统一 Paper 风格的站点标题与提交信息

astro.config.mjs

@@ -2,14 +2,21 @@ import { defineConfig } from "astro/config";
 import tailwindcss from "@tailwindcss/vite";
 import sitemap from "@astrojs/sitemap";
 import svelte from "@astrojs/svelte";
+import { execSync } from "node:child_process";
 
 const site = process.env.SITE_URL;
+const commitHash =
+  (process.env.CF_PAGES_COMMIT_SHA || process.env.GITHUB_SHA || process.env.GIT_COMMIT_HASH || "").trim().slice(0, 7) ||
+  execSync("git rev-parse --short HEAD").toString().trim();
 
 export default defineConfig({
   site,
   output: "static",
   vite: {
     plugins: [tailwindcss()],
+    define: {
+      "import.meta.env.GIT_COMMIT_HASH": JSON.stringify(commitHash),
+    },
   },
   integrations: [svelte(), ...(site ? [sitemap()] : [])],
 });