Files
hermes-agent/tests
Teknium 27322612b4 fix(update): route loud build/installer output to update.log instead of the terminal (#53616)
* fix(update): route loud build/installer output to update.log instead of the terminal

hermes update flooded the terminal with the full vite asset dump,
electron-builder logs, npm deprecation warnings from the desktop build,
and the cua-driver installer's 'Next steps' wall. All of that is
low-signal noise the user doesn't need on a successful update.

- Capture the desktop --build-only subprocess (vite + electron-builder)
  into ~/.hermes/logs/update.log; print a one-line status, and on
  failure surface the last 15 lines + a pointer to the full log.
- Capture the cua-driver installer's output when verbose=False (the
  hermes update refresh path); concise upgrade line is unchanged.
- Add _log_only_write() / _run_logged_subprocess() helpers that write to
  the update.log handle without echoing to the terminal.

The repo-root npm install keeps streaming (capture_output=False) — that
is the deliberate #18840 guard so a slow postinstall download doesn't
look hung. The desktop npm install is a separate Electron process with
no such progress concern and is captured.

* fix(update): persist full cua-driver installer output to update.log

The captured cua-driver installer output was only sent to logger.debug
(agent.log) on failure, so the 'Next steps' wall was lost from
update.log entirely on success. Write the full captured output straight
to the update.log handle (sys.stdout._log) on both success and failure,
matching the desktop-build capture, so update.log keeps the complete
record of everything an update did.
2026-06-27 11:43:01 -07:00
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