chore: migrate legacy @kleros/kleros-v2-eslint-config to the new ESLINT flat config format

Author: kyrers

eslint-config/.eslintrc.js

@@ -16,7 +16,7 @@ module.exports = {
     "plugin:prettier/recommended",
     "plugin:import/recommended",
   ],
-  plugins: ["@typescript-eslint", "prettier", "import"],
+  plugins: ["@typescript-eslint", "prettier", "import", "n"],
   rules: {
     "no-unused-vars": [
       "error",
@@ -32,13 +32,13 @@ module.exports = {
         commonjs: true,
       },
     ],
-    "node/no-unsupported-features/es-syntax": [
+    "n/no-unsupported-features/es-syntax": [
       "error",
       {
         ignores: ["modules"],
       },
     ],
-    "node/no-missing-import": [
+    "n/no-missing-import": [
       "error",
       {
         tryExtensions: [".js", ".ts", ".json", ".node"],

eslint-config/flat.mjs

@@ -0,0 +1,18 @@
+//ESLint 9 requires flat config (eslint.config.*) and no longer reads legacy .eslintrc files automatically.
+//This file just migrates the legacy @kleros/kleros-v2-eslint-config to the new format, according to the docs.
+//For workspaces that don't need custom rules, a simple eslint.config.mjs that just exports:
+//export { default } from "@kleros/kleros-v2-eslint-config/flat.mjs";
+//is enough to provide access to the default eslint config for that workspace.
+import path from "node:path";
+import { fileURLToPath } from "node:url";
+import js from "@eslint/js";
+import { FlatCompat } from "@eslint/eslintrc";
+import legacyConfig from "./.eslintrc.js";
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+});
+
+export default [...compat.config(legacyConfig)];

eslint-config/package.json

@@ -4,23 +4,27 @@
   "private": true,
   "main": ".eslintrc.js",
   "license": "MIT",
+  "exports": {
+    ".": "./.eslintrc.js",
+    "./flat.mjs": "./flat.mjs"
+  },
   "dependencies": {
+    "@eslint/eslintrc": "^3.2.0",
+    "@eslint/js": "^9.15.0",
     "@typescript-eslint/eslint-plugin": "^8.15.0",
     "@typescript-eslint/parser": "^8.15.0",
     "@typescript-eslint/utils": "^8.15.0",
     "eslint": "^9.15.0",
     "eslint-config-prettier": "^9.1.0",
     "eslint-plugin-import": "^2.31.0",
-    "eslint-plugin-node": "^11.1.0",
+    "eslint-plugin-n": "^17.10.0",
     "eslint-plugin-prettier": "^5.2.1",
     "eslint-plugin-promise": "^6.6.0",
     "eslint-plugin-security": "^3.0.1",
     "eslint-utils": "^3.0.0",
     "prettier": "^3.3.3"
   },
   "devDependencies": {
-    "@eslint/eslintrc": "^3.2.0",
-    "@eslint/js": "^9.15.0",
     "globals": "^15.12.0",
     "typescript": "^5.6.3"
   },

yarn.lock

@@ -4312,6 +4312,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@eslint-community/eslint-utils@npm:^4.1.2, @eslint-community/eslint-utils@npm:^4.5.0":
+  version: 4.9.1
+  resolution: "@eslint-community/eslint-utils@npm:4.9.1"
+  dependencies:
+    eslint-visitor-keys: "npm:^3.4.3"
+  peerDependencies:
+    eslint: ^6.0.0 || ^7.0.0 || >=8.0.0
+  checksum: 10/863b5467868551c9ae34d03eefe634633d08f623fc7b19d860f8f26eb6f303c1a5934253124163bee96181e45ed22bf27473dccc295937c3078493a4a8c9eddd
+  languageName: node
+  linkType: hard
+
 "@eslint-community/eslint-utils@npm:^4.2.0, @eslint-community/eslint-utils@npm:^4.4.0":
   version: 4.4.0
   resolution: "@eslint-community/eslint-utils@npm:4.4.0"
@@ -4330,6 +4341,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@eslint-community/regexpp@npm:^4.11.0":
+  version: 4.12.2
+  resolution: "@eslint-community/regexpp@npm:4.12.2"
+  checksum: 10/049b280fddf71dd325514e0a520024969431dc3a8b02fa77476e6820e9122f28ab4c9168c11821f91a27982d2453bcd7a66193356ea84e84fb7c8d793be1ba0c
+  languageName: node
+  linkType: hard
+
 "@eslint/compat@npm:^1.2.3":
   version: 1.2.3
   resolution: "@eslint/compat@npm:1.2.3"
@@ -6957,11 +6975,13 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@kleros/kleros-sdk@workspace:kleros-sdk"
   dependencies:
+    "@kleros/kleros-v2-eslint-config": "workspace:^"
     "@reality.eth/reality-eth-lib": "npm:^3.4.15"
     "@types/mustache": "npm:^4.2.5"
     "@types/node": "npm:^20.19.24"
     "@urql/core": "npm:^5.0.8"
     "@vitest/ui": "npm:^1.6.1"
+    eslint: "npm:^9.15.0"
     mocha: "npm:^10.8.2"
     mustache: "npm:^4.2.0"
     rimraf: "npm:^6.0.1"
@@ -7049,7 +7069,7 @@ __metadata:
     eslint: "npm:^9.15.0"
     eslint-config-prettier: "npm:^9.1.0"
     eslint-plugin-import: "npm:^2.31.0"
-    eslint-plugin-node: "npm:^11.1.0"
+    eslint-plugin-n: "npm:^17.10.0"
     eslint-plugin-prettier: "npm:^5.2.1"
     eslint-plugin-promise: "npm:^6.6.0"
     eslint-plugin-security: "npm:^3.0.1"
@@ -19873,6 +19893,16 @@ __metadata:
   languageName: node
   linkType: hard
 
