package easy_logging_yojson

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Configuration loader for easy_logging with yojson backend

Install

dune-project

Dependency

md5=2c805f25050b6917a4c99edbd3bb73fb

sha512=a20aa4cbcbfa4b8241daf4775f86e91ed3b91dcec51ad628edff5d6857354e63d93c312c023a5c0e59f2924f051d618636701563933e89762af63679f981f18b

Provides deserialisation of logging configuration (loggers instantation and handlers parameters) from json, using ppx_deriving_yojson.

 Logging infrastructure inspired by the Python logging module.

The aim of this module is to provide a quick and easy to use logging infrastructure.

It has the following features :

one line logger creation
log messages printf style, or [string] or [string lazy_t]
tree logging architecture for light configuration
handlers associated to each logger will format, filter and treat the message independantly.
use the infrastructure with your own handlers with the [MakeLogging] functor.
use tags to add contextual information to log messages

Logging module for OCaml.

Quick start :

open Easy_logging
logger = Logging.make_logger "my_logger" Debug [Cli Debug];;
logger#info "log_message";;

See documentation at https://sapristi.github.io/easy_logging/easy_logging

printf style logging is now the default
simplifed configuration in case of multiple loggers (and closer to the python module) : the loggers form a tree (based on their name, dots indicating descendence)
- log items are passed to the handlers of a logger’s ancestors (so that few handlers need initialisation) (possible to override)
- loggers inherit the level of their ancestor if not set explicitely
an additional package easy_logging_yojson provides initialisation of loggers from the json format (with ppx_deriving_yojson), so that configuration can be fully done outside the code.

Renamed the Default_handlers module to handlers
tag type in Handlers is now string (was unit)
added the possibility to add filters to handlers
added tag_generator feature to loggers, to automatically add tags to all messages passed to a logger

log_level type is direcly accessible from Easy_logging and Easy_logging_yojson modules

Added more options to file handlers (automatic timestamps and/or versioning of file names)
Added CliErr handler to output to stderr
modified handlers type so that fully custom handlers can be instantiated
cleaned module API
log items contains a timestamp

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