core: Flesh out ESLint package.

packages/eslint-config/typescript-config.js

@@ -0,0 +1,61 @@
+// @ts-check
+import tseslint from "typescript-eslint";
+
+/**
+ * ESLint configuration for TypeScript authentik projects.
+ */
+export const typescriptConfig = tseslint.config({
+    rules: {
+        "@typescript-eslint/ban-ts-comment": [
+            "warn",
+            {
+                "ts-ignore": "allow-with-description",
+            },
+        ],
+        "@typescript-eslint/ban-types": "off",
+        "@typescript-eslint/no-empty-interface": "off",
+        "@typescript-eslint/no-explicit-any": "off",
+        "@typescript-eslint/no-extra-semi": "off",
+        "@typescript-eslint/no-misused-new": "off",
+        "@typescript-eslint/no-non-null-assertion": "off",
+        "@typescript-eslint/no-shadow": [
+            "warn",
+            {
+                ignoreFunctionTypeParameterNameValueShadow: true,
+                ignoreTypeValueShadow: true,
+            },
+        ],
+        "@typescript-eslint/no-unused-vars": [
+            "warn",
+            {
+                args: "all",
+                argsIgnorePattern: "^_",
+                caughtErrors: "all",
+                caughtErrorsIgnorePattern: "^_",
+                destructuredArrayIgnorePattern: "^_",
+                // Ignore all variables, since Prettier takes care of this.
+                varsIgnorePattern: "^\\w",
+                ignoreRestSiblings: true,
+            },
+        ],
+        "@typescript-eslint/no-var-requires": "off",
+
+        "eqeqeq": ["error", "always", { null: "ignore" }],
+        "no-shadow": "off",
+        "no-extra-semi": "off",
+        "no-undef": "off",
+        "no-unused-vars": "off",
+        "object-shorthand": [
+            "warn",
+            "always",
+            {
+                avoidQuotes: true,
+                ignoreConstructors: true,
+                avoidExplicitReturnArrows: false,
+            },
+        ],
+        "prefer-const": "warn",
+    },
+});
+
+export default typescriptConfig;