修复生产部署污染选号网占位文件

scripts/deploy-prod.sh

@@ -96,6 +96,7 @@ RESET_DB=0
 FOLLOW_LOGS=0
 SKIP_CHECK=0
 NO_CLEAN=0
+SHOW_DIST_BACKUP_DIR=""
 
 while [[ $# -gt 0 ]]; do
   case "$1" in
@@ -261,6 +262,26 @@ export_caddy_env() {
   export CADDY_SHOW_DOMAIN
 }
 
+restore_show_dist_placeholders() {
+  if [[ -z "${SHOW_DIST_BACKUP_DIR}" || ! -d "${SHOW_DIST_BACKUP_DIR}" ]]; then
+    return 0
+  fi
+  local show_dist="${ROOT_DIR}/deploy/caddy/show-dist"
+  local git_restore_dir
+  git_restore_dir="$(mktemp -d "${TMPDIR:-/tmp}/hfb-show-dist-restore.XXXXXX")"
+  rm -rf "${show_dist}"
+  mkdir -p "${show_dist}"
+  if git -C "${ROOT_DIR}" show HEAD:deploy/caddy/show-dist/.gitkeep >"${git_restore_dir}/.gitkeep" 2>/dev/null \
+    && git -C "${ROOT_DIR}" show HEAD:deploy/caddy/show-dist/index.html >"${git_restore_dir}/index.html" 2>/dev/null; then
+    cp -a "${git_restore_dir}/." "${show_dist}/"
+  else
+    cp -a "${SHOW_DIST_BACKUP_DIR}/." "${show_dist}/"
+  fi
+  rm -rf "${git_restore_dir}"
+  rm -rf "${SHOW_DIST_BACKUP_DIR}"
+  SHOW_DIST_BACKUP_DIR=""
+}
+
 # 准备选号网静态资源与 Caddy 站点配置（可选）
 prepare_show_site() {
   local conf_dir="${ROOT_DIR}/deploy/caddy/conf.d"
@@ -355,6 +376,10 @@ prepare_show_site() {
       log_error "若仍网络失败，可在 backend/.env 设置 NPM_REGISTRY=https://registry.npmmirror.com 后重试"
       exit 1
     fi
+    # show-dist 中的 .gitkeep/index.html 是仓库占位文件。备份后再写入构建产物，
+    # 退出时由 restore_show_dist_placeholders 恢复，避免每次部署污染工作区。
+    SHOW_DIST_BACKUP_DIR="$(mktemp -d "${TMPDIR:-/tmp}/hfb-show-dist.XXXXXX")"
+    cp -a "${show_dist}/." "${SHOW_DIST_BACKUP_DIR}/"
     rm -rf "${show_dist}"
     mkdir -p "${show_dist}"
     cp -a "${show_dir}/dist/." "${show_dist}/"
@@ -579,6 +604,7 @@ main() {
   need_cmd flock
   validate_env
   export_caddy_env
+  trap restore_show_dist_placeholders EXIT
   prepare_log_dir
   prepare_backup_status_dir
   # 选号网需在 build caddy 之前准备 show-dist 与 conf.d