mirror of
https://github.com/NousResearch/hermes-agent.git
synced 2026-06-02 07:11:49 +00:00
Copilot caught an important runtime parity gap on PR #27489: the fix imported the npm `wrap-ansi` package directly, but Ink's `<Text wrap="wrap">` uses a runtime-selecting shim (`ui-tui/packages/hermes-ink/src/ink/wrapAnsi.ts`) that prefers `Bun.wrapAnsi` when running under Bun and falls back to the npm package elsewhere. So under Bun, Ink would render via `Bun.wrapAnsi` while `cursorLayout` would compute breaks via the npm package — any disagreement reintroduces the exact cursor-drift symptom the PR is meant to eliminate. Fix: - Export `wrapAnsi` from `@hermes/ink` (`packages/hermes-ink/src/entry-exports.ts` and `packages/hermes-ink/index.d.ts`) so the shim is the public surface. - Switch `ui-tui/src/lib/inputMetrics.ts` from `import wrapAnsi from 'wrap-ansi'` to `import { wrapAnsi } from '@hermes/ink'`. Both renderer (Ink) and cursor layout now traverse the same shim, so they share the runtime-selected implementation by construction. - Same swap in `textInputWrap.test.ts` and `cursorDriftRegression.test.ts` — tests now assert parity through the shim, which means under Bun they actually exercise Bun's implementation instead of asserting a tautology against the npm package. - Drop the direct `"wrap-ansi": "^9.0.0"` from `ui-tui/package.json`. `@hermes/ink` (which IS a declared dep) pulls wrap-ansi in transitively — that's not a phantom dep because the import path goes through `@hermes/ink`'s public exports, not through a hoisting accident. Verified: 791/791 vitest tests pass. `@hermes/ink` rebuilt (`dist/entry-exports.js` includes `wrapAnsi` export). TUI bundle rebuilt clean. |
||
|---|---|---|
| .. | ||
| hermes-ink | ||