with_loggit: Log any expressions

In loggit2: Easy-to-Use, Dependencyless Logger

Log any expressions

Description

Log code without having to explicitly use the loggit2 handlers. This is particularly useful for code that cannot be customized, e.g. from third-party packages.

Usage

with_loggit(
  exp,
  logfile = get_logfile(),
  echo = get_echo(),
  log_level = get_log_level()
)

Arguments

exp	An expression to evaluate.
logfile	Path of log file to write to.
echo	Should the log entry (json) be echoed to stdout as well?
log_level	The log level to use.

Details

If loggit2 handlers are already used in the expression, this can lead to conditions being logged twice (in the same or different files).

Value

The result of the expression.

Examples

## Not run: 
 x <- with_loggit(5L + 5L)

 with_loggit(base::message("Test log message"))

 with_loggit(base::warning("Test log message"), echo = FALSE, logfile = "my_log.log")

 x <- with_loggit({
    y <- 5L
    base::message("Test log message")
    base::warning("Test log message")
    1L + y
 })

## End(Not run)

loggit2 documentation built on June 8, 2025, 10:26 a.m.