QDir: Add support for setting directory permissions to mkdir()

This patch adds an overload of the QDir::mkdir() method that
accepts permissions. This allows setting of the directory
permissions at the time of its creation.

[ChangeLog][QtCore][QDir] Added QDir::mdkir() overload that
accepts permissions argument.

Task-number: QTBUG-79750
Change-Id: Ic9db723b94ff0d2da6e0b819ac2e5d1f9a4e2049
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

1 files changed, 4 insertions, 1 deletions

diff --git a/src/corelib/io/qabstractfileengine_p.h b/src/corelib/io/qabstractfileengine_p.h
index 91b74bebd3..d8ea5c318f 100644
--- a/src/corelib/io/qabstractfileengine_p.h
+++ b/src/corelib/io/qabstractfileengine_p.h
@@ -55,6 +55,8 @@
 #include "QtCore/qfile.h"
 #include "QtCore/qdir.h"
 
+#include <optional>
+
 #ifdef open
 #error qabstractfileengine_p.h must be included before any header file that defines open
 #endif
@@ -135,7 +137,8 @@ public:
     virtual bool rename(const QString &newName);
     virtual bool renameOverwrite(const QString &newName);
     virtual bool link(const QString &newName);
-    virtual bool mkdir(const QString &dirName, bool createParentDirectories) const;
+    virtual bool mkdir(const QString &dirName, bool createParentDirectories,
+                       std::optional<QFile::Permissions> permissions = std::nullopt) const;
     virtual bool rmdir(const QString &dirName, bool recurseParentDirectories) const;
     virtual bool setSize(qint64 size);
     virtual bool caseSensitive() const;