initialise a memory structure or smth

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

src/util/log.cc

@@ -0,0 +1,49 @@
+#include "log.hh"
+
+namespace logging {
+
+namespace ansi {
+static const char* RED     = "\033[31m";
+static const char* YELLOW  = "\033[33m";
+static const char* MAGENTA = "\033[35m";
+static const char* WHITE   = "\033[37m";
+static const char* BOLD    = "\033[1m";
+static const char* RESET   = "\033[0m";
+}
+
+Logger::Logger(std::ostream& os)
+  : os(os){};
+
+void
+Logger::set_level(Level level) {
+    switch (level) {
+        case Level::Debug:
+            os << ansi::MAGENTA << ansi::BOLD << "[DEBUG] ";
+            break;
+
+        case Level::Info:
+            os << ansi::WHITE << "[INFO] ";
+            break;
+
+        case Level::Warn:
+            os << ansi::YELLOW << "[WARN] ";
+            break;
+
+        case Level::Error:
+            os << ansi::RED << ansi::BOLD << "[ERROR] ";
+            break;
+
+            // unreachable
+        default: {
+        }
+    }
+}
+
+void
+Logger::reset_level() {
+    os << ansi::RESET;
+}
+}
+
+// Global logger
+logging::Logger logger;