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MuyueWorkspace/internal/api/terminal_session_windows.go
Muyue d557b8e74c
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fix(windows): native ConPTY + kernel32 metrics + agent loop cap (v0.7.6)
Three issues reported on Windows + one user-requested limit bump:

1. Dashboard CPU/RAM/Network all at 0
   handleSystemMetrics read /proc/* exclusively. Replaced with a
   platform-split:
   - metrics_unix.go (!windows): existing /proc reading code.
   - metrics_windows.go: kernel32!GetSystemTimes for CPU
     (delta of idle vs kernel+user FILETIMEs) and
     kernel32!GlobalMemoryStatusEx for memory. Network left at zero
     for now — MIB_IF_ROW2 is too version-sensitive to parse by hand.
   handlers_info.go::handleSystemMetrics reduced to one delegating
   call.

2. Terminal black screen on Windows
   creack/pty/v2 returns "unsupported" on Windows; the v0.7.1 pipe
   fallback works but pipes don't carry TTY signals, so cmd/pwsh/wsl
   go silent. Implemented native ConPTY:
   - terminal_conpty_windows.go: CreatePseudoConsole + STARTUPINFOEX
     + PROC_THREAD_ATTRIBUTE_PSEUDOCONSOLE wiring via
     windows.NewProcThreadAttributeList. CreateProcessW launches
     child with the PC attached, full ANSI / line discipline /
     resize.
   - canUseConPTY() probes once at startup (Win10 1809+ check).
   - Restructure: terminal_session.go now holds just the interface
     + ptySession + pipeSession structs. terminal_session_unix.go
     wires creack/pty. terminal_session_windows.go tries ConPTY
     first, falls back to pipeSession.

3. Agent stops after 15 tool calls
   MaxToolIterations bumped 15 → 500. Doc comment explains why the
   cap exists at all (infinite-loop safety) and that 500 is well
   above realistic usage.

- internal/version/version.go: 0.7.5 → 0.7.6
- CHANGELOG.md: v0.7.6 entry covers the three fixes
2026-04-27 14:04:41 +02:00

21 lines
600 B
Go

//go:build windows
package api
import (
"os/exec"
)
// startTermSession (windows) tries the kernel32 ConPTY API first. ConPTY
// gives a real pseudo terminal, so wsl.exe / pwsh / cmd render their
// prompt and the user can interact normally. If ConPTY is unavailable
// (Windows < 10 1809) or the call fails for any reason, we fall back to
// the line-buffered pipe session — degraded but functional for non-TUI
// commands.
func startTermSession(cmd *exec.Cmd) (termSession, error) {
if sess, err := startConptySession(cmd); err == nil {
return sess, nil
}
return startPipeSession(cmd)
}