chore(eslint): add ESLint toolchain and clean src to strict 0/0 (#1165)

* chore(eslint): add eslint toolchain and configs * fix(eslint): resolve gradual-config errors (rules-of-hooks, no-empty, prefer-const, …) * chore(eslint): clear unused vars in config, contexts, app and test * chore(eslint): clear unused vars in api and music-network * chore(eslint): clear unused vars in utils * chore(eslint): clear unused vars in store * chore(eslint): clear unused vars in cover and hooks * chore(eslint): clear unused vars in components * chore(eslint): clear unused vars in pages * chore(eslint): remove explicit any in src * chore(eslint): align react-hooks exhaustive-deps * chore(eslint): zero gradual config on src * chore(eslint): strict hook rules in store and utils * chore(eslint): strict hook rules in hooks and cover * chore(eslint): strict hook rules in components * chore(eslint): strict hook rules in pages and contexts * chore(eslint): document scripts ignore in eslint config * chore(eslint): add lint script and zero strict findings * chore(eslint): address review round 1 (gradual 0/0, per-site disable reasons) * chore(eslint): tighten two set-state disable comments (review round 2 LOW) * chore(nix): sync npmDepsHash with package-lock.json * docs(changelog): add Under the Hood entry for ESLint setup (PR #1165) --------- Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
2026-07-21 14:55:43 +00:00 · 2026-06-24 01:33:34 +02:00
parent c7d76af790
commit 7c724a642f
258 changed files with 2987 additions and 601 deletions
@@ -0,0 +1,45 @@
+import eslint from '@eslint/js';
+import globals from 'globals';
+import reactHooks from 'eslint-plugin-react-hooks';
+import reactRefresh from 'eslint-plugin-react-refresh';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  // `scripts/` (Node CI helpers) is intentionally ignored — this config targets the browser `src/` tree.
+  { ignores: ['dist', 'coverage', 'src-tauri', 'research', 'scripts'] },
+  // This gradual baseline deliberately omits the React Compiler rules (set-state-in-effect, refs,
+  // immutability, …) that the strict config enables. The per-line `eslint-disable-next-line` directives
+  // those rules require therefore read as "unused" here, so unused-directive reporting is turned off for
+  // this config only — the strict config keeps the default reporting and stays 0/0.
+  { linterOptions: { reportUnusedDisableDirectives: 'off' } },
+  eslint.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    files: ['**/*.{ts,tsx}'],
+    languageOptions: {
+      ecmaVersion: 2020,
+      globals: globals.browser,
+    },
+    plugins: {
+      'react-hooks': reactHooks,
+      'react-refresh': reactRefresh,
+    },
+    rules: {
+      'react-hooks/rules-of-hooks': 'error',
+      'react-hooks/exhaustive-deps': 'warn',
+      'react-refresh/only-export-components': [
+        'warn',
+        { allowConstantExport: true },
+      ],
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        {
+          argsIgnorePattern: '^_',
+          varsIgnorePattern: '^_',
+          caughtErrorsIgnorePattern: '^_',
+        },
+      ],
+      '@typescript-eslint/no-explicit-any': 'warn',
+    },
+  },
+);