fix(scripts): guard core test tsgo in sparse worktrees

scripts/run-tsgo.mjs

@@ -6,6 +6,7 @@ import {
   applyLocalTsgoPolicy,
   shouldAcquireLocalHeavyCheckLockForTsgo,
 } from "./lib/local-heavy-check-runtime.mjs";
+import { getSparseTsgoGuardError } from "./lib/tsgo-sparse-guard.mjs";
 
 const { args: finalArgs, env } = applyLocalTsgoPolicy(process.argv.slice(2), process.env);
 
@@ -14,26 +15,33 @@ const tsBuildInfoFile = readFlagValue(finalArgs, "--tsBuildInfoFile");
 if (tsBuildInfoFile) {
   fs.mkdirSync(path.dirname(path.resolve(tsBuildInfoFile)), { recursive: true });
 }
-const releaseLock = shouldAcquireLocalHeavyCheckLockForTsgo(finalArgs, env)
-  ? acquireLocalHeavyCheckLockSync({
-      cwd: process.cwd(),
-      env,
-      toolName: "tsgo",
-    })
-  : () => {};
+const sparseGuardError = getSparseTsgoGuardError(finalArgs, { cwd: process.cwd() });
+const releaseLock =
+  sparseGuardError || !shouldAcquireLocalHeavyCheckLockForTsgo(finalArgs, env)
+    ? () => {}
+    : acquireLocalHeavyCheckLockSync({
+        cwd: process.cwd(),
+        env,
+        toolName: "tsgo",
+      });
 
 try {
-  const result = spawnSync(tsgoPath, finalArgs, {
-    stdio: "inherit",
-    env,
-    shell: process.platform === "win32",
-  });
+  if (sparseGuardError) {
+    console.error(sparseGuardError);
+    process.exitCode = 1;
+  } else {
+    const result = spawnSync(tsgoPath, finalArgs, {
+      stdio: "inherit",
+      env,
+      shell: process.platform === "win32",
+    });
 
-  if (result.error) {
-    throw result.error;
+    if (result.error) {
+      throw result.error;
+    }
+
+    process.exitCode = result.status ?? 1;
   }
-
-  process.exitCode = result.status ?? 1;
 } finally {
   releaseLock();
 }