test(cli): warm launch under each windows harness variant

Author: miguel-heygen

.github/checkfast/winlaunch.sh

@@ -1,12 +1,2 @@
-# Cold check launch on Windows: bin vs tsx, with and without --no-browser-gpu.
 set -u
-cd packages/cli
-FX=$RUNNER_TEMP/fx; mkdir -p $FX
-printf '%s' '<!doctype html><html><body><div data-composition-id="main" data-width="320" data-height="180" data-duration="1"><p style="color:#fff;background:#000">Warm</p></div><script>window.__timelines={main:{duration:()=>1,seek:()=>{},pause:()=>{}}};</script></body></html>' > $FX/index.html
-t() { label=$1; shift; s=$(node -e 'console.log(Date.now())'); CI=1 "$@" > $RUNNER_TEMP/$label.out 2> $RUNNER_TEMP/$label.err; code=$?; e=$(node -e 'console.log(Date.now())'); echo "$label exit=$code ms=$((e-s)) $(grep -o '"message": *"[^"]*"' $RUNNER_TEMP/$label.out | head -2 | tr '\n' ' ')"; tail -2 $RUNNER_TEMP/$label.err | cut -c1-300; }
-for i in 1 2; do
-t bin-gpu$i node bin/hyperframes.mjs check $FX --json --samples=1
-t bin-nogpu$i node bin/hyperframes.mjs check $FX --json --samples=1 --no-browser-gpu
-t tsx-gpu$i node --import tsx src/cli.ts check $FX --json --samples=1
-t tsx-nogpu$i node --import tsx src/cli.ts check $FX --json --samples=1 --no-browser-gpu
-done
+node .github/checkfast/winwarm.mjs

.github/checkfast/winwarm.mjs

@@ -0,0 +1,31 @@
+// Spawns the warm process under each harness variant and reports whether its Chrome finished starting.
+import { spawn, execFileSync } from "node:child_process";
+import { mkdtempSync, writeFileSync, readFileSync, existsSync } from "node:fs";
+import { tmpdir } from "node:os";
+import { join } from "node:path";
+const cli = join(process.cwd(), "packages/cli");
+const fx = mkdtempSync(join(tmpdir(), "fx-"));
+writeFileSync(join(fx, "index.html"), `<!doctype html><html><body><div data-composition-id="main" data-width="320" data-height="180" data-duration="1"><p>Warm</p></div><script>window.__timelines={main:{duration:()=>1,seek:()=>{},pause:()=>{}}};</script></body></html>`);
+const variants = [];
+for (const entry of ["tsx", "dist"]) for (const stdio of ["pipe", "ignore"]) for (const detached of [false, true]) for (const lad of ["inherit", "temp"]) variants.push({ entry, stdio, detached, lad });
+for (const v of variants) {
+  const log = join(mkdtempSync(join(tmpdir(), "dbg-")), "log.txt");
+  const env = { ...process.env, HF_WARM_DBG: log, HYPERFRAMES_NO_TELEMETRY: "1" };
+  if (v.lad === "temp") env.LOCALAPPDATA = mkdtempSync(join(tmpdir(), "lad-"));
+  const args = v.entry === "tsx" ? ["--import", "tsx", "src/warmCheck.ts"] : ["dist/warmCheck.js"];
+  const start = Date.now();
+  const child = spawn(process.execPath, [...args, "60000", fx, "--json", "--no-browser-gpu", "--samples=1"], {
+    cwd: cli, env, detached: v.detached, stdio: v.stdio === "pipe" ? ["ignore", "pipe", "pipe"] : "ignore", windowsHide: true,
+  });
+  child.stdout?.on("data", () => {}); child.stderr?.on("data", () => {});
+  let result = "timeout";
+  while (Date.now() - start < 45_000) {
+    const text = existsSync(log) ? readFileSync(log, "utf8") : "";
+    const m = text.match(/launched (true|false)/);
+    if (m) { result = m[1] === "true" ? "LAUNCHED" : "FAILED"; break; }
+    await new Promise((r) => setTimeout(r, 200));
+  }
+  console.log(JSON.stringify(v), result, `${Date.now() - start} ms`);
+  try { execFileSync("taskkill", ["/T", "/F", "/PID", String(child.pid)], { stdio: "ignore" }); } catch {}
+  await new Promise((r) => setTimeout(r, 1000));
+}