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fix: show the dev tunnel URL in the TUI instead of painting over it

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`pnpm dev --tunnel` printed its banner to stdout, and a TTY run then handed
the screen to DashboardTUI, which repainted over it. The public URL — the
entire output of the flag — was unreadable.

The wrapper forwards the URL to the dev child over the IPC channel it already
uses for the listening report, and the dashboard renders a Tunnel row in the
system panel beside URL and Token.

Capture is order-independent. cloudflared can publish before or after the TUI
is constructed, and an IPC message that arrives with no listener attached is
lost, so the URL is stored at run scope on arrival and applied by whichever
half completes second.

Watch-mode restarts reuse the tunnel (a fresh quick tunnel would hand out a
new hostname on every reload), but the new child knows nothing about it, so
the wrapper re-announces on each listening report.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
This commit is contained in:
gsxdsm
2026-08-18 21:20:34 -07:00
parent 2556083b68
commit 204772bcc3
6 changed files with 96 additions and 2 deletions
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33
scripts/dev-with-memory.mjs
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@@ -168,6 +168,22 @@ async function openDevTunnel() {
// fallback for targets that never reported one (an explicit --tunnel=PORT).
const auth = resolveDevTunnelAuth({ port, dashboardPort, args: forwardedArgs, reportedToken: token });
devTunnel = await startDevTunnel({ port, auth });
/*
FNXC:DevTunnel 2026-08-19-04:30:
Hand the URL to the dev server so its TUI can display it. The banner above goes to stdout, which a
TTY run has already given to the dashboard TUI — it paints over the banner, leaving the public URL
(the whole point of --tunnel) unreadable. Mirrors DEV_TUNNEL_READY_MESSAGE in
packages/cli/src/commands/dev-source-restart.ts; the literal is duplicated because this wrapper is
plain JS that must not load the TS build.
*/
if (devTunnel?.url && appChild?.connected) {
try {
appChild.send({ type: "fusion:dev-tunnel-ready", url: devTunnel.url, port });
} catch {
// Display-only: a failed hand-off must never take the tunnel or the dev loop down.
}
}
}
function runApp(extraArgs) {
@@ -209,7 +225,22 @@ function runApp(extraArgs) {
watchRestart.attach(tsx);
tsx.on("message", (message) => {
const listening = readDevServerListening(message);
if (listening) reportDevServerListening(listening);
if (listening) {
reportDevServerListening(listening);
/*
FNXC:DevTunnel 2026-08-19-04:30:
Re-announce an existing tunnel to a RESTARTED dev server. Watch-mode restarts reuse the tunnel
(a fresh quick tunnel would hand out a new hostname every reload), but the new child starts
with no knowledge of it, so its TUI would show no tunnel row at all after the first restart.
*/
if (devTunnel?.url && tsx.connected) {
try {
tsx.send({ type: "fusion:dev-tunnel-ready", url: devTunnel.url, port: listening.port });
} catch {
// Display-only.
}
}
}
watchRestart.onMessage(message);
});
ensureSourceWatcher();