global contextual logger support

example/example.cpp

@@ -383,11 +383,9 @@ void replace_default_logger_example()
 }
 
 void attribute_example() {
-    auto custom_logger = spdlog::stdout_color_mt("custom_logger");
+    spdlog::push_context(spdlog::attribute_list{{"attribute_key", "attribute value"}});
-
+    spdlog::warn("EXPERIMENTAL: log with attributes");
-    custom_logger->push_context(spdlog::attribute_list{{"attribute_key", "attribute value"}});
+    spdlog::clear_context();
-    custom_logger->warn("EXPERIMENTAL: log with attributes");
-    custom_logger->clear_context();
 
     // structured logging using attributes
 

include/spdlog/spdlog.h

@@ -131,6 +131,18 @@ SPDLOG_API spdlog::logger *default_logger_raw();
 
 SPDLOG_API void set_default_logger(std::shared_ptr<spdlog::logger> default_logger);
 
+inline void push_context(attribute_list attrs) {
+    default_logger_raw()->push_context(std::move(attrs));
+}
+
+inline void pop_context() {
+    default_logger_raw()->pop_context();
+}
+
+inline void clear_context() {
+    default_logger_raw()->clear_context();
+}
+
 template<typename... Args>
 inline void log(source_loc source, level::level_enum lvl, format_string_t<Args...> fmt, Args &&... args)
 {