js: Migrate to ESLint 9

Signed-off-by: Matt Strapp <matt@mattstrapp.net>

14 files changed, 164 insertions, 156 deletions

diff --git a/src/packages/eslint-config/eslint.library.config.js b/src/packages/eslint-config/eslint.library.config.js
new file mode 100644
index 0000000..e3c7866
--- /dev/null
+++ b/src/packages/eslint-config/eslint.library.config.js
@@ -0,0 +1,39 @@
+// @ts-check
+
+import globals from "globals";
+import eslint from "@eslint/js";
+import ts from "typescript-eslint";
+import prettier from "eslint-config-prettier";
+import turboPlugin from "eslint-plugin-turbo";
+
+import { resolve } from "node:path";
+
+const project = resolve(process.cwd(), "tsconfig.json");
+
+export default ts.config(
+  eslint.configs.recommended,
+  ...ts.configs.recommended,
+  prettier,
+  {
+    name: "eslint-config-turbo (recreated flat)",
+    plugins: {
+      turbo: { rules: turboPlugin.rules },
+    },
+    rules: {
+      "turbo/no-undeclared-env-vars": "error",
+    },
+  },
+  {
+    name: "library",
+    languageOptions: {
+      // parserOptions: {
+      //   project: resolve(process.cwd(), "tsconfig.json")
+      // },
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+      },
+    },
+    ignores: ["build/", ".svelte-kit/", "dist/"],
+  },
+);
diff --git a/src/packages/eslint-config/library.js b/src/packages/eslint-config/library.js
deleted file mode 100644
index 9b59cc0..0000000
--- a/src/packages/eslint-config/library.js
+++ /dev/null
@@ -1,34 +0,0 @@
-const { resolve } = require("node:path");
-
-const project = resolve(process.cwd(), "tsconfig.json");
-
-/** @type {import("eslint").Linter.Config} */
-module.exports = {
-  extends: ["eslint:recommended", "prettier", "turbo"],
-  plugins: ["only-warn"],
-  globals: {
-    React: true,
-    JSX: true,
-  },
-  env: {
-    node: true,
-  },
-  settings: {
-    "import/resolver": {
-      typescript: {
-        project,
-      },
-    },
-  },
-  ignorePatterns: [
-    // Ignore dotfiles
-    ".*.js",
-    "node_modules/",
-    "dist/",
-  ],
-  overrides: [
-    {
-      files: ["*.js?(x)", "*.ts?(x)"],
-    },
-  ],
-};
diff --git a/src/packages/eslint-config/package.json b/src/packages/eslint-config/package.json
index ba005cf..a05970f 100644
--- a/src/packages/eslint-config/package.json
+++ b/src/packages/eslint-config/package.json
@@ -3,15 +3,19 @@
   "version": "0.0.0",
   "devDependencies": {
     "@typescript-eslint/eslint-plugin": "8.12.2",
-    "@typescript-eslint/parser": "8.12.2",
     "@vercel/style-guide": "6.0.0",
+    "@types/eslint": "^9.6.0",
+    "eslint": "^9.7.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-config-turbo": "^2.2.3",
     "eslint-plugin-only-warn": "^1.1.0",
-    "typescript": "^5.6.3"
+    "globals": "^15.0.0",
+    "typescript": "^5.6.3",
+    "typescript-eslint": "^8.0.0"
   },
   "files": [
-    "library.js"
+    "library.mjs"
   ],
+  "type": "module",
   "private": true
 }
diff --git a/src/packages/locusts/.eslintrc.js b/src/packages/locusts/.eslintrc.js
deleted file mode 100644
index 1de713c..0000000
--- a/src/packages/locusts/.eslintrc.js
+++ /dev/null
@@ -1,9 +0,0 @@
-/** @type {import("eslint").Linter.Config} */
-module.exports = {
-  root: true,
-  extends: ["@repo/eslint-config/library.js"],
-  parser: "@typescript-eslint/parser",
-  parserOptions: {
-    project: true,
-  },
-};
\ No newline at end of file
diff --git a/src/packages/locusts/.prettierignore b/src/packages/locusts/.prettierignore
new file mode 100644
index 0000000..a0cc08c
--- /dev/null
+++ b/src/packages/locusts/.prettierignore
@@ -0,0 +1,2 @@
+mod.ts
+mod_test.ts
\ No newline at end of file
diff --git a/src/packages/locusts/README.md b/src/packages/locusts/README.md
index 6bcd1b6..0b95dcd 100644
--- a/src/packages/locusts/README.md
+++ b/src/packages/locusts/README.md
@@ -8,8 +8,8 @@
 
