QmlDesigner: Retrieve rcc command centrally

Change-Id: I6886a22b51a002b48c248b3f49adc622c58c7ad8
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>

src/plugins/qmldesigner/generateresource.cpp

@@ -99,18 +99,18 @@ void GenerateResource::generateMenuEntry()
             return;
         temp.close();
 
-        auto rccBinary = QtSupport::QtKitAspect::qtVersion(currentProject->activeTarget()->kit())->hostBinPath();
-        rccBinary = rccBinary.pathAppended(Utils::HostOsInfo::withExecutableSuffix("rcc"));
+        QtSupport::BaseQtVersion *qtVersion = QtSupport::QtKitAspect::qtVersion(
+            currentProject->activeTarget()->kit());
+        QString rccBinary = qtVersion->rccCommand();
 
         QProcess rccProcess;
-        rccProcess.setProgram(rccBinary.toString());
         rccProcess.setWorkingDirectory(projectPath);
 
         const QStringList arguments1 = {"--project", "--output", temp.fileName()};
         const QStringList arguments2 = {"--binary", "--output", resourceFileName, temp.fileName()};
 
         for (const auto &arguments : {arguments1, arguments2}) {
-            rccProcess.start(rccBinary.toString(), arguments);
+            rccProcess.start(rccBinary, arguments);
             if (!rccProcess.waitForStarted()) {
                 Core::MessageManager::writeDisrupting(
                     QCoreApplication::translate("QmlDesigner::GenerateResource",
@@ -125,7 +125,7 @@ void GenerateResource::generateMenuEntry()
                 Core::MessageManager::writeDisrupting(
                     QCoreApplication::translate("QmlDesigner::GenerateResource",
                                                 "A timeout occurred running \"%1\"")
-                        .arg(rccBinary.toString() + arguments.join(" ")));
+                        .arg(rccBinary + " " + arguments.join(" ")));
                 return ;
 
             }
@@ -138,14 +138,14 @@ void GenerateResource::generateMenuEntry()
             if (rccProcess.exitStatus() != QProcess::NormalExit) {
                 Core::MessageManager::writeDisrupting(
                     QCoreApplication::translate("QmlDesigner::GenerateResource", "\"%1\" crashed.")
-                        .arg(rccBinary.toString() + arguments.join(" ")));
+                        .arg(rccBinary + " " + arguments.join(" ")));
                 return;
             }
             if (rccProcess.exitCode() != 0) {
                 Core::MessageManager::writeDisrupting(
                     QCoreApplication::translate("QmlDesigner::GenerateResource",
                                                 "\"%1\" failed (exit code %2).")
-                        .arg(rccBinary.toString() + " " + arguments.join(" "))
+                        .arg(rccBinary + " " + arguments.join(" "))
                         .arg(rccProcess.exitCode()));
                 return;
             }

src/plugins/qtsupport/baseqtversion.cpp

@@ -171,7 +171,7 @@ private:
     mutable std::unique_ptr<MacroExpander> m_expander;
 };
 
-enum HostBinaries { Designer, Linguist, Uic, QScxmlc };
+enum HostBinaries { Designer, Linguist, Rcc, Uic, QScxmlc };
 
 class BaseQtVersionPrivate
 {
@@ -232,6 +232,7 @@ public:
 
     FilePath m_qmakeCommand;
 
+    QString m_rccCommand;
     QString m_uicCommand;
     QString m_designerCommand;
     QString m_linguistCommand;
@@ -1021,6 +1022,7 @@ QString BaseQtVersionPrivate::findHostBinary(HostBinaries binary) const
         case Linguist:
             baseDir = m_mkspecValues.value("QT.designer.bins");
             break;
+        case Rcc:
         case Uic:
         case QScxmlc:
             baseDir = q->hostBinPath().toString();
@@ -1050,6 +1052,14 @@ QString BaseQtVersionPrivate::findHostBinary(HostBinaries binary) const
         else
             possibleCommands << HostOsInfo::withExecutableSuffix("linguist");
         break;
+    case Rcc:
+        if (HostOsInfo::isWindowsHost()) {
+            possibleCommands << "rcc.exe";
+        } else {
+            const QString majorString = QString::number(q->qtVersion().majorVersion);
+            possibleCommands << ("rcc-qt" + majorString) << ("rcc" + majorString) << "rcc";
+        }
+        break;
     case Uic:
         if (HostOsInfo::isWindowsHost()) {
             possibleCommands << "uic.exe";
@@ -1072,6 +1082,16 @@ QString BaseQtVersionPrivate::findHostBinary(HostBinaries binary) const
     return QString();
 }
 
+QString BaseQtVersion::rccCommand() const
+{
+    if (!isValid())
+        return QString();
+    if (!d->m_rccCommand.isNull())
+        return d->m_rccCommand;
+    d->m_rccCommand = d->findHostBinary(Rcc);
+    return d->m_rccCommand;
+}
+
 QString BaseQtVersion::uicCommand() const
 {
     if (!isValid())

src/plugins/qtsupport/baseqtversion.h

@@ -131,6 +131,7 @@ public:
     bool isInSourceDirectory(const Utils::FilePath &filePath);
     bool isSubProject(const Utils::FilePath &filePath) const;
 
+    QString rccCommand() const;
     // used by UiCodeModelSupport
     QString uicCommand() const;
     QString designerCommand() const;