From 2baa4fdc45e5b69136d19d5475db30d8dc036c36 Mon Sep 17 00:00:00 2001
From: Erystasius <Felix.E.Huang@gmail.com>
Date: Wed, 1 Apr 2026 23:06:47 +0800
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---
 run_onchange_install-packages.sh | 34 ++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 run_onchange_install-packages.sh

diff --git a/run_onchange_install-packages.sh b/run_onchange_install-packages.sh
new file mode 100644
index 0000000..bdb4cfd
--- /dev/null
+++ b/run_onchange_install-packages.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# 按存在的包管理器安装依赖包。
+# 说明：
+# - 不使用 chezmoi 的 .tmpl 模板语法；通过运行时检测 apt/pacman/dnf。
+# - 脚本尽量保持幂等（包已安装会自动跳过）。
+
+SUDO=""
+if [ "$(id -u)" -ne 0 ]; then
+  if command -v sudo >/dev/null 2>&1; then
+    SUDO="sudo"
+  else
+    echo "需要 sudo 权限才能安装包（当前非 root，且找不到 sudo）。" >&2
+    exit 1
+  fi
+fi
+
+if command -v pacman >/dev/null 2>&1; then
+  # Arch/Manjaro：先同步并升级系统，再安装所需包
+  $SUDO pacman -Syu --noconfirm
+  $SUDO pacman -S --noconfirm exa zoxide dust bat btop fd ripgrep fzf tldr
+elif command -v apt >/dev/null 2>&1; then
+  # Debian/Ubuntu：更新索引后再安装
+  $SUDO apt update -y || true
+  $SUDO apt install -y fzf zoxide ripgrep bat fd-find btop exa
+elif command -v dnf >/dev/null 2>&1; then
+  # Fedora：更新元数据后再安装
+  $SUDO dnf makecache -y || true
+  $SUDO dnf install -y exa zoxide dust bat btop fd-find ripgrep fzf tldr
+else
+  echo "未检测到 apt / pacman / dnf，跳过安装。" >&2
+fi
+