test minify middleware

Dockerfile

@@ -8,6 +8,10 @@ RUN npm i
 
 COPY public public
 
+RUN npm i -g terser 
+RUN terser --compress -o public/js/app.js --  public/js/app.js
+RUN npm remove terser
+
 COPY views views
 
 COPY tailwind tailwind

init.mjs

@@ -1,48 +1,68 @@
-
 import nunjucks from "nunjucks";
 import markdown from "nunjucks-markdown";
 import { marked } from "marked";
+import { minify } from "html-minifier";
 
-export function configureNunjucks(app) {
-    const nunjucksEnv = nunjucks.configure("views", {
-      autoescape: true,
-      express: app,
-    });
-
-    nunjucksEnv.addFilter("json", function (value, spaces) {
-      if (value instanceof nunjucks.runtime.SafeString) {
-        value = value.toString();
-      }
-      const jsonString = JSON.stringify(value, null, spaces).replace(
-        /</g,
-        "\\u003c"
-      );
-      return nunjucks.runtime.markSafe(jsonString);
-    });
-    nunjucksEnv.addFilter("slug", function (value, spaces) {
-      const slugify = (input) => {
-        return input
-          .toString()
-          .toLowerCase()
-          .replace(/\s+/g, "-") // Replace spaces with -
-          .replace(/[^\w\-]+/g, "") // Remove all non-word chars
-          .replace(/\-\-+/g, "-") // Replace multiple - with single -
-          .replace(/^-+/, "") // Trim - from start of text
-          .replace(/-+$/, ""); // Trim - from end of text
-      };
-      if (value instanceof nunjucks.runtime.SafeString) {
-        value = value.toString();
-      }
-      const slug = slugify(value);
-      return nunjucks.runtime.markSafe(slug);
-    });
-
-    nunjucksEnv.addFilter("date", function (value, spaces) {
-      if (value instanceof nunjucks.runtime.SafeString) {
-        value = value.toString();
-      }
-      const dateValue = new Date(value);
-      return nunjucks.runtime.markSafe(dateValue.toLocaleDateString("fr"));
+function minifyMiddleware(req, res, next) {
+  res.oldRender = res.render;
+  res.render = function(view, options) {
+    this.oldRender(view, options, function(err, html) {
+      if (err) throw err;
+      html = minify(html, {
+        removeComments: true,
+        removeCommentsFromCDATA: true,
+        collapseWhitespace: true,
+        collapseBooleanAttributes: true,
+        removeAttributeQuotes: true,
+        removeEmptyAttributes: true,
+      });
+      res.send(html);
     });
-    markdown.register(nunjucksEnv, marked);
-}
+  };
+  next();
+}
+
+export function configureNunjucks(app) {
+  const nunjucksEnv = nunjucks.configure("views", {
+    autoescape: true,
+    express: app,
+  });
+
+  nunjucksEnv.addFilter("json", function(value, spaces) {
+    if (value instanceof nunjucks.runtime.SafeString) {
+      value = value.toString();
+    }
+    const jsonString = JSON.stringify(value, null, spaces).replace(
+      /</g,
+      "\\u003c",
+    );
+    return nunjucks.runtime.markSafe(jsonString);
+  });
+  nunjucksEnv.addFilter("slug", function(value, spaces) {
+    const slugify = (input) => {
+      return input
+        .toString()
+        .toLowerCase()
+        .replace(/\s+/g, "-") // Replace spaces with -
+        .replace(/[^\w\-]+/g, "") // Remove all non-word chars
+        .replace(/\-\-+/g, "-") // Replace multiple - with single -
+        .replace(/^-+/, "") // Trim - from start of text
+        .replace(/-+$/, ""); // Trim - from end of text
+    };
+    if (value instanceof nunjucks.runtime.SafeString) {
+      value = value.toString();
+    }
+    const slug = slugify(value);
+    return nunjucks.runtime.markSafe(slug);
+  });
+
+  nunjucksEnv.addFilter("date", function(value, spaces) {
+    if (value instanceof nunjucks.runtime.SafeString) {
+      value = value.toString();
+    }
+    const dateValue = new Date(value);
+    return nunjucks.runtime.markSafe(dateValue.toLocaleDateString("fr"));
+  });
+  markdown.register(nunjucksEnv, marked);
+  app.use(minifyMiddleware);
+}