add dot linting dot files for workflows

.editorconfig

@@ -0,0 +1,13 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = crlf
+insert_final_newline = false
+indent_style = space
+indent_size = 2
+tab_width = 2
+trim_trailing_whitespace = true
+
+[*.md]
+trim_trailing_whitespace = false

.eslintignore

@@ -0,0 +1 @@
+node_modules/

.eslintrc.yaml

@@ -0,0 +1,246 @@
+root: true
+
+env:
+  es6: true
+  browser: true
+
+extends:
+  - eslint:recommended
+
+parserOptions:
+  ecmaVersion": latest
+  sourceType: module
+
+rules:
+  array-bracket-newline:
+    - error
+    - consistent
+
+  array-bracket-spacing:
+    - error
+    - never
+
+  array-callback-return: error
+  arrow-parens:
+    - error
+    - always
+
+  arrow-spacing:
+    - error
+    - before: true
+      after: true
+
+  block-scoped-var: error
+  block-spacing: error
+  brace-style:
+    - error
+    - stroustrup
+
+  comma-dangle:
+    - error
+    - arrays: never
+      objects: never
+      imports: never
+      exports: never
+      functions: never
+
+  comma-spacing:
+    - error
+    - before: false
+      after: true
+
+  comma-style:
+    - error
+    - last
+
+  computed-property-spacing: error
+  curly:
+    - error
+    - all
+
+  dot-location:
+    - error
+    - property
+
+  eol-last:
+    - error
+    - never
+
+  eqeqeq: error
+  func-call-spacing: error
+  func-name-matching: error
+  func-style:
+    - error
+    - declaration
+    - allowArrowFunctions: true
+
+  indent:
+    - error
+    - 2
+
+  key-spacing:
+    - error
+    - beforeColon: false
+      afterColon: true
+
+  keyword-spacing:
+    - error
+    - before: true
+      after: true
+
+  linebreak-style:
+    - error
+    - unix
+
+  lines-between-class-members: error
+  max-nested-callbacks: error
+  max-statements-per-line: error
+  new-parens: error
+  no-array-constructor: error
+  no-await-in-loop: error
+  no-caller: error
+  no-constant-condition:
+    - error
+    - checkLoops: false
+
+  no-div-regex: error
+  no-empty: error
+  no-extra-bind: error
+  no-extra-parens:
+    - error
+    - all
+    - conditionalAssign: false
+      nestedBinaryExpressions: false
+      returnAssign: false
+
+  no-implicit-coercion:
+    - error
+    - allow:
+      - '!!'
+
+  no-invalid-this: error
+  no-iterator: error
+  no-label-var: error
+  no-lonely-if: error
+  no-loop-func: error
+  no-new-object: error
+  no-new-wrappers: error
+  no-octal-escape: error
+  no-proto: error
+  no-prototype-builtins: 'off'
+  no-restricted-properties:
+    - error
+    - object: Lang
+      property: copyProperties
+      message: Use Object.assign()
+    - object: Lang
+      property: bind
+      message: Use arrow notation or Function.prototype.bind()
+    - object: Lang
+      property: Class
+      message: Use ES6 classes
+
+  no-return-assign: error
+  no-return-await: error
+  no-self-compare: error
+  no-shadow: error
+  no-shadow-restricted-names: error
+  no-template-curly-in-string: error
+  no-throw-literal: error
+  no-trailing-spaces: error
+  no-undef-init: error
+  no-unneeded-ternary: error
+  no-unused-expressions: error
+  no-unused-vars: off
+  no-useless-call: error
+  no-useless-computed-key: error
+  no-useless-concat: error
+  no-useless-constructor: error
+  no-useless-rename: error
+  no-useless-return: error
+  no-whitespace-before-property: error
+  no-with: error
+  nonblock-statement-body-position:
+    - error
+    - below
+
+  object-curly-newline:
+    - error
+    - consistent: true
+
+  object-curly-spacing:
+    - error
+    - always
+
+  object-shorthand: error
+  operator-assignment: error
+  operator-linebreak: error
+  padded-blocks:
+    - error
+    - never
+
+  prefer-const: error
+  prefer-numeric-literals: error
+  prefer-promise-reject-errors: error
+  prefer-rest-params: error
+  prefer-spread: error
+  prefer-template: error
+  quotes:
+    - error
+    - single
+
+  require-await: error
+  rest-spread-spacing:
+    - error
+    - never
+
+  semi:
+    - error
+    - never
+
+  semi-spacing:
+    - error
+    - before: false
+      after: true
+
+  semi-style: error
+  space-before-blocks: error
+  space-before-function-paren:
+    - error
+    - named: never
+      anonymous: always
+      asyncArrow: always
+
+  space-in-parens: error
+  space-infix-ops:
+    - error
+    - int32Hint: false
+
+  space-unary-ops: error
+  spaced-comment: error
+  switch-colon-spacing: error
+  symbol-description: error
+  template-curly-spacing: error
+  template-tag-spacing: error
+  unicode-bom: error
+  wrap-iife:
+    - error
+    - inside
+
+  yield-star-spacing: error
+  yoda: error
+  no-duplicate-imports: error
+  no-use-before-define:
+    - error
+    - functions: false
+
+  no-unused-private-class-members: error
+  no-unmodified-loop-condition: error
+  no-promise-executor-return: error
+  require-atomic-updates: error
+  arrow-body-style:
+    - error
+    - as-needed
+
+  consistent-return: error
+  default-case-last: error

