保存

backup-daemon/backup-daemon.pro

@@ -1,6 +1,6 @@
 QT += core
 QT -= gui
-QT += dbus
+QT += dbus xml
 
 CONFIG += c++11 console
 CONFIG -= app_bundle
@@ -20,6 +20,7 @@ DEFINES += QT_DEPRECATED_WARNINGS
 
 HEADERS += \
     ../common/mydefine.h \
+    ../common/mydusizetool.h \
     ../common/mylittleparse.h \
     ../common/reflect.h \
     ../common/singleton.h \
@@ -29,11 +30,13 @@ HEADERS += \
     mybackupmanager.h \
     mymountproxy.h \
     myprocess/mountbackupprocess.h \
+    parsebackuplist.h \
     systembackupproxy.h \
     workerfactory.h
 
 SOURCES += \
         ../common/mydefine.cpp \
+        ../common/mydusizetool.cpp \
         ../common/mylittleparse.cpp \
         ../common/reflect.cpp \
         ../common/utils.cpp \
@@ -42,6 +45,7 @@ SOURCES += \
         mybackupmanager.cpp \
         mymountproxy.cpp \
         myprocess/mountbackupprocess.cpp \
+        parsebackuplist.cpp \
         systembackupproxy.cpp \
         workerfactory.cpp
 

backup-daemon/main.cpp

@@ -5,6 +5,7 @@
 #include "backupmanager_adaptor.h"
 
 // test begin
+#include <QDebug>
 #include "../common/reflect.h"
 #include "mymountproxy.h"
 // test end
@@ -27,9 +28,12 @@ int main(int argc, char *argv[])
     //MyMountProxy * proxy = (MyMountProxy*)Reflect::createObject("MyMountProxy");
     //proxy->mountBackupPartition();
 
+    qDebug() << QString("测试 begin");
     BackupWrapper backupWrapper;
     MyBackupManager manager;
     manager.checkEnv(backupWrapper);
+
+    qDebug() << QString("测试 end");
     // test end
 
     MyBackupManager* backup_deamon = new MyBackupManager;

backup-daemon/mybackupmanager.cpp

@@ -63,6 +63,8 @@ int MyBackupManager::checkEnv(const BackupWrapper& backupWrapper)
     connect(&workerThread, &QThread::started, worker, &Worker::checkEnv);
     connect(&workerThread, &QThread::finished, worker, &Worker::deleteLater);
 
+    workerThread.start();
+
     return int(BackupResult::BACKUP_RESULT_INIT);
 }
 