+"enhanced-resolve@npm:^5.17.1":
+  version: 5.21.0
+  resolution: "enhanced-resolve@npm:5.21.0"
+  dependencies:
+    graceful-fs: "npm:^4.2.4"
+    tapable: "npm:^2.3.3"
+  checksum: 10/234d37ddd5a190cb30527b8f7c4d440fa3c99a1247cccf60f74696c4f84c8b98a8178a7e97a7809ffcf1d31afb40c6a1d2805ccb19d9bbc8721ad6b4f8af4073
+  languageName: node
+  linkType: hard
+
 "enquire.js@npm:^2.1.6":
   version: 2.1.6
   resolution: "enquire.js@npm:2.1.6"
@@ -20622,6 +20652,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"eslint-compat-utils@npm:^0.5.1":
+  version: 0.5.1
+  resolution: "eslint-compat-utils@npm:0.5.1"
+  dependencies:
+    semver: "npm:^7.5.4"
+  peerDependencies:
+    eslint: ">=6.0.0"
+  checksum: 10/ac65ac1c6107cf19f63f5fc17cea361c9cb1336be7356f23dbb0fac10979974b4622e13e950be43cbf431801f2c07f7dab448573181ccf6edc0b86d5b5304511
+  languageName: node
+  linkType: hard
+
 "eslint-config-next@npm:^15.0.3":
   version: 15.0.3
   resolution: "eslint-config-next@npm:15.0.3"
@@ -20729,15 +20770,16 @@ __metadata:
   languageName: node
   linkType: hard
 
-"eslint-plugin-es@npm:^3.0.0":
-  version: 3.0.1
-  resolution: "eslint-plugin-es@npm:3.0.1"
+"eslint-plugin-es-x@npm:^7.8.0":
+  version: 7.8.0
+  resolution: "eslint-plugin-es-x@npm:7.8.0"
   dependencies:
-    eslint-utils: "npm:^2.0.0"
-    regexpp: "npm:^3.0.0"
+    "@eslint-community/eslint-utils": "npm:^4.1.2"
+    "@eslint-community/regexpp": "npm:^4.11.0"
+    eslint-compat-utils: "npm:^0.5.1"
   peerDependencies:
-    eslint: ">=4.19.1"
-  checksum: 10/9814e6305183edfdff7d99cbc0f95f0aed1446045cbd1d4f28e7be0903d0013880f0aaf04486a27de96bfb2f5a746bea97cbb238f9b0035cb378d48d179a0a1b
+    eslint: ">=8"
+  checksum: 10/1df8d52c4fadc06854ce801af05b05f2642aa2deb918fb7d37738596eabd70b7f21a22b150b78ec9104bac6a1b6b4fb796adea2364ede91b01d20964849ce5f7
   languageName: node
   linkType: hard
 
