feat: migrate to flat eslint config (#485)

.lintstagedrc.json

@@ -1,3 +1,3 @@
 {
-  "*.{js,jsx,ts,tsx}": "eslint --cache --format=node_modules/eslint-formatter-pretty --ext .ts,.tsx"
+  "*.{js,jsx,ts,tsx}": "eslint --cache --max-warnings 0 --no-warn-ignored"
 }

.vscode/settings.json

@@ -1,3 +1,4 @@
 {
-  "typescript.tsdk": "node_modules/typescript/lib"
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "eslint.experimental.useFlatConfig": true
 }

eslint.config.js

@@ -0,0 +1,8 @@
+const txoConfig = require('eslint-config-txo-typescript')
+
+/** @type {import('eslint').Linter.FlatConfig[]} */
+const config = [
+  ...txoConfig.default,
+]
+
+module.exports = config

package.json

@@ -24,12 +24,12 @@
     "test:watch": "concurrently \"yarn build:watch\" \"jest --watch\"",
     "coverage": "jest --coverage && open coverage/lcov-report/index.html || xdg-open coverage/lcov-report/index.html",
     "compare-boilerplate-version": "./scripts/compare-boilerplate-version.sh",
-    "lint": "eslint --format=node_modules/eslint-formatter-pretty --ext .jsx,.js,.ts,.tsx .",
-    "fixcode": "eslint --format=node_modules/eslint-formatter-pretty --ext .jsx,.js,.ts,.tsx . --fix",
+    "lint": "eslint --max-warnings 0 .",
+    "fixcode": "eslint . --fix",
     "git-hook": "yarn -s lint-staged",
     "prepare": "husky install && yarn build",
     "print-txo-packages": "yarn list 2> /dev/null|grep @txo|sed 's/.*\\(@txo[^@]*\\)@^*\\([^ ]*\\).*/\\1@\\2/g'|sort|uniq",
-    "sanity": "yarn lint && yarn build && tsc --noEmit && yarn test && yarn compare-boilerplate-version && echo 'success'",
+    "sanity": "yarn lint && yarn build && tsc --noEmit && yarn test --coverage && yarn compare-boilerplate-version && echo 'success'",
     "semantic-release": "semantic-release",
     "update-boilerplate-version": "./scripts/update-boilerplate-version.sh"
   },
@@ -56,17 +56,8 @@
     "@types/lodash.get": "^4.4.9",
     "@types/node-fetch": "^2.6.9",
     "@types/react": "^18.2.37",
-    "@typescript-eslint/eslint-plugin": "^6.9.0",
-    "@typescript-eslint/parser": "^6.9.0",
     "concurrently": "^8.2.2",
-    "eslint": "^8.52.0",
-    "eslint-config-txo-typescript": "^3.4.0",
-    "eslint-formatter-pretty": "^5.0.0",
-    "eslint-plugin-eslint-comments": "^3.2.0",
-    "eslint-plugin-import": "^2.29.0",
-    "eslint-plugin-jest": "^27.6.0",
-    "eslint-plugin-n": "^16.2.0",
-    "eslint-plugin-promise": "^6.1.1",
+    "eslint-config-txo-typescript": "^4.0.3",
     "graphql": "^16.8.1",
     "husky": "^8.0.3",
     "jest": "^29.7.0",