Compress previous logs and dump files on launch (#73)

* added zlib + gzip

Co-authored-by: Nathan TIEN YOU <nathan.tienyou@viacesi.fr>

1 files changed, 64 insertions, 0 deletions

diff --git a/NorthstarDedicatedTest/logCompression.cpp b/NorthstarDedicatedTest/logCompression.cpp
new file mode 100644
index 00000000..d9e89fdf
--- /dev/null
+++ b/NorthstarDedicatedTest/logCompression.cpp
@@ -0,0 +1,64 @@
+#include "pch.h"
+#include "logCompression.h"
+#include <fstream>
+#include <string>
+#include <iostream>
+#include <filesystem>
+#include "configurables.h"
+#include "zlib/gzip/compress.hpp"
+#include "zlib/gzip/config.hpp"
+#include <zlib.h>
+
+#define CHUNK 16384
+
+namespace fs = std::filesystem;
+using namespace std;
+
+bool compressFile(const fs::path path)
+{
+	// read log file
+	ofstream output;
+	string filename(path.string());
+	cout << "Compressing : '" + filename + "'" << endl;
+	ifstream input(filename, ios_base::binary);
+	if (!input.is_open())
+	{
+		cerr << "Could not open : '" + filename + "'" << endl;
+		return false;
+	}
+	string log_data((istreambuf_iterator<char>(input.rdbuf())), istreambuf_iterator<char>());
+	input.close();
+	// compress log file
+	string compressed_data = gzip::compress(log_data.data(), log_data.size());
+	// write log file gzip
+	output.open(filename + ".gz");
+	if (!output.is_open())
+	{
+		cerr << "Could not write : '" + filename + "'" << endl;
+		return false;
+	}
+	output << compressed_data;
+	output.close();
+	// delete log file
+	remove(path);
+	if (std::ifstream(path))
+	{
+		cerr << "Error deleting : '%s'" + filename + "'" << endl;
+		return false;
+	}
+	return true;
+}
+
+void CompressLogFiles()
+{
+	string path = GetNorthstarPrefix() + "/logs";
+	for (const auto& entry : fs::directory_iterator(path))
+	{
+		fs::path link = entry.path();
+		string extension = link.extension().string();
+		if (extension == ".txt" || extension == ".dmp")
+		{
+			compressFile(link);
+		}
+	}
+}
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