backup-daemon/parsebackuplist.cpp

@@ -0,0 +1,330 @@
+#include "parsebackuplist.h"
+#include <QFile>
+#include <QTextStream>
+#include <QXmlStreamReader>
+#include <QDebug>
+
+/*
+<?xml version='1.0'?>
+<backupList>
+     <BackupPoint>
+          <Comment>21-07-21 14:14:01</Comment>
+          <Time>21-07-21 14:14:03</Time>
+          <Uuid>{beecb746-561f-4fa1-99ba-19fb849a1ba7}</Uuid>
+          <Size>24.26KB</Size>
+          <State>backup finished</State>
+          <Type>2</Type>
+     </BackupPoint>
+</backupList>
+*/
+
+#define BACKUPLIST "backupList"
+#define BACKUPPOINT "BackupPoint"
+#define COMMENT "Comment"
+#define TIME "Time"
+#define UUID "Uuid"
+#define SIZE "Size"
+#define STATE "State"
+#define TYPE "Type"
+#define POSITION "Position"
+#define STATUE_BACKUP_FINESHED "backup finished"
+
+ParseBackupList::ParseBackupList(const QString& xmlPath)
+    : m_xmlPath(xmlPath)
+{
+    QFile xmlFile(m_xmlPath);
+    if (!xmlFile.exists() || 0 == xmlFile.size()) {
+        InitXml();
+    }
+}
+
+/**
+ * @brief 初始化xml文件
+ * @return
+ */
+bool ParseBackupList::InitXml()
+{
+    QFile xmlFile(m_xmlPath);
+    if (!xmlFile.open(QIODevice::ReadWrite | QIODevice::Truncate))
+        return false;
+
+    QDomDocument doc;
+
+    QDomProcessingInstruction ins = doc.createProcessingInstruction("xml", "version=\'1.0\'");
+    doc.appendChild(ins);
+
+    QDomElement root = doc.createElement(BACKUPLIST);
+    doc.appendChild(root);
+
+    QTextStream out(&xmlFile);
+    doc.save(out, QDomNode::NodeType::CDATASectionNode);
+
+    xmlFile.close();
+    return true;
+}
+
+/**
+ * @brief 校验xml格式是否正确
+ * @return
+ */
+bool ParseBackupList::isXmlCorrect()
+{
+    QFile xmlFile(m_xmlPath);
+    if (!xmlFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
+        qDebug() << "Open file " << m_xmlPath << " failure";
+        return false;
+    }
+    QXmlStreamReader reader(&xmlFile);
+    while (!reader.atEnd()) {
+        if (reader.isStartElement()) {
+        }
+        reader.readNext();
+    }
+    if (reader.hasError()) {
+        qDebug() << "xml parse error!";
+        xmlFile.close();
+        return false;
+    }
+    xmlFile.close();
+    return true;
+}
+
+/**
+ * @brief 读取xml文件
+ * @param doc
+ * @return
+ */
+bool ParseBackupList::Doc_setContent(QDomDocument& doc)
+{
+    QFile xmlFile(m_xmlPath);
+    if (!xmlFile.open(QIODevice::ReadOnly)) {
+        qDebug() << " open backuplist.xml failed!";
+        return false;
+    }
+    QString errStr;
+    int errLine;
+    int errCol;
+
+    if (!doc.setContent(&xmlFile, false, &errStr, &errLine, &errCol)) {
+        qDebug() << QString("parse backuplist.xml error at line %1, column %2:%3").arg(errLine).arg(errCol).arg(errStr);
+        xmlFile.close();
+        return false;
+    }
+    xmlFile.close();
+    return true;
+}
+
+/**
+ * @brief 出厂备份修改backuplist.xml，仅保留出厂备份信息
+ * @param factoryBackupUuid，出厂备份的uuid
+ * @return ParseResult枚举类型
+ * @author zhaominyong
+ * @since 2021/06/27
+ */
+ParseBackupList::ParseResult ParseBackupList::updateForFactoryRestore(const QString& factoryBackupUuid)
+{
+    QDomDocument doc;
+    if (!Doc_setContent(doc))
+        return XML_PARSE_ERR;
+
+    QDomElement root = doc.documentElement();
+    QDomNodeList list = root.childNodes();
+
+    for (int i = 0; i < list.count(); i++) {
+        QDomNode node = list.at(i);
+        if (!node.isElement())
+            continue ;
+        QDomElement element = node.toElement();
+        QDomNodeList nodes = element.elementsByTagName(UUID);
+        if (0 < nodes.count()) {
+            QDomElement uuidElement = nodes.at(0).toElement();
+            QString tag = uuidElement.tagName();
+            QString text = uuidElement.text();
+            if (uuidElement.text() != factoryBackupUuid) {
+                root.removeChild(node);
+                --i;
+            }
+        }
+    }
+
+    QFile xmlFile(m_xmlPath);
+    if (!xmlFile.open(QIODevice::WriteOnly)) {
+        qDebug() << "update state failed";
+        return FAIL;
+    }
+    QTextStream out(&xmlFile);
+    doc.save(out, QDomNode::NodeType::EntityReferenceNode);
+    out.flush();
+    xmlFile.close();
+    return SUCCESS;
+}
+
+/**
+ * @brief 根据comment查找uuid
+ * @param comment
+ * @return uuid
+ */
+QString ParseBackupList::findUuidByComment(const QString& comment)
+{
+    QDomDocument doc;
+    if (!Doc_setContent(doc))
+        return "";
+
+    QDomElement root = doc.documentElement();
+    QDomNodeList list = root.childNodes();
+
+    for (int i = 0; i < list.count(); i++) {
+        QDomNode node = list.at(i);