.htmlhintrc

@@ -0,0 +1,26 @@
+{
+  "alt-require": false,
+  "attr-lowercase": ["viewBox"],
+  "attr-no-duplication": true,
+  "attr-unsafe-chars": true,
+  "attr-value-double-quotes": true,
+  "attr-value-not-empty": false,
+  "doctype-first": true,
+  "doctype-html5": true,
+  "empty-tag-not-self-closed": true,
+  "head-script-disabled": false,
+  "href-abs-or-rel": false,
+  "id-class-ad-disabled": false,
+  "id-class-value": false,
+  "id-unique": true,
+  "inline-script-disabled": false,
+  "inline-style-disabled": false,
+  "space-tab-mixed-disabled": "space",
+  "spec-char-escape": false,
+  "src-not-empty": true,
+  "style-disabled": false,
+  "tag-pair": true,
+  "tag-self-close": false,
+  "tagname-lowercase": true,
+  "title-require": true
+}

.prettierignore

@@ -0,0 +1,8 @@
+# Ignore external copied files
+dist/
+
+# Ignore HTML formatting as the diffs are not great
+tailwind.config.js
+
+# Ignore third party JavaScript
+node_modules/

.stylelintignore

@@ -0,0 +1 @@
+dist/

.stylelintrc.json

@@ -0,0 +1,15 @@
+{
+  "extends": "stylelint-config-standard",
+  "rules": {
+    "rule-empty-line-before": [
+			"always-multi-line",
+			{
+				"except": ["after-single-line-comment", "first-nested"]
+			}
+		],
+    "at-rule-no-unknown": null,
+    "block-no-empty": true,
+    "color-named": "never",
+    "color-no-hex": true
+  }
+}

package.json

@@ -4,15 +4,27 @@
   "browserslist": "> 0.5%, last 2 versions, not dead",
   "scripts": {
     "start": "parcel",
-    "build": "parcel build"
+    "build": "parcel build",
+    "htmlhint": "htmlhint \"**/*.html\" --ignore \"dist/**/*.html\" --format unix",
+    "lint:js": "pnpm exec eslint \"src/**/*.js\" --no-error-on-unmatched-pattern",
+    "lint:html": "pnpm run htmlhint",
+    "lint:css": "pnpm exec stylelint \"src/**/*.css\"",
+    "lint": "pnpm run lint:js && pnpm run lint:css && pnpm run lint:html"
+  },
+  "staticFiles": {
+    "staticPath": "static"
   },
   "dependencies": {
     "parcel": "^2.11.0"
   },
   "devDependencies": {
     "@parcel/config-default": "^2.11.0",
     "@parcel/transformer-raw": "^2.11.0",
+    "eslint": "^8.56.0",
+    "htmlhint": "^1.1.4",
     "postcss": "^8.4.33",
+    "stylelint": "^16.2.0",
+    "stylelint-config-standard": "^36.0.0",
     "tailwindcss": "^3.4.1"
   }
 }