 ## Description
 
-Locusts is a series of libraries that allows you to introduce locusts into your codebase.
-Why would you want to do that? I don't know.
+Locusts is a series of libraries that allows you to introduce locusts into your
+codebase. Why would you want to do that? I don't know.
 
 ## Installation
 
diff --git a/src/packages/locusts/deno.json b/src/packages/locusts/deno.json
index 2e0e371..8a0b4c8 100644
--- a/src/packages/locusts/deno.json
+++ b/src/packages/locusts/deno.json
@@ -8,7 +8,12 @@
   "license": "MIT",
   "imports": {
     "@std/testing": "jsr:@std/testing@1",
-    "@std/expect": "jsr:@std/expect@1",
-    "locusts": "npm:locusts"
+    "@std/expect": "jsr:@std/expect@1"
+  },
+  "lint": {
+    "include": ["mod.ts", "mod_test.ts"]
+  },
+  "fmt": {
+    "include": ["mod.ts", "mod_test.ts"]
   }
 }
diff --git a/src/packages/locusts/eslint.config.mjs b/src/packages/locusts/eslint.config.mjs
new file mode 100644
index 0000000..1946c04
--- /dev/null
+++ b/src/packages/locusts/eslint.config.mjs
@@ -0,0 +1,5 @@
+// import ts from 'typescript-eslint';
+import library from "@repo/eslint-config/eslint.library.config.js";
+
+/** @type {import("eslint").Linter.Config[]} */
+export default [...library];
diff --git a/src/packages/locusts/package.json b/src/packages/locusts/package.json
index 5fb6a7f..93bce80 100644
--- a/src/packages/locusts/package.json
+++ b/src/packages/locusts/package.json
@@ -5,14 +5,25 @@
   "author": "Matt Strapp <matt+locusts@mattstrapp.net> (https://mattstrapp.net)",
   "bugs": "https://github.com/locusts-r-us/locusts/issues",
   "devDependencies": {
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.13.0",
     "@repo/eslint-config": "workspace:*",
     "@repo/typescript-config": "workspace:*",
     "@types/node": "^22.8.4",
+    "globals": "^15.0.0",
+    "prettier": "^3.3.2",
+    "publint": "^0.2.0",
     "tsup": "^8.3.5",
     "tsx": "^4.19.2",
     "typescript": "^5.6.3"
   },
-  "keywords": ["why", "joke"],
+  "keywords": [
+    "why",
+    "joke"
+  ],
+  "files": [
+    "dist"
+  ],
   "license": "0BSD",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
@@ -22,10 +33,10 @@
     "directory": "packages/locusts"
   },
   "scripts": {
-    "build": "tsup src/index.ts --format cjs,esm --dts",
+    "build": "tsup src/index.ts --format cjs,esm --dts && publint",
     "dev": "tsup src/index.ts --format cjs,esm --dts --watch",
-    "lint": "eslint src --fix",
-    "lint:ci": "eslint src",
+    "lint": "prettier --check . && eslint .",
+    "format": "prettier --write . && eslint --fix .",
     "test": "node --test --import tsx ./tests/locusts.test.ts"
   },
   "publishConfig": {
diff --git a/src/packages/locusts/tsconfig.json b/src/packages/locusts/tsconfig.json
index 0a5c316..5e3db2b 100644
--- a/src/packages/locusts/tsconfig.json
+++ b/src/packages/locusts/tsconfig.json
@@ -3,11 +3,6 @@
   "compilerOptions": {
     "outDir": "dist"
   },
-  "include": [
-    "src"
-  ],
-  "exclude": [
-    "node_modules",
-    "dist"
-  ]
-}
\ No newline at end of file
+  "include": ["src"],
+  "exclude": ["node_modules", "dist"]
+}
diff --git a/src/packages/svelte/README.md b/src/packages/svelte/README.md
index e638873..5fee47e 100644
--- a/src/packages/svelte/README.md
+++ b/src/packages/svelte/README.md
@@ -5,8 +5,8 @@
 
