From 19f6b992dd0d2eb47a0648aab54eb6839828393f Mon Sep 17 00:00:00 2001
From: James Garbutt <43081j@users.noreply.github.com>
Date: Mon, 3 Feb 2025 21:11:47 +0000
Subject: [PATCH] chore: move to eslint flat config

Moves to using an ESLint flat config.
---
 .eslintignore       |  1 -
 .eslintrc.json      | 16 -----------
 eslint.config.js    | 30 +++++++++++++++++++++
 package-lock.json   | 66 +++++++++++++++++++++++++++++++++++++--------
 package.json        |  2 ++
 test/.eslintrc.json |  7 -----
 6 files changed, 87 insertions(+), 35 deletions(-)
 delete mode 100644 .eslintignore
 delete mode 100644 .eslintrc.json
 create mode 100644 eslint.config.js
 delete mode 100644 test/.eslintrc.json

diff --git a/.eslintignore b/.eslintignore
deleted file mode 100644
index 404abb2..0000000
--- a/.eslintignore
+++ /dev/null
@@ -1 +0,0 @@
-coverage/
diff --git a/.eslintrc.json b/.eslintrc.json
deleted file mode 100644
index 7852733..0000000
--- a/.eslintrc.json
+++ /dev/null
@@ -1,16 +0,0 @@
-{
-  "root": true,
-  "extends": [
-    "eslint:recommended"
-  ],
-  "env": {
-    "node": true,
-    "es2022": true
-  },
-  "parserOptions": {
-    "ecmaVersion": "2022",
-    "sourceType": "module"
-  },
-  "rules": {
-  }
-}
diff --git a/eslint.config.js b/eslint.config.js
new file mode 100644
index 0000000..e88d131
--- /dev/null
+++ b/eslint.config.js
@@ -0,0 +1,30 @@
+import eslintjs from "@eslint/js";
+import globals from 'globals';
+
+const {configs: eslintConfigs} = eslintjs;
+
+export default [
+  {
+    ignores: [
+      'coverage/'
+    ],
+  },
+  eslintConfigs["recommended"],
+  {
+    files: ['test/**/*.js'],
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+      }
+    }
+  },
+  {
+    files: ['test/**/*.js'],
+    languageOptions: {
+      globals: {
+        ...globals.mocha,
+        ...globals.node,
+      }
+    }
+  }
+];
diff --git a/package-lock.json b/package-lock.json
index 85bd2e2..cf21e23 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,9 +12,11 @@
         "check-error": "^2.0.0"
       },
       "devDependencies": {
+        "@eslint/js": "^9.19.0",
         "c8": "^10.0.0",
         "chai": "^5.1.0",
         "eslint": "^8.57.0",
+        "globals": "^15.14.0",
         "mocha": "^10.4.0",
         "prettier": "^3.2.5"
       },
@@ -85,6 +87,22 @@
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
       "dev": true
     },
+    "node_modules/@eslint/eslintrc/node_modules/globals": {
+      "version": "13.24.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
+      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "type-fest": "^0.20.2"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/@eslint/eslintrc/node_modules/js-yaml": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
@@ -98,12 +116,13 @@
       }
     },
     "node_modules/@eslint/js": {
-      "version": "8.57.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.57.0.tgz",
-      "integrity": "sha512-Ys+3g2TaW7gADOJzPt83SJtCDhMjndcDMFVQ/Tj9iA1BfJzFKD9mAUXT3OenpuPHbI6P/myECxRJrofUsDx/5g==",
+      "version": "9.19.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.19.0.tgz",
+      "integrity": "sha512-rbq9/g38qjfqFLOVPvwjIvFFdNziEC5S65jmjPw5r6A//QH+W91akh9irMwjDN8zKUTak6W9EsAv4m/7Wnw0UQ==",
       "dev": true,
+      "license": "MIT",
       "engines": {
-        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
       }
     },
     "node_modules/@humanwhocodes/config-array": {
@@ -838,12 +857,38 @@
         "url": "https://opencollective.com/eslint"
       }
     },
+    "node_modules/eslint/node_modules/@eslint/js": {
+      "version": "8.57.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-8.57.0.tgz",
+      "integrity": "sha512-Ys+3g2TaW7gADOJzPt83SJtCDhMjndcDMFVQ/Tj9iA1BfJzFKD9mAUXT3OenpuPHbI6P/myECxRJrofUsDx/5g==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
+      }
+    },
     "node_modules/eslint/node_modules/argparse": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
       "integrity": "sha512-8+9WqebbFzpX9OR+Wa6O29asIogeRMzcGtAINdpMHHyAg10f05aSFVBbcEqGf/PXw1EjAZ+q2/bEBg3DvurK3Q==",
       "dev": true
     },
+    "node_modules/eslint/node_modules/globals": {
+      "version": "13.24.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
+      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "type-fest": "^0.20.2"
+      },
+      "engines": {
+        "node": ">=8"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/eslint/node_modules/js-yaml": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
@@ -1169,15 +1214,13 @@
       }
     },
     "node_modules/globals": {
-      "version": "13.24.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-13.24.0.tgz",
-      "integrity": "sha512-AhO5QUcj8llrbG09iWhPU2B204J1xnPeL8kQmVorSsy+Sjj1sk8gIyh6cUocGmH4L0UuhAJy+hJMRA4mgA4mFQ==",
+      "version": "15.14.0",
+      "resolved": "https://registry.npmjs.org/globals/-/globals-15.14.0.tgz",
+      "integrity": "sha512-OkToC372DtlQeje9/zHIo5CT8lRP/FUgEOKBEhU4e0abL7J7CD24fD9ohiLN5hagG/kWCYj4K5oaxxtj2Z0Dig==",
       "dev": true,
-      "dependencies": {
-        "type-fest": "^0.20.2"
-      },
+      "license": "MIT",
       "engines": {
-        "node": ">=8"
+        "node": ">=18"
       },
       "funding": {
         "url": "https://github.com/sponsors/sindresorhus"
@@ -2210,6 +2253,7 @@
       "resolved": "https://registry.npmjs.org/type-fest/-/type-fest-0.20.2.tgz",
       "integrity": "sha512-Ne+eE4r0/iWnpAxD852z3A+N0Bt5RN//NjJwRd2VFHEmrywxf5vsZlh4R6lixl6B+wz/8d+maTSAkN1FIkI3LQ==",
       "dev": true,
+      "license": "(MIT OR CC0-1.0)",
       "engines": {
         "node": ">=10"
       },
diff --git a/package.json b/package.json
index 5c6be79..a1108f4 100644
--- a/package.json
+++ b/package.json
@@ -38,9 +38,11 @@
     "chai": ">= 2.1.2 < 6"
   },
   "devDependencies": {
+    "@eslint/js": "^9.19.0",
     "c8": "^10.0.0",
     "chai": "^5.1.0",
     "eslint": "^8.57.0",
+    "globals": "^15.14.0",
     "mocha": "^10.4.0",
     "prettier": "^3.2.5"
   }
diff --git a/test/.eslintrc.json b/test/.eslintrc.json
deleted file mode 100644
index 26aaba6..0000000
--- a/test/.eslintrc.json
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "extends": "../.eslintrc.json",
-  "env": {
-    "mocha": true,
-    "node": true
-  }
-}