Qt 拷贝文件目录

 1 bool copyDir(const QString &source, const QString &destination, bool override)
 2 {
 3     QDir directory(source);
 4     if (!directory.exists())
 5     {
 6         return false;
 7     }
 8 
 9 
10     QString srcPath = QDir::toNativeSeparators(source);
11     if (!srcPath.endsWith(QDir::separator()))
12         srcPath += QDir::separator();
13     QString dstPath = QDir::toNativeSeparators(destination);
14     if (!dstPath.endsWith(QDir::separator()))
15         dstPath += QDir::separator();
16 
17 
18     bool error = false;
19     QStringList fileNames = directory.entryList(QDir::AllEntries | QDir::NoDotAndDotDot | QDir::Hidden);
20     for (QStringList::size_type i=0; i != fileNames.size(); ++i)
21     {
22         QString fileName = fileNames.at(i);
23         QString srcFilePath = srcPath + fileName;
24         QString dstFilePath = dstPath + fileName;
25         QFileInfo fileInfo(srcFilePath);
26         if (fileInfo.isFile() || fileInfo.isSymLink())
27         {
28             if (override)
29             {
30                 QFile::setPermissions(dstFilePath, QFile::WriteOwner);
31             }
32             QFile::copy(srcFilePath, dstFilePath);
33         }
34         else if (fileInfo.isDir())
35         {
36             QDir dstDir(dstFilePath);
37             dstDir.mkpath(dstFilePath);
38             if (!copyDir(srcFilePath, dstFilePath, override))
39             {
40                 error = true;
41             }
42         }
43     }
44 
45 
46     return !error;
47 }

//另外一种

 1 // taken from utils/fileutils.cpp. We can not use utils here since that depends app_version.h.
 2 static bool copyRecursively(const QString &srcFilePath,
 3                             const QString &tgtFilePath)
 4 {
 5     QFileInfo srcFileInfo(srcFilePath);
 6     if (srcFileInfo.isDir()) {
 7         QDir targetDir(tgtFilePath);
 8         targetDir.cdUp();
 9         if (!targetDir.mkdir(QFileInfo(tgtFilePath).fileName()))
10             return false;
11         QDir sourceDir(srcFilePath);
12         QStringList fileNames = sourceDir.entryList(QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot | QDir::Hidden | QDir::System);
13         foreach (const QString &fileName, fileNames) {
14             const QString newSrcFilePath
15                     = srcFilePath + QLatin1Char('/') + fileName;
16             const QString newTgtFilePath
17                     = tgtFilePath + QLatin1Char('/') + fileName;
18             if (!copyRecursively(newSrcFilePath, newTgtFilePath))
19                 return false;
20         }
21     } else {
22         if (!QFile::copy(srcFilePath, tgtFilePath))
23             return false;
24     }
25     return true;
26 }
27 
28