read write cluster file (#60)

* Read and write cluster files (save work)

* add reading test

* use define for examples env variable and fix ci

* read and write cluster files (working)

* fix cluster CI

utils/include/aare/utils/compare_files.hpp

@@ -0,0 +1,37 @@
+#include <algorithm>
+#include <filesystem>
+#include <fstream>
+#include <iterator>
+#include <string>
+
+namespace aare {
+
+/**
+ * @brief Compare two files
+ *
+ * @param p1 path to the first file
+ * @param p2 path to the second file
+ * @return true if the files are the same, false otherwise
+ */
+bool compare_files(const std::string &p1, const std::string &p2) {
+    std::ifstream f1(p1, std::ifstream::binary | std::ifstream::ate);
+    std::ifstream f2(p2, std::ifstream::binary | std::ifstream::ate);
+
+    if (f1.fail() || f2.fail()) {
+        return false; // file problem
+    }
+
+    if (f1.tellg() != f2.tellg()) {
+        return false; // size mismatch
+    }
+
+    // seek back to beginning and use std::equal to compare contents
+    f1.seekg(0, std::ifstream::beg);
+    f2.seekg(0, std::ifstream::beg);
+    return std::equal(std::istreambuf_iterator<char>(f1.rdbuf()), std::istreambuf_iterator<char>(),
+                      std::istreambuf_iterator<char>(f2.rdbuf()));
+}
+bool compare_files(const std::filesystem::path &p1, const std::filesystem::path &p2) {
+    return compare_files(p1.string(), p2.string());
+}
+} // namespace aare

utils/include/aare/utils/logger.hpp

@@ -244,7 +244,7 @@ extern aare::logger::Logger logger_instance; // NOLINT
  * @param s arguments to log
  * @return void
  */
-template <LOGGING_LEVEL level, typename... Strings> void log(const Strings... s) {
+template <LOGGING_LEVEL level, typename... Strings> void log(const Strings... s) noexcept {
     internal::logger_instance.log<level>(s...);
 }
 /**