+        if (!node.isElement())
+            continue;
+
+        QDomElement eleComment = node.firstChildElement(COMMENT);
+        if (eleComment.isNull())
+            continue;
+
+        if (comment != eleComment.text())
+            continue;
+
+        QDomElement eleUuid = node.firstChildElement(UUID);
+        if (eleUuid.isNull())
+            return "";
+
+        return eleUuid.text();
+    }
+
+    return "";
+}
+
+/**
+ * @brief 根据Uuid查找备份点信息
+ * @param Uuid
+ * @return 备份点信息
+ */
+ParseBackupList::BackupPoint ParseBackupList::findBackupPointByUuid(const QString& Uuid)
+{
+    BackupPoint backupPoint;
+    QDomDocument doc;
+    if (!Doc_setContent(doc))
+        return backupPoint;
+
+    QDomElement root = doc.documentElement();
+    QDomNodeList list = root.childNodes();
+
+    for (int i = 0; i < list.count(); i++) {
+        QDomNode node = list.at(i);
+        if (!node.isElement())
+            continue;
+
+        QDomElement eleUuid = node.firstChildElement(UUID);
+        if (eleUuid.isNull() || Uuid != eleUuid.text())
+            continue;
+
+        elementNodeToBackupPoint(node.toElement(), backupPoint);
+        return backupPoint;
+    }
+
+    return backupPoint;
+}
+
+/**
+ * @brief 获取最后一次系统备份
+ * @return
+ */
+ParseBackupList::BackupPoint ParseBackupList::getLastSysBackupPoint()
+{
+    BackupPoint backupPoint;
+    QDomDocument doc;
+    if (!Doc_setContent(doc))
+        return backupPoint;
+
+    QDomElement root = doc.documentElement();
+    QDomNodeList list = root.childNodes();
+
+    for (int i = 0; i < list.count(); i++) {
+        QDomNode node = list.at(i);
+        if (!node.isElement())
+            continue;
+
+        QDomElement eleType = node.firstChildElement(TYPE);
+        if (eleType.isNull() || (BackupType::BACKUP_SYSTEM != eleType.text().toInt() && BackupType::INC_BACKUP_SYSTEM != eleType.text().toInt()))
+            continue;
+
+        QDomElement eleState = node.firstChildElement(STATE);
+        QString type = eleState.text();
+        if (eleState.isNull() || eleState.text() != QString(STATUE_BACKUP_FINESHED))
+            continue;
+
+        elementNodeToBackupPoint(node.toElement(), backupPoint);
+    }
+
+    return backupPoint;
+}
+
+/**
+ * @brief elementNode --> BackupPoint
+ * @param node, QDomElement
+ * @param backupPoint, BackupPoint
+ */
+void ParseBackupList::elementNodeToBackupPoint(const QDomElement& node, BackupPoint& backupPoint)
+{
+    QDomElement eleUuid = node.firstChildElement(UUID);
+    if (!eleUuid.isNull())
+        backupPoint.m_uuid = eleUuid.text();
+
+    QDomElement eleComment = node.firstChildElement(COMMENT);
+    if (!eleComment.isNull())
+        backupPoint.m_backupName = eleComment.text();
+
+    QDomElement eleTime = node.firstChildElement(TIME);
+    if (!eleTime.isNull())
+        backupPoint.m_time = eleTime.text();
+
+    QDomElement eleSize = node.firstChildElement(SIZE);
+    if (!eleSize.isNull())
+        backupPoint.m_size = eleSize.text();
+
+    QDomElement eleState = node.firstChildElement(STATE);
+    if (!eleState.isNull())
+        backupPoint.m_state = eleState.text();
+
+    QDomElement eleType = node.firstChildElement(TYPE);
+    if (!eleType.isNull())
+        backupPoint.m_type = eleType.text().toInt();
+
+    QDomElement elePosition = node.firstChildElement(POSITION);
+    if (!elePosition.isNull())
+        backupPoint.m_iPosition = elePosition.text().toInt();
+}
+
+/**
+ * @brief backupPoint --> ElementNode
+ * @param backupPoint, BackupPoint
+ * @param node, QDomElement
+ */
+void ParseBackupList::backupPointToElementNode(const BackupPoint& backupPoint, QDomElement& node)
+{
+    node.appendChild(createTextElement(COMMENT, backupPoint.m_backupName));
+    node.appendChild(createTextElement(TIME, backupPoint.m_time));
+    node.appendChild(createTextElement(UUID, backupPoint.m_uuid));
+    node.appendChild(createTextElement(SIZE, backupPoint.m_size));
+    node.appendChild(createTextElement(STATE, backupPoint.m_state));
+    node.appendChild(createTextElement(TYPE, QString::number(backupPoint.m_type)));
+    node.appendChild(createTextElement(POSITION, QString::number(backupPoint.m_iPosition)));
+}
+
+/**
+ * @brief createTextElement
+ * @param tagName
+ * @param text
+ * @return <tagName>text</tagName>
+ */
+QDomElement ParseBackupList::createTextElement(const QString& tagName, const QString& text)
+{
+    QDomElement node;
+    node.setTagName(tagName);
+    QDomText textNode;
+    textNode.setData(text);
+    node.appendChild(textNode);
+
+    return node;
+}