 ## Description
 
-Locusts is a series of libraries that allows you to introduce locusts into your codebase.
-Why would you want to do that? I don't know.
+Locusts is a series of libraries that allows you to introduce locusts into your
+codebase. Why would you want to do that? I don't know.
 
 ## Installation
 
diff --git a/src/packages/svelte/eslint.config.js b/src/packages/svelte/eslint.config.mjs
index a526565..7a1890c 100644
--- a/src/packages/svelte/eslint.config.js
+++ b/src/packages/svelte/eslint.config.mjs
@@ -1,24 +1,11 @@
-import prettier from 'eslint-config-prettier';
-import js from '@eslint/js';
 import svelte from 'eslint-plugin-svelte';
-import globals from 'globals';
 import ts from 'typescript-eslint';
+import library from '@repo/eslint-config/eslint.library.config.js';
 
-export default ts.config(
-	js.configs.recommended,
-	...ts.configs.recommended,
+const svelteConfig = ts.config(
 	...svelte.configs['flat/recommended'],
-	prettier,
 	...svelte.configs['flat/prettier'],
 	{
-		languageOptions: {
-			globals: {
-				...globals.browser,
-				...globals.node
-			}
-		}
-	},
-	{
 		files: ['**/*.svelte'],
 
 		languageOptions: {
@@ -31,3 +18,6 @@ export default ts.config(
 		ignores: ['build/', '.svelte-kit/', 'dist/']
 	}
 );
+
+/** @type {import("eslint").Linter.Config[]} */
+export default [...library, ...svelteConfig];
diff --git a/src/packages/svelte/package.json b/src/packages/svelte/package.json
index 863f062..713a633 100644
--- a/src/packages/svelte/package.json
+++ b/src/packages/svelte/package.json
@@ -1,77 +1,77 @@
 {
-  "name": "@locusts/svelte",
-  "description": "A svelte component that introduces locusts into your website.",
-  "version": "0.0.0",
-  "author": "Matt Strapp <matt+locusts@mattstrapp.net> (https://mattstrapp.net)",
-  "bugs": "https://github.com/locusts-r-us/locusts/issues",
-  "scripts": {
-    "dev": "vite dev",
-    "build": "vite build && npm run package",
-    "preview": "vite preview",
-    "package": "svelte-kit sync && svelte-package && publint",
-    "prepublishOnly": "npm run package",
-    "check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
-    "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
-    "format": "prettier --write .",
-    "lint": "prettier --check . && eslint .",
-    "test:unit": "vitest",
-    "test": "npm run test:unit -- --run"
-  },
-  "keywords": [
-    "svelte",
-    "component",
-    "why",
-    "joke"
-  ],
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/locusts-r-us/locusts.git",
-    "directory": "packages/svelte"
-  },
-  "license": "0BSD",
-  "files": [
-    "dist",
-    "!dist/**/*.test.*",
-    "!dist/**/*.spec.*"
-  ],
-  "sideEffects": [
-    "**/*.css"
-  ],
-  "svelte": "./dist/index.js",
-  "types": "./dist/index.d.ts",
-  "type": "module",
-  "exports": {
-    ".": {
-      "types": "./dist/index.d.ts",
-      "svelte": "./dist/index.js"
-    }
-  },
-  "peerDependencies": {
-    "svelte": "^5.0.0"
-  },
-  "devDependencies": {
-    "@repo/eslint-config": "workspace:*",
-    "@repo/typescript-config": "workspace:*",
