feat: default log level to WARNING, add -v/--verbose flag

src/client/client.c

@@ -214,6 +214,7 @@ static void print_usage(void) {
   printf("  -m                  Enable multithreading\n");
   printf("  -s                  Enable chunk serialization\n");
   printf("  -f                  Enable sendfile (TCP only, not with -c or -s)\n");
+  printf("  -v, --verbose       Enable debug logging\n");
   printf("  -M, --preserve      Preserve file metadata\n");
   printf("  --source-dir <path> Source directory\n");
   printf("  --dest-dir <path>   Destination directory\n");
@@ -282,6 +283,8 @@ int main(int argc, char *argv[]) {
       server_host = str_dup(argv[++i]);
     } else if (strcmp(argv[i], "--server-port") == 0 && i + 1 < argc) {
       server_port = atoi(argv[++i]);
+    } else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) {
+      set_log_level(LOG_LEVEL_DEBUG);
     } else if (argv[i][0] == '-') {
       fprintf(stderr, "Unknown option: %s\n", argv[i]);
       print_usage();

src/server/server.c

@@ -169,10 +169,14 @@ void handler(int file_descriptor) {
 }
 
 int main(int argc, char *argv[]) {
-  if (argc > 1 && strcmp(argv[1], "--stdio") == 0) {
-    io_set_fds(STDIN_FILENO, STDOUT_FILENO);
-    handler(STDIN_FILENO);
-    return 0;
+  for (int i = 1; i < argc; i++) {
+    if (strcmp(argv[i], "--stdio") == 0) {
+      io_set_fds(STDIN_FILENO, STDOUT_FILENO);
+      handler(STDIN_FILENO);
+      return 0;
+    } else if (strcmp(argv[i], "-v") == 0 || strcmp(argv[i], "--verbose") == 0) {
+      set_log_level(LOG_LEVEL_DEBUG);
+    }
   }
   Server *server = server_create(8080);
   server_listen(server, handler);

src/shared/log.c

@@ -4,7 +4,11 @@
 #include <time.h>
 
 static const char *log_level_strings[] = {"DEBUG", "INFO", "WARN", "ERROR"};
-static LogLevel current_log_level = LOG_LEVEL_DEBUG;
+static LogLevel current_log_level = LOG_LEVEL_WARNING;
+
+void set_log_level(LogLevel level) {
+  current_log_level = level;
+}
 
 void log_message(LogLevel log_level, char *format, ...) {
   if (log_level < current_log_level)

src/shared/log.h

@@ -9,5 +9,6 @@ typedef enum {
 } LogLevel;
 
 void log_message(LogLevel log_level, char *message, ...);
+void set_log_level(LogLevel level);
 
 #endif