feat: log output to file (#338)

* feat: log output to file

* fix type

* fix: logs path use current work dir

* feat: add cleanLog function to sanitize log strings

* fix replace

* remove rplace datetime in nestjs log

packages/terre2/src/logger.ts

@@ -0,0 +1,55 @@
+import * as fs from 'fs';
+import * as path from 'path';
+
+const logsDir = path.join(process.cwd(), 'logs');
+const logFile = path.join(logsDir, 'log.txt');
+const logFileMaxSize = 1024 * 1024;
+
+// 确保日志目录存在
+if (!fs.existsSync(logsDir)) {
+  try {
+    fs.mkdirSync(logsDir);
+  } catch (error) {
+    console.error('Error creating logs directory:', error);
+  }
+}
+
+const checkLogFileSize = (filePath: string, maxSize: number) => {
+  fs.stat(filePath, (err, stats) => {
+    if (!err && stats.size > maxSize) {
+      const oldLogFile = filePath.replace('log.txt', 'log.old.txt');
+      fs.rename(filePath, oldLogFile, (renameErr) => {
+        if (renameErr) {
+          console.error('Error renaming log file:', renameErr);
+        }
+      });
+    }
+  });
+};
+
+// 替换特殊字符
+const cleanLog = (log: string) => log.replace(/(\x1B\[[0-9;]*m)/g, '');
+
+// 在启动时检查日志文件大小
+checkLogFileSize(logFile, logFileMaxSize);
+
+const logStream = fs.createWriteStream(logFile, { flags: 'a' });
+
+const originalStdoutWrite = process.stdout.write;
+const originalStderrWrite = process.stderr.write;
+
+process.stdout.write = function (...args: any[]) {
+  try {
+    logStream.write(`${new Date().toISOString()} [LOG]: ${cleanLog(args[0])}`);
+  } catch (_) {}
+  return originalStdoutWrite.apply(process.stdout, args);
+};
+
+process.stderr.write = function (...args: any[]) {
+  try {
+    logStream.write(
+      `${new Date().toISOString()} [ERROR]: ${cleanLog(args[0])}`,
+    );
+  } catch (_) {}
+  return originalStderrWrite.apply(process.stderr, args);
+};

packages/terre2/src/main.ts

@@ -6,6 +6,7 @@ import { urlencoded, json } from 'express';
 import { SwaggerModule, DocumentBuilder } from '@nestjs/swagger';
 import { env } from 'process';
 import { WsAdapter } from '@nestjs/platform-ws';
+import './logger';
 
 let WEBGAL_PORT = 3000; // default port
 export const version_number = `4.5.10`;