-    "@sveltejs/adapter-auto": "^3.0.0",
-    "@sveltejs/kit": "^2.0.0",
-    "@sveltejs/package": "^2.0.0",
-    "@sveltejs/vite-plugin-svelte": "^4.0.0",
-    "@types/eslint": "^9.6.0",
-    "eslint": "^9.7.0",
-    "eslint-config-prettier": "^9.1.0",
-    "eslint-plugin-svelte": "^2.36.0",
-    "globals": "^15.0.0",
-    "prettier": "^3.3.2",
-    "prettier-plugin-svelte": "^3.2.6",
-    "publint": "^0.2.0",
-    "svelte": "^5.0.0",
-    "svelte-check": "^4.0.0",
-    "typescript": "^5.6.3",
-    "typescript-eslint": "^8.0.0",
-    "vite": "^5.0.11",
-    "vitest": "^2.0.4"
-  },
-  "publishConfig": {
-    "access": "public"
-  }
-}
\ No newline at end of file
+	"name": "@locusts/svelte",
+	"description": "A svelte component that introduces locusts into your website.",
+	"version": "0.0.0",
+	"author": "Matt Strapp <matt+locusts@mattstrapp.net> (https://mattstrapp.net)",
+	"bugs": "https://github.com/locusts-r-us/locusts/issues",
+	"scripts": {
+		"dev": "vite dev",
+		"build": "vite build && npm run package",
+		"preview": "vite preview",
+		"package": "svelte-kit sync && svelte-package && publint",
+		"prepublishOnly": "npm run package",
+		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
+		"format": "prettier --write .",
+		"lint": "prettier --check . && eslint --fix .",
+		"test:unit": "vitest",
+		"test": "npm run test:unit -- --run"
+	},
+	"keywords": [
+		"svelte",
+		"component",
+		"why",
+		"joke"
+	],
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/locusts-r-us/locusts.git",
+		"directory": "packages/svelte"
+	},
+	"license": "0BSD",
+	"files": [
+		"dist",
+		"!dist/**/*.test.*",
+		"!dist/**/*.spec.*"
+	],
+	"sideEffects": [
+		"**/*.css"
+	],
+	"svelte": "./dist/index.js",
+	"types": "./dist/index.d.ts",
+	"type": "module",
+	"exports": {
+		".": {
+			"types": "./dist/index.d.ts",
+			"svelte": "./dist/index.js"
+		}
+	},
+	"peerDependencies": {
+		"svelte": "^5.0.0"
+	},
+	"devDependencies": {
+		"@repo/eslint-config": "workspace:*",
+		"@repo/typescript-config": "workspace:*",
+		"@sveltejs/adapter-auto": "^3.0.0",
+		"@sveltejs/kit": "^2.0.0",
+		"@sveltejs/package": "^2.0.0",
+		"@sveltejs/vite-plugin-svelte": "^4.0.0",
+		"@types/eslint": "^9.6.0",
+		"eslint": "^9.7.0",
+		"eslint-config-prettier": "^9.1.0",
+		"eslint-plugin-svelte": "^2.36.0",
+		"globals": "^15.0.0",
+		"prettier": "^3.3.2",
+		"prettier-plugin-svelte": "^3.2.6",
+		"publint": "^0.2.0",
+		"svelte": "^5.0.0",
+		"svelte-check": "^4.0.0",
+		"typescript": "^5.6.3",
+		"typescript-eslint": "^8.0.0",
+		"vite": "^5.0.11",
+		"vitest": "^2.0.4"
+	},
+	"publishConfig": {
+		"access": "public"
+	}
+}
diff --git a/src/packages/svelte/src/demo.spec.ts b/src/packages/svelte/src/demo.spec.ts
index 682c26c..d2c1a85 100644
--- a/src/packages/svelte/src/demo.spec.ts
+++ b/src/packages/svelte/src/demo.spec.ts
@@ -1,4 +1,4 @@
-import { describe, it, expect } from 'vitest';
+import { describe, expect, it } from 'vitest';
 
 describe('Locusts should exist', () => {
 	it('Locusts should exist', () => {