import { spawnSync } from "node:child_process";import { fileURLToPath } from "node:url";import { parseCiShardRequest, planTargetShards } from "./ci-shard"; const request = parseCiShardRequest(process.argv.slice(2));if (!request.ok) {  console.error(request.error.message);  process.exit(2);} const e2eRoot = fileURLToPath(new URL("..", import.meta.url));const plan = await planTargetShards(request.value.target, e2eRoot);const assignment = plan[request.value.index - 1];if (assignment === undefined || assignment.files.length === 0) {  throw new Error("configured shard has no test files");} console.log(  `Running ${request.value.target} shard ${request.value.index}/${request.value.count}: ` +    `${assignment.files.length} files, estimated ${Math.round(assignment.estimatedDurationMs / 1000)}s`,);for (const file of assignment.files) console.log(`  ${file}`); const child = spawnSync(  process.execPath,  ["x", "vitest", "run", "--project", request.value.target, ...assignment.files],  {    cwd: e2eRoot,    env: process.env,    stdio: "inherit",  },);if (child.error !== undefined) throw child.error;if (child.signal !== null) {  throw new Error(`Vitest shard terminated by signal ${child.signal}`);}process.exit(child.status ?? 1);