backup-daemon/parsebackuplist.h

@@ -0,0 +1,85 @@
+#ifndef PARSEBACKUPLIST_H
+#define PARSEBACKUPLIST_H
+
+#include <QString>
+#include <QDomDocument>
+#include <QDomElement>
+#include "../common/mydefine.h"
+
+class ParseBackupList {
+public:
+    enum ParseResult {
+        // xml解析错误
+        XML_PARSE_ERR,
+        // 失败
+        FAIL,
+        // 成功
+        SUCCESS,
+    };
+
+    struct BackupPoint {
+        // 备份或还原指定的UUID
+        QString m_uuid;
+        // 备份名称，用来替换m_comment
+        QString m_backupName;
+        // 备份时间
+        QString m_time;
+        // 本地备份还是U盘备份: 0-本地备份；1-移动设备备份
+        int m_iPosition = -1;
+        // 操作类型，如：系统备份, 系统还原
+        int m_type = -1;
+        // 备份大小
+        QString m_size;
+        // 备份状态，如是否完成
+        QString m_state;
+
+        bool isNull() { return m_uuid.isEmpty(); }
+    };
+
+    ParseBackupList(const QString& xmlPath);
+
+    /**
+     * @brief 出厂备份修改backuplist.xml，仅保留出厂备份信息
+     * @param factoryBackupUuid，出厂备份的uuid
+     * @return ParseResult枚举类型
+     * @author zhaominyong
+     * @since 2021/06/27
+     */
+    ParseResult updateForFactoryRestore(const QString &factoryBackupUuid);
+
+    /**
+     * @brief 根据comment查找uuid
+     * @param comment
+     * @return uuid
+     */
+    QString findUuidByComment(const QString& comment);
+
+    /**
+     * @brief 根据Uuid查找备份点信息
+     * @param Uuid
+     * @return 备份点信息
+     */
+    BackupPoint findBackupPointByUuid(const QString& Uuid);
+
+    /**
+     * @brief 获取最后一次系统备份
+     * @return
+     */
+    BackupPoint getLastSysBackupPoint();
+
+    inline QString getXmlPath() { return m_xmlPath; }
+
+private:
+    bool InitXml();
+    bool isXmlCorrect();
+    bool Doc_setContent(QDomDocument& doc);
+
+    void elementNodeToBackupPoint(const QDomElement& eleNode, BackupPoint& backupPoint);
+    void backupPointToElementNode(const BackupPoint& backupPoint, QDomElement& eleNode);
+    QDomElement createTextElement(const QString& tagName, const QString& text);
+
+private:
+    QString m_xmlPath;
+};
+
+#endif // PARSEBACKUPLIST_H

backup-daemon/systembackupproxy.cpp

@@ -1,20 +1,40 @@
 #include "systembackupproxy.h"
+#include <QStorageInfo>
 #include <QDebug>
 #include "../common/utils.h"
+#include "../common/mydusizetool.h"
+#include "mymountproxy.h"
+#include "parsebackuplist.h"
 
 IMPLEMENT_DYNCREATE(SystemBackupProxy)
 
-SystemBackupProxy::SystemBackupProxy(QObject * parent) :
-    Worker(parent)
+SystemBackupProxy::SystemBackupProxy()
 {}
 
 SystemBackupProxy::~SystemBackupProxy()
 {}
 
+/**
+ * @brief 环境检测
+ */
 void SystemBackupProxy::checkEnvEx()
 {
     qDebug() << "SystemBackupProxy::checkEnv invoke begin";
-    emit checkResult((int)BackupResult::BACKUP_START_SUCCESS);
+
+    // 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
+    MyMountProxy mountProxy;
+    if ( MyMountProxy::MountResult::MOUNTED != mountProxy.mountBackupPartition() ) {
+        emit checkResult(int(BackupResult::BACKUP_PARTITION_MOUNT_FAIL));
+        return ;
+    }
+
+    // 2、检测备份是否增量备份
+    bool bInc = checkIsIncBackup();
+    m_backupWrapper.m_bIncrement = bInc;
+
+    // 3、检测空间是否满足备份
+    checkFreeCapacity(bInc);
+
     qDebug() << "SystemBackupProxy::checkEnv invoke end";
 }
 
@@ -24,3 +44,83 @@ void SystemBackupProxy::doWorkEx()
 void SystemBackupProxy::cancelEx()
 {}
 
