biome.jsonc

{
  "$schema": "https://biomejs.dev/schemas/2.4.16/schema.json",
  // Biome's only job in this repo (for now) is to ENFORCE the two JSR
  // import conventions the source was aligned to in PRs #1792 / #1800 /
  // #1803, so new code can't silently drift back:
  //   - useImportExtensions   → explicit `.ts` / `.tsx` on relative imports
  //   - useNodejsImportProtocol → `node:` prefix on Node built-ins
  // Everything else (formatter, the rest of the recommended ruleset) is
  // intentionally left off — this is a lint *gate*, not a formatting pass.
  "formatter": { "enabled": false },
  "assist": { "enabled": false },
  // Scope: the TypeScript SOURCES that JSR actually publishes.
  //   - `packages/*/src/**` only — never config, scripts, or built output.
  //   - cli / create-barefootjs are npm-only (never published to JSR), so
  //     the JSR import rules don't apply to them.
  //   - adapter-tests and compat are `private` + in `.changeset/config.json`'s
  //     ignore list → never published; their `src` is test/tooling scaffolding.
  //   - `__tests__` and `*.d.ts` are outside JSR's published surface
  //     (`deno check` only reaches exported entries + their non-test, non
  //     -`.d.ts` imports — see scripts/jsr-publish.ts), so the convention
  //     never applied to them and they are not gated here.
  "files": {
    "includes": [
      "packages/*/src/**/*.ts",
      "packages/*/src/**/*.tsx",
      "!packages/cli/**",
      "!packages/create-barefootjs/**",
      "!packages/adapter-tests/**",
      "!packages/compat/**",
      "!**/__tests__/**",
      "!**/*.d.ts"
    ]
  },
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": false,
      "correctness": {
        "useImportExtensions": "error"
      },
      "style": {
        "useNodejsImportProtocol": "error"
      }
    }
  },
  "overrides": [
    {
      // Package self-references (`@barefootjs/client/reactive`, resolved
      // through the package `exports` map / the JSR import map that
      // jsr-publish.ts generates) are deliberately extension-less and
      // `deno check` accepts them as-is. Biome's resolver follows the
      // workspace symlink to the real `src/*.ts` and false-positives,
      // wanting a `.ts` that would actually BREAK the JSR/exports
      // resolution. There's no per-specifier opt-out, so disable the
      // extension rule for just the files carrying such self-imports.
      // (`useNodejsImportProtocol` stays on.)
      "includes": [
        "packages/client/src/index.ts",
        "packages/client/src/runtime/index.ts",
        "packages/client/src/runtime/insert.ts",
        "packages/client/src/runtime/hydrate.ts",
        "packages/client/src/runtime/map-array.ts",
        "packages/client/src/runtime/component.ts",
        "packages/client/src/runtime/apply-rest-attrs.ts",
        "packages/client/src/runtime/dynamic-text.ts"
      ],
      "linter": {
        "rules": {
          "correctness": {
            "useImportExtensions": "off"
          }
        }
      }
    }
  ]
}