add html-minifier

.eleventy.js

@@ -1,4 +1,18 @@
+const htmlmin = require("html-minifier");
+
 module.exports = function(eleventyConfig) {
+    eleventyConfig.addTransform("htmlmin", function(content, outputPath) {
+      if (outputPath.endsWith(".html")) {
+        let minified = htmlmin.minify(content, {
+          useShortDocType: true,
+          removeComments: true,
+          collapseWhitespace: true,
+        })
+
+        return minified;
+      }
+    })
+
     return {
         dir: {
           input: 'src',

package-lock.json

@@ -9,7 +9,8 @@
       "version": "1.0.0",
       "license": "ISC",
       "devDependencies": {
-        "@11ty/eleventy": "^2.0.1"
+        "@11ty/eleventy": "^2.0.1",
+        "html-minifier": "^4.0.0"
       }
     },
     "node_modules/@11ty/dependency-tree": {
@@ -480,6 +481,16 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/camel-case": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/camel-case/-/camel-case-3.0.0.tgz",
+      "integrity": "sha512-+MbKztAYHXPr1jNTSKQF52VpcFjwY5RkR7fxksV8Doo4KAYc5Fl4UJRgthBbTmEx8C54DqahhbLJkDwjI3PI/w==",
+      "dev": true,
+      "dependencies": {
+        "no-case": "^2.2.0",
+        "upper-case": "^1.1.1"
+      }
+    },
     "node_modules/chalk": {
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
@@ -532,6 +543,18 @@
         "fsevents": "~2.3.2"
       }
     },
+    "node_modules/clean-css": {
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/clean-css/-/clean-css-4.2.4.tgz",
+      "integrity": "sha512-EJUDT7nDVFDvaQgAo2G/PJvxmp1o/c6iXLbswsBbUFXi1Nr+AjA2cKmfbKDMjMvzEe75g3P6JkaDDAKk96A85A==",
+      "dev": true,
+      "dependencies": {
+        "source-map": "~0.6.0"
+      },
+      "engines": {
+        "node": ">= 4.0"
+      }
+    },
     "node_modules/color-convert": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
@@ -1075,6 +1098,42 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/he": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
+      "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==",
+      "dev": true,
+      "bin": {
+        "he": "bin/he"
+      }
+    },
+    "node_modules/html-minifier": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/html-minifier/-/html-minifier-4.0.0.tgz",
+      "integrity": "sha512-aoGxanpFPLg7MkIl/DDFYtb0iWz7jMFGqFhvEDZga6/4QTjneiD8I/NXL1x5aaoCp7FSIT6h/OhykDdPsbtMig==",
+      "dev": true,
+      "dependencies": {
+        "camel-case": "^3.0.0",
+        "clean-css": "^4.2.1",
+        "commander": "^2.19.0",
+        "he": "^1.2.0",
+        "param-case": "^2.1.1",
+        "relateurl": "^0.2.7",
+        "uglify-js": "^3.5.1"
+      },
+      "bin": {
+        "html-minifier": "cli.js"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
+    "node_modules/html-minifier/node_modules/commander": {
+      "version": "2.20.3",
+      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+      "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
+      "dev": true
+    },
     "node_modules/htmlparser2": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/htmlparser2/-/htmlparser2-7.2.0.tgz",
@@ -1384,6 +1443,12 @@
       "integrity": "sha512-m/M1U1f3ddMCs6Hq2tAsYThTBDaAKFDX3dwDo97GEYzamXi9SqUpjWi/Rrj/gf3X2n8ktwgZrlP1z6E3v/IExQ==",
       "dev": true
     },
+    "node_modules/lower-case": {
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/lower-case/-/lower-case-1.1.4.tgz",
+      "integrity": "sha512-2Fgx1Ycm599x+WGpIYwJOvsjmXFzTSc34IwDWALRA/8AopUKAVPwfJ+h5+f85BCp0PWmmJcWzEpxOpoXycMpdA==",
+      "dev": true
+    },
     "node_modules/lru-cache": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-6.0.0.tgz",
@@ -1609,6 +1674,15 @@
       "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==",
       "dev": true
     },
+    "node_modules/no-case": {
+      "version": "2.3.2",
+      "resolved": "https://registry.npmjs.org/no-case/-/no-case-2.3.2.tgz",
+      "integrity": "sha512-rmTZ9kz+f3rCvK2TD1Ue/oZlns7OGoIWP4fc3llxxRXlOkHKoWPPWJOfFYpITabSow43QJbRIoHQXtt10VldyQ==",
+      "dev": true,
+      "dependencies": {
+        "lower-case": "^1.1.1"
+      }
+    },
     "node_modules/normalize-path": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@@ -1682,6 +1756,15 @@
         "wrappy": "1"
       }
     },
+    "node_modules/param-case": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/param-case/-/param-case-2.1.1.tgz",
+      "integrity": "sha512-eQE845L6ot89sk2N8liD8HAuH4ca6Vvr7VWAWwt7+kvvG5aBcPmmphQ68JsEG2qa9n1TykS2DLeMt363AAH8/w==",
+      "dev": true,
+      "dependencies": {
+        "no-case": "^2.2.0"
+      }
+    },
     "node_modules/parse-srcset": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/parse-srcset/-/parse-srcset-1.0.2.tgz",
@@ -2006,6 +2089,15 @@
         "slash": "^1.0.0"
       }
     },
+    "node_modules/relateurl": {
+      "version": "0.2.7",
+      "resolved": "https://registry.npmjs.org/relateurl/-/relateurl-0.2.7.tgz",
+      "integrity": "sha512-G08Dxvm4iDN3MLM0EsP62EDV9IuhXPR6blNz6Utcp7zyV3tr4HVNINt6MpaRWbxoOHT3Q7YN2P+jaHX8vUbgog==",
+      "dev": true,
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/resolve": {
       "version": "1.22.4",
       "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.4.tgz",
@@ -2248,7 +2340,6 @@
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.17.4.tgz",
       "integrity": "sha512-T9q82TJI9e/C1TAxYvfb16xO120tMVFZrGA3f9/P4424DNu6ypK103y0GPFVa17yotwSyZW5iYXgjYHkGrJW/g==",
       "dev": true,
-      "optional": true,
       "bin": {
         "uglifyjs": "bin/uglifyjs"
       },
@@ -2265,6 +2356,12 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/upper-case": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/upper-case/-/upper-case-1.1.3.tgz",
+      "integrity": "sha512-WRbjgmYzgXkCV7zNVpy5YgrHgbBv126rMALQQMrmzOVC4GM2waQ9x7xtm8VU+1yF2kWyPzI9zbZ48n4vSxwfSA==",
+      "dev": true
+    },
     "node_modules/void-elements": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",

package.json

@@ -11,6 +11,7 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "@11ty/eleventy": "^2.0.1"
+    "@11ty/eleventy": "^2.0.1",
+    "html-minifier": "^4.0.0"
   }
 }