Add linting

Author: thinknathan

.eslintignore

@@ -0,0 +1,4 @@
+node_modules
+*.js
+*.cjs
+*.mjs

.eslintrc

@@ -0,0 +1,25 @@
+{
+	"root": true,
+	"parser": "@typescript-eslint/parser",
+	"parserOptions": {
+		"project": "tsconfig.json"
+	},
+	"plugins": [
+		"@typescript-eslint",
+		"prettier"
+	],
+	"extends": [
+		"eslint:recommended",
+		"plugin:@typescript-eslint/recommended",
+		"prettier"
+	],
+	"rules": {
+		"@typescript-eslint/no-unused-vars": [
+			"error",
+			{
+				"args": "all",
+				"argsIgnorePattern": "^_"
+			}
+		]
+	}
+}

package.json

@@ -18,13 +18,19 @@
 		"utils"
 	],
 	"scripts": {
-		"ci": "tsc --noEmit",
+		"ci": "npm run lint && tsc --noEmit",
 		"build": "tsc && npm run renameCjs && npm run prettier",
+		"lint": "eslint src",
 		"renameCjs": "node -e \"require('fs').renameSync('px.js', 'px.cjs')\"",
 		"prettier": "prettier \"./**/*.{ts,d.ts,cjs,md,json}\" --write"
 	},
 	"devDependencies": {
 		"@types/yargs": "^17.0.32",
+		"@typescript-eslint/eslint-plugin": "~6.16.0",
+		"@typescript-eslint/parser": "~6.16.0",
+		"eslint": "~8.56.0",
+		"eslint-config-prettier": "~9.1.0",
+		"eslint-plugin-prettier": "~5.1.0",
 		"prettier": "^3.1.1",
 		"typescript": "~5.3.3"
 	},