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Severity-tagged logging helpers

Source: R/log_msg.R
severity_logging.Rd

Thin wrappers around log_msg that prepend a severity tag ([INFO], [WARN], [ERROR], [FATAL]) after the timestamp. Use these in place of bare prefixes (e.g. "WARNING:", "ERROR:") so that a downstream consumer can filter by severity with a single regex.

Usage

log_info(msg, ...)

log_warn(msg, ...)

log_error(msg, ...)

log_fatal(msg, ...)

Arguments

msg

Character string with optional sprintf-style placeholders.

...

Additional arguments passed to sprintf.

Value

Invisible NULL.

Details

log_fatal is intended to be called immediately before a stop() or an early-return failure exit — it records the terminal status in the log file so that a tailing process can grep one canonical line instead of guessing whether the pipeline aborted.

Examples

if (FALSE) { # \dontrun{
log_info("Calibration converged after %d batches", 12L)
log_warn("Worker %d returned non-finite likelihood; dropping", 33L)
log_error("client$gather() failed: %s", "ConnectionError")
log_fatal("Best-seed sample_parameters failed; cannot continue")
} # }