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-rw-r--r--include/spdlog/cfg/argv.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/spdlog/cfg/argv.h b/include/spdlog/cfg/argv.h
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+++ b/include/spdlog/cfg/argv.h
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+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+#include <spdlog/cfg/helpers.h>
+#include <spdlog/details/registry.h>
+
+//
+// Init log levels using each argv entry that starts with "SPDLOG_LEVEL="
+//
+// set all loggers to debug level:
+// example.exe "SPDLOG_LEVEL=debug"
+
+// set logger1 to trace level
+// example.exe "SPDLOG_LEVEL=logger1=trace"
+
+// turn off all logging except for logger1 and logger2:
+// example.exe "SPDLOG_LEVEL=off,logger1=debug,logger2=info"
+
+namespace spdlog {
+namespace cfg {
+
+// search for SPDLOG_LEVEL= in the args and use it to init the levels
+inline void load_argv_levels(int argc, const char **argv)
+{
+ const std::string spdlog_level_prefix = "SPDLOG_LEVEL=";
+ for (int i = 1; i < argc; i++)
+ {
+ std::string arg = argv[i];
+ if (arg.find(spdlog_level_prefix) == 0)
+ {
+ auto levels_string = arg.substr(spdlog_level_prefix.size());
+ helpers::load_levels(levels_string);
+ }
+ }
+}
+
+inline void load_argv_levels(int argc, char **argv)
+{
+ load_argv_levels(argc, const_cast<const char **>(argv));
+}
+
+} // namespace cfg
+} // namespace spdlog