Add QFileInfo::readSymLink() to read the raw link path

The existing symLinkTarget() always resolves the symlink target to an
absolute path; readSymLink() provides access to the relative path when
that is how the symlink references its target.

[ChangeLog][QtCore][QFileInfo] Added readSymLink() to read the symlink's
raw target, without resolving to an absolute path.

Fixes: QTBUG-96761
Change-Id: I360e55f1a3bdb00e2966229ea8de78cf29a29417
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 16 insertions, 0 deletions

diff --git a/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp b/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
index 4b383c0c53..4a2e5cb5e3 100644
--- a/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
+++ b/tests/auto/corelib/io/qfileinfo/tst_qfileinfo.cpp
@@ -242,6 +242,7 @@ private slots:
     void nonExistingFile();
 
     void stdfilesystem();
+    void readSymLink();
 
 private:
     const QString m_currentDir;
@@ -2391,5 +2392,20 @@ void tst_QFileInfo::stdfilesystem()
 #endif
 }
 
+void tst_QFileInfo::readSymLink()
+{
+    QString symLinkName("./a.link");
+    const auto tidier = qScopeGuard([symLinkName]() { QFile::remove(symLinkName); });
+
+#ifdef Q_OS_WIN
+    QVERIFY2(CreateSymbolicLink(L"a.link", L"..\\..\\a",   SYMBOLIC_LINK_FLAG_ALLOW_UNPRIVILEGED_CREATE)
+             != 0,
+             "Failed to create symlink for test");
+#else
+    QVERIFY2(QFile::link("../../a", symLinkName), "Failed to create symlink for test");
+#endif
+    QFileInfo info(symLinkName);
+    QCOMPARE(info.readSymLink(), QString("../../a"));
+}
 QTEST_MAIN(tst_QFileInfo)
 #include "tst_qfileinfo.moc"