add logger

src/log.c

@@ -0,0 +1,3 @@
+#include "log.h"
+
+unsigned int logLevel = LOG_LEVEL_ERROR;

src/log.h

@@ -0,0 +1,31 @@
+#ifndef LOG_H
+#define LOG_H
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define LOG_LEVEL_NONE 0
+#define LOG_LEVEL_FATAL 1
+#define LOG_LEVEL_ERROR 2
+#define LOG_LEVEL_WARN 3
+#define LOG_LEVEL_INFO 4
+#define LOG_LEVEL_DEBUG 5
+
+extern unsigned int logLevel;
+
+// Logging macros
+#define FATAL_COL  "\x1B[4;31m"
+#define ERROR_COL  "\x1B[91m"
+#define WARN_COL   "\x1B[33m"
+#define INFO_COL   "\x1B[34m"
+#define DEBUG_COL  "\x1B[90m"
+#define NORMAL_COL "\x1B[0m"
+
+#define FATAL(...) if (logLevel >= LOG_LEVEL_FATAL) { printf("| %sFATAL%s | ", FATAL_COL, NORMAL_COL); printf(__VA_ARGS__); }
+#define ERROR(...) if (logLevel >= LOG_LEVEL_ERROR) { printf("| %sERROR%s | ", ERROR_COL, NORMAL_COL); printf(__VA_ARGS__); }
+#define WARN(...)  if (logLevel >= LOG_LEVEL_WARN)  { printf("| %sWARN%s  | ", WARN_COL,  NORMAL_COL); printf(__VA_ARGS__); }
+#define INFO(...)  if (logLevel >= LOG_LEVEL_INFO)  { printf("| %sINFO%s  | ", INFO_COL,  NORMAL_COL); printf(__VA_ARGS__); }
+#define DEBUG(...) if (logLevel >= LOG_LEVEL_DEBUG) { printf("| %sDEBUG%s | ", DEBUG_COL, NORMAL_COL); printf(__VA_ARGS__); }
+
+#endif // LOG_H