ClangTools: Add tool that runs clang-tidy and clazy

... over the whole project.
Generate and read serialized files to get diagnostics.

Change-Id: Iafc25fc70443107a040a995efc038aed35102bbf
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangtools/clangtidyclazyrunner.cpp

@@ -0,0 +1,101 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 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 "clangtidyclazyrunner.h"
+
+#include <cpptools/cppcodemodelsettings.h>
+#include <cpptools/cpptoolsreuse.h>
+
+#include <utils/synchronousprocess.h>
+
+#include <QDebug>
+#include <QDir>
+#include <QLoggingCategory>
+
+static Q_LOGGING_CATEGORY(LOG, "qtc.clangtools.runner")
+
+namespace ClangTools {
+namespace Internal {
+
+ClangTidyClazyRunner::ClangTidyClazyRunner(const QString &clangExecutable,
+                                           const QString &clangLogFileDir,
+                                           const Utils::Environment &environment,
+                                           QObject *parent)
+    : ClangToolRunner(clangExecutable,
+                      clangLogFileDir,
+                      environment,
+                      tr("Clang-Tidy and Clazy"),
+                      parent)
+{
+}
+
+static void addXclangArg(QStringList &arguments,
+                         const QString &argName,
+                         const QString &argValue = QString())
+{
+    arguments << QString("-Xclang")
+              << argName;
+    if (!argValue.isEmpty()) {
+        arguments << QString("-Xclang")
+                  << argValue;
+    }
+}
+
+QStringList ClangTidyClazyRunner::constructCommandLineArguments(const QStringList &options)
+{
+    using namespace CppTools;
+    QStringList arguments;
+
+    if (LOG().isDebugEnabled())
+        arguments << QString("-v");
+
+    arguments << QString("-fsyntax-only")
+              << QString("-serialize-diagnostics")
+              << QString(m_logFile);
+
+    const ClangDiagnosticConfig config = CppTools::codeModelSettings()->clangDiagnosticConfig();
+
+    const ClangDiagnosticConfig::TidyMode tidyMode = config.clangTidyMode();
+    if (tidyMode != ClangDiagnosticConfig::TidyMode::Disabled) {
+        addXclangArg(arguments, QString("-add-plugin"), QString("clang-tidy"));
+        if (tidyMode != ClangDiagnosticConfig::TidyMode::File) {
+            const QString tidyChecks = config.clangTidyChecks();
+            addXclangArg(arguments, QString("-plugin-arg-clang-tidy"), "-checks=" + tidyChecks);
+        }
+    }
+
+    const QString clazyChecks = config.clazyChecks();
+    if (!clazyChecks.isEmpty()) {
+        addXclangArg(arguments, QString("-add-plugin"), QString("clang-lazy"));
+        addXclangArg(arguments, QString("-plugin-arg-clang-lazy"), config.clazyChecks());
+    }
+
+    arguments += options;
+    arguments << QDir::toNativeSeparators(filePath());
+    return arguments;
+}
+
+} // namespace Internal
+} // namespace ClangTools