+/**
+ * @brief 校验是否增量备份
+ * @return true,增量备份； false，全量备份
+ */
+bool SystemBackupProxy::checkIsIncBackup()
+{
+    QString backupPath;
+    if (m_backupWrapper.m_uuid.isEmpty()) {
+        QString xmlPath(Utils::getSysRootPath() + BACKUP_XML_PATH);
+        xmlPath.replace("//", "/");
+        ParseBackupList parser(xmlPath);
+        ParseBackupList::BackupPoint point = parser.getLastSysBackupPoint();
+        if (point.m_uuid.isEmpty())
+            return false;
+        backupPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + point.m_uuid + "/data";
+    } else {
+        backupPath = Utils::getSysRootPath() + BACKUP_SNAPSHOTS_PATH + "/" + m_backupWrapper.m_uuid + "/data";
+    }
+
+    backupPath.replace("//", "/");
+    return Utils::isDirExist(backupPath);
+}
+
+/**
+ * @brief 校验剩余空间是否满足备份
+ * @param bInc，是否增量备份
+ * @note 增量备份和全量备份计算空间方法不同
+ */
+void SystemBackupProxy::checkFreeCapacity(bool bInc)
+{
+    // 1、计算待备份数据的大小
+    MyDuSizeTool du;
+    qint64 itotalSize = du.Do(m_backupWrapper.m_backupPaths, m_backupWrapper.m_backupExcludePaths, true);
+    if (-1 == itotalSize) {
+        qCritical() << "du system backup failed";
+        emit checkResult(int(BackupResult::DU_ERR));
+        return ;
+    }
+
+    // 2、计算备份分区剩余空间大小
+    QString backupPath(Utils::getSysRootPath() + BACKUP_PATH);
+    backupPath.replace("//", "/");
+    QStorageInfo backupDisk(backupPath);
+    qint64 freeSize = backupDisk.bytesFree();
+}
+
+/**
+ * @brief 根据场景获取rsync命令参数
+ * @param scene，场景
+ * @return rsync的参数信息
+ */
+QStringList SystemBackupProxy::getRsyncArgs(SystemBackupScene scene)
+{
+    QStringList args;
+
+    switch (scene) {
+    case SystemBackupScene::SYSTEM_BACKUP :
+        args << "-avAXW";
+        args << "--progress";
+        break ;
+    case SystemBackupScene::INC_SYSTEM_BACKUP :
+        args << "-avAXr";
+        args << "--progress";
+        args << "--link-dest";
+        break ;
+    case SystemBackupScene::TRY_SYSTEM_BACKUP :
+        args << "-avAXWn";
+        args << "--stats";
+        break ;
+    case SystemBackupScene::TRY_INC_SYSTEM_BACKUP :
+        args << "-avAXrn";
+        args << "--stats";
+        args << "--link-dest";
+        break ;
+    default:
+    }
+
+    return args;
+}
+

backup-daemon/systembackupproxy.h

@@ -8,7 +8,15 @@ class SystemBackupProxy : public Worker
     Q_OBJECT
     DECLARE_DYNCREATE(SystemBackupProxy)
 public:
-    SystemBackupProxy(QObject * parent = nullptr);
+    // 系统备份的几种场景
+    enum SystemBackupScene {
+        SYSTEM_BACKUP,  // 系统备份
+        INC_SYSTEM_BACKUP,  // 增量系统备份
+        TRY_SYSTEM_BACKUP,  // 测试系统备份，可用于计算备份传输数据大小
+        TRY_INC_SYSTEM_BACKUP, // 测试增量系统备份，可用于计算备份传输数据大小
+    };
+
+    explicit SystemBackupProxy();
     virtual ~SystemBackupProxy();
 
 public:
@@ -20,6 +28,23 @@ public:
 
     // 任务取消
     virtual void cancelEx();
+
+private:
+    // 校验是否增量备份
+    bool checkIsIncBackup();
+
+    // 校验剩余空间是否满足备份
+    void checkFreeCapacity(bool bInc);
+
+    /**
+     * @brief 根据场景获取rsync命令参数
+     * @param scene，场景
+     * @return 组装好的rsync的参数信息
+     */
+    QString getRsyncArgs(SystemBackupScene scene);
+
+    // 是否增量备份
+    bool m_bIncrement = false;
 };
 
 #endif // SYSTEMBACKUPPROXY_H

backup-daemon/workerfactory.cpp

@@ -1,8 +1,8 @@
 #include "workerfactory.h"
 #include <QString>
 
-Worker::Worker(QObject* parent) :
-    QObject(parent)
+Worker::Worker() :
+    QObject(nullptr)
 {}
 
 Worker::~Worker()

backup-daemon/workerfactory.h

@@ -12,7 +12,7 @@ class Worker : public QObject
 {
     Q_OBJECT
 public:
-    Worker(QObject* parent = nullptr);
+    explicit Worker();
     virtual ~Worker();
 
 signals:

common/mydefine.h

@@ -8,19 +8,16 @@
 
 #define DEFAULT_APP_PATH "/usr/bin"
 
