YeonGyu-Kim
34 lines
986 B
TypeScript
34 lines
986 B
TypeScript
import { appendFileSync, renameSync, statSync } from "node:fs";
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import { tmpdir } from "node:os";
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import { join } from "node:path";
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type LogFieldValue = boolean | number | string | null;
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const LOG_FILE_NAME = "omo-ast-grep-mcp.log";
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const MAX_LOG_BYTES = 5 * 1024 * 1024;
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export function mcpLifecycleLogPath(): string {
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return join(tmpdir(), LOG_FILE_NAME);
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}
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export function writeMcpLifecycleLog(event: string, fields: Record<string, LogFieldValue> = {}): void {
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const path = mcpLifecycleLogPath();
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try {
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rotateLogIfNeeded(path);
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appendFileSync(path, `${JSON.stringify({ ts: new Date().toISOString(), event, pid: process.pid, ppid: process.ppid, ...fields })}\n`);
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} catch (error) {
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if (error instanceof Error) return;
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return;
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}
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}
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function rotateLogIfNeeded(path: string): void {
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try {
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if (statSync(path).size < MAX_LOG_BYTES) return;
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renameSync(path, `${path}.1`);
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} catch (error) {
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if (error instanceof Error) return;
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return;
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}
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}
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