Utils: Introduce a TemporaryDirectory and TemporaryFile class

Both wrap the corresponding Qt class, but make sure all temporary files
or directories are created inside a "master temporary directory".

Change-Id: I55461be507c828c965224c02863ea5ed9bbf9498
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

src/plugins/cmakeprojectmanager/builddirmanager.cpp

@@ -55,6 +55,7 @@
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 #include <utils/synchronousprocess.h>
+#include <utils/temporarydirectory.h>
 
 #include <QDateTime>
 #include <QFile>
@@ -62,7 +63,6 @@
 #include <QMessageBox>
 #include <QRegularExpression>
 #include <QSet>
-#include <QTemporaryDir>
 
 using namespace ProjectExplorer;
 
@@ -91,10 +91,9 @@ const Utils::FileName BuildDirManager::workDirectory() const
     if (bdir.exists())
         return bdir;
     if (!m_tempDir) {
-        const QString path = QDir::tempPath() + QLatin1String("/qtc-cmake-XXXXXX");
-        m_tempDir.reset(new QTemporaryDir(path));
+        m_tempDir.reset(new Utils::TemporaryDirectory("qtc-cmake-XXXXXXXX"));
         if (!m_tempDir->isValid())
-            emit errorOccured(tr("Failed to create temporary directory using template \"%1\".").arg(path));
+            emit errorOccured(tr("Failed to create temporary directory \"%1\".").arg(m_tempDir->path()));
     }
     return Utils::FileName::fromString(m_tempDir->path());
 }

src/plugins/cmakeprojectmanager/builddirmanager.h

@@ -29,9 +29,9 @@
 #include "cmakeconfigitem.h"
 
 #include <utils/fileutils.h>
+#include <utils/temporarydirectory.h>
 
 #include <QObject>
-#include <QTemporaryDir>
 #include <QTimer>
 
 #include <functional>
@@ -104,7 +104,7 @@ private:
     void becameDirty();
 
     CMakeBuildConfiguration *m_buildConfiguration = nullptr;
-    mutable std::unique_ptr<QTemporaryDir> m_tempDir = nullptr;
+    mutable std::unique_ptr<Utils::TemporaryDirectory> m_tempDir = nullptr;
     mutable CMakeConfig m_cmakeCache;
 
     QTimer m_reparseTimer;

src/plugins/cmakeprojectmanager/servermode.cpp

@@ -33,6 +33,7 @@
 
 #include <QByteArray>
 #include <QCryptographicHash>
+#include <QFile>
 #include <QJsonDocument>
 #include <QJsonObject>
 #include <QLocalSocket>

src/plugins/cmakeprojectmanager/servermode.h

@@ -28,7 +28,6 @@
 #include <utils/qtcprocess.h>
 
 #include <QLoggingCategory>
-#include <QTemporaryDir>
 #include <QTimer>
 #include <QVariantMap>
 

src/plugins/cmakeprojectmanager/servermodereader.h

@@ -31,7 +31,6 @@
 #include <utils/qtcprocess.h>
 
 #include <QSet>
-#include <QTemporaryDir>
 #include <QTimer>
 
 #include <memory>