ClangTools: Add automatic clang tool runner for open documents

Fixes: QTCREATORBUG-23349
Change-Id: I81197180c9d69c7df6184f8fcbf05f2256eaf7f6
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/clangtools/documentclangtoolrunner.h

@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** Copyright (C) 2020 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 "clangfileinfo.h"
+
+#include <utils/fileutils.h>
+#include <utils/temporarydirectory.h>
+
+#include <QObject>
+#include <QTimer>
+
+namespace Core { class IDocument; }
+namespace CppTools { class ClangDiagnosticConfig; }
+
+namespace ClangTools {
+
+namespace Internal {
+
+class ClangToolRunner;
+class DiagnosticMark;
+
+class DocumentClangToolRunner : public QObject
+{
+    Q_OBJECT
+public:
+    DocumentClangToolRunner(Core::IDocument *doc);
+    ~DocumentClangToolRunner();
+
+private:
+    void scheduleRun();
+    void run();
+    void runNext();
+
+    void onSuccess();
+    void onFailure(const QString &errorMessage, const QString &errorDetails);
+
+    void finalize();
+
+    void cancel();
+
+    const CppTools::ClangDiagnosticConfig getDiagnosticConfig(ProjectExplorer::Project *project);
+    template<class T>
+    ClangToolRunner *createRunner(const CppTools::ClangDiagnosticConfig &config,
+                                  const Utils::Environment &env);
+
+    QTimer m_runTimer;
+    Core::IDocument *m_document = nullptr;
+    Utils::TemporaryDirectory m_temporaryDir;
+    std::unique_ptr<ClangToolRunner> m_currentRunner;
+    QList<std::function<ClangToolRunner *()>> m_runnerCreators;
+    QList<DiagnosticMark *> m_marks;
+    FileInfo m_fileInfo;
+    QMetaObject::Connection m_projectSettingsUpdate;
+};
+
+} // namespace Internal
+} // namespace ClangTools