Windeployqt: Fix -v/--version option

While the version option was already there, it had no output attached
to it, and simply generated the whole help text. Make sure that if the
-v/--version option is set, only the tool version is outputted.

Fixes: QTBUG-119511
Pick-to: 6.6
Change-Id: I59ee620333c02eb0a031cd05ac3170216cd034fa
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>

1 files changed, 9 insertions, 2 deletions

diff --git a/src/tools/windeployqt/main.cpp b/src/tools/windeployqt/main.cpp
index f3c579c56b..cc9a3f88dd 100644
--- a/src/tools/windeployqt/main.cpp
+++ b/src/tools/windeployqt/main.cpp
@@ -229,7 +229,8 @@ static QString msgFileDoesNotExist(const QString & file)
 
 enum CommandLineParseFlag {
     CommandLineParseError = 0x1,
-    CommandLineParseHelpRequested = 0x2
+    CommandLineParseHelpRequested = 0x2,
+    CommandLineVersionRequested = 0x4
 };
 
 static QCommandLineOption createQMakeOption()
@@ -330,7 +331,7 @@ static inline int parseArguments(const QStringList &arguments, QCommandLineParse
         "installation (e.g. <QT_DIR\\bin>) to the PATH variable and then run:\n  windeployqt <path-to-app-binary>\n\n"
         "If your application uses Qt Quick, run:\n  windeployqt --qmldir <path-to-app-qml-files> <path-to-app-binary>"_s);
     const QCommandLineOption helpOption = parser->addHelpOption();
-    parser->addVersionOption();
+    const QCommandLineOption versionOption = parser->addVersionOption();
 
     QCommandLineOption dirOption(QStringLiteral("dir"),
                                  QStringLiteral("Use directory instead of binary directory."),
@@ -520,6 +521,8 @@ static inline int parseArguments(const QStringList &arguments, QCommandLineParse
     const bool success = parser->parse(arguments);
     if (parser->isSet(helpOption))
         return CommandLineParseHelpRequested;
+    if (parser->isSet(versionOption))
+        return CommandLineVersionRequested;
     if (!success) {
         *errorMessage = parser->errorText();
         return CommandLineParseError;
@@ -1810,6 +1813,10 @@ int main(int argc, char **argv)
         const int result = parseArguments(QCoreApplication::arguments(), &parser, &options, &errorMessage);
         if (result & CommandLineParseError)
             std::wcerr << errorMessage << "\n\n";
+        if (result & CommandLineVersionRequested) {
+            std::fputs(QT_VERSION_STR "\n", stdout);
+            return 0;
+        }
         if (result & CommandLineParseHelpRequested)
             std::fputs(qPrintable(helpText(parser, pluginInfo)), stdout);
         if (result & CommandLineParseError)