lgr: with_log_level – R documentation

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lgr

with_log_level

Inject Values into Logging Calls

Description

with_log_level temporarily overrides the log level of all LogEvents created by target Logger.

Usage

with_log_level(level, code, logger = lgr::lgr)

with_log_value(values, code, logger = lgr::lgr)

Arguments

`level`	`integer` or `character` scalar: the desired log level
`code`	Any R code
`logger`	a Logger or the name of one (see `get_logger()`). Defaults to the root logger (`lgr::lgr`).
`values`	a named `list` of values to be injected into the logging calls

Details

These functions abuses lgr's filter mechanic to modify LogEvents in-place before they passed on the Appenders. Use with care as they can produce hard to reason about code.

Value

whatever code would return

Examples

with_log_level("warn", {
  lgr$info("More important than it seems")
  lgr$fatal("Really not so bad")
})
with_log_value(
  list(msg = "overriden msg"),  {
  lgr$info("bar")
  lgr$fatal("FOO")
})

lgr

A Fully Featured Logging Framework

v0.4.2

MIT + file LICENSE

Authors

Stefan Fleck [aut, cre] (<https://orcid.org/0000-0003-3344-9851>)

Initial release