ClangTools: Add settings for build project dependency

All Clang tools get support for running project build
before themselves or skipping that step.
Before this change static analyzer always ran it and
ClangTidy+Clazy tool always skipped.

Change-Id: Idb9fbc27f0589472abb0f9d207857eb79c0079fd
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangtools/clangtoolssettings.cpp

@@ -36,6 +36,7 @@
 #include <QThread>
 
 static const char simultaneousProcessesKey[] = "simultaneousProcesses";
+static const char buildBeforeAnalysisKey[] = "buildBeforeAnalysis";
 
 namespace ClangTools {
 namespace Internal {
@@ -66,6 +67,29 @@ void ClangToolsSettings::setSimultaneousProcesses(int processes)
     m_simultaneousProcesses = processes;
 }
 
+bool ClangToolsSettings::savedBuildBeforeAnalysis() const
+{
+    return m_savedBuildBeforeAnalysis;
+}
+
+int ClangToolsSettings::buildBeforeAnalysis() const
+{
+    return m_buildBeforeAnalysis;
+}
+
+void ClangToolsSettings::setBuildBeforeAnalysis(bool build)
+{
+    m_buildBeforeAnalysis = build;
+}
+
+void ClangToolsSettings::updateSavedBuildBeforeAnalysiIfRequired()
+{
+    if (m_savedBuildBeforeAnalysis == m_buildBeforeAnalysis)
+        return;
+    m_savedBuildBeforeAnalysis = m_buildBeforeAnalysis;
+    emit buildBeforeAnalysisChanged(m_savedBuildBeforeAnalysis);
+}
+
 void ClangToolsSettings::readSettings()
 {
     QSettings *settings = Core::ICore::settings();
@@ -76,6 +100,9 @@ void ClangToolsSettings::readSettings()
             = settings->value(QString(simultaneousProcessesKey),
                               defaultSimultaneousProcesses).toInt();
 
+    m_buildBeforeAnalysis = settings->value(QString(buildBeforeAnalysisKey), true).toBool();
+    updateSavedBuildBeforeAnalysiIfRequired();
+
     settings->endGroup();
 }
 
@@ -84,8 +111,10 @@ void ClangToolsSettings::writeSettings()
     QSettings *settings = Core::ICore::settings();
     settings->beginGroup(QString(Constants::SETTINGS_ID));
     settings->setValue(QString(simultaneousProcessesKey), m_simultaneousProcesses);
+    settings->setValue(QString(buildBeforeAnalysisKey), m_buildBeforeAnalysis);
 
     m_savedSimultaneousProcesses = m_simultaneousProcesses;
+    updateSavedBuildBeforeAnalysiIfRequired();
 
     settings->endGroup();
 }