vite.config.ts

import { recommended } from '@effect/tsgo/oxlint-presets';
import { defineConfig } from 'vite-plus';

// Workspace-root toolchain configuration.
//
// Oxlint and Oxfmt are configured here and only here. `vp lint`, `vp fmt`, and
// `vp check` read the root `lint` and `fmt` blocks even when invoked from a
// package directory, and Oxlint/Oxfmt ignore nested configs in Vite+ mode, so a
// package cannot drift from this file. Package-level `vite.config.ts` files
// are for per-package concerns only (currently just `pack`); anything a second
// package would also need belongs here, as a `lint.overrides` or `fmt.overrides`
// entry keyed on workspace globs such as `packages/<name>/**`.
export default defineConfig({
  fmt: {
    arrowParens: 'avoid',
    bracketSameLine: true,
    bracketSpacing: true,
    htmlWhitespaceSensitivity: 'css',
    importOrderCaseSensitive: false,
    jsdoc: {
      capitalizeDescriptions: true,
      commentLineStrategy: 'multiline',
      descriptionTag: true,
      descriptionWithDot: true,
      keepUnparsableExampleIndent: false,
      preferCodeFences: true,
      separateReturnsFromParam: true,
      separateTagGroups: true,
    },
    jsxSingleQuote: true,
    objectWrap: 'collapse',
    printWidth: 150,
    quoteProps: 'as-needed',
    semi: true,
    singleQuote: true,
    sortImports: {
      groups: [
        'side_effect_style',
        'side_effect',
        'type-import',
        ['value-builtin', 'value-external'],
        'type-internal',
        'value-internal',
        ['type-parent', 'type-sibling', 'type-index'],
        ['value-parent', 'value-sibling', 'value-index'],
        'unknown',
      ],
      newlinesBetween: true,
      sortSideEffects: true,
    },
    sortPackageJson: { sortScripts: true },
    tabWidth: 2,
    trailingComma: 'es5',
  },
  lint: {
    categories: { correctness: 'error' },
    env: { browser: true, builtin: true, node: true, vitest: true },
    extends: [recommended],
    ignorePatterns: ['**/dist', '**/node_modules', '**/coverage'],
    jsPlugins: [{ name: 'vite-plus', specifier: 'vite-plus/oxlint-plugin' }],
    options: { reportUnusedDisableDirectives: 'warn', typeAware: true },
    overrides: [
      { files: ['vite.config.ts'], rules: { 'sort-keys': ['error', 'asc', { minKeys: 5, natural: true, caseSensitive: true }] } },
      { files: ['scripts/**/*.{mjs,js,ts,mts}'], rules: { 'effecttsgo/node-builtin-import': 'off' } },
      { files: ['**/*.bench.ts'], rules: { 'vitest/expect-expect': 'off' } },
    ],
    plugins: ['oxc', 'typescript', 'unicorn', 'import', 'vitest', 'node', 'promise'],
    rules: {
      'arrow-body-style': ['error', 'as-needed', { requireReturnForObjectLiteral: false }],
      'effecttsgo/any-unknown-in-error-context': 'warn',
      'effecttsgo/async-function': 'off',
      'effecttsgo/catch-to-or-else-succeed': 'warn',
      'effecttsgo/crypto-random-uuid': 'off',
      'effecttsgo/crypto-random-uuid-in-effect': 'warn',
      'effecttsgo/extends-native-error': 'warn',
      'effecttsgo/global-console': 'off',
      'effecttsgo/global-console-in-effect': 'warn',
      'effecttsgo/global-date': 'off',
      'effecttsgo/global-date-in-effect': 'warn',
      'effecttsgo/global-fetch': 'off',
      'effecttsgo/global-fetch-in-effect': 'warn',
      'effecttsgo/global-random': 'off',
      'effecttsgo/global-random-in-effect': 'warn',
      'effecttsgo/global-timers': 'off',
      'effecttsgo/global-timers-in-effect': 'warn',
      'effecttsgo/instance-of-schema': 'off',
      'effecttsgo/leaking-requirements': 'error',
      'effecttsgo/new-promise': 'off',
      'effecttsgo/node-builtin-import': 'warn',
      'effecttsgo/prefer-schema-over-json': 'warn',
      'effecttsgo/process-env': 'off',
      'effecttsgo/process-env-in-effect': 'warn',
      'effecttsgo/redundant-schema-tag-identifier': 'allow', // NOTE: this rule is allowed for now to reduce noise
      'effecttsgo/unnecessary-fail-yieldable-error': 'warn',
      'effecttsgo/unsafe-effect-type-assertion': 'warn',
      'import/consistent-type-specifier-style': 'error',
      'import/newline-after-import': 'warn',
      'import/no-relative-parent-imports': 'error',
      'import/unambiguous': 'warn',
      'typescript/adjacent-overload-signatures': 'error',
      'typescript/array-type': ['error', { default: 'generic', readonly: 'generic' }],
      'typescript/consistent-type-exports': 'error',
      'typescript/consistent-type-imports': ['error', { fixStyle: 'separate-type-imports', disallowTypeAnnotations: false }],
      'typescript/no-explicit-any': 'error',
      'typescript/no-misused-spread': 'off',
      'typescript/no-unnecessary-boolean-literal-compare': 'warn',
      'typescript/no-unnecessary-type-arguments': 'warn',
      'typescript/no-unnecessary-type-constraint': 'warn',
      'typescript/no-unnecessary-type-conversion': 'warn',
      'typescript/prefer-nullish-coalescing': 'off',
      'typescript/restrict-template-expressions': ['warn', { allowNever: true }],
      'vite-plus/prefer-vite-plus-imports': 'error',
      'vitest/no-conditional-expect': 'off',
      'vitest/no-standalone-expect': 'off',
      'vitest/require-to-throw-message': 'off',
      yoda: 'warn',
    },
  },
  run: { cache: { scripts: true } },
  staged: {
    '*': 'vp check --fix',
    '*.{js,ts,cjs,mjs,d.cts,d.mts,jsx,tsx}': ["sh -c 'exec fallow --changed-since HEAD --type-aware --fail-on-issues'"],
  },
  test: { coverage: { exclude: ['**/test/**'] }, fsModuleCache: true, isolate: false },
});