feat: add lightness-notation rule

Author: pengzhanbo

package.json

@@ -65,7 +65,6 @@
     "conventional-changelog-cli": "^4.1.0",
     "eslint": "^8.56.0",
     "stylelint": "^16.2.1",
-    "stylelint-define-config": "file:.",
     "tsup": "^8.0.2",
     "typescript": "^5.3.3"
   }

src/rules/stylelint/index.d.ts

@@ -123,6 +123,7 @@ import type { UnitDisallowedListOptions } from './unit-disallowed-list'
 import type { UnitNoUnknownOptions } from './unit-no-unknown'
 import type { ValueKeywordCaseOptions } from './value-keyword-case'
 import type { ValueNoVendorPrefixOptions } from './value-no-vendor-prefix'
+import type { LightnessNotationOptions } from './lightness-notation'
 
 /**
  * Rules determine what the linter looks for and complains about.
@@ -1386,6 +1387,28 @@ export interface StyleLintRules {
    */
   'length-zero-no-unit': LengthZeroNoUnitOptions
 
+  /**
+   * Specify number or percentage notation for lightness.
+   *
+   * ```scss
+   *   a { color: oklch(85% 0.17 88) }
+   * //                 ^^^
+   * //                 This notation
+   * ```
+   *
+   * This rule supports `oklch`, `oklab`, `lch` and `lab` functions.
+   *
+   * ### Primary Options
+   *
+   * string: `"percentage"|"number"`
+   *
+   * - `"percentage"`: Lightness must always use the percentage notation.
+   * - `"number"`: Lightness must always use the number notation.
+   *
+   * @see [lightness-notation](https://stylelint.io/user-guide/rules/lightness-notation)
+   */
+  'lightness-notation': LightnessNotationOptions
+
   /**
    * Limit the depth of nesting.
    *

src/rules/stylelint/lightness-notation.ts

@@ -0,0 +1,8 @@
+import type { RuleConfig } from '../rule-config'
+
+export type LightnessNotationOptions = RuleConfig<
+  'percentage' | 'number',
+  {
+    message?: string | ((unfixed: string, fixed: string) => string)
+  }
+>