48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
|
|
// Distributed under the MIT License (http://opensource.org/licenses/MIT)
|
|
|
|
#pragma once
|
|
#include <spdlog/cfg/text_loader.h>
|
|
#include <spdlog/details/os.h>
|
|
|
|
//
|
|
// Init levels and patterns from env variables SPDLOG_LEVEL
|
|
// Inspired from Rust's "env_logger" crate (https://crates.io/crates/env_logger).
|
|
// Note - fallback to "info" level on unrecognized levels
|
|
//
|
|
// Examples:
|
|
//
|
|
// set global level to debug:
|
|
// export SPDLOG_LEVEL=debug
|
|
//
|
|
// turn off all logging except for logger1:
|
|
// export SPDLOG_LEVEL="off,logger1=debug"
|
|
//
|
|
// turn off all logging except for logger1 and logger2:
|
|
// export 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
|
|
void init_from_argv(int args, char *argv[])
|
|
{
|
|
if (args < 2)
|
|
{
|
|
return;
|
|
}
|
|
const std::string spdlog_level_prefix = "SPDLOG_LEVEL=";
|
|
for (int i = 0; i < args; i++)
|
|
{
|
|
std::string arg = argv[i];
|
|
if (arg.find(spdlog_level_prefix) == 0)
|
|
{
|
|
auto cfg_string = arg.substr(spdlog_level_prefix.size());
|
|
auto levels = text_loader::load_levels(cfg_string);
|
|
spdlog::details::registry::instance().set_levels(levels);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
} // namespace cfg
|
|
} // namespace spdlog
|