@@ -20826,19 +20868,22 @@ __metadata:
   languageName: node
   linkType: hard
 
-"eslint-plugin-node@npm:^11.1.0":
-  version: 11.1.0
-  resolution: "eslint-plugin-node@npm:11.1.0"
+"eslint-plugin-n@npm:^17.10.0":
+  version: 17.24.0
+  resolution: "eslint-plugin-n@npm:17.24.0"
   dependencies:
-    eslint-plugin-es: "npm:^3.0.0"
-    eslint-utils: "npm:^2.0.0"
-    ignore: "npm:^5.1.1"
-    minimatch: "npm:^3.0.4"
-    resolve: "npm:^1.10.1"
-    semver: "npm:^6.1.0"
+    "@eslint-community/eslint-utils": "npm:^4.5.0"
+    enhanced-resolve: "npm:^5.17.1"
+    eslint-plugin-es-x: "npm:^7.8.0"
+    get-tsconfig: "npm:^4.8.1"
+    globals: "npm:^15.11.0"
+    globrex: "npm:^0.1.2"
+    ignore: "npm:^5.3.2"
+    semver: "npm:^7.6.3"
+    ts-declaration-location: "npm:^1.0.6"
   peerDependencies:
-    eslint: ">=5.16.0"
-  checksum: 10/bda540f390a84d835989f21f56743f3aa8f41fd9b53359d635c116632c86af92d70d8e6449ddd18860e6241f9cef04fc90c37eb192a9047c3c3a46de6145c30c
+    eslint: ">=8.23.0"
+  checksum: 10/bbff1172f7297288d209f167febb3a31747838d5ed8050aa7d1aa2540a49b4f9932828831529f0306f2909e41ae3ae8848c145238a6990eae5a9d128a59b056c
   languageName: node
   linkType: hard
 
@@ -20967,15 +21012,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"eslint-utils@npm:^2.0.0":
-  version: 2.1.0
-  resolution: "eslint-utils@npm:2.1.0"
-  dependencies:
-    eslint-visitor-keys: "npm:^1.1.0"
-  checksum: 10/a7e43a5154a16a90c021cabeb160c3668cccbcf6474ccb2a7d7762698582398f3b938c5330909b858ef7c21182edfc9786dbf89ed7b294f51b7659a378bf7cec
-  languageName: node
-  linkType: hard
-
 "eslint-utils@npm:^3.0.0":
   version: 3.0.0
   resolution: "eslint-utils@npm:3.0.0"
@@ -20987,21 +21023,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"eslint-visitor-keys@npm:^1.1.0":
-  version: 1.3.0
-  resolution: "eslint-visitor-keys@npm:1.3.0"
-  checksum: 10/595ab230e0fcb52f86ba0986a9a473b9fcae120f3729b43f1157f88f27f8addb1e545c4e3d444185f2980e281ca15be5ada6f65b4599eec227cf30e41233b762
-  languageName: node
-  linkType: hard
-
 "eslint-visitor-keys@npm:^2.0.0, eslint-visitor-keys@npm:^2.1.0":
   version: 2.1.0
   resolution: "eslint-visitor-keys@npm:2.1.0"
   checksum: 10/db4547eef5039122d518fa307e938ceb8589da5f6e8f5222efaf14dd62f748ce82e2d2becd3ff9412a50350b726bda95dbea8515a471074547daefa58aee8735
   languageName: node
   linkType: hard
 
