fix(logs): add debug output for structured logs when debug option is enabled (#1466)

* add printf for logs when debug is true

* use existing SENTRY_(LEVEL) macros

* update CHANGELOG.md

* add future TODO + fix null-log

* make debug_print_log static

Author: JoshuaMoelans

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 - Removed the 10-item limit per envelope for non-session data. Sessions are now limited to 100 per envelope, while other items (e.g., attachments) have no limit in amount. ([#1347](https://github.com/getsentry/sentry-native/pull/1347))
 - Align the `breakpad` interface changes introduced with [#1083](https://github.com/getsentry/sentry-native/pull/1083) with the corresponding iOS build. ([#1465](https://github.com/getsentry/sentry-native/pull/1465))
+- Add structured logs to debug output when `debug` option is set. ([#1466](https://github.com/getsentry/sentry-native/pull/1466))
 
 ## 0.12.2
 

src/sentry_logger.h

@@ -46,4 +46,9 @@ void sentry__logger_disable(void);
 
 #define SENTRY_ERROR(message) sentry__logger_log(SENTRY_LEVEL_ERROR, message)
 
+#define SENTRY_FATALF(message, ...)                                            \
+    sentry__logger_log(SENTRY_LEVEL_FATAL, message, __VA_ARGS__)
+
+#define SENTRY_FATAL(message) sentry__logger_log(SENTRY_LEVEL_FATAL, message)
+
 #endif

src/sentry_logs.c

@@ -752,6 +752,33 @@ construct_log(sentry_level_t level, const char *message, va_list args)
     return log;
 }
 
+static void
+debug_print_log(sentry_level_t level, const char *log_body)
+{
+    // TODO if we enable our debug-macro as logging integration
+    //  we need to avoid recursion here
+    switch (level) {
+    case SENTRY_LEVEL_TRACE:
+        SENTRY_TRACEF("LOG: %s", log_body);
+        break;
+    case SENTRY_LEVEL_DEBUG:
+        SENTRY_DEBUGF("LOG: %s", log_body);
+        break;
+    case SENTRY_LEVEL_INFO:
+        SENTRY_INFOF("LOG: %s", log_body);
+        break;
+    case SENTRY_LEVEL_WARNING:
+        SENTRY_WARNF("LOG: %s", log_body);
+        break;
+    case SENTRY_LEVEL_ERROR:
+        SENTRY_ERRORF("LOG: %s", log_body);
+        break;
+    case SENTRY_LEVEL_FATAL:
+        SENTRY_FATALF("LOG: %s", log_body);
+        break;
+    }
+}
+
 log_return_value_t
 sentry__logs_log(sentry_level_t level, const char *message, va_list args)
 {
@@ -774,6 +801,11 @@ sentry__logs_log(sentry_level_t level, const char *message, va_list args)
                     discarded = true;
                 }
             }
+            if (options->debug && !sentry_value_is_null(log)) {
+                debug_print_log(level,
+                    sentry_value_as_string(
+                        sentry_value_get_by_key(log, "body")));
+            }
         }
         if (discarded) {
             return SENTRY_LOG_RETURN_DISCARD;