hermes-agent/tui_gateway
Teknium cb982ad997 fix(windows): hide console-window flash on backend git/gh/wmic/bash subprocess spawns
The Windows desktop GUI runs its backend headless via pythonw.exe. Several
auxiliary subprocess sites that run inside that windowless backend spawned
console-subsystem children (git, gh, wmic, powershell, bash, rg, taskkill)
WITHOUT CREATE_NO_WINDOW, so Windows allocated a fresh conhost per call and
flashed a black window on screen — sometimes continuously (the dashboard
Projects-tree git probe alone fired ~118 spawns in 60s on startup).

The terminal tool, cron, browser, code_execution, and gateway-spawn paths
already carry windows_hide_flags(); these auxiliary probe/scan/launcher legs
were missed. Wire the existing helper into them:

- tui_gateway/git_probe.py: run_git (+ encoding=utf-8/errors=replace, fixes the
  cp950 UnicodeDecodeError on CJK paths from the same site)
- agent/coding_context.py: _git (per-turn git status/log/diff)
- agent/context_references.py: _run_git + _rg_files (@file/@ref resolution)
- hermes_cli/copilot_auth.py: gh auth token probe (auxiliary provider:auto)
- hermes_cli/gateway.py: wmic + PowerShell Get-CimInstance PID scan
- hermes_cli/main.py: wmic stale-dashboard PID scan
- gateway/status.py: taskkill /T /F force-kill

windows_hide_flags() returns 0 on POSIX, so every changed call is a no-op on
Linux/macOS (verified: real git/rg probes still work; Windows-simulated calls
all pass creationflags=CREATE_NO_WINDOW).

Scoped to the windowless-backend paths that cause the reported flashing. The
Electron updater-handoff leg (main.cjs windowsHide:false) and the
interactive-CLI banner probes (cli.py) are intentionally NOT touched here —
the former needs a Windows-tested change of its own, the latter runs in a
visible console anyway.

Tracking: #54220
Refs: #53178 #53631 #53781 #53957 #49602 #52982 #53424 #53053 #53016
2026-06-28 05:28:45 -07:00
..
__init__.py feat: new tui based on ink 2026-04-02 19:07:53 -05:00
entry.py revert(windows): roll back terminal-popup PRs #53791 #53810 #53829 (#53853) 2026-06-27 15:59:00 -07:00
event_publisher.py chore: address copilot comments 2026-04-24 12:51:04 -04:00
git_probe.py fix(windows): hide console-window flash on backend git/gh/wmic/bash subprocess spawns 2026-06-28 05:28:45 -07:00
loop_noise.py fix(tui_gateway): suppress WS peer-hangup teardown error flood (#50005) (#54126) 2026-06-28 02:35:01 -07:00
project_tree.py feat(gateway): build authoritative project tree 2026-06-25 16:40:27 -05:00
render.py tui: inherit Python-side rendering via gateway bridge 2026-04-05 18:50:41 -05:00
server.py fix(tui): use role=user for model switch marker to avoid HTTP 400 on strict providers (#48338) 2026-06-28 04:34:55 -07:00
slash_worker.py revert(windows): roll back terminal-popup PRs #53791 #53810 #53829 (#53853) 2026-06-27 15:59:00 -07:00
transport.py fix(tui-gateway): harden stdio transport against half-closed pipes + SIGTERM races (#17118) 2026-04-28 17:54:06 -05:00
ws.py fix(tui): start MCP discovery for websocket sessions 2026-06-28 04:14:12 -07:00