store project settings content when opening database

This is required to tell Sourcetrail that the database content is up to date with the current project settings.

core/include/DatabaseStorage.h

@@ -51,6 +51,8 @@ namespace sourcetrail
 		void setupDatabase();
 		void clearDatabase();
 
+		void setProjectSettingsText(const std::string& text);
+
 		bool isEmpty() const;
 		bool isCompatible() const;
 		int getLoadedDatabaseVersion() const;

core/include/SourcetrailDBWriter.h

@@ -94,6 +94,7 @@ namespace sourcetrail
 		void setupDatabaseTables();
 		void clearDatabaseTables();
 		void createOrResetProjectFile();
+		void updateProjectSettingsText();
 		int addNodeHierarchy(const NameHierarchy& nameHierarchy);
 		int addFile(const std::string& filePath);
 		int addEdge(int sourceId, int targetId, EdgeKind edgeKind);

core/src/DatabaseStorage.cpp

@@ -86,6 +86,11 @@ namespace sourcetrail
 		setupDatabase();
 	}
 
+	void DatabaseStorage::setProjectSettingsText(const std::string& text)
+	{
+		insertOrUpdateMetaValue("project_settings", text);
+	}
+
 	bool DatabaseStorage::isEmpty() const
 	{
 		const std::string tableName = "meta";

core/src/SourcetrailDBWriter.cpp

@@ -81,26 +81,6 @@ namespace sourcetrail
 		}
 		m_projectFilePath += ".srctrlprj";
 
-		try
-		{
-			openDatabase();
-		}
-		catch (const SourcetrailException e)
-		{
-			m_lastError = e.getMessage();
-			return false;
-		}
-
-		try
-		{
-			setupDatabaseTables();
-		}
-		catch (const SourcetrailException e)
-		{
-			m_lastError = e.getMessage();
-			return false;
-		}
-
 		{
 			bool projectFileExists = false;
 			{
@@ -122,6 +102,27 @@ namespace sourcetrail
 			}
 		}
 
+		try
+		{
+			openDatabase();
+		}
+		catch (const SourcetrailException e)
+		{
+			m_lastError = e.getMessage();
+			return false;
+		}
+
+		try
+		{
+			setupDatabaseTables();
+			updateProjectSettingsText();
+		}
+		catch (const SourcetrailException e)
+		{
+			m_lastError = e.getMessage();
+			return false;
+		}
+
 		return true;
 	}
 
@@ -145,16 +146,7 @@ namespace sourcetrail
 		try
 		{
 			clearDatabaseTables();
-		}
-		catch (const SourcetrailException e)
-		{
-			m_lastError = e.getMessage();
-			return false;
-		}
-
-		try
-		{
-			createOrResetProjectFile();
+			updateProjectSettingsText();
 		}
 		catch (const SourcetrailException e)
 		{
@@ -661,6 +653,33 @@ namespace sourcetrail
 		}
 	}
 
+	void SourcetrailDBWriter::updateProjectSettingsText()
+	{
+		try
+		{
+			std::ifstream f(m_projectFilePath.c_str());
+			if (f.is_open())
+			{
+				std::string line;
+				std::string text;
+				while (getline(f, line))
+				{
+					text += line + '\n';
+				}
+				f.close();
+				m_storage->setProjectSettingsText(text);
+			}
+			else
+			{
+				throw SourcetrailException("Unable to open project file.");
+			}
+		}
+		catch (...)
+		{
+			throw SourcetrailException("Exception occurred while creating project file.");
+		}
+	}
+
 	int SourcetrailDBWriter::addNodeHierarchy(const NameHierarchy& nameHierarchy)
 	{
 		if (nameHierarchy.nameElements.size() == 0)