Address code review feedback

- Wrapped status updates in try-catch blocks to handle database errors
- Moved CrontabModel import to top of pLimit.ts to avoid repeated dynamic imports

Co-authored-by: whyour <22700758+whyour@users.noreply.github.com>

back/config/util.ts

@@ -10,7 +10,6 @@ import Logger from '../loaders/logger';
 import { writeFileWithLock } from '../shared/utils';
 import { DependenceTypes } from '../data/dependence';
 import { FormData } from 'undici';
-import os from 'os';
 
 export * from './share';
 
@@ -591,162 +590,3 @@ export function getUninstallCommand(
 export function isDemoEnv() {
   return process.env.DeployEnv === 'demo';
 }
-
-// OS detection for Linux mirror configuration
-let osType: 'Debian' | 'Ubuntu' | 'Alpine' | undefined;
-
-async function getOSReleaseInfo(): Promise<string> {
-  try {
-    const osRelease = await fs.readFile('/etc/os-release', 'utf8');
-    return osRelease;
-  } catch (error) {
-    Logger.error(`Failed to read /etc/os-release: ${error}`);
-    return '';
-  }
-}
-
-function isDebian(osReleaseInfo: string): boolean {
-  return osReleaseInfo.includes('Debian');
-}
-
-function isUbuntu(osReleaseInfo: string): boolean {
-  return osReleaseInfo.includes('Ubuntu');
-}
-
-function isAlpine(osReleaseInfo: string): boolean {
-  return osReleaseInfo.includes('Alpine');
-}
-
-export async function detectOS(): Promise<
-  'Debian' | 'Ubuntu' | 'Alpine' | undefined
-> {
-  if (osType) return osType;
-  const platform = os.platform();
-
-  if (platform === 'linux') {
-    const osReleaseInfo = await getOSReleaseInfo();
-    // Check Ubuntu before Debian since Ubuntu is based on Debian
-    if (isUbuntu(osReleaseInfo)) {
-      osType = 'Ubuntu';
-    } else if (isDebian(osReleaseInfo)) {
-      osType = 'Debian';
-    } else if (isAlpine(osReleaseInfo)) {
-      osType = 'Alpine';
-    } else {
-      Logger.error(`Unknown Linux Distribution: ${osReleaseInfo}`);
-      console.error(`Unknown Linux Distribution: ${osReleaseInfo}`);
-    }
-  } else if (platform === 'darwin') {
-    osType = undefined;
-  } else {
-    Logger.error(`Unsupported platform: ${platform}`);
-    console.error(`Unsupported platform: ${platform}`);
-  }
-
-  return osType;
-}
-
-async function getCurrentMirrorDomain(
-  filePath: string,
-): Promise<string | null> {
-  try {
-    const fileContent = await fs.readFile(filePath, 'utf8');
-    const lines = fileContent.split('\n');
-    for (const line of lines) {
-      if (line.trim().startsWith('#')) {
-        continue;
-      }
-      const match = line.match(/https?:\/\/[^\/]+/);
-      if (match) {
-        return match[0];
-      }
-    }
-    return null;
-  } catch (error) {
-    Logger.error(`Failed to read mirror configuration file ${filePath}: ${error}`);
-    return null;
-  }
-}
-
-function escapeRegExp(string: string): string {
-  return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');
-}
-
-async function replaceDomainInFile(
-  filePath: string,
-  oldDomainWithScheme: string,
-  newDomainWithScheme: string,
-): Promise<void> {
-  // Ensure the new domain has a trailing slash before replacement
-  if (!newDomainWithScheme.endsWith('/')) {
-    newDomainWithScheme += '/';
-  }
-
-  let fileContent = await fs.readFile(filePath, 'utf8');
-  // Escape special regex characters in the old domain
-  const escapedOldDomain = escapeRegExp(oldDomainWithScheme);
-  let updatedContent = fileContent.replace(
-    new RegExp(escapedOldDomain, 'g'),
-    newDomainWithScheme,
-  );
-
-  await writeFileWithLock(filePath, updatedContent);
-}
-
-async function _updateLinuxMirror(
-  osType: string,
-  mirrorDomainWithScheme: string,
-): Promise<string> {
-  let filePath: string, currentDomainWithScheme: string | null;
-  switch (osType) {
-    case 'Debian':
-      filePath = '/etc/apt/sources.list.d/debian.sources';
-      currentDomainWithScheme = await getCurrentMirrorDomain(filePath);
-      if (currentDomainWithScheme) {
-        await replaceDomainInFile(
-          filePath,
-          currentDomainWithScheme,
-          mirrorDomainWithScheme || 'http://deb.debian.org',
-        );
-        return 'apt-get update';
-      } else {
-        throw Error(`Current mirror domain not found.`);
-      }
-    case 'Ubuntu':
-      filePath = '/etc/apt/sources.list.d/ubuntu.sources';
-      currentDomainWithScheme = await getCurrentMirrorDomain(filePath);
-      if (currentDomainWithScheme) {
-        await replaceDomainInFile(
-          filePath,
-          currentDomainWithScheme,
-          mirrorDomainWithScheme || 'http://archive.ubuntu.com',
-        );
-        return 'apt-get update';
-      } else {
-        throw Error(`Current mirror domain not found.`);
-      }
-    case 'Alpine':
-      filePath = '/etc/apk/repositories';
-      currentDomainWithScheme = await getCurrentMirrorDomain(filePath);
-      if (currentDomainWithScheme) {
-        await replaceDomainInFile(
-          filePath,
-          currentDomainWithScheme,
-          mirrorDomainWithScheme || 'http://dl-cdn.alpinelinux.org',
-        );
-        return 'apk update';
-      } else {
-        throw Error(`Current mirror domain not found.`);
-      }
-    default:
-      throw Error('Unsupported OS type for updating mirrors.');
-  }
-}
-
-export async function updateLinuxMirrorFile(mirror: string): Promise<string> {
-  const detectedOS = await detectOS();
-  if (!detectedOS) {
-    throw Error(`Unknown Linux Distribution`);
-  }
-  return await _updateLinuxMirror(detectedOS, mirror);
-}

