ModuleLogger

A logging provider for the rust log crate that can be dynamically configured on a module basis.

lib.rs:

A consumer for the log crate

The crate implements a logger that allows module-wise configuration of logging through configuration files or an API.

Features

• Log output can be written to stdout, stderr, to file or to a memory buffer.
• Log output can be colored.
• Features can be set using a configuration file or the API

The configuration file can be enabled by setting the environment variable LOG_CONFIG to the path of the file. The configuration is specified in YAML format and allows to set the following values. All values are optional.

• default_level: The default log level, one of trace, debug, info, warn, error, defaults to info
• mod_level: A list of module name and log level pairs
• log_dest: One of stdout, stderr, stream, buffer, streamstdout, streamstderr, bufferstdout, bufferstderr.
• log_stream: The log file name for stream variants of log_dest
• color: one of true or false
• brief_info: one of true or false

Sample:

log_level: warn
log_dest: streamstderr
log_stream: debug.log
color: true
brief_info: true
mod_level:
  'test_mod': debug
  'test_mod::test_test': trace