havline:${TRIM_APPVER}" > "$TRIM_TEMP_LOGFILE"
+    exit 1
+  fi
+
+  echo "离线镜像已加载：$path"
+}