-#define LOCK_FILE "/tmp/lock/kylin-backup.lock"
-
-#define BACKUP_XML_PATH "/backup/snapshots/backuplist.xml"
-
-#define BOOTINFO_PATH "/etc/.bootinfo"
-
 #define BACKUP_PATH "/backup"
-
 #define BACKUP_SNAPSHOTS_PATH "/backup/snapshots"
-
+#define BACKUP_XML_PATH "/backup/snapshots/backuplist.xml"
 #define EXCLUDE_FILE_PATH "/backup/snapshots/.exclude"
 
+#define BOOTINFO_PATH "/etc/.bootinfo"
 #define FSTAB_PATH "/etc/fstab"
+#define LOCK_FILE "/tmp/lock/kylin-backup.lock"
+#define LOCK_FILE_PATH "/tmp/lock"
+#define PROC_LOG "/var/log/backup.log"
 
 #define BACKUP_CLI_NAME "kybackup"
 
@@ -83,6 +80,8 @@ struct BackupWrapper {
     int m_frontUid = -1;
     // 备份用户所属组id
     int m_gid = -1;
+    // 是否增量备份
+    bool m_bIncrement = false;
 
     static void registerMetaType();
 };

common/mydusizetool.cpp

@@ -0,0 +1,113 @@
+#include "mydusizetool.h"
+#include <QDebug>
+#include "utils.h"
+
+MyDuSizeTool::MyDuSizeTool(QObject* parent)
+{
+    m_p = new QProcess(this);
+    connect(m_p, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(finished(int, QProcess::ExitStatus)));
+    connect(m_p, &QProcess::readyReadStandardError, this, [&]() {
+        QByteArray err = m_p->readAllStandardError();
+        qCritical("du process error: %s", err.data());
+    });
+}
+
+MyDuSizeTool::~MyDuSizeTool()
+{
+    delete m_p;
+}
+
+/**
+ * @brief MyDuSizeTool::Do
+ * @param paths, du计算路径列表
+ * @param excludePaths，du排查路径列表
+ * @param block，bool, 是否阻塞方式计算
+ * @return
+ */
+qint64 MyDuSizeTool::Do(QStringList paths, QStringList excludePaths, bool block)
+{
+    return _Do(paths, excludePaths, true, block);
+}
+
+/**
+ * @brief MyDuSizeTool::_Do
+ * @param paths, du计算路径列表
+ * @param excludePaths，du排查路径列表
+ * @param needExclude，bool，是否需要排除
+ * @param block，bool, 是否阻塞方式计算
+ * @return
+ */
+qint64 MyDuSizeTool::_Do(QStringList paths, QStringList excludePaths, bool needExclude, bool block)
+{
+    Init(paths, excludePaths);
+
+    if (paths.isEmpty()) {
+        qCritical("du paths is empty!");
+        return -1;
+    }
+    if (needExclude && excludePaths.isEmpty()) {
+        qCritical("du excludepaths is empty!");
+        return -1;
+    }
+
+    QString cmd = "du";
+    for (QString& x : paths) {
+        cmd.append(QString(" \"%1\"").arg(x));
+    }
+    if (needExclude) {
+        for (QString& item : excludePaths) {
+            QString arg = QString(" --exclude=\"%1\"").arg(x);
+            cmd.append(arg);
+        }
+    }
+
+    cmd.append(" -sb | tail -1 | awk -F \" \" '{print $1}'");
+
+    qDebug("cmd is %s", cmd.toStdString().c_str());
+
+    QStringList Args;
+    Args << "-c" << cmd;
+    m_p->start("bash", Args);
+
+    if (!m_p->waitForStarted())
+        return -1;
+
+    if (block) {
+        if (!m_p->waitForFinished(-1)) {
+            return -1;
+        }
+
+        return m_size;
+    }
+
+    return 0;
+}
+
+/**
+ * @brief MyDuSizeTool::Do
+ * @param paths, du计算路径列表
+ * @param excludePaths，du排查路径列表
+ * @param block，bool, 是否阻塞方式计算
+ * @return
+ */
+qint64 MyDuSizeTool::Do(QStringList paths, bool block)
+{
+    return _Do(paths, {}, false, block);
+}
+
+void MyDuSizeTool::Init(QStringList paths, QStringList excludePaths)
+{
+    m_paths = paths;
+    m_excludePaths = excludePaths;
+}
+
+void MyDuSizeTool::finished(int, QProcess::ExitStatus)
+{
+    QString result = m_p->readAll();
+    if (result.isEmpty())
+        m_size = 0;
+    else
+        m_size = result.toLongLong();
+    emit duFinished(m_size);
+}
+

