Merge pull request #17 from cmarcusreid/ignoreIndexLock

Ignore file change events to "index.lock" and ".git" when invalidatin…

src/GitStatusCache/src/CacheInvalidator.cpp

@@ -38,6 +38,13 @@ void CacheInvalidator::MonitorRepositoryDirectories(const Git::Status& status)
 
 void CacheInvalidator::OnFileChanged(DirectoryMonitor::Token token, const boost::filesystem::path& path, DirectoryMonitor::FileAction action)
 {
+	if (CacheInvalidator::ShouldIgnoreFileChange(path))
+	{
+		Log("CacheInvalidator.OnFileChanged.IgnoringFileChange", Severity::Spam)
+			<< R"(Ignoring file change. { "filePath": ")" << path.c_str() << R"(" })";
+		return;
+	}
+
 	std::string repositoryPath;
 	{
 		ReadLock readLock(m_tokensToRepositoriesMutex);
@@ -61,4 +68,13 @@ void CacheInvalidator::OnFileChanged(DirectoryMonitor::Token token, const boost:
 	}
 
 	m_cachePrimer.SchedulePrimingForRepositoryPathInFiveSeconds(repositoryPath);
+}
+
+/*static*/ bool CacheInvalidator::ShouldIgnoreFileChange(const boost::filesystem::path& path)
+{
+	if (!path.has_filename())
+		return false;
+
+	auto filename = path.filename();
+	return filename.wstring() == L"index.lock" || filename.wstring() == L".git";
 }

src/GitStatusCache/src/CacheInvalidator.h

@@ -22,6 +22,11 @@ class CacheInvalidator
 	std::unordered_map<DirectoryMonitor::Token, std::string> m_tokensToRepositories;
 	boost::shared_mutex m_tokensToRepositoriesMutex;
 
+	/**
+	* Checks if the file change can be safely ignored.
+	*/
+	static bool ShouldIgnoreFileChange(const boost::filesystem::path& path);
+
 	/**
 	* Handles file change notifications by invalidating cache entries and scheduling priming.
 	*/