run_preview.sh

#!/usr/bin/env zsh
emulate -L zsh
set -euo pipefail

if [[ ! -d ".venv" ]]; then
  print -u2 "Missing .venv in $(pwd). Run: uv sync"
  exit 1
fi

if [[ ! -d "../.razorcore" ]]; then
  print -u2 "Missing ../.razorcore. This app requires a sibling .razorcore worktree."
  exit 1
fi

if ! uv run python - <<'PY' >/dev/null 2>&1
import importlib
importlib.import_module("PySide6")
importlib.import_module("razorcore")
PY
then
  print -u2 "Dependencies missing in .venv; running uv sync..."
  uv sync
fi

# Start a minimal HTTP status server so preview_start can detect readiness.
# preview_start checks the configured port; without a listener it sends SIGTERM.
STATUS_PORT="${PORT:-3001}"
uv run python -c "
import http.server, socketserver, sys, threading
class H(http.server.BaseHTTPRequestHandler):
    def do_GET(self):
        self.send_response(200)
        self.end_headers()
        self.wfile.write(b'L!bra running')
    def log_message(self, *_): pass
socketserver.TCPServer.allow_reuse_address = True
httpd = socketserver.TCPServer(('127.0.0.1', int(sys.argv[1])), H)
threading.Thread(target=httpd.serve_forever, daemon=True).start()
import time; time.sleep(86400)
" "$STATUS_PORT" &
STATUS_PID=$!

# Clean up status server when this script exits for any reason.
cleanup() { kill $STATUS_PID 2>/dev/null || true; }
trap cleanup EXIT TERM INT

# Launch the GUI app (no exec — keep shell alive so trap fires on exit).
env PYTHONPATH="src${PYTHONPATH:+:$PYTHONPATH}" uv run -- python -m Libra.main "$@"