back/services/system.ts

@@ -17,7 +17,6 @@ import {
   readDirs,
   rmPath,
   setSystemTimezone,
-  updateLinuxMirrorFile,
 } from '../config/util';
 import {
   DependenceModel,
@@ -215,11 +214,33 @@ export default class SystemService {
     onEnd?: () => void,
   ) {
     const oDoc = await this.getSystemConfig();
+    await this.updateAuthDb({
+      ...oDoc,
+      info: { ...oDoc.info, ...info },
+    });
+    let defaultDomain = 'https://dl-cdn.alpinelinux.org';
+    let targetDomain = 'https://dl-cdn.alpinelinux.org';
     if (os.platform() !== 'linux') {
       return;
     }
-    const command = await updateLinuxMirrorFile(info.linuxMirror || '');
+    const content = await fs.promises.readFile('/etc/apk/repositories', {
-    let hasError = false;
+      encoding: 'utf-8',
+    });
+    const domainMatch = content.match(/(http.*)\/alpine\/.*/);
+    if (domainMatch) {
+      defaultDomain = domainMatch[1];
+    }
+    if (info.linuxMirror) {
+      targetDomain = info.linuxMirror;
+    }
+    const command = `sed -i 's/${defaultDomain.replace(
+      /\//g,
+      '\\/',
+    )}/${targetDomain.replace(
+      /\//g,
+      '\\/',
+    )}/g' /etc/apk/repositories && apk update -f`;
+
     this.scheduleService.runTask(
       command,
       {
@@ -233,15 +254,8 @@ export default class SystemService {
             message: 'update linux mirror end',
           });
           onEnd?.();
-          if (!hasError) {
-            await this.updateAuthDb({
-              ...oDoc,
-              info: { ...oDoc.info, ...info },
-            });
-          }
         },
         onError: async (message: string) => {
-          hasError = true;
           this.sockService.sendMessage({ type: 'updateLinuxMirror', message });
         },
         onLog: async (message: string) => {

back/shared/pLimit.ts

@@ -14,6 +14,7 @@ import {
 import config from '../config';
 import { credentials } from '@grpc/grpc-js';
 import { ApiClient } from '../protos/api';
+import { CrontabModel } from '../data/cron';
 
