data: refreshing with DB

* database stores modification time of files.
* FileManager updates internal state based on database info.
* reimplemented FileManager's check if a file is in project.
* implemented clearing data of updated or removed files before reparsing the updated and added files.

src/lib/data/access/StorageAccess.h

@@ -11,6 +11,7 @@
 #include "data/graph/Node.h"
 #include "data/search/SearchMatch.h"
 
+struct FileInfo;
 class Graph;
 class TokenLocation;
 class TokenLocationCollection;
@@ -24,6 +25,8 @@ public:
 	virtual Id getIdForNodeWithName(const std::string& name) const = 0;
 	virtual Id getIdForEdgeWithName(const std::string& name) const = 0;
 
+	virtual std::vector<FileInfo> getInfoOnAllFiles() const = 0;
+
 	virtual std::string getNameForNodeWithId(Id id) const = 0;
 	virtual Node::NodeType getNodeTypeForNodeWithId(Id id) const = 0;
 	virtual std::vector<SearchMatch> getAutocompletionMatches(

src/lib/data/access/StorageAccessProxy.cpp

@@ -1,11 +1,12 @@
 #include "data/access/StorageAccessProxy.h"
 
-#include "utility/logging/logging.h"
-
 #include "data/graph/Graph.h"
 #include "data/location/TokenLocationCollection.h"
 #include "data/location/TokenLocationFile.h"
 
+#include "utility/logging/logging.h"
+#include "utility/file/FileInfo.h"
+
 StorageAccessProxy::StorageAccessProxy()
 	: m_subject(nullptr)
 {
@@ -51,6 +52,16 @@ Id StorageAccessProxy::getIdForEdgeWithName(const std::string& name) const
 	return 0;
 }
 
+std::vector<FileInfo> StorageAccessProxy::getInfoOnAllFiles() const
+{
+	std::vector<FileInfo> fileInfos;
+	if (hasSubject())
+	{
+		fileInfos = m_subject->getInfoOnAllFiles();
+	}
+	return fileInfos;
+}
+
 Node::NodeType StorageAccessProxy::getNodeTypeForNodeWithId(Id id) const
 {
 	if(hasSubject())

src/lib/data/access/StorageAccessProxy.h

@@ -16,6 +16,8 @@ public:
 	virtual Id getIdForNodeWithName(const std::string& name) const;
 	virtual Id getIdForEdgeWithName(const std::string& name) const;
 
+	virtual std::vector<FileInfo> getInfoOnAllFiles() const;
+
 	virtual std::string getNameForNodeWithId(Id id) const;
 	virtual Node::NodeType getNodeTypeForNodeWithId(Id id) const;
 	virtual std::vector<SearchMatch> getAutocompletionMatches(