Move away from ESLint linting

.github/workflows/quality.yml

@@ -1,4 +1,4 @@
-name: ESLint
+name: Biome Code Quality
 
 on:
   # Trigger the workflow on push or pull request,
@@ -28,10 +28,14 @@ jobs:
       - name: Set up Node.js  # Step to set up Node.js environment
         uses: actions/setup-node@v4  # Use the setup-node action version 4
         with:
-          node-version: 20  # Specify Node.js version 20
+          node-version-file: '.nvmrc'
 
       - name: Install Node.js dependencies  # Step to install Node.js dependencies
         run: npm ci  # Use 'npm ci' to install dependencies
       
       - name: eslint  # Step to run linters
         run: npm run eslint-ci
+        
+
+      - name: biome-lint  # Step to run linters
+        run: npm run biome-ci

biome.jsonc

@@ -7,14 +7,11 @@
 		"defaultBranch": "beta"
 	},
 	"formatter": {
-	"enabled": false
+		"enabled": true,
+		"useEditorconfig": true
 	},
-  "files": { "ignoreUnknown": false, "ignore": [] },
+	"files": {
-  "organizeImports": { "enabled": false },
+		"ignoreUnknown": false,
-  "linter": { "enabled": true, "rules": { "recommended": false } },
-  "javascript": { "formatter": { "quoteStyle": "double" } },
-  "overrides": [
-    {
 		"ignore": [
 			"dist/*",
 			"build/*",
@@ -23,11 +20,13 @@
 			".github/*",
 			"node_modules/*",
 			".vscode/*"
-      ],
+		]
-      "include": ["src/**/*.{ts,tsx,js,jsx}", "test/**/*.{ts,tsx,js,jsx}"],
+	},
-      "javascript": { "globals": [] },
+	"organizeImports": { "enabled": false },
 	"linter": {
+		"enabled": true,
 		"rules": {
+			"recommended": true,
 			"correctness": {
 				"noUndeclaredVariables": "off",
 				"noUnusedVariables": "error"
@@ -36,13 +35,20 @@
 				"noVar": "error",
 				"useBlockStatements": "error",
 				"useConst": "error",
-            "useImportType": "error"
+				"useImportType": "error",
+				"useNamingConvention": "warn"
 			},
 			"suspicious": { "noDoubleEquals": "error" },
-		  "complexity": { "noExcessiveCognitiveComplexity": "warn"}
+			"complexity": {
+				"noExcessiveCognitiveComplexity": "warn",
+				"useSimplifiedLogicExpression": "warn"
 			}
 		}
 	},
+	"javascript": {
+		"formatter": { "quoteStyle": "double", "arrowParentheses": "asNeeded" }
+	},
+	"overrides": [
 		{
 			"include": ["test/**/*.test.ts"],
 			"javascript": { "globals": [] },

eslint.config.js

@@ -17,37 +17,10 @@ export default [
             '@typescript-eslint': tseslint
         },
         rules: {
-            "eqeqeq": ["error", "always"], // Enforces the use of `===` and `!==` instead of `==` and `!=`
-            "indent": ["error", 2, { "SwitchCase": 1 }], // Enforces a 2-space indentation, enforces indentation of `case ...:` statements
-            "quotes": ["error", "double"], // Enforces the use of double quotes for strings
-            "no-var": "error", // Disallows the use of `var`, enforcing `let` or `const` instead
             "prefer-const": "error", // Enforces the use of `const` for variables that are never reassigned
             "no-undef": "off", // Disables the rule that disallows the use of undeclared variables (TypeScript handles this)
-            "@typescript-eslint/no-unused-vars": [ "error", {
-                "args": "none", // Allows unused function parameters. Useful for functions with specific signatures where not all parameters are always used.
-                "ignoreRestSiblings": true // Allows unused variables that are part of a rest property in object destructuring. Useful for excluding certain properties from an object while using the others.
-            }],
-            "eol-last": ["error", "always"], // Enforces at least one newline at the end of files
-            "@stylistic/ts/semi": ["error", "always"], // Requires semicolons for TypeScript-specific syntax
-            "semi": "off", // Disables the general semi rule for TypeScript files
             "no-extra-semi": ["error"], // Disallows unnecessary semicolons for TypeScript-specific syntax
-            "brace-style": "off", // Note: you must disable the base rule as it can report incorrect errors
-            "curly": ["error", "all"], // Enforces the use of curly braces for all control statements
-            "@stylistic/ts/brace-style": ["error", "1tbs"], // Enforces the following brace style: https://eslint.style/rules/js/brace-style#_1tbs
-            "no-trailing-spaces": ["error", { // Disallows trailing whitespace at the end of lines
-                "skipBlankLines": false, // Enforces the rule even on blank lines
-                "ignoreComments": false // Enforces the rule on lines containing comments
-            }],
-            "space-before-blocks": ["error", "always"], // Enforces a space before blocks
-            "keyword-spacing": ["error", { "before": true, "after": true }], // Enforces spacing before and after keywords
-            "comma-spacing": ["error", { "before": false, "after": true }], // Enforces spacing after commas
             "import-x/extensions": ["error", "never", { "json": "always" }], // Enforces no extension for imports unless json
-            "array-bracket-spacing": ["error", "always", { "objectsInArrays": false, "arraysInArrays": false }], // Enforces consistent spacing inside array brackets
-            "object-curly-spacing": ["error", "always", { "arraysInObjects": false, "objectsInObjects": false }], // Enforces consistent spacing inside braces of object literals, destructuring assignments, and import/export specifiers
-            "computed-property-spacing": ["error", "never" ], // Enforces consistent spacing inside computed property brackets
-            "space-infix-ops": ["error", { "int32Hint": false }], // Enforces spacing around infix operators
-            "no-multiple-empty-lines": ["error", { "max": 2, "maxEOF": 1, "maxBOF": 0 }], // Disallows multiple empty lines
-            "@typescript-eslint/consistent-type-imports": "error", // Enforces type-only imports wherever possible
         }
     },
     {

package.json

@@ -16,6 +16,8 @@
 		"typecheck": "tsc --noEmit",
 		"eslint": "eslint --fix .",
 		"eslint-ci": "eslint .",
+		"biome": "biome check --write",
+		"biome-ci": "biome ci --changed",
 		"docs": "typedoc",
 		"depcruise": "depcruise src",
 		"depcruise:graph": "depcruise src --output-type dot | node dependency-graph.js > dependency-graph.svg",