core: logging: print errors and warnings in color

Print warnings and errors in yellow and red respectively. This will make
these messages stand out and make it easier for a developer to find them
in the terminal window.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 18 insertions, 6 deletions

diff --git a/core/logging.c b/core/logging.c
index 98ee55b..df97b4d 100644
--- a/core/logging.c
+++ b/core/logging.c
@@ -3,11 +3,13 @@
 #include <string.h>
 #include <stdarg.h>
 
-#define LSTR_FATAL      "[FATAL]"
-#define LSTR_ERROR      "[ERROR]"
-#define LSTR_WARN       "[WARNING]"
-#define LSTR_INFO       "[INFO]"
-#define LSTR_DEBUG      "[DEBUG]"
+#define LSTR_FATAL      "\033[31m[FATAL]"
+#define LSTR_ERROR      "\033[31m[ERROR]"
+#define LSTR_WARN       "\033[33m[WARNING]"
+#define LSTR_INFO       "\033[0m[INFO]"
+#define LSTR_DEBUG      "\033[32m[DEBUG]"
+
+static int debug_enabled = 0;
 
 void log_output(int level, const char *fmt, ...) {
         char out[8192];
@@ -33,8 +35,18 @@ void log_output(int level, const char *fmt, ...) {
                         lvl_str = LSTR_INFO;
                         break;
                 case LOG_DEBUG:
+                        if (debug_enabled == 0)
+                                return;
                         lvl_str = LSTR_DEBUG;
                         break;
         }
-        printf("%s %s\n", lvl_str, out);
+        printf("%s %s\n%s", lvl_str, out, "\033[0m");
+}
+
+void enable_log_debug(void) {
+        debug_enabled = 1;
+}
+
+void disable_log_debug(void) {
+        debug_enabled = 0;
 }