update footer to include hash

.woodpecker.yml

@@ -1,6 +1,6 @@
 steps:
   build:
-    image: git.mzhang.io/michael/blog-docker-builder:l3kh5sx46zqszsbr1ghvvdyp0zl8gl9m
+    image: git.mzhang.io/michael/blog-docker-builder:j2ysg2m75s15il5wddnjbz3j36yy5fsa
     environment:
       - ASTRO_TELEMETRY_DISABLED=1
     commands:
@@ -13,9 +13,10 @@ steps:
       - event: push
 
   deploy:
-    image: git.mzhang.io/michael/blog-docker-builder:l3kh5sx46zqszsbr1ghvvdyp0zl8gl9m
+    image: git.mzhang.io/michael/blog-docker-builder:j2ysg2m75s15il5wddnjbz3j36yy5fsa
     commands:
-      - aws s3 sync ./dist/ s3://mzhang-io-website/
+      - mc alias set $AWS_DEFAULT_REGION $AWS_ENDPOINT_URL $AWS_ACCESS_KEY_ID $AWS_SECRET_ACCESS_KEY --api S3v4
+      - mc mirror --overwrite ./dist/ $AWS_DEFAULT_REGION/mzhang-io-website/
     secrets:
       - AWS_ACCESS_KEY_ID
       - AWS_DEFAULT_REGION

src/components/Footer.astro

@@ -1,7 +1,10 @@
 ---
 import "../styles/footer.scss";
+import { execSync } from "node:child_process";
 
 const dateUpdated = new Date();
+const gitRevShort = execSync("git rev-parse --short HEAD").toString().trim();
+const gitRev = execSync("git rev-parse HEAD").toString().trim();
 ---
 
 <footer>
@@ -12,8 +15,13 @@ const dateUpdated = new Date();
       rel="noreferrer noopener">Astro</a
     > framework.
     <br />
-    Last updated {dateUpdated.toLocaleString(undefined, { dateStyle: "full" })}.
+    Last updated {dateUpdated.toLocaleString(undefined, { dateStyle: "full" })} at commit
+    <a
+      href={`https://git.mzhang.io/michael/blog/commit/${gitRev}`}
+      class="colorlink"
+      target="_blank">{gitRevShort}</a
+    >.
     <br />
-    <a href="https://git.mzhang.io/michael/blog" class="colorlink" target="_blank">Source code</a>
+    <a href="https://git.mzhang.io/michael/blog" class="colorlink" target="_blank">Source code</a>.
   </p>
 </footer>