Host: Add GetResourceFileTimestamp()

pcsx2-qt/QtHost.cpp

@@ -1362,6 +1362,16 @@ std::optional<std::string> Host::ReadResourceFileToString(const char* filename)
 	return ret;
 }
 
+std::optional<std::time_t> Host::GetResourceFileTimestamp(const char* filename)
+{
+	const std::string path(Path::Combine(EmuFolders::Resources, filename));
+	FILESYSTEM_STAT_DATA sd;
+	if (!FileSystem::StatFile(filename, &sd))
+		return std::nullopt;
+
+	return sd.ModificationTime;
+}
+
 void Host::ReportErrorAsync(const std::string_view& title, const std::string_view& message)
 {
 	if (!title.empty() && !message.empty())

pcsx2/Host.h

@@ -17,6 +17,7 @@
 
 #include "common/Pcsx2Defs.h"
 
+#include <ctime>
 #include <functional>
 #include <string>
 #include <string_view>
@@ -52,6 +53,9 @@ namespace Host
 	/// Reads a resource file file from the resources directory as a string.
 	std::optional<std::string> ReadResourceFileToString(const char* filename);
 
+	/// Returns the modified time of a resource.
+	std::optional<std::time_t> GetResourceFileTimestamp(const char* filename);
+
 	/// Adds OSD messages, duration is in seconds.
 	void AddOSDMessage(std::string message, float duration = 2.0f);
 	void AddKeyedOSDMessage(std::string key, std::string message, float duration = 2.0f);

pcsx2/gui/AppHost.cpp

@@ -84,6 +84,16 @@ std::optional<std::string> Host::ReadResourceFileToString(const char* filename)
 	return ret;
 }
 
+std::optional<std::time_t> Host::GetResourceFileTimestamp(const char* filename)
+{
+	const std::string path(Path::Combine(EmuFolders::Resources, filename));
+	FILESYSTEM_STAT_DATA sd;
+	if (!FileSystem::StatFile(filename, &sd))
+		return std::nullopt;
+
+	return sd.ModificationTime;
+}
+
 bool Host::GetBoolSettingValue(const char* section, const char* key, bool default_value /* = false */)
 {
 	return default_value;