ad headers file for deployment

.eleventyignore

@@ -0,0 +1,2 @@
+README.md
+resources/

_headers.txt

@@ -0,0 +1,5 @@
+/css/*
+  Cache-Control: public, max-age=14400
+
+/img/*
+  Cache-Control: public, max-age=604800

package.json

@@ -4,7 +4,7 @@
   "description": "",
   "scripts": {
     "build": "eleventy",
-    "postbuild": "postcss _site/css/*.css -u autoprefixer cssnano -r --no-map",
+    "postbuild": "postcss _site/css/*.css -u autoprefixer cssnano -r --no-map && node resources/tooling/copy-files.js",
     "watch": "eleventy --watch",
     "serve": "eleventy --serve",
     "start": "eleventy --serve",

resources/tooling/copy-files.js

@@ -0,0 +1,31 @@
+const fs = require('fs');
+const path = require('path');
+
+const files = [
+  {
+    src: path.join(
+      __dirname,
+      '..',
+      '..',
+      '_headers.txt'
+    ),
+    dest: path.join(
+      __dirname,
+      '..',
+      '..',
+      '_site',
+      '_headers'
+    ),
+  },
+];
+
+files.forEach((file) => {
+  let src = file.src;
+  let dest = file.dest;
+  if (fs.existsSync(src)) {
+    fs.copyFile(src, dest, function (err) {
+      if (err) throw err;
+      console.log(src, 'was copied to', dest);
+    });
+  }
+});