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Support custom environment variables for load_env_levels (#3327)

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SPDLOG_LEVEL is currently supported to control log levels via
load_env_levels.

This patch adds support for other environment variable names, such as
MYAPP_LEVEL, for load_env_levels.
This commit is contained in:
Ken Matsui
2025-01-23 16:00:23 -05:00
committed by GitHub
parent 7cbf2a6967
commit ae1de0dc8c
4 changed files with 17 additions and 2 deletions
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3
example/example.cpp
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@@ -148,6 +148,9 @@ void load_levels_example() {
// Set the log level to "info" and mylogger to "trace":
// SPDLOG_LEVEL=info,mylogger=trace && ./example
spdlog::cfg::load_env_levels();
// or specify the env variable name:
// MYAPP_LEVEL=info,mylogger=trace && ./example
// spdlog::cfg::load_env_levels("MYAPP_LEVEL");
// or from command line:
// ./example SPDLOG_LEVEL=info,mylogger=trace
// #include "spdlog/cfg/argv.h" // for loading levels from argv