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cache/fscache.cpp

@@ -0,0 +1,62 @@
+#include <filesystem>
+#include <fstream>
+#include "fscache.h"
+#include "../logger.h"
+
+FsCache::FsCache(std::string path)
+{
+	if(!std::filesystem::exists(path))
+	{
+		throw std::runtime_error{"Directory does not exist"};
+	}
+	this->path = path;
+}
+
+std::string FsCache::getFilePath(std::string_view path) const
+{
+	std::filesystem::path ps{path};
+	std::string name = ps.filename();
+	return std::filesystem::path{this->path} / name;
+}
+std::optional<std::string> FsCache::get(std::string_view key) const
+{
+	std::string path = getFilePath(key);
+	if(std::filesystem::exists(path))
+	{
+		return utils::readCompleteFile(path);
+	}
+	return {};
+}
+
+void FsCache::put(std::string_view key, std::string val)
+{
+	std::string path = std::filesystem::path{this->path} / key;
+	std::fstream f1;
+	f1.open(path, std::ios::out);
+	f1 << val;
+}
+
+void FsCache::remove(std::string_view key)
+{
+	std::filesystem::remove_all(std::filesystem::path{this->path} / key);
+}
+
+void FsCache::removePrefix(std::string_view prefix)
+{
+	// TODO: lock dir
+	for(auto &entry : std::filesystem::directory_iterator(std::filesystem::path{this->path}))
+	{
+		if(static_cast<std::string>(entry.path().filename()).find(prefix) == 0)
+		{
+			std::filesystem::remove_all(entry);
+		}
+	}
+}
+
+void FsCache::clear()
+{
+	for(auto &entry : std::filesystem::directory_iterator(std::filesystem::path{this->path}))
+	{
+		std::filesystem::remove_all(entry);
+	}
+}