common/mydusizetool.h

@@ -0,0 +1,34 @@
+#ifndef MYDUSIZETOOL_H
+#define MYDUSIZETOOL_H
+
+#include <QObject>
+#include <QProcess>
+
+class MyDuSizeTool : public QObject {
+    Q_OBJECT
+public:
+    MyDuSizeTool(QObject* parent = nullptr);
+    ~MyDuSizeTool();
+
+    qint64 Do(QStringList paths, QStringList excludePaths, bool block = true);
+    qint64 Do(QStringList paths, bool block = true);
+    qint64 size() { return m_size; }
+
+private:
+    void Init(QStringList paths, QStringList excludePaths);
+    qint64 _Do(QStringList paths, QStringList excludePaths, bool needExclude, bool block = true);
+
+signals:
+    void duFinished(qint64 size);
+private slots:
+    void finished(int, QProcess::ExitStatus);
+
+private:
+    QStringList m_paths;
+    QStringList m_excludePaths;
+    qint64 m_size = 0;
+
+    QProcess* m_p;
+};
+
+#endif // !MYDUSIZETOOL_H

common/utils.cpp

@@ -5,6 +5,7 @@
 #include <QTextStream>
 #include <QDir>
 #include <QRegularExpression>
+#include <QThread>
 #include <iostream>
 #include <unistd.h>
 #include <fcntl.h>
@@ -66,13 +67,13 @@ void Utils::customMessageHandler(QtMsgType type, const QMessageLogContext& conte
 
     // 设置输出信息格式
     QString strDateTime = QDateTime::currentDateTime().toString("yyyy-MM-dd hh:mm:ss ddd");
-    QString strMessage = strMsg + QString("DateTime:%1 Message:%2 File:%3(%4)")
-            .arg(strDateTime).arg(localMsg.constData()).arg(context.file).arg(context.line);
+    QString strMessage = strMsg + QString("DateTime:%1 ThreadId:%2 Message:%3 File:%4(%5)")
+            .arg(strDateTime).arg(QString::number(quintptr(QThread::currentThreadId()))).arg(localMsg.constData()).arg(context.file).arg(context.line);
 
     std::cout << strMessage.toUtf8().data() << std::endl;
 
     // 输出信息至文件中（读写、追加形式）
-    QString fileName = m_sysRootPath + "/var/log/backup.log";
+    QString fileName = m_sysRootPath + PROC_LOG;
     fileName.replace("//", "/");
     QFile file(fileName);
     file.open(QIODevice::ReadWrite | QIODevice::Append);
@@ -91,10 +92,10 @@ void Utils::customMessageHandler(QtMsgType type, const QMessageLogContext& conte
  */
 int Utils::lockProgram(int frontUid)
 {
-    QDir dir("/tmp/lock");
+    QDir dir(LOCK_FILE_PATH);
     if (!dir.exists()) {
-        dir.mkdir("/tmp/lock");
-        chmod("/tmp/lock", S_IRWXU | S_IRWXG | S_IRWXO);
+        dir.mkdir(LOCK_FILE_PATH);
+        chmod(LOCK_FILE_PATH, S_IRWXU | S_IRWXG | S_IRWXO);
     }
 
     int lock_file_fd = ::open(LOCK_FILE, O_CREAT | O_RDWR, 0666);
@@ -169,7 +170,7 @@ bool Utils::checkBootInfoExists()
 
 /**
  * @brief 获取备份分区的UUID
- * @return
+ * @return 备份分区的UUID
  */
 QString Utils::getBackupPartitionUuid()
 {
@@ -252,7 +253,7 @@ void Utils::excludeFstabBindPath(QStringList &excludes)
 }
 
