Add basic ESLint configuration

.eslintignore

@@ -0,0 +1 @@
+src/test.ts

.eslintrc.cjs

@@ -0,0 +1,23 @@
+/* eslint-env node */
+module.exports = {
+  extends: [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:svelte/recommended",
+  ],
+  parser: "@typescript-eslint/parser",
+  parserOptions: {
+    extraFileExtensions: [".svelte"],
+  },
+  overrides: [
+    {
+      files: ["*.svelte"],
+      parser: "svelte-eslint-parser",
+      parserOptions: {
+        parser: "@typescript-eslint/parser",
+      },
+    },
+  ],
+  plugins: ["@typescript-eslint"],
+  root: true,
+}

.vscode/extensions.json

@@ -1,10 +1,11 @@
 {
-    "recommendations": [
-        "esbenp.prettier-vscode",
-        "eamodio.gitlens",
-        "github.vscode-pull-request-github",
-        "svelte.svelte-vscode",
-        "bradlc.vscode-tailwindcss",
-        "editorconfig.editorconfig"
-    ]
+  "recommendations": [
+    "esbenp.prettier-vscode",
+    "eamodio.gitlens",
+    "github.vscode-pull-request-github",
+    "svelte.svelte-vscode",
+    "bradlc.vscode-tailwindcss",
+    "editorconfig.editorconfig",
+    "dbaeumer.vscode-eslint"
+  ]
 }

package.json

@@ -39,6 +39,9 @@
     "generate": "mkdir -p ./assets/generated; npm run generate:licenses; npm run generate:images; npm run generate:charging-stations; npm run generate:translations; npm run reset:layeroverview; npm run generate:service-worker",
     "generate:charging-stations": "cd ./assets/layers/charging_station && vite-node csvToJson.ts && cd -",
     "prepare-deploy": "npm run generate:service-worker && ./scripts/build.sh",
+    "lint": "npm run lint:prettier && npm run lint:eslint",
+    "lint:eslint": "eslint ./src",
+    "lint:prettier": "prettier  --check '**/*.ts' '**/*.svelte'",
     "format": "prettier --write '**/*.ts' '**/*.svelte'",
     "clean:tests": "find . -type f -name \"*.doctest.ts\" | xargs -r rm",
     "clean": "rm -rf .cache/ && (find *.html | grep -v \"^\\(404\\|index\\|land\\|test\\|studio\\|theme\\|style_test\\|statistics\\).html\" | xargs -r rm) && (ls | grep \"^index_[a-zA-Z_-]\\+\\.ts$\" | xargs -r rm)",
@@ -123,9 +126,13 @@
     "@types/prompt-sync": "^4.1.0",
     "@types/wikidata-sdk": "^6.1.0",
     "@types/xml2js": "^0.4.9",
+    "@typescript-eslint/eslint-plugin": "^6.1.0",
+    "@typescript-eslint/parser": "^6.1.0",
     "assert": "^2.0.0",
     "chai": "^4.3.6",
     "dependency-cruiser": "^10.4.0",
+    "eslint": "^8.45.0",
+    "eslint-plugin-svelte": "^2.32.2",
     "fs": "0.0.1-security",
     "node-html-parser": "^6.1.5",
     "prettier": "^2.8.8",
@@ -140,9 +147,7 @@
     "ts-node": "^10.9.1",
     "ts2json-schema": "^1.4.0",
     "tslib": "^2.5.0",
-    "tslint": "^6.1.3",
-    "tslint-no-circular-imports": "^0.7.0",
     "typescript": "^4.7.4",
     "vite": "^4.0.5"
   }
-}
+}