Log any expressions — with_loggit • loggit2

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.

Value

The result of the expression.

Details

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

Examples

if (FALSE) { # \dontrun{
 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
 })
} # }