CMake: More logging of cmake parsing flags

Add more logging of cmake parsing flags as cmake runs are requested
in the plugin.

Change-Id: I5231bd29dfeb6521218dc28c26a5b658ccb4059b
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/cmakeprojectmanager/builddirmanager.cpp

@@ -45,6 +45,7 @@
 #include <utils/qtcassert.h>
 
 #include <QDir>
+#include <QLoggingCategory>
 #include <QMessageBox>
 #include <QPushButton>
 #include <QSet>
@@ -55,6 +56,8 @@ using namespace Utils;
 namespace CMakeProjectManager {
 namespace Internal {
 
+Q_LOGGING_CATEGORY(cmakeBuildDirManagerLog, "qtc.cmake.builddirmanager", QtWarningMsg);
+
 // --------------------------------------------------------------------
 // BuildDirManager:
 // --------------------------------------------------------------------
@@ -283,6 +286,9 @@ bool BuildDirManager::persistCMakeState()
 
 void BuildDirManager::parse(int reparseParameters)
 {
+    qCDebug(cmakeBuildDirManagerLog)
+        << "Parse called with flags:" << flagsString(reparseParameters);
+
     QTC_ASSERT(m_parameters.isValid(), return );
     QTC_ASSERT(m_reader, return);
     QTC_ASSERT((reparseParameters & REPARSE_FAIL) == 0, return);
@@ -294,9 +300,14 @@ void BuildDirManager::parse(int reparseParameters)
 
     if (!m_parameters.workDirectory.toFileInfo().exists("CMakeCache.txt")) {
         reparseParameters |= REPARSE_FORCE_CONFIGURATION | REPARSE_FORCE_CMAKE_RUN;
+        qCDebug(cmakeBuildDirManagerLog)
+            << "No CMakeCache.txt file found, new flags:" << flagsString(reparseParameters);
     } else if (reparseParameters & REPARSE_CHECK_CONFIGURATION) {
-        if (checkConfiguration())
+        if (checkConfiguration()) {
             reparseParameters |= REPARSE_FORCE_CONFIGURATION | REPARSE_FORCE_CMAKE_RUN;
+            qCDebug(cmakeBuildDirManagerLog)
+                << "Config check triggered flags change:" << flagsString(reparseParameters);
+        }
     }
 
     m_reader->parse(reparseParameters & REPARSE_FORCE_CMAKE_RUN,
@@ -406,6 +417,30 @@ CMakeConfig BuildDirManager::parseCMakeConfiguration(const Utils::FilePath &cach
     return result;
 }
 
+QString BuildDirManager::flagsString(int reparseFlags)
+{
+    QString result;
+    if (reparseFlags == REPARSE_DEFAULT) {
+        result = "<NONE>";
+    } else {
+        if (reparseFlags & REPARSE_URGENT)
+            result += " URGENT";
+        if (reparseFlags & REPARSE_FORCE_CMAKE_RUN)
+            result += " FORCE_CMAKE_RUN";
+        if (reparseFlags & REPARSE_FORCE_CONFIGURATION)
+            result += " FORCE_CONFIG";
+        if (reparseFlags & REPARSE_CHECK_CONFIGURATION)
+            result += " CHECK_CONFIG";
+        if (reparseFlags & REPARSE_SCAN)
+            result += " SCAN";
+        if (reparseFlags & REPARSE_IGNORE)
+            result += " IGNORE";
+        if (reparseFlags & REPARSE_FAIL)
+            result += " FAIL";
+    }
+    return result.trimmed();
+}
+
 bool BuildDirManager::checkConfiguration()
 {
     CMakeBuildConfiguration *bc = buildConfiguration();

src/plugins/cmakeprojectmanager/builddirmanager.h

@@ -91,7 +91,8 @@ public:
     static CMakeConfig parseCMakeConfiguration(const Utils::FilePath &cacheFile,
                                               QString *errorMessage);
 
-    enum ReparseParameters { REPARSE_DEFAULT = 0, // use defaults
+    enum ReparseParameters {
+        REPARSE_DEFAULT = 0,             // use defaults
         REPARSE_URGENT = 1,              // Do not wait for more requests, start ASAP
         REPARSE_FORCE_CMAKE_RUN = 2,     // Force cmake to run
         REPARSE_FORCE_CONFIGURATION = 4, // Force configuration arguments to cmake
@@ -101,6 +102,8 @@ public:
         REPARSE_FAIL = 64    // Do not reparse and raise a warning
     };
 
+    static QString flagsString(int reparseFlags);
+
 signals:
     void requestReparse(int reparseParameters) const;
     void parsingStarted() const;

src/plugins/cmakeprojectmanager/cmakebuildconfiguration.cpp

@@ -55,6 +55,8 @@
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 
+#include <QLoggingCategory>
+
 using namespace ProjectExplorer;
 using namespace Utils;
 
@@ -75,6 +77,8 @@ Q_DECLARE_METATYPE(CMakeProjectManager::CMakeExtraBuildInfo)
 namespace CMakeProjectManager {
 namespace Internal {
 
+Q_LOGGING_CATEGORY(cmakeBuildConfigurationLog, "qtc.cmake.bc", QtWarningMsg);
+
 const char CONFIGURATION_KEY[] = "CMake.Configuration";
 
 CMakeBuildConfiguration::CMakeBuildConfiguration(Target *parent, Core::Id id)
@@ -89,8 +93,11 @@ CMakeBuildConfiguration::CMakeBuildConfiguration(Target *parent, Core::Id id)
 
     // BuildDirManager:
     connect(&m_buildDirManager, &BuildDirManager::requestReparse, this, [this](int options) {
-        if (isActive())
+        if (isActive()) {
+            qCDebug(cmakeBuildConfigurationLog)
+                << "Passing on reparse request with flags" << BuildDirManager::flagsString(options);
             project()->requestReparse(options);
+        }
     });
     connect(&m_buildDirManager,
             &BuildDirManager::dataAvailable,
@@ -111,7 +118,6 @@ CMakeBuildConfiguration::CMakeBuildConfiguration(Target *parent, Core::Id id)
     connect(KitManager::instance(), &KitManager::kitUpdated, this, [this](Kit *k) {
         if (k != target()->kit())
             return; // not for us...
-
         // Build configuration has not changed, but Kit settings might have:
         // reparse and check the configuration, independent of whether the reader has changed
         m_buildDirManager.setParametersAndRequestParse(BuildDirParameters(this),

src/plugins/cmakeprojectmanager/fileapireader.cpp

@@ -124,7 +124,7 @@ void FileApiReader::resetData()
 
 void FileApiReader::parse(bool forceCMakeRun, bool forceConfiguration)
 {
-    qCDebug(cmakeFileApiMode) << "\n\nParse: ForceCMakeRun:" << forceCMakeRun
+    qCDebug(cmakeFileApiMode) << "Parse called with arguments: ForceCMakeRun:" << forceCMakeRun
                               << " - forceConfiguration:" << forceConfiguration;
     startState();