fix: preserve live runtime deps temp dirs

scripts/stage-bundled-plugin-runtime-deps.mjs

@@ -8,6 +8,7 @@ import { resolveNpmRunner } from "./npm-runner.mjs";
 
 const TRANSIENT_TEMP_REMOVE_ERROR_CODES = new Set(["EBUSY", "ENOTEMPTY", "EPERM"]);
 const TEMP_REMOVE_RETRY_DELAYS_MS = [10, 25, 50];
+const TEMP_OWNER_FILE = "owner.json";
 
 function readJson(filePath) {
   return JSON.parse(fs.readFileSync(filePath, "utf8"));
@@ -48,13 +49,26 @@ function makeTempDir(parentDir, prefix) {
   return fs.mkdtempSync(path.join(parentDir, prefix));
 }
 
+function writeRuntimeDepsTempOwner(tempDir) {
+  writeJson(path.join(tempDir, TEMP_OWNER_FILE), {
+    pid: process.pid,
+    createdAtMs: Date.now(),
+  });
+}
+
+function makeOwnedTempDir(parentDir, prefix) {
+  const tempDir = makeTempDir(parentDir, prefix);
+  writeRuntimeDepsTempOwner(tempDir);
+  return tempDir;
+}
+
 function sanitizeTempPrefixSegment(value) {
   const normalized = value.replace(/[^A-Za-z0-9._-]+/g, "-").replace(/-+/g, "-");
   return normalized.length > 0 ? normalized : "plugin";
 }
 
 function makePluginOwnedTempDir(pluginDir, label) {
-  return makeTempDir(pluginDir, `.openclaw-runtime-deps-${label}-`);
+  return makeOwnedTempDir(pluginDir, `.openclaw-runtime-deps-${label}-`);
 }
 
 function assertPathIsNotSymlink(targetPath, label) {
@@ -84,6 +98,7 @@ function replaceDirAtomically(targetPath, sourcePath) {
   try {
     if (fs.existsSync(targetPath)) {
       fs.renameSync(targetPath, backupPath);
+      writeRuntimeDepsTempOwner(backupPath);
       movedExistingTarget = true;
     }
     fs.renameSync(sourcePath, targetPath);
@@ -100,7 +115,7 @@ function writeJsonAtomically(targetPath, value) {
   assertPathIsNotSymlink(targetPath, "write runtime deps stamp");
   const targetParentDir = path.dirname(targetPath);
   fs.mkdirSync(targetParentDir, { recursive: true });
-  const tempDir = makeTempDir(
+  const tempDir = makeOwnedTempDir(
     targetParentDir,
     `.openclaw-runtime-deps-stamp-${sanitizeTempPrefixSegment(path.basename(targetPath))}-`,
   );
@@ -954,6 +969,35 @@ function readRuntimeDepsStamp(stampPath) {
   }
 }
 
+function readRuntimeDepsTempOwner(tempDir) {
+  try {
+    const owner = readJson(path.join(tempDir, TEMP_OWNER_FILE));
+    return owner && typeof owner === "object" ? owner : null;
+  } catch {
+    return null;
+  }
+}
+
+function isLiveProcess(pid) {
+  if (!Number.isInteger(pid) || pid <= 0) {
+    return false;
+  }
+  try {
+    process.kill(pid, 0);
+    return true;
+  } catch (error) {
+    return error?.code === "EPERM";
+  }
+}
+
+function shouldRemoveRuntimeDepsTempDir(tempDir) {
+  const owner = readRuntimeDepsTempOwner(tempDir);
+  if (!owner || typeof owner.pid !== "number") {
+    return true;
+  }
+  return !isLiveProcess(owner.pid);
+}
+
 function removeStaleRuntimeDepsTempDirs(pluginDir) {
   if (!fs.existsSync(pluginDir)) {
     return;
@@ -961,6 +1005,9 @@ function removeStaleRuntimeDepsTempDirs(pluginDir) {
   for (const entry of fs.readdirSync(pluginDir, { withFileTypes: true })) {
     if (entry.name.startsWith(".openclaw-runtime-deps-")) {
       const targetPath = path.join(pluginDir, entry.name);
+      if (!shouldRemoveRuntimeDepsTempDir(targetPath)) {
+        continue;
+      }
       for (let attempt = 0; attempt <= TEMP_REMOVE_RETRY_DELAYS_MS.length; attempt += 1) {
         try {
           removePathIfExists(targetPath);
@@ -1243,7 +1290,10 @@ export function stageBundledPluginRuntimeDeps(params = {}) {
 }
 
 export const __testing = {
+  removeStaleRuntimeDepsTempDirs,
+  replaceDirAtomically,
   runNpmInstall,
+  writeRuntimeDepsTempOwner,
 };
 
 if (import.meta.url === pathToFileURL(process.argv[1] ?? "").href) {