add git info in footer

src/components/Footer.astro

@@ -1,25 +1,35 @@
 ---
+import { execSync } from "child_process";
+import FormattedDate from "./FormattedDate.astro";
+
+const cmd = `git log -1 --pretty="%cn&&%cd&&%s&&%h" --date=iso`;
+const git_info = execSync(cmd).toString().trim().split("&&");
+const [ author, date, message, hash ] = git_info;
+
 const links = [
-  {name: "git", url: "https://github.com/skovati"},
-  {name: "mail", url: "mailto:[email protected]"},
-  {name: "pgp", url: "/pgp"}
+    { name: "git",  url: "https://github.com/skovati" },
+    { name: "mail", url: "mailto:[email protected]"    },
+    { name: "pgp",  url: "/pgp"                       }
 ]
 ---
 
 <hr>
 
 <p>
-  the content for this site is <a href="/LICENSE.txt"><b>CC-BY-NC-ND</b></a>
+    last modified: {`(${hash}) ${author} - ${message} - `}
+    <FormattedDate date={new Date(date)}>
+</p>
+
+<p>
+    the content for this site is <a href="/LICENSE.txt"><b>CC-BY-NC-ND</b></a>
 </p>
 
 <p>
-  the <a href="https://git.sr.ht/~skovati/website"><b>source code</b></a> is <a href="https://git.sr.ht/~skovati/website/tree/master/item/LICENSE"><b>MIT</b></a>
+    the <a href="https://git.sr.ht/~skovati/website"><b>source code</b></a> is <a href="https://git.sr.ht/~skovati/website/tree/master/item/LICENSE"><b>MIT</b></a>
 </p>
 
 <p>
-{
-  links.map(e =>
-    <a href={e.url}><b>{e.name} </b></a>
-  )
-}
+    {links.map(e =>
+        <a href={e.url}><b>{`${e.name} `}</b></a>
+    )}
 </p>