127 lines
3.4 KiB
C++
127 lines
3.4 KiB
C++
#include "systembackupproxy.h"
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#include <QStorageInfo>
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#include <QDebug>
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#include "../common/utils.h"
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#include "../common/mydusizetool.h"
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#include "mymountproxy.h"
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#include "parsebackuplist.h"
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IMPLEMENT_DYNCREATE(SystemBackupProxy)
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SystemBackupProxy::SystemBackupProxy()
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{}
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SystemBackupProxy::~SystemBackupProxy()
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{}
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/**
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* @brief 环境检测
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*/
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void SystemBackupProxy::checkEnvEx()
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{
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qDebug() << "SystemBackupProxy::checkEnv invoke begin";
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// 1、检查/backup分区是否挂载上(不管是本地磁盘还是u盘设备，都得保证/backup挂载上); 若没挂载，挂载
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MyMountProxy mountProxy;
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if ( MyMountProxy::MountResult::MOUNTED != mountProxy.mountBackupPartition() ) {
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emit checkResult(int(BackupResult::BACKUP_PARTITION_MOUNT_FAIL));
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return ;
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}
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// 2、检测备份是否增量备份
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bool bInc = checkIsIncBackup();
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m_backupWrapper.m_bIncrement = bInc;
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// 3、检测空间是否满足备份
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checkFreeCapacity(bInc);
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qDebug() << "SystemBackupProxy::checkEnv invoke end";
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}
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void SystemBackupProxy::doWorkEx()
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{}
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void SystemBackupProxy::cancelEx()
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{}
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/**
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* @brief 校验是否增量备份
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* @return true,增量备份； false，全量备份
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*/
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bool SystemBackupProxy::checkIsIncBackup()
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{
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QString backupPath;
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if (m_backupWrapper.m_uuid.isEmpty()) {
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QString xmlPath(Utils::getSysRootPath() + BACKUP_XML_PATH);
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xmlPath.replace("//", "/");
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ParseBackupList parser(xmlPath);
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ParseBackupList::BackupPoint point = parser.getLastSysBackupPoint();
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if (point.m_uuid.isEmpty())
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return false;
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backupPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + point.m_uuid + "/data";
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} else {
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backupPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/data";
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}
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backupPath.replace("//", "/");
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return Utils::isDirExist(backupPath);
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}
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/**
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* @brief 校验剩余空间是否满足备份
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* @param bInc，是否增量备份
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* @note 增量备份和全量备份计算空间方法不同
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*/
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void SystemBackupProxy::checkFreeCapacity(bool bInc)
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{
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// 1、计算待备份数据的大小
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MyDuSizeTool du;
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qint64 itotalSize = du.Do(m_backupWrapper.m_backupPaths, m_backupWrapper.m_backupExcludePaths, true);
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if (-1 == itotalSize) {
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qCritical() << "du system backup failed";
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emit checkResult(int(BackupResult::DU_ERR));
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return ;
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}
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// 2、计算备份分区剩余空间大小
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QString backupPath(Utils::getSysRootPath() + BACKUP_PATH);
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backupPath.replace("//", "/");
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QStorageInfo backupDisk(backupPath);
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qint64 freeSize = backupDisk.bytesFree();
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}
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/**
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* @brief 根据场景获取rsync命令参数
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* @param scene，场景
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* @return rsync的参数信息
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*/
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QStringList SystemBackupProxy::getRsyncArgs(SystemBackupScene scene)
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{
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QStringList args;
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switch (scene) {
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case SystemBackupScene::SYSTEM_BACKUP :
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args << "-avAXW";
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args << "--progress";
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break ;
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case SystemBackupScene::INC_SYSTEM_BACKUP :
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args << "-avAXr";
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args << "--progress";
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args << "--link-dest";
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break ;
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case SystemBackupScene::TRY_SYSTEM_BACKUP :
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args << "-avAXWn";
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args << "--stats";
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break ;
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case SystemBackupScene::TRY_INC_SYSTEM_BACKUP :
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args << "-avAXrn";
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args << "--stats";
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args << "--link-dest";
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break ;
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default:
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}
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return args;
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}
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