refactor(update): share package.json readers

src/cli/update-cli/shared.ts

@@ -5,6 +5,7 @@ import path from "node:path";
 import type { UpdateStepProgress, UpdateStepResult } from "../../infra/update-runner.js";
 import { resolveStateDir } from "../../config/paths.js";
 import { resolveOpenClawPackageRoot } from "../../infra/openclaw-root.js";
+import { readPackageName, readPackageVersion } from "../../infra/package-json.js";
 import { trimLogTail } from "../../infra/restart-sentinel.js";
 import { parseSemver } from "../../infra/runtime-guard.js";
 import { fetchNpmTagVersion } from "../../infra/update-check.js";
@@ -68,15 +69,7 @@ export function normalizeVersionTag(tag: string): string | null {
   return parseSemver(cleaned) ? cleaned : null;
 }
 
-export async function readPackageVersion(root: string): Promise<string | null> {
-  try {
-    const raw = await fs.readFile(path.join(root, "package.json"), "utf-8");
-    const parsed = JSON.parse(raw) as { version?: string };
-    return typeof parsed.version === "string" ? parsed.version : null;
-  } catch {
-    return null;
-  }
-}
+export { readPackageName, readPackageVersion };
 
 export async function resolveTargetVersion(
   tag: string,
@@ -99,17 +92,6 @@ export async function isGitCheckout(root: string): Promise<boolean> {
   }
 }
 
-export async function readPackageName(root: string): Promise<string | null> {
-  try {
-    const raw = await fs.readFile(path.join(root, "package.json"), "utf-8");
-    const parsed = JSON.parse(raw) as { name?: string };
-    const name = parsed?.name?.trim();
-    return name ? name : null;
-  } catch {
-    return null;
-  }
-}
-
 export async function isCorePackage(root: string): Promise<boolean> {
   const name = await readPackageName(root);
   return Boolean(name && CORE_PACKAGE_NAMES.has(name));