 /**
- * @brief 生成rsync --exclude路径规则文件
+ * @brief 生成rsync --exclude-from排除路径规则文件
  * @return
  */
 bool Utils::generateExcludePathsFile()
@@ -270,25 +271,25 @@ bool Utils::generateExcludePathsFile()
     QTextStream in(&excludePathFile);
     in << "/backup" << endl; //分区
     in << "/boot/efi" << endl;
+    in << "/cdrom" << endl;
+    in << "/dev" << endl;
     // efi原始目录在/boot/efi，备份到目标目录为/efi下，再还原时已经单独处理了，批量还原时应该屏蔽此目录
     in << "/efi" << endl;
-    in << "/dev/*" << endl;
-    in << "/ghost" << endl; //ghost镜像文件
-    in << "/mnt/*" << endl;
-    in << "/proc/*" << endl;
-    in << "/run/*" << endl;
-    in << "/sys/*" << endl; //添加*，表示如果/sys目录不存在，则会拷贝/sys，但不会拷贝/sys下的内容
-    in << "/media/*" << endl;
-    in << "/tmp/*" << endl;
-    in << "/lost+found/*" << endl;
-    in << "/var/lib/udisks2/*" << endl;
-    in << "/cdrom/*" << endl;
-    in << "/swap_file" << endl;
     // 安全模块会将文件/usr/share/kysec-utils/data/readonly_list中的文件列表限制只读，无法修改、备份（包含扩展属性时）、删除等
     // 现在里面仅有/etc/uid_list，先暂时排除掉；等后续安全模块有其它保护方案后再进一步修改
     in << "/etc/uid_list" << endl;
+    in << "/ghost" << endl; //ghost镜像文件
+    in << "/lost+found" << endl;
+    in << "/media" << endl;
+    in << "/mnt" << endl;
+    in << "/proc" << endl;
+    in << "/run" << endl;
+    in << "/swap_file" << endl;
+    in << "/sys" << endl; //添加*(/sys/*)，表示如果/sys目录不存在，则会拷贝/sys，但不会拷贝/sys下的内容
+    in << "/tmp" << endl;
     // 安卓兼容的这个里面很多文件都是设置了特殊扩展文件属性，lsetxattr无法设置成功，听取安卓兼容模块同事的意见不用管这个文件夹，其实是从home下挂载的
     in << "/var/lib/kmre" << endl;
+    in << "/var/lib/udisks2" << endl;
     in << "/var/log" << endl;
 
     // 系统安装后有的会将/data/home /data/root挂载到的/home /root上，实际文件是存放在/data/home /data/root下面
@@ -302,3 +303,66 @@ bool Utils::generateExcludePathsFile()
     excludePathFile.close();
     return true;
 }
+
+/**
+ * @brief 判断目录是否存在
+ * @param 目录路径
+ * @return true,存在；false,不存在
+ */
+bool Utils::isDirExist(const QString& fullDirName)
+{
+    QDir dir(fullDirName);
+    if (dir.exists())
+        return true;
+    return false;
+}
+
+/**
+ * @brief 获取系统备份还原排除路径列表, rsync --exclude-from排除路径规则文件中读取
+ * @return 系统备份还原排除路径列表
+ */
+QStringList Utils::getFromExcludePathsFile()
+{
+    QString excludeFile = Utils::m_sysRootPath + EXCLUDE_FILE_PATH;
+    excludeFile.replace("//", "/");
+    QFile excludePathFile(excludeFile);
+    if (!excludePathFile.open(QIODevice::ReadOnly)) {
+        QStringList list;
+        list << "/backup";
+        list << "/boot/efi";
+        list << "/cdrom";
+        list << "/dev";
+        list << "/efi";
+        list << "/etc/uid_list";
+        list << "/ghost";
+        list << "/lost+found";
+        list << "/media";
+        list << "/mnt";
+        list << "/proc";
+        list << "/run";
+        list << "/swap_file";
+        list << "/sys";
+        list << "/tmp";
+        list << "/var/lib/kmre";
+        list << "/var/lib/udisks2";
+        list << "/var/log";
+
+        // 系统安装后有的会将/data/home /data/root挂载到的/home /root上，实际文件是存放在/data/home /data/root下面
+        QStringList excludes;
+        Utils::excludeFstabBindPath(excludes);
+        for (const QString& item : excludes) {
+            list << item;
+        }
+
+        return list;
+    }
+
+    QTextStream out(&excludePathFile);
+    QString strAll = out.readAll();
+    excludePathFile.close();
+
+    QStringList list = strAll.split("\n");
+    list.removeAll(QString(""));
+
+    return list;
+}

common/utils.h

@@ -87,11 +87,24 @@ public:
     static void excludeFstabBindPath(QStringList &excludes);
 
     /**
-     * @brief 生成rsync --exclude路径规则文件
+     * @brief 生成rsync --exclude-from排除路径规则文件
      * @return
      */
     static bool generateExcludePathsFile();
 
+    /**
+     * @brief 获取系统备份还原排除路径列表
+     * @return 系统备份还原排除路径列表
+     */
+    static QStringList getFromExcludePathsFile();
+
+    /**
+     * @brief 判断目录是否存在
+     * @param 目录路径
+     * @return true,存在；false,不存在
+     */
+    static bool isDirExist(const QString& fullDirName);
+
 private:
     // 系统根目录，默认"/"
     static QString m_sysRootPath;

yhkylin-backup-tool.pro.user

@@ -0,0 +1,292 @@
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