fix(infra): keep restart log tails UTF-16 safe

zhangguiping-xydt · steipete · commit 18c567b3eb50 · 2026-07-10T22:09:47.000+01:00
diff --git a/src/infra/restart-sentinel.test.ts b/src/infra/restart-sentinel.test.ts
@@ -341,6 +341,10 @@ describe("restart sentinel", () => {
     expect(trimmed?.startsWith("…")).toBe(true);
   });
 
+  it("keeps trimmed log tails UTF-16 safe", () => {
+    expect(trimLogTail("prefix🤖tail", 5)).toBe("…tail");
+  });
+
   it("formats restart messages without volatile timestamps", () => {
     const payloadA = {
       kind: "restart" as const,
diff --git a/src/infra/restart-sentinel.ts b/src/infra/restart-sentinel.ts
@@ -2,6 +2,7 @@
 import { readFile, rm } from "node:fs/promises";
 import path from "node:path";
 import { isRecord as isPlainRecord } from "@openclaw/normalization-core/record-coerce";
+import { sliceUtf16Safe } from "@openclaw/normalization-core/utf16-slice";
 import { formatCliCommand } from "../cli/command-format.js";
 import { resolveStateDir } from "../config/paths.js";
 import type { DB as OpenClawStateKyselyDatabase } from "../state/openclaw-state-db.generated.js";
@@ -372,5 +373,5 @@ export function trimLogTail(input?: string | null, maxChars = 8000) {
   if (text.length <= maxChars) {
     return text;
   }
-  return `…${text.slice(text.length - maxChars)}`;
+  return `…${sliceUtf16Safe(text, text.length - maxChars)}`;
 }

Original file line number	Diff line number	Diff line change
`@@ -2,6 +2,7 @@`
`2`	`2`	`import { readFile, rm } from "node:fs/promises";`
`3`	`3`	`import path from "node:path";`
`4`	`4`	`import { isRecord as isPlainRecord } from "@openclaw/normalization-core/record-coerce";`
	`5`	`+import { sliceUtf16Safe } from "@openclaw/normalization-core/utf16-slice";`
`5`	`6`	`import { formatCliCommand } from "../cli/command-format.js";`
`6`	`7`	`import { resolveStateDir } from "../config/paths.js";`
`7`	`8`	`import type { DB as OpenClawStateKyselyDatabase } from "../state/openclaw-state-db.generated.js";`
`@@ -372,5 +373,5 @@ export function trimLogTail(input?: string \| null, maxChars = 8000) {`
`372`	`373`	`if (text.length <= maxChars) {`
`373`	`374`	`return text;`
`374`	`375`	`}`
`375`		- return `…${text.slice(text.length - maxChars)}`;
	`376`	+ return `…${sliceUtf16Safe(text, text.length - maxChars)}`;
`376`	`377`	`}`