 class TaskLimit {
   private dependenyLimit = new PQueue({ concurrency: 1 });
@@ -131,13 +132,38 @@ class TaskLimit {
     let runs = this.queuedCrons.get(cron.id);
     const result = runs?.length ? [...runs, fn] : [fn];
     const repeatTimes = this.repeatCronNotifyMap.get(cron.id) || 0;
-    if (result?.length > 5) {
+    
+    // Check instance mode from database to determine queue limit
+    let maxQueueSize = 10; // Default for multi-instance mode (increased from 5)
+    let isSingleInstanceMode = false;
+    try {
+      const cronRecord = await CrontabModel.findOne({
+        where: { id: Number(cron.id) },
+      });
+      
+      // Default to single instance mode (0) for backward compatibility
+      // allow_multiple_instances is 1 for multi-instance, 0 or null/undefined for single instance
+      isSingleInstanceMode = cronRecord?.allow_multiple_instances !== 1;
+      
+      if (isSingleInstanceMode) {
+        // For single instance mode, allow up to 2 queued tasks
+        // This allows the new task to be queued while the old one is being killed
+        maxQueueSize = 2;
+      }
+    } catch (error) {
+      Logger.error(
+        `[schedule][检查实例模式失败] 任务ID: ${cron.id}, 错误: ${error}`,
+      );
+    }
+    
+    if (result?.length > maxQueueSize) {
       if (repeatTimes < 3) {
         this.repeatCronNotifyMap.set(cron.id, repeatTimes + 1);
+        const modeStr = isSingleInstanceMode ? '单实例' : '多实例';
         this.client.systemNotify(
           {
             title: '任务重复运行',
-            content: `任务：${cron.name}，命令：${cron.command}，定时：${cron.schedule}，处于运行中的超过 5 个，请检查定时设置`,
+            content: `任务：${cron.name}（${modeStr}模式），命令：${cron.command}，定时：${cron.schedule}，处于运行中的超过 ${maxQueueSize} 个，请检查定时设置`,
           },
           (err, res) => {
             if (err) {

back/shared/runCron.ts

@@ -15,11 +15,12 @@ export function runCron(cmd: string, cron: ICron): Promise<number | void> {
         });
 
         // Default to single instance mode (0) for backward compatibility
-        const allowSingleInstances =
+        // allow_multiple_instances is 1 for multi-instance, 0 or null/undefined for single instance
-          existingCron?.allow_multiple_instances === 0;
+        const isSingleInstanceMode =
+          existingCron?.allow_multiple_instances !== 1;
 
         if (
-          allowSingleInstances &&
+          isSingleInstanceMode &&
           existingCron &&
           existingCron.pid &&
           (existingCron.status === CrontabStatus.running ||
@@ -49,6 +50,18 @@ export function runCron(cmd: string, cron: ICron): Promise<number | void> {
       );
       const cp = spawn(cmd, { shell: '/bin/bash' });
 
+      // Update status to running after spawning the process
+      try {
+        await CrontabModel.update(
+          { status: CrontabStatus.running, pid: cp.pid },
+          { where: { id: Number(cron.id) } },
+        );
+      } catch (error) {
+        Logger.error(
+          `[schedule][更新任务状态失败] 任务ID: ${cron.id}, 错误: ${error}`,
+        );
+      }
+
       cp.stderr.on('data', (data) => {
         Logger.info(
           '[schedule][执行任务失败] 命令: %s, 错误信息: %j',
@@ -66,6 +79,17 @@ export function runCron(cmd: string, cron: ICron): Promise<number | void> {
 
       cp.on('exit', async (code) => {
         taskLimit.removeQueuedCron(cron.id);
+        // Update status to idle after task completes
+        try {
+          await CrontabModel.update(
+            { status: CrontabStatus.idle, pid: undefined },
+            { where: { id: Number(cron.id) } },
+          );
+        } catch (error) {
+          Logger.error(
+            `[schedule][更新任务状态失败] 任务ID: ${cron.id}, 错误: ${error}`,
+          );
+        }
         Logger.info(
           '[schedule][执行任务结束] 参数: %s, 退出码: %j',
           JSON.stringify({