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updateManager 强制更新无效?

我们的机制是这样,app onLaunch初始化代码,当小程序发送某几个请求的时候,去调用updateManager检查更新,模拟器测试没有问题,但是线上不生效,通过log看,显示updateManage.onCheckForUpdate未检查到更新

代码如下:

const STATUS_MAP = {
  NOTBEGIN: 0,
  PENDING: 1,
  SUCCESS: 2,
  FAILD: 3,
}
const MAX_FAIL_TIMES = 3; // 运行期间超过三次失败就不再尝试
let infos = {};
let updateManager;
let inited = false;
let status = STATUS_MAP.NOTBEGIN;
let failCount = 0;
 
const RULES = [{
  name: 'x-system',
  rule: system => infos.system.toLowerCase().indexOf(system.toLowerCase()) > -1,
}, {
  name: 'x-uid',
  rule: uids => {
    const app = getApp();
    const user = app.$user.userId;
    if (user && uids.split(',').indexOf(user.toString()) > -1) {
      return true;
    }
    return false;
  },
}];
 
function collectInfo() {
  return {
    inited,
    infos,
    status,
    failCount,
    lastUpdate: wx.getStorageSync('lastUpdate'),
  };
}
 
function logError(err) {
  const pages = getCurrentPages();
  const len = pages.length;
  if (!len) return;
  err.info = collectInfo();
  if (typeof wx.getRealtimeLogManager === 'function') {
    const logger = wx.getRealtimeLogManager();
    logger.error(err.message, err);
  }
}
 
function log(message) {
  const args = collectInfo();
  if (typeof wx.getRealtimeLogManager === 'function') {
    const logger = wx.getRealtimeLogManager();
    logger.info(message, args);
  }
  console.log(`-------${message}-------`, args);
}
 
function checkRules(headers = {}) {
  const app = getApp();
  const lastUpdate = headers['x-update'];
  if (!lastUpdate || app.lastUpdate >= lastUpdate) {
    return false;
  }
  for (let i = 0; i < RULES.length; i++) {
    const item = RULES[i];
    const header = headers[item.name];
    if (!header) {
      continue;
    }
    if (header instanceof Array && header.length === 0) {
      continue;
    }
    if (typeof header === 'object' && Object.keys(header).length === 0) {
      continue;
    }
    if (!item.rule(headers[item.name])) {
      return false;
    }
  }
  return true
}
 
function checkForUpdate(timestamp) {
  const app = getApp();
  if (status === STATUS_MAP.PENDING) return;
  status = STATUS_MAP.PENDING;
  updateManager = wx.getUpdateManager();
  updateManager.onCheckForUpdate(res => {
    if (res && res.hasUpdate) {
      updateManager.onUpdateReady(() => {
        wx.showModal({
          title: '更新提示',
          content: '系统升级,请重启获取最新版本',
          showCancel: false,
          success(modalRes) {
            if (modalRes.confirm) {
              app.lastUpdate = timestamp;
              wx.setStorageSync('lastUpdate', timestamp);
              // status = STATUS_MAP.SUCCESS; 不能改变状态,否则会再次检查强制更新逻辑
              log('force-update update success');
              setTimeout(() => {
                updateManager.applyUpdate();
              }, 2000);
            }
          },
        })
      });
      updateManager.onUpdateFailed(() => {
        status = STATUS_MAP.FAILD;
        failCount += 1;
        logError({
          message: 'force-update update fail',
        });
      });
    } else {
      status = STATUS_MAP.SUCCESS;
      app.lastUpdate = timestamp;
      wx.setStorageSync('lastUpdate', timestamp);
      log('force-update check for no update');
    }
  });
}
 
module.exports = {
  init(ctx) {
    if (inited) return;
    try {
      ctx.lastUpdate = ctx.store.get('lastUpdate') || 0;
      status = STATUS_MAP.NOTBEGIN;
      const { system, version: wechat, SDKVersion: lib } = ctx.system();
      infos = {
        system,
        wechat,
        lib,
      };
      inited = true;
    } catch (error) {
      setTimeout(() => {
        logError({
          message: 'force-update init fail',
          error,
        });
      }, 2000);
    }
  },
  checkForceUpdate(headers) {
    try {
      if (status === STATUS_MAP.PENDING) {
        return;
      }
      if (inited && failCount < MAX_FAIL_TIMES && headers['x-update'] && checkRules(headers)) {
        // 必须有更新时间,必须已经初始化过,失败次数未超过三次
        checkForUpdate(headers['x-update']);
      }
    } catch (error) {
      if (status === STATUS_MAP.PENDING) {
        failCount += 1;
        status = STATUS_MAP.FAILD;
      }
      logError({
        message: 'force-update check for update exception',
        error,
      });
    }
  },
}


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1 个回答

  • 老张
    老张
    2019-12-11

    这真的仅仅是版本更新的代码?为啥我们的只有3行代码?

    2019-12-11
    赞同
    回复 2
    • 子非鱼
      子非鱼
      2019-12-11
      我写的复杂么。。。。。。。
      2019-12-11
      回复
    • 霜原
      霜原
      2019-12-25回复子非鱼
      版本更新的代码只有checkForUpdate这个函数,其他的和更新没什么关系吧
      2019-12-25
      回复
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