ioannis 0854640537 fix(web): cross-platform sync-assets + surface build errors on failure ... Three Windows-only bugs in the web-dashboard build path. Each is small, scoped, and verified end-to-end on Windows 11 — including under a stock cmd.exe / PowerShell console with its default cp1252 encoding. 1. `sync-assets` shells out to Unix-only commands web/package.json hard-codes `rm -rf … && cp -r …`. Neither exists on Windows cmd.exe. `hermes_cli/main.py::_build_web_ui` runs npm via subprocess (which on Windows defaults to cmd.exe), so the prebuild hook crashed before Vite ever ran and the dashboard never built. Fix: web/scripts/sync-assets.mjs — ~20 lines of Node using fs.rmSync + fs.cpSync (stdlib, Node >= 16.7). No new deps, identical behavior on POSIX and Windows. 2. Build failures were silent _build_web_ui ran both subprocess calls with capture_output=True and never relayed the captured buffers on failure. Users saw 'Web UI build failed' and nothing else — no stdout, no stderr, no hint that the real problem was 'rm is not recognized'. Fix: inner _relay() helper that decodes and prints stdout + stderr (utf-8, errors='replace') whenever a step returns non-zero. Replaces the existing stderr_tail-only relay on the build path; success path is unchanged. (stderr_tail is preserved for the stale-dist fallback branch added by #23817.) Salvaged from #13368 by @johnisag onto current main. Conflict resolution preserves main's improvements: - _run_npm_install_deterministic() (replaces bare subprocess.run for npm install) - npm-build retry-after-sleep for Windows boot-time races (#23817) - stale-dist fallback for non-interactive callers (#23817) Closes #25073, #13368.		2026-05-14 15:57:59 -07:00
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sync-assets.mjs	fix(web): cross-platform sync-assets + surface build errors on failure	2026-05-14 15:57:59 -07:00