Function OpenDebugLog

internal/tui/debuglog.go:30–44

OpenDebugLog truncates /log.txt and opens it for writing. On failure it reports once on stderr and disables logging: the log must never block the TUI from starting. 0o600 because the log captures every prompt: /hamrpass and bash args can carry secrets even past the slash redaction below.

(dir string)

// can carry secrets even past the slash redaction below. Owner-only is the
// only honest answer.
func OpenDebugLog(dir string) {
	if dir == "" {
		return
	}
	path := filepath.Join(dir, "log.txt")
	f, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0o600)
	if err != nil {
		fmt.Fprintln(os.Stderr, "⚠ debuglog:", err)
		return
	}
	dbgMu.Lock()
	dbgFile = f
	dbgMu.Unlock()
	dbgWritef("session", "codehamr started · project=%s", dir)
}

// CloseDebugLog flushes and closes the log. Idempotent.
func CloseDebugLog() {