core/log: add filesystem logger

src/core/filelogger.cpp

@@ -0,0 +1,60 @@
+#include "filelogger.hpp"
+
+#include <qlogging.h>
+#include <qloggingcategory.h>
+#include <qnamespace.h>
+#include <qobject.h>
+#include <qobjectdefs.h>
+#include <qtextstream.h>
+
+#include "filelogger_p.hpp"
+#include "logging.hpp"
+#include "paths.hpp"
+
+Q_LOGGING_CATEGORY(logLogger, "quickshell.logger", QtWarningMsg);
+
+void FileLoggerThread::init() {
+	auto* thread = new FileLoggerThread();
+	auto* logger = new FileLogger();
+	logger->moveToThread(thread);
+	thread->start();
+	QMetaObject::invokeMethod(logger, "init", Qt::BlockingQueuedConnection);
+}
+
+void FileLogger::init() {
+	qCDebug(logLogger) << "Initializing filesystem logger...";
+	auto* runDir = QsPaths::instance()->instanceRunDir();
+
+	if (!runDir) {
+		qCCritical(logLogger
+		) << "Could not start filesystem logger as the runtime directory could not be created.";
+		return;
+	}
+
+	auto path = runDir->filePath("log.log");
+	auto* file = new QFile(path);
+
+	if (!file->open(QFile::WriteOnly | QFile::Truncate)) {
+		qCCritical(logLogger
+		) << "Could not start filesystem logger as the log file could not be created:"
+		  << path;
+		return;
+	}
+
+	this->fileStream.setDevice(file);
+
+	QObject::connect(
+	    LogManager::instance(),
+	    &LogManager::logMessage,
+	    this,
+	    &FileLogger::onMessage,
+	    Qt::QueuedConnection
+	);
+
+	qDebug(logLogger) << "Initialized filesystem logger";
+}
+
+void FileLogger::onMessage(const LogMessage& msg) {
+	LogManager::formatMessage(this->fileStream, msg, false);
+	this->fileStream << Qt::endl;
+}