Allow disabling undo in CopyDirectory during uninstall

Task-number: QTIFW-2088
Change-Id: Ic5e781b89b1c74fc8f65575bd46c073610545523
Reviewed-by: Arttu Tarkiainen <arttu.tarkiainen@qt.io>

3 files changed, 43 insertions, 11 deletions

diff --git a/doc/operations.qdoc b/doc/operations.qdoc
index 4186f8e99..02f393ad1 100644
--- a/doc/operations.qdoc
+++ b/doc/operations.qdoc
@@ -90,6 +90,9 @@
             \li CopyDirectory
             \li "CopyDirectory" \c sourcePath \c targetPath
             \li Copies a directory from \c sourcePath to \c targetPath.
+            \note Directories will be reset during uninstallation. If you want to copy the
+                directory persistently, you can overwrite the \e UNDO by passing \e UNDOOPERATION
+                and \e "", to the end of the argument list.
         \row
             \li AppendFile
             \li "AppendFile" \c filename \c text
diff --git a/src/libs/installer/copydirectoryoperation.cpp b/src/libs/installer/copydirectoryoperation.cpp
index 4cef3facf..a2ef2cf5a 100644
--- a/src/libs/installer/copydirectoryoperation.cpp
+++ b/src/libs/installer/copydirectoryoperation.cpp
@@ -67,7 +67,7 @@ bool CopyDirectoryOperation::performOperation()
     if (!checkArgumentCount(2, 3, tr("<source> <target> [\"forceOverwrite\"]")))
         return false;
 
-    const QStringList args = arguments();
+    const QStringList args = parsePerformOperationArguments();
     const QString sourcePath = args.at(0);
     const QString targetPath = args.at(1);
     bool overwrite = false;
@@ -153,7 +153,11 @@ bool CopyDirectoryOperation::performOperation()
 
 bool CopyDirectoryOperation::undoOperation()
 {
-    Q_ASSERT(arguments().count() == 2);
+    if (parseUndoOperationArguments().count() > 0)
+        return true;
+
+    if (!checkArgumentCount(2))
+        return false;
 
     QDir dir;
     const QStringList files = value(QLatin1String("files")).toStringList();
diff --git a/tests/auto/installer/copydirectoryoperation/tst_copydirectoryoperation.cpp b/tests/auto/installer/copydirectoryoperation/tst_copydirectoryoperation.cpp
index bf95f635d..a1692095d 100644
--- a/tests/auto/installer/copydirectoryoperation/tst_copydirectoryoperation.cpp
+++ b/tests/auto/installer/copydirectoryoperation/tst_copydirectoryoperation.cpp
@@ -75,6 +75,20 @@ private:
         core->deleteLater();
     }
 
+    QStringList populateSourceDirectory()
+    {
+        QStringList fileEntries;
+        fileEntries << "file1" << "file2" << ".hidden1" << ".hidden2";
+
+        // Populate source directory
+        foreach (const QString &entry, fileEntries) {
+            QFile file(m_sourcePath + entry);
+            file.open(QFileDevice::ReadWrite);
+            file.close();
+        }
+        return fileEntries;
+    }
+
 private slots:
     void initTestCase()
     {
@@ -129,17 +143,9 @@ private slots:
 
     void testCopyDirectoryWithUndo()
     {
-        QStringList fileEntries;
-        fileEntries << "file1" << "file2" << ".hidden1" << ".hidden2";
+        const QStringList fileEntries = populateSourceDirectory();
 
-        // Populate source directory
-        foreach (const QString &entry, fileEntries) {
-            QFile file(m_sourcePath + entry);
-            QVERIFY(file.open(QFileDevice::ReadWrite));
-            file.close();
-        }
         CopyDirectoryOperation op(nullptr);
-
         op.setArguments(QStringList() << m_sourcePath << m_destinationPath);
         QVERIFY2(op.performOperation(), op.errorString().toLatin1());
 
@@ -151,6 +157,25 @@ private slots:
         QVERIFY(!QFileInfo(m_destinationPath).exists());
     }
 
+
+    void testCopyDirectoryNoUndo()
+    {
+        const QStringList fileEntries = populateSourceDirectory();
+
+        CopyDirectoryOperation op(nullptr);
+        op.setArguments(QStringList() << m_sourcePath << m_destinationPath << "UNDOOPERATION" << "");
+
+        QVERIFY2(op.performOperation(), op.errorString().toLatin1());
+
+        foreach (const QString &entry, fileEntries)
+            QVERIFY(QFile(m_destinationPath + entry).exists());
+
+        QVERIFY2(op.undoOperation(), op.errorString().toLatin1());
+        // Undo will NOT delete the empty destination directory here
+        foreach (const QString &entry, fileEntries)
+            QVERIFY(QFile(m_destinationPath + entry).exists());
+    }
+
     void testCopyDirectoryOverwrite()
     {
         QFile file(m_sourcePath + "file");