CppTools: De-duplicate code for CppProjectUpdater

Centralize gathering the kit, toolchains and qt version.

Change-Id: I6bd586ac7925e2ee556fd119f1dab096cd500e41
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/cpptools/cppkitinfo.cpp

@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#include "cppkitinfo.h"
+
+#include <projectexplorer/kit.h>
+#include <projectexplorer/kitinformation.h>
+#include <projectexplorer/kitmanager.h>
+#include <projectexplorer/project.h>
+#include <projectexplorer/projectexplorerconstants.h>
+#include <projectexplorer/target.h>
+
+#include <qtsupport/qtkitinformation.h>
+
+namespace CppTools {
+
+using namespace ProjectExplorer;
+
+KitInfo::KitInfo(Project *project)
+{
+    // Kit
+    if (Target *target = project->activeTarget())
+        kit = target->kit();
+    else
+        kit = KitManager::defaultKit();
+
+    // Toolchains
+    if (kit) {
+        cToolChain = ToolChainKitInformation::toolChain(kit, Constants::C_LANGUAGE_ID);
+        cxxToolChain = ToolChainKitInformation::toolChain(kit, Constants::CXX_LANGUAGE_ID);
+    }
+}
+
+bool KitInfo::isValid() const
+{
+    return kit;
+}
+
+} // namespace CppTools

src/plugins/cpptools/cppkitinfo.h

@@ -0,0 +1,54 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "projectpart.h"
+
+#include "cpptools_global.h"
+
+namespace ProjectExplorer {
+class Kit;
+class Project;
+class ToolChain;
+} // namespace ProjectExplorer
+
+namespace CppTools {
+
+class CPPTOOLS_EXPORT KitInfo
+{
+public:
+    KitInfo(ProjectExplorer::Project *project);
+
+    bool isValid() const;
+
+    ProjectExplorer::Kit *kit = nullptr;
+    ProjectExplorer::ToolChain *cToolChain = nullptr;
+    ProjectExplorer::ToolChain *cxxToolChain = nullptr;
+
+    ProjectPart::QtVersion projectPartQtVersion = ProjectPart::NoQt;
+};
+
+} // namespace CppTools

src/plugins/cpptools/cpptools.pro

@@ -102,7 +102,8 @@ HEADERS += \
     cpptools_clangtidychecks.h \
     cppmodelmanagerinterface.h \
     cppbuiltinmodelmanagersupport.h \
-    headerpathfilter.h
+    headerpathfilter.h \
+    cppkitinfo.h
 
 SOURCES += \
     abstracteditorsupport.cpp \
@@ -189,7 +190,8 @@ SOURCES += \
     cppprojectpartchooser.cpp \
     wrappablelineedit.cpp \
     cppbuiltinmodelmanagersupport.cpp \
-    headerpathfilter.cpp
+    headerpathfilter.cpp \
+    cppkitinfo.cpp
 
 FORMS += \
     clangdiagnosticconfigswidget.ui \

src/plugins/cpptools/cpptools.qbs

@@ -115,6 +115,8 @@ Project {
             "cppincludesfilter.h",
             "cppindexingsupport.cpp",
             "cppindexingsupport.h",
+            "cppkitinfo.cpp",
+            "cppkitinfo.h",
             "cpplocalsymbols.cpp",
             "cpplocalsymbols.h",
             "cpplocatordata.cpp",