feat(host): daemon mode, structured logging, instance management#6
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feat(host): daemon mode, structured logging, instance management#6
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Major refactor of jaunt-host for production-ready operation: - **Structured logging**: Replace all eprintln! with tracing macros at appropriate levels (info/warn/error/debug/trace). File logging for daemon mode, stderr for foreground. - **DHT noise filtering**: Track known jaunt clients (peers that sent RPC or completed pairing). Log client connections at INFO, DHT routing peers at TRACE. Dial errors at DEBUG. - **Instance management**: PID file at $XDG_RUNTIME_DIR/jaunt-host.pid. Prevents multiple instances. `jaunt-host stop` sends SIGTERM. `jaunt-host status` checks if daemon is running. - **Graceful shutdown**: Handle SIGTERM/SIGINT in the event loop via tokio::select!. Clean up PID file on exit. - **Daemon mode**: `jaunt-host serve -d` forks to background via nix::unistd::daemon(). Logs to ~/.local/share/jaunt/jaunt-host.log. - **Serve/pair separation**: `serve` no longer generates PINs or starts the pairing HTTP server — it only accepts paired devices. `pair` is the interactive command for adding new devices. - **systemd service file**: packaging/systemd/jaunt-host.service
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Summary
Major refactor of jaunt-host for production-ready operation. Addresses all 5 problems from the daemon UX investigation.
New features
jaunt-host serve -d— daemon mode (forks to background, logs to~/.local/share/jaunt/jaunt-host.log)jaunt-host stop— cleanly stop a running daemon (SIGTERM → 5s wait → SIGKILL)jaunt-host status— check if daemon is runningjaunt-host pair— interactive pairing (generates PIN, starts HTTP server, waits for device, exits)$XDG_RUNTIME_DIR/jaunt-host.pid)packaging/systemd/jaunt-host.serviceBehavioral changes
serveno longer generates PINs or starts the pairing HTTP server. Usepairto add devices first.eprintln!replaced withtracingmacros (info!/warn!/debug!/trace!). Configurable viaRUST_LOGenv var.Workflow
Test plan
cargo fmt --checkpassescargo clippy --workspace --all-targets -- -D warningspassescargo test --workspace— 25 tests passjaunt-host --helpshows all 5 subcommandsjaunt-host status/jaunt-host stopwork correctly