-"eslint-visitor-keys@npm:^3.3.0, eslint-visitor-keys@npm:^3.4.1":
+"eslint-visitor-keys@npm:^3.3.0, eslint-visitor-keys@npm:^3.4.1, eslint-visitor-keys@npm:^3.4.3":
   version: 3.4.3
   resolution: "eslint-visitor-keys@npm:3.4.3"
   checksum: 10/3f357c554a9ea794b094a09bd4187e5eacd1bc0d0653c3adeb87962c548e6a1ab8f982b86963ae1337f5d976004146536dcee5d0e2806665b193fbfbf1a9231b
@@ -22858,6 +22887,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"get-tsconfig@npm:^4.8.1":
+  version: 4.14.0
+  resolution: "get-tsconfig@npm:4.14.0"
+  dependencies:
+    resolve-pkg-maps: "npm:^1.0.0"
+  checksum: 10/f5626971905ca386c9ddeb302504e8a2301b9c05641803267223ebd50b7c81aaf9324d29cf9f4e4ff3f245632c3392aa83719dc6cb3e98b4e4a1702a27c5cc5d
+  languageName: node
+  linkType: hard
+
 "ghost-testrpc@npm:^0.0.2":
   version: 0.0.2
   resolution: "ghost-testrpc@npm:0.0.2"
@@ -23133,6 +23171,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"globals@npm:^15.11.0":
+  version: 15.15.0
+  resolution: "globals@npm:15.15.0"
+  checksum: 10/7f561c87b2fd381b27fc2db7df8a4ea7a9bb378667b8a7193e61fd2ca3a876479174e2a303a74345fbea6e1242e16db48915c1fd3bf35adcf4060a795b425e18
+  languageName: node
+  linkType: hard
+
 "globals@npm:^15.12.0":
   version: 15.12.0
   resolution: "globals@npm:15.12.0"
@@ -24452,7 +24497,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"ignore@npm:^5.1.1, ignore@npm:^5.2.0, ignore@npm:^5.2.4, ignore@npm:^5.3.1":
+"ignore@npm:^5.1.1, ignore@npm:^5.2.0, ignore@npm:^5.2.4, ignore@npm:^5.3.1, ignore@npm:^5.3.2":
   version: 5.3.2
   resolution: "ignore@npm:5.3.2"
   checksum: 10/cceb6a457000f8f6a50e1196429750d782afce5680dd878aa4221bd79972d68b3a55b4b1458fc682be978f4d3c6a249046aa0880637367216444ab7b014cfc98
@@ -34093,13 +34138,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"regexpp@npm:^3.0.0":
-  version: 3.2.0
-  resolution: "regexpp@npm:3.2.0"
-  checksum: 10/3310010895a906873262f4b494fc99bcef1e71ef6720a0532c5999ca586498cbd4a284c8e3c2423f9d1d37512fd08d6064b7564e0e59508cf938f76dd15ace84
-  languageName: node
-  linkType: hard
-
 "regexpu-core@npm:^5.3.1":
   version: 5.3.2
   resolution: "regexpu-core@npm:5.3.2"
@@ -34427,7 +34465,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"resolve@npm:^1.1.6, resolve@npm:^1.1.7, resolve@npm:^1.10.0, resolve@npm:^1.10.1, resolve@npm:^1.14.2, resolve@npm:^1.17.0, resolve@npm:^1.19.0, resolve@npm:^1.20.0, resolve@npm:^1.22.2, resolve@npm:^1.22.4, resolve@npm:~1.22.1, resolve@npm:~1.22.2":
+"resolve@npm:^1.1.6, resolve@npm:^1.1.7, resolve@npm:^1.10.0, resolve@npm:^1.14.2, resolve@npm:^1.17.0, resolve@npm:^1.19.0, resolve@npm:^1.20.0, resolve@npm:^1.22.2, resolve@npm:^1.22.4, resolve@npm:~1.22.1, resolve@npm:~1.22.2":
   version: 1.22.8
   resolution: "resolve@npm:1.22.8"
   dependencies:
@@ -34469,7 +34507,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"resolve@patch:resolve@npm%3A^1.1.6#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.1.7#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.10.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.10.1#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.14.2#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.17.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.19.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.20.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.22.2#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.22.4#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A~1.22.1#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A~1.22.2#optional!builtin<compat/resolve>":
+"resolve@patch:resolve@npm%3A^1.1.6#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.1.7#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.10.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.14.2#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.17.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.19.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.20.0#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.22.2#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A^1.22.4#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A~1.22.1#optional!builtin<compat/resolve>, resolve@patch:resolve@npm%3A~1.22.2#optional!builtin<compat/resolve>":
   version: 1.22.8
   resolution: "resolve@patch:resolve@npm%3A1.22.8#optional!builtin<compat/resolve>::version=1.22.8&hash=c3c19d"
   dependencies:
@@ -35197,7 +35235,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"semver@npm:^6.0.0, semver@npm:^6.1.0, semver@npm:^6.1.2, semver@npm:^6.3.0, semver@npm:^6.3.1":
+"semver@npm:^6.0.0, semver@npm:^6.1.2, semver@npm:^6.3.0, semver@npm:^6.3.1":
   version: 6.3.1
   resolution: "semver@npm:6.3.1"
   bin:
@@ -37039,6 +37077,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"tapable@npm:^2.3.3":
+  version: 2.3.3
+  resolution: "tapable@npm:2.3.3"
+  checksum: 10/21fb64a7ae1a0e11d855a6c33a22ae5ecf7e2f23170c942da673b44bf4c3aae8aa52451ef2792d0ce36c7feca13dceafa4f135105d66fc06912632488c0913fd
+  languageName: node
+  linkType: hard
+
 "tar-stream@npm:^1.5.2":
   version: 1.6.2
   resolution: "tar-stream@npm:1.6.2"
@@ -37577,6 +37622,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"ts-declaration-location@npm:^1.0.6":
+  version: 1.0.7
+  resolution: "ts-declaration-location@npm:1.0.7"
+  dependencies:
+    picomatch: "npm:^4.0.2"
+  peerDependencies:
+    typescript: ">=4.0.0"
+  checksum: 10/a7932fc75d41f10c16089f8f5a5c1ea49d6afca30f09c91c1df14d0a8510f72bcb9f8a395c04f060b66b855b6bd7ea4df81b335fb9d21bef402969a672a4afa7
+  languageName: node
+  linkType: hard
+
 "ts-easing@npm:^0.2.0":
   version: 0.2.0
   resolution: "ts-easing@npm:0.2.0"