From 10278b55fbffeadf8237a1221d8c286585aca1a1 Mon Sep 17 00:00:00 2001
From: klarkxy <278370456@qq.com>
Date: Fri, 13 Mar 2026 15:16:29 +0800
Subject: [PATCH] feat: add automatic git pull on homepage visit with rate
 limiting

Introduce a mechanism to automatically pull the latest changes from the git repository when the homepage is accessed. This ensures the application stays up-to-date without manual intervention. The feature includes a lock file (`/tmp/hustoj_git_pull.lock`) to prevent excessive pulls, limiting execution to at most once every 60 seconds. The git pull command runs in the background to avoid blocking the page load, with output logged to `/tmp/hustoj_git_pull.log`.
---
 web/index.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/web/index.php b/web/index.php
index 91a426f..a1f5ccf 100644
--- a/web/index.php
+++ b/web/index.php
@@ -2,6 +2,15 @@
 ////////////////////////////Common head
 $cache_time = 30;
 $OJ_CACHE_SHARE = false;
+
+// Auto git pull on homepage visit (at most once per 60 seconds)
+$git_pull_lock = '/tmp/hustoj_git_pull.lock';
+if (!file_exists($git_pull_lock) || (time() - filemtime($git_pull_lock)) > 60) {
+    touch($git_pull_lock);
+    $repo_dir = dirname(__DIR__);
+    exec("cd " . escapeshellarg($repo_dir) . " && git pull > /tmp/hustoj_git_pull.log 2>&1 &");
+}
+
 require_once( './include/cache_start.php' );
 require_once( './include/db_info.inc.php' );
 require